Merge pull request #97 from muety/actions

fix(ci): actions release, build on push/pr
2023-08-10 21:12:56 +03:00 · 2021-01-24 12:23:05 +01:00 · 2021-01-24 22:06:04 +11:00 · 2021-01-24 09:54:54 +01:00 · 2021-01-24 09:50:04 +01:00 · 2021-01-24 10:19:20 +11:00
117 changed files with 5764 additions and 1742 deletions
--- a/.dockerignore
+++ b/.dockerignore
@ -1 +1,10 @@
-.env
+.env
+config*.yml
+!config.default.yml
+*.db
+*.exe
+wakapi
+Dockerfile
+docker-compose.yml
+.dockerignore
+.git*
--- a/.env.example
+++ b/.env.example
@ -1,8 +0,0 @@
-ENV=dev
-WAKAPI_DB_TYPE=sqlite3                  # mysql, postgres, sqlite3
-WAKAPI_DB_NAME=wakapi_db.db             # database name for mysql / postgres or file path for sqlite (e.g. /tmp/wakapi.db)
-WAKAPI_DB_USER=myuser                   # ignored when using sqlite
-WAKAPI_DB_PASSWORD=shhh                 # ignored when using sqlite
-WAKAPI_DB_HOST=localhost                # ignored when using sqlite
-WAKAPI_DB_PORT=3306                     # ignored when using sqlite
-WAKAPI_PASSWORD_SALT=shhh               # CHANGE !
--- a/.github/workflows/linux-build-on-release.yml
+++ b/.github/workflows/linux-build-on-release.yml
@ -1,13 +1,15 @@
 name: Build Wakapi on Linux

 on:
+  push:
+  pull_request:
  release:
-    types: 
+    types:
      - created

 jobs:
  build-and-release:
-    name: Build and add to Release
+    name: Build
    runs-on: ubuntu-latest
    steps:

@ -22,17 +24,21 @@ jobs:

    - name: Get dependencies
      run: |
-        go get -v -t -d ./...
-      
+        go get github.com/markbates/pkger/cmd/pkger
+        go get
+        go generate
+
    - name: Build
      run: GO111MODULE=on go build -v .

-    - name: Zip Release
-      uses: TheDoctor0/zip-release@v0.3.0
-      with:
-        filename: release.zip
+    - name: Zip executable and sample config
+      if: github.event_name == 'release'
+      run: |
+        cp config.default.yml config.yml
+        zip -9 release.zip wakapi config.yml

    - name: Upload built executable to Release
+      if: github.event_name == 'release'
      uses: actions/upload-release-asset@v1.0.2
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/win-build-on-release.yml
+++ b/.github/workflows/win-build-on-release.yml
@ -1,13 +1,15 @@
 name: Build Wakapi on Windows

 on:
+  push:
+  pull_request:
  release:
-    types: 
+    types:
      - created

 jobs:
  build-and-release:
-    name: Build and add to release
+    name: Build
    runs-on: windows-latest
    steps:

@ -22,18 +24,24 @@ jobs:

    - name: Get dependencies
      run: |
-        go get -v -t -d ./...
+        go get github.com/markbates/pkger/cmd/pkger
+        go get
+        go generate

    - name: Enable Go 1.11 modules
      run: cmd /c "set GO111MODULE=on"
-      
+
    - name: Build
      run: go build -v .
-  
+
    - name: Compress working folder
-      run: Compress-Archive -Path .\* -DestinationPath release.zip
+      if: github.event_name == 'release'
+      run: |
+        cp .\config.default.yml .\config.yml
+        Compress-Archive -Path .\wakapi.exe, .\config.yml -DestinationPath release.zip

    - name: Upload built executable to Release
+      if: github.event_name == 'release'
      uses: actions/upload-release-asset@v1.0.2
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
--- a/.gitignore
+++ b/.gitignore
@ -5,4 +5,8 @@ wakapi
 .idea
 build
 *.exe
-*.db
+*.db
+config*.yml
+!config.default.yml
+config.ini
+pkged.go
--- a/50
+++ b/50
@ -1,49 +1,41 @@
 # Build Stage

-FROM golang:1.13 AS build-env
-ADD . /src
-RUN cd /src && go build -o wakapi
+FROM golang:1.15 AS build-env
+WORKDIR /src

+ADD ./go.mod .
+RUN go mod download && go get github.com/markbates/pkger/cmd/pkger

-# Final Stage
+ADD . .
+RUN go generate && go build -o wakapi
+
+WORKDIR /app
+RUN cp /src/wakapi . && \
+    cp /src/config.default.yml config.yml && \
+    sed -i 's/listen_ipv6: ::1/listen_ipv6: /g' config.yml && \
+    cp /src/wait-for-it.sh .
+
+# Run Stage

 # When running the application using `docker run`, you can pass environment variables
-# to override config values from .env using `-e` syntax.
-# Available options are:
-# – WAKAPI_DB_TYPE
-# – WAKAPI_DB_USER
-# – WAKAPI_DB_PASSWORD
-# – WAKAPI_DB_HOST
-# – WAKAPI_DB_PORT
-# – WAKAPI_DB_NAME
-# – WAKAPI_PASSWORD_SALT
-# – WAKAPI_BASE_PATH
+# to override config values using `-e` syntax.
+# Available options can be found in [README.md#-configuration](README.md#-configuration)

 FROM debian
 WORKDIR /app

-ENV ENV prod
+ENV ENVIRONMENT prod
 ENV WAKAPI_DB_TYPE sqlite3
 ENV WAKAPI_DB_USER ''
 ENV WAKAPI_DB_PASSWORD ''
 ENV WAKAPI_DB_HOST ''
 ENV WAKAPI_DB_NAME=/data/wakapi.db
 ENV WAKAPI_PASSWORD_SALT ''
+ENV WAKAPI_LISTEN_IPV4 '0.0.0.0'
+ENV WAKAPI_INSECURE_COOKIES 'true'

-COPY --from=build-env /src/wakapi /app/
-COPY --from=build-env /src/config.ini /app/
-COPY --from=build-env /src/version.txt /app/
-COPY --from=build-env /src/.env.example /app/.env
-
-RUN sed -i 's/listen = 127.0.0.1/listen = 0.0.0.0/g' /app/config.ini
-RUN sed -i 's/insecure_cookies = false/insecure_cookies = true/g' /app/config.ini
-
-ADD static /app/static
-ADD data /app/data
-ADD migrations /app/migrations
-ADD views /app/views
-ADD wait-for-it.sh .
+COPY --from=build-env /app .

 VOLUME /data

-ENTRYPOINT ./wait-for-it.sh
+ENTRYPOINT ./wait-for-it.sh
--- a/README.md
+++ b/README.md
@ -1,55 +1,103 @@
 # 📈 wakapi

-[![](http://img.shields.io/liberapay/receives/muety.svg?logo=liberapay&style=flat-square)](https://liberapay.com/muety/)
-[![Say thanks](https://img.shields.io/badge/SayThanks.io-%E2%98%BC-1EAEDB.svg?style=flat-square)](https://saythanks.io/to/n1try)
-![](https://img.shields.io/github/license/muety/wakapi?style=flat-square)
-[![Go Report Card](https://goreportcard.com/badge/github.com/muety/wakapi?style=flat-square)](https://goreportcard.com/report/github.com/muety/wakapi)
-![Coding Activity](https://img.shields.io/endpoint?url=https://apps.muetsch.io/wakapi/api/compat/shields/v1/n1try/interval:any/project:wakapi&style=flat-square&color=blue)
+![](https://badges.fw-web.space/github/license/muety/wakapi)
+![GitHub release (latest by date)](https://badges.fw-web.space/github/v/release/muety/wakapi)
+![GitHub code size in bytes](https://img.shields.io/github/languages/code-size/muety/wakapi)
+![Docker Cloud Build Status](https://badges.fw-web.space/docker/cloud/build/n1try/wakapi)
+![GitHub issues](https://img.shields.io/github/issues/muety/wakapi)
+![GitHub last commit](https://img.shields.io/github/last-commit/muety/wakapi)
+[![Say thanks](https://badges.fw-web.space/badge/SayThanks.io-%E2%98%BC-1EAEDB.svg)](https://saythanks.io/to/n1try)
+[![](https://badges.fw-web.space/liberapay/receives/muety.svg?logo=liberapay)](https://liberapay.com/muety/)
+![GitHub go.mod Go version](https://badges.fw-web.space/github/go-mod/go-version/muety/wakapi)
+[![Go Report Card](https://goreportcard.com/badge/github.com/muety/wakapi)](https://goreportcard.com/report/github.com/muety/wakapi)
+![Coding Activity](https://badges.fw-web.space/endpoint?url=https://wakapi.dev/api/compat/shields/v1/n1try/interval:any/project:wakapi&color=blue)
+[![Security Rating](https://sonarcloud.io/api/project_badges/measure?project=muety_wakapi&metric=security_rating)](https://sonarcloud.io/dashboard?id=muety_wakapi)
+[![Maintainability Rating](https://sonarcloud.io/api/project_badges/measure?project=muety_wakapi&metric=sqale_rating)](https://sonarcloud.io/dashboard?id=muety_wakapi)
+[![Technical Debt](https://sonarcloud.io/api/project_badges/measure?project=muety_wakapi&metric=sqale_index)](https://sonarcloud.io/dashboard?id=muety_wakapi)
+[![Lines of Code](https://sonarcloud.io/api/project_badges/measure?project=muety_wakapi&metric=ncloc)](https://sonarcloud.io/dashboard?id=muety_wakapi)
 ---

 **A minimalist, self-hosted WakaTime-compatible backend for coding statistics**

 ![Wakapi screenshot](https://anchr.io/i/bxQ69.png)

-If you like this project, please consider supporting it 🙂. You can donate either through [buying me a coffee](https://buymeacoff.ee/n1try) or becoming a GitHub sponsor. Every little donation is highly appreciated and boosts the developers' motivation to keep improving Wakapi!
+## 📬 **User Survey**
+I'd love to get some community feedback from active Wakapi users. If you like, please participate in the recent [user survey](https://github.com/muety/wakapi/issues/82). Thanks a lot!

-## Demo 
-🔥 **New:** There is hosted [demo version](https://apps.muetsch.io/wakapi) available now. Go check it out! Please use responsibly.
+## 👀  Demo
+🔥 **New:** Wakapi is available as a hosted service now. Check out **[wakapi.dev](https://wakapi.dev)**. Please use responsibly.

-To use the demo version set `api_url = https://apps.muetsch.io/wakapi/api/heartbeat`. However, this hosted instance might be taken down again in the future, so you might potentially lose your data ❕
+To use the hosted version set `api_url = https://wakapi.dev/api/heartbeat`. However, we do not guarantee data persistence, so you might potentially lose your data if the service is taken down some day ❕

-## Prerequisites
+## ⚙️ Prerequisites
 **On the server side:**
 * Go >= 1.13 (with `$GOPATH` properly set)
 * gcc (to compile [go-sqlite3](https://github.com/mattn/go-sqlite3))
    * Fedora / RHEL: `dnf install @development-tools`
    * Ubuntu / Debian: `apt install build-essential`
    * Windows: See [here](https://github.com/mattn/go-sqlite3/issues/214#issuecomment-253216476)
-* _Optional_: A MySQL- or Postgres database
+* _Optional_: One of the [supported databases](#supported-databases)

 **On your local machine:**
 * [WakaTime plugin](https://wakatime.com/plugins) for your editor / IDE

-## Server Setup
+## ⌨️ Server Setup
 ### Run from source
-1. Clone the project
-1. Copy `.env.example` to `.env` and set database credentials
-1. Adapt `config.ini` to your needs
-1. Build executable: `GO111MODULE=on go build`
+1. Copy `config.default.yml` to `config.yml` and adapt it to your needs
+1. Install packaging tool: `GO111MODULE=on go get github.com/markbates/pkger/cmd/pkger`
+1. Build executable: `GO111MODULE=on go generate && go build -o wakapi`
 1. Run server: `./wakapi`

 **As an alternative** to building from source you can also grab a pre-built [release](https://github.com/muety/wakapi/releases). Steps 2, 3 and 5 apply analogously.

-**Note:** By default, the application is running in dev mode. However, it is recommended to set `ENV=production` in `.env` for enhanced performance and security. To still be able to log in when using production mode, you either have to run Wakapi behind a reverse proxy, that enables for HTTPS encryption (see [best practices](i#best-practices)) or set `insecure_cookies = true` in `config.ini`. 
+**Note:** By default, the application is running in dev mode. However, it is recommended to set `ENV=production` for enhanced performance and security. To still be able to log in when using production mode, you either have to run Wakapi behind a reverse proxy, that enables for HTTPS encryption (see [best practices](#best-practices)) or set `security.insecure_cookies` to `true` in `config.yml`. 

 ### Run with Docker
-```
-docker run -d -p 3000:3000 --name wakapi n1try/wakapi
+```bash
+docker run -d -p 3000:3000 -e "WAKAPI_PASSWORD_SALT=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w ${1:-32} | head -n 1)" --name wakapi n1try/wakapi
 ```

-By default, SQLite is used as a database. To run Wakapi in Docker with MySQL or Postgres, see [Dockerfile](https://github.com/muety/wakapi/blob/master/Dockerfile) and [.env.example](https://github.com/muety/wakapi/blob/master/.env.example) for further options.
+By default, SQLite is used as a database. To run Wakapi in Docker with MySQL or Postgres, see [Dockerfile](https://github.com/muety/wakapi/blob/master/Dockerfile) and [config.default.yml](https://github.com/muety/wakapi/blob/master/config.default.yml) for further options.

-## Client Setup
+### Running tests
+```bash
+CGO_FLAGS="-g -O2 -Wno-return-local-addr" go test -json -coverprofile=coverage/coverage.out ./... -run ./...
+```
+
+## 🔧 Configuration
+You can specify configuration options either via a config file (default: `config.yml`, customziable through the `-c` argument) or via environment variables. Here is an overview of all options.
+
+| YAML Key                  | Environment Variable      | Default      | Description                                                         |
+|---------------------------|---------------------------|--------------|---------------------------------------------------------------------|
+| `env`                       | `ENVIRONMENT`               | `dev`          | Whether to use development- or production settings                  |
+| `app.custom_languages`      | -                           | -              | Map from file endings to language names                             |
+| `server.port`               | `WAKAPI_PORT`               | `3000`         | Port to listen on                                                   |
+| `server.listen_ipv4`        | `WAKAPI_LISTEN_IPV4`        | `127.0.0.1`    | IPv4 network address to listen on (leave blank to disable IPv4)     |
+| `server.listen_ipv6`        | `WAKAPI_LISTEN_IPV6`        | `::1`          | IPv6 network address to listen on (leave blank to disable IPv6)     |
+| `server.tls_cert_path`      | `WAKAPI_TLS_CERT_PATH`      | -              | Path of SSL server certificate (leave blank to not use HTTPS)       |
+| `server.tls_key_path`       | `WAKAPI_TLS_KEY_PATH`       | -              | Path of SSL server private key (leave blank to not use HTTPS)       |
+| `server.base_path`          | `WAKAPI_BASE_PATH`          | `/`            | Web base path (change when running behind a proxy under a sub-path) |
+| `security.password_salt`    | `WAKAPI_PASSWORD_SALT`      | -              | Pepper to use for password hashing                                  |
+| `security.insecure_cookies` | `WAKAPI_INSECURE_COOKIES`   | `false`        | Whether or not to allow cookies over HTTP                           |
+| `security.cookie_max_age`   | `WAKAPI_COOKIE_MAX_AGE  `   | `172800`       | Lifetime of authentication cookies in seconds or `0` to use [Session](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#Define_the_lifetime_of_a_cookie) cookies |
+| `db.host`                   | `WAKAPI_DB_HOST`            | -              | Database host                                                       |
+| `db.port`                   | `WAKAPI_DB_PORT`            | -              | Database port                                                       |
+| `db.user`                   | `WAKAPI_DB_USER`            | -              | Database user                                                       |
+| `db.password`               | `WAKAPI_DB_PASSWORD`        | -              | Database password                                                   |
+| `db.name`                   | `WAKAPI_DB_NAME`            | `wakapi_db.db` | Database name                                                       |
+| `db.dialect`                | `WAKAPI_DB_TYPE`            | `sqlite3`      | Database type (one of `sqlite3`, `mysql`, `postgres`, `cockroach`)                     |
+| `db.max_conn`               | `WAKAPI_DB_MAX_CONNECTIONS` | `2`            | Maximum number of database connections                              |
+| `db.ssl`                    | `WAKAPI_DB_SSL`             | `false`        | Whether to use TLS encryption for database connection (Postgres and CockroachDB only) |
+
+### Supported databases
+Wakapi uses [GORM](https://gorm.io) as an ORM. As a consequence, a set of different relational databases is supported.
+* [SQLite](https://sqlite.org/) (_default, easy setup_)
+* [MySQL](https://hub.docker.com/_/mysql) (_recommended, because most extensively tested_)
+* [MariaDB](https://hub.docker.com/_/mariadb) (_open-source MySQL alternative_)
+* [Postgres](https://hub.docker.com/_/postgres) (_open-source as well_)
+* [CockroachDB](https://www.cockroachlabs.com/docs/stable/install-cockroachdb-linux.html) (_cloud-native, distributed, Postgres-compatible API_)
+
+## 💻 Client Setup
 Wakapi relies on the open-source [WakaTime](https://github.com/wakatime/wakatime) client tools. In order to collect statistics to Wakapi, you need to set them up.

 1. **Set up WakaTime** for your specific IDE or editor. Please refer to the respective [plugin guide](https://wakatime.com/plugins)
@ -62,35 +110,23 @@ api_key = the_api_key_printed_to_the_console_after_starting_the_server`

 You can view your API Key after logging in to the web interface.

-## Customization
+### Optional: Client-side proxy
+See the [advanced setup instructions](docs/advanced_setup.md).

-### Aliases
-There is an option to add aliases for project names, editors, operating systems and languages. For instance, if you want to map two projects – `myapp-frontend` and `myapp-backend` – two a common project name – `myapp-web` – in your statistics, you can add project aliases.
+### Optional: WakaTime relay
+You can connect Wakapi with WakaTime in a way that all heartbeats sent to Wakapi are relayed. This way, you can use both services at the same time. Go to the settings page of your instance to configure this integration. 

-At the moment, this can only be done via raw database queries. For the above example, you would need to add two aliases, like this:
-
-```sql
-INSERT INTO aliases (`type`, `user_id`, `key`, `value`) VALUES (0, 'your_username', 'myapp-web', 'myapp-frontend');
-```
-
-#### Types
-* Project ~  type **0**
-* Language ~  type **1**
-* Editor ~ type **2**
-* OS ~  type **3**
-* Machine ~  type **4**
-
-## API Endpoints
+## 🔧 API Endpoints
 The following API endpoints are available. A more detailed Swagger documentation is about to come ([#40](https://github.com/muety/wakapi/issues/40)).

 * `POST /api/heartbeat`
 * `GET /api/summary`
  * `string` parameter `interval`: One of `today`, `day`, `week`, `month`, `year`, `any`
-* `GET /api/compat/v1/users/current/all_time_since_today` (see [Wakatime API docs](https://wakatime.com/developers#all_time_since_today))
-* `GET /api/compat/v1/users/current/summaries` (see [Wakatime API docs](https://wakatime.com/developers#summaries))
+* `GET /api/compat/wakatime/v1/users/current/all_time_since_today` (see [Wakatime API docs](https://wakatime.com/developers#all_time_since_today))
+* `GET /api/compat/wakatime/v1/users/current/summaries` (see [Wakatime API docs](https://wakatime.com/developers#summaries))
 * `GET /api/health`

-## Prometheus Export
+## ⤴️ Prometheus Export
 If you want to export your Wakapi statistics to Prometheus to view them in a Grafana dashboard or so please refer to an excellent tool called **[wakatime_exporter](https://github.com/MacroPower/wakatime_exporter)**.

 [![](https://github-readme-stats.vercel.app/api/pin/?username=MacroPower&repo=wakatime_exporter&show_owner=true)](https://github.com/MacroPower/wakatime_exporter)
@ -99,15 +135,18 @@ It is a standalone webserver that connects to your Wakapi instance and exposes t

 Simply configure the exporter with `WAKA_SCRAPE_URI` to equal `"https://wakapi.your-server.com/api/compat/wakatime/v1"` and set your API key accordingly.

-## Badges
+## 🏷 Badges
+We recently introduced support for [Shields.io](https://shields.io) badges (see above). Visit your Wakapi server's settings page to see details.

-
-## Best Practices
+## 👍 Best Practices
 It is recommended to use wakapi behind a **reverse proxy**, like [Caddy](https://caddyserver.com) or _nginx_ to enable **TLS encryption** (HTTPS).
-However, if you want to expose your wakapi instance to the public anyway, you need to set `listen = 0.0.0.0` in `config.ini`
+However, if you want to expose your wakapi instance to the public anyway, you need to set `server.listen_ipv4` to `0.0.0.0` in `config.yml`

-## Important Note
+## 🙏 Support
+If you like this project, please consider supporting it 🙂. You can donate either through [buying me a coffee](https://buymeacoff.ee/n1try) or becoming a GitHub sponsor. Every little donation is highly appreciated and boosts the developers' motivation to keep improving Wakapi!
+
+## ⚠️ Important Note
 **This is not an alternative to using WakaTime.** It is just a custom, non-commercial, self-hosted application to collect coding statistics using the already existing editor plugins provided by the WakaTime community. It was created for personal use only and with the purpose of keeping the sovereignity of your own data. However, if you like the official product, **please support the authors and buy an official WakaTime subscription!**

-## License
+## 📓 License
 GPL-v3 @ [Ferdinand Mütsch](https://muetsch.io)
--- a/config.default.yml
+++ b/config.default.yml
@ -0,0 +1,31 @@
+env: development
+
+server:
+  listen_ipv4: 127.0.0.1    # leave blank to disable ipv4
+  listen_ipv6: ::1          # leave blank to disable ipv6
+  tls_cert_path:            # leave blank to not use https
+  tls_key_path:             # leave blank to not use https
+  port: 3000
+  base_path: /
+
+app:
+  aggregation_time: '02:15' # time at which to run daily aggregation batch jobs
+  counting_time: '05:15'    # time at which to run daily job to count total hours tracked in the system
+  custom_languages:
+    vue: Vue
+    jsx: JSX
+
+db:
+  host:                     # leave blank when using sqlite3
+  port:                     # leave blank when using sqlite3
+  user:                     # leave blank when using sqlite3
+  password:                 # leave blank when using sqlite3
+  name: wakapi_db.db        # database name for mysql / postgres or file path for sqlite (e.g. /tmp/wakapi.db)
+  dialect: sqlite3          # mysql, postgres, sqlite3
+  max_conn: 2               # maximum number of concurrent connections to maintain
+  ssl: false                # whether to use tls for db connection (must be true for cockroachdb) (ignored for mysql and sqlite)
+
+security:
+  password_salt:            # CHANGE !
+  insecure_cookies: false
+  cookie_max_age: 172800
--- a/config.ini
+++ b/config.ini
@ -1,15 +0,0 @@
-[server]
-listen = 127.0.0.1
-port = 3000
-base_path = /
-insecure_cookies = false
-
-[app]
-cleanup = false
-
-[database]
-max_connections = 2
-
-[languages]
-vue = Vue
-jsx = JSX
--- a/config/config.go
+++ b/config/config.go
@ -0,0 +1,310 @@
+package config
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"github.com/gorilla/securecookie"
+	"github.com/jinzhu/configor"
+	"github.com/markbates/pkger"
+	"github.com/muety/wakapi/models"
+	migrate "github.com/rubenv/sql-migrate"
+	"gorm.io/driver/mysql"
+	"gorm.io/driver/postgres"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+)
+
+const (
+	defaultConfigPath          = "config.yml"
+	defaultConfigPathLegacy    = "config.ini"
+	defaultEnvConfigPathLegacy = ".env"
+
+	SQLDialectMysql    = "mysql"
+	SQLDialectPostgres = "postgres"
+	SQLDialectSqlite   = "sqlite3"
+
+	KeyLatestTotalTime  = "latest_total_time"
+	KeyLatestTotalUsers = "latest_total_users"
+)
+
+var cfg *Config
+var cFlag = flag.String("config", defaultConfigPath, "config file location")
+
+type appConfig struct {
+	AggregationTime string            `yaml:"aggregation_time" default:"02:15" env:"WAKAPI_AGGREGATION_TIME"`
+	CountingTime    string            `yaml:"counting_time" default:"05:15" env:"WAKAPI_COUNTING_TIME"`
+	CustomLanguages map[string]string `yaml:"custom_languages"`
+	LanguageColors  map[string]string `yaml:"-"`
+}
+
+type securityConfig struct {
+	// this is actually a pepper (https://en.wikipedia.org/wiki/Pepper_(cryptography))
+	PasswordSalt    string                     `yaml:"password_salt" default:"" env:"WAKAPI_PASSWORD_SALT"`
+	InsecureCookies bool                       `yaml:"insecure_cookies" default:"false" env:"WAKAPI_INSECURE_COOKIES"`
+	CookieMaxAgeSec int                        `yaml:"cookie_max_age" default:"172800" env:"WAKAPI_COOKIE_MAX_AGE"`
+	SecureCookie    *securecookie.SecureCookie `yaml:"-"`
+}
+
+type dbConfig struct {
+	Host     string `env:"WAKAPI_DB_HOST"`
+	Port     uint   `env:"WAKAPI_DB_PORT"`
+	User     string `env:"WAKAPI_DB_USER"`
+	Password string `env:"WAKAPI_DB_PASSWORD"`
+	Name     string `default:"wakapi_db.db" env:"WAKAPI_DB_NAME"`
+	Dialect  string `yaml:"-"`
+	Type     string `yaml:"dialect" default:"sqlite3" env:"WAKAPI_DB_TYPE"`
+	MaxConn  uint   `yaml:"max_conn" default:"2" env:"WAKAPI_DB_MAX_CONNECTIONS"`
+	Ssl      bool   `default:"false" env:"WAKAPI_DB_SSL"`
+}
+
+type serverConfig struct {
+	Port        int    `default:"3000" env:"WAKAPI_PORT"`
+	ListenIpV4  string `yaml:"listen_ipv4" default:"127.0.0.1" env:"WAKAPI_LISTEN_IPV4"`
+	ListenIpV6  string `yaml:"listen_ipv6" default:"::1" env:"WAKAPI_LISTEN_IPV6"`
+	BasePath    string `yaml:"base_path" default:"/" env:"WAKAPI_BASE_PATH"`
+	TlsCertPath string `yaml:"tls_cert_path" default:"" env:"WAKAPI_TLS_CERT_PATH"`
+	TlsKeyPath  string `yaml:"tls_key_path" default:"" env:"WAKAPI_TLS_KEY_PATH"`
+}
+
+type Config struct {
+	Env      string `default:"dev" env:"ENVIRONMENT"`
+	Version  string `yaml:"-"`
+	App      appConfig
+	Security securityConfig
+	Db       dbConfig
+	Server   serverConfig
+}
+
+func (c *Config) CreateCookie(name, value, path string) *http.Cookie {
+	return c.createCookie(name, value, path, c.Security.CookieMaxAgeSec)
+}
+
+func (c *Config) GetClearCookie(name, path string) *http.Cookie {
+	return c.createCookie(name, "", path, -1)
+}
+
+func (c *Config) createCookie(name, value, path string, maxAge int) *http.Cookie {
+	return &http.Cookie{
+		Name:     name,
+		Value:    value,
+		Path:     path,
+		MaxAge:   maxAge,
+		Secure:   !c.Security.InsecureCookies,
+		HttpOnly: true,
+		SameSite: http.SameSiteStrictMode,
+	}
+}
+
+func (c *Config) IsDev() bool {
+	return IsDev(c.Env)
+}
+
+func (c *Config) UseTLS() bool {
+	return c.Server.TlsCertPath != "" && c.Server.TlsKeyPath != ""
+}
+
+func (c *Config) GetMigrationFunc(dbDialect string) models.MigrationFunc {
+	switch dbDialect {
+	default:
+		return func(db *gorm.DB) error {
+			db.AutoMigrate(&models.User{})
+			db.AutoMigrate(&models.KeyStringValue{})
+			db.AutoMigrate(&models.Alias{})
+			db.AutoMigrate(&models.Heartbeat{})
+			db.AutoMigrate(&models.Summary{})
+			db.AutoMigrate(&models.SummaryItem{})
+			db.AutoMigrate(&models.LanguageMapping{})
+			return nil
+		}
+	}
+}
+
+func (c *Config) GetFixturesFunc(dbDialect string) models.MigrationFunc {
+	return func(db *gorm.DB) error {
+		migrations := &migrate.HttpFileSystemMigrationSource {
+			FileSystem: pkger.Dir("/migrations"),
+		}
+
+		migrate.SetIgnoreUnknown(true)
+		sqlDb, _ := db.DB()
+		n, err := migrate.Exec(sqlDb, dbDialect, migrations, migrate.Up)
+		if err != nil {
+			return err
+		}
+
+		log.Printf("applied %d fixtures\n", n)
+		return nil
+	}
+}
+
+func (c *dbConfig) GetDialector() gorm.Dialector {
+	switch c.Dialect {
+	case SQLDialectMysql:
+		return mysql.New(mysql.Config{
+			DriverName: c.Dialect,
+			DSN:        mysqlConnectionString(c),
+		})
+	case SQLDialectPostgres:
+		return postgres.New(postgres.Config{
+			DSN: postgresConnectionString(c),
+		})
+	case SQLDialectSqlite:
+		return sqlite.Open(sqliteConnectionString(c))
+	}
+	return nil
+}
+
+func mysqlConnectionString(config *dbConfig) string {
+	//location, _ := time.LoadLocation("Local")
+	return fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8&parseTime=true&loc=%s&sql_mode=ANSI_QUOTES",
+		config.User,
+		config.Password,
+		config.Host,
+		config.Port,
+		config.Name,
+		"Local",
+	)
+}
+
+func postgresConnectionString(config *dbConfig) string {
+	sslmode := "disable"
+	if config.Ssl {
+		sslmode = "require"
+	}
+
+	return fmt.Sprintf("host=%s port=%d user=%s dbname=%s password=%s sslmode=%s",
+		config.Host,
+		config.Port,
+		config.User,
+		config.Name,
+		config.Password,
+		sslmode,
+	)
+}
+
+func sqliteConnectionString(config *dbConfig) string {
+	return config.Name
+}
+
+func (c *appConfig) GetCustomLanguages() map[string]string {
+	return cloneStringMap(c.CustomLanguages)
+}
+
+func (c *appConfig) GetLanguageColors() map[string]string {
+	return cloneStringMap(c.LanguageColors)
+}
+
+func IsDev(env string) bool {
+	return env == "dev" || env == "development"
+}
+
+func readVersion() string {
+	file, err := pkger.Open("/version.txt")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer file.Close()
+
+	bytes, err := ioutil.ReadAll(file)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return strings.TrimSpace(string(bytes))
+}
+
+func readLanguageColors() map[string]string {
+	// Read language colors
+	// Source: https://raw.githubusercontent.com/ozh/github-colors/master/colors.json
+	var colors = make(map[string]string)
+	var rawColors map[string]struct {
+		Color string `json:"color"`
+		Url   string `json:"url"`
+	}
+
+	file, err := pkger.Open("/data/colors.json")
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer file.Close()
+	bytes, err := ioutil.ReadAll(file)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	if err := json.Unmarshal(bytes, &rawColors); err != nil {
+		log.Fatal(err)
+	}
+
+	for k, v := range rawColors {
+		colors[strings.ToLower(k)] = v.Color
+	}
+
+	return colors
+}
+
+func mustReadConfigLocation() string {
+	if _, err := os.Stat(*cFlag); err != nil {
+		log.Fatalf("failed to find config file at '%s'\n", *cFlag)
+	}
+
+	return *cFlag
+}
+
+func resolveDbDialect(dbType string) string {
+	if dbType == "cockroach" {
+		return "postgres"
+	}
+	return dbType
+}
+
+func Set(config *Config) {
+	cfg = config
+}
+
+func Get() *Config {
+	return cfg
+}
+
+func Load() *Config {
+	config := &Config{}
+
+	flag.Parse()
+
+	maybeMigrateLegacyConfig()
+
+	if err := configor.New(&configor.Config{}).Load(config, mustReadConfigLocation()); err != nil {
+		log.Fatalf("failed to read config: %v\n", err)
+	}
+
+	config.Version = readVersion()
+	config.App.LanguageColors = readLanguageColors()
+	config.Db.Dialect = resolveDbDialect(config.Db.Type)
+	config.Security.SecureCookie = securecookie.New(
+		securecookie.GenerateRandomKey(64),
+		securecookie.GenerateRandomKey(32),
+	)
+
+	if strings.HasSuffix(config.Server.BasePath, "/") {
+		config.Server.BasePath = config.Server.BasePath[:len(config.Server.BasePath)-1]
+	}
+
+	for k, v := range config.App.CustomLanguages {
+		if v == "" {
+			config.App.CustomLanguages[k] = "unknown"
+		}
+	}
+
+	if config.Server.ListenIpV4 == "" && config.Server.ListenIpV6 == "" {
+		log.Fatalln("either of listen_ipv4 or listen_ipv6 must be set")
+	}
+
+	Set(config)
+	return Get()
+}
--- a/config/config_test.go
+++ b/config/config_test.go
@ -0,0 +1,66 @@
+package config
+
+import (
+	"fmt"
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestConfig_IsDev(t *testing.T) {
+	assert.True(t, IsDev("dev"))
+	assert.True(t, IsDev("development"))
+	assert.False(t, IsDev("prod"))
+	assert.False(t, IsDev("production"))
+	assert.False(t, IsDev("anything else"))
+}
+
+func Test_mysqlConnectionString(t *testing.T) {
+	c := &dbConfig{
+		Host:     "test_host",
+		Port:     9999,
+		User:     "test_user",
+		Password: "test_password",
+		Name:     "test_name",
+		Dialect:  "mysql",
+		MaxConn:  10,
+	}
+
+	assert.Equal(t, fmt.Sprintf(
+		"%s:%s@tcp(%s:%d)/%s?charset=utf8&parseTime=true&loc=%s&sql_mode=ANSI_QUOTES",
+		c.User,
+		c.Password,
+		c.Host,
+		c.Port,
+		c.Name,
+		"Local",
+	), mysqlConnectionString(c))
+}
+
+func Test_postgresConnectionString(t *testing.T) {
+	c := &dbConfig{
+		Host:     "test_host",
+		Port:     9999,
+		User:     "test_user",
+		Password: "test_password",
+		Name:     "test_name",
+		Dialect:  "postgres",
+		MaxConn:  10,
+	}
+
+	assert.Equal(t, fmt.Sprintf(
+		"host=%s port=%d user=%s dbname=%s password=%s sslmode=disable",
+		c.Host,
+		c.Port,
+		c.User,
+		c.Name,
+		c.Password,
+	), postgresConnectionString(c))
+}
+
+func Test_sqliteConnectionString(t *testing.T) {
+	c := &dbConfig{
+		Name:    "test_name",
+		Dialect: "sqlite3",
+	}
+	assert.Equal(t, c.Name, sqliteConnectionString(c))
+}
--- a/config/legacy.go
+++ b/config/legacy.go
@ -0,0 +1,124 @@
+package config
+
+import (
+	"github.com/joho/godotenv"
+	"gopkg.in/ini.v1"
+	"gopkg.in/yaml.v2"
+	"io/ioutil"
+	"log"
+	"os"
+	"strconv"
+)
+
+func maybeMigrateLegacyConfig() {
+	if yes, err := shouldMigrateLegacyConfig(); err != nil {
+		log.Fatalf("failed to determine whether to migrate legacy config: %v\n", err)
+	} else if yes {
+		log.Printf("migrating legacy config (%s, %s) to new format (%s); see https://github.com/muety/wakapi/issues/54\n", defaultConfigPathLegacy, defaultEnvConfigPathLegacy, defaultConfigPath)
+		if err := migrateLegacyConfig(); err != nil {
+			log.Fatalf("failed to migrate legacy config: %v\n", err)
+		}
+		log.Printf("config migration successful; please delete %s and %s now\n", defaultConfigPathLegacy, defaultEnvConfigPathLegacy)
+	}
+}
+
+func shouldMigrateLegacyConfig() (bool, error) {
+	if _, err := os.Stat(defaultConfigPath); err == nil {
+		return false, nil
+	} else if !os.IsNotExist(err) {
+		return true, err
+	}
+	return true, nil
+}
+
+func migrateLegacyConfig() error {
+	// step 1: read envVars file parameters
+	envFile, err := os.Open(defaultEnvConfigPathLegacy)
+	if err != nil {
+		return err
+	}
+	envVars, err := godotenv.Parse(envFile)
+	if err != nil {
+		return err
+	}
+
+	env := envVars["ENV"]
+	dbType := envVars["WAKAPI_DB_TYPE"]
+	dbUser := envVars["WAKAPI_DB_USER"]
+	dbPassword := envVars["WAKAPI_DB_PASSWORD"]
+	dbHost := envVars["WAKAPI_DB_HOST"]
+	dbName := envVars["WAKAPI_DB_NAME"]
+	dbPortStr := envVars["WAKAPI_DB_PORT"]
+	passwordSalt := envVars["WAKAPI_PASSWORD_SALT"]
+	dbPort, _ := strconv.Atoi(dbPortStr)
+
+	// step 2: read ini file
+	cfg, err := ini.Load(defaultConfigPathLegacy)
+	if err != nil {
+		return err
+	}
+
+	if dbType == "" {
+		dbType = SQLDialectSqlite
+	}
+
+	dbMaxConn := cfg.Section("database").Key("max_connections").MustUint(2)
+	addr := cfg.Section("server").Key("listen").MustString("127.0.0.1")
+	insecureCookies := cfg.Section("server").Key("insecure_cookies").MustBool(false)
+	port, err := strconv.Atoi(os.Getenv("PORT"))
+	if err != nil {
+		port = cfg.Section("server").Key("port").MustInt()
+	}
+
+	basePathEnv, basePathEnvExists := os.LookupEnv("WAKAPI_BASE_PATH")
+	basePath := cfg.Section("server").Key("base_path").MustString("/")
+	if basePathEnvExists {
+		basePath = basePathEnv
+	}
+
+	// Read custom languages
+	customLangs := make(map[string]string)
+	languageKeys := cfg.Section("languages").Keys()
+	for _, k := range languageKeys {
+		customLangs[k.Name()] = k.MustString("unknown")
+	}
+
+	// step 3: instantiate config
+	config := &Config{
+		Env: env,
+		App: appConfig{
+			CustomLanguages: customLangs,
+		},
+		Security: securityConfig{
+			PasswordSalt:    passwordSalt,
+			InsecureCookies: insecureCookies,
+		},
+		Db: dbConfig{
+			Host:     dbHost,
+			Port:     uint(dbPort),
+			User:     dbUser,
+			Password: dbPassword,
+			Name:     dbName,
+			Dialect:  dbType,
+			MaxConn:  dbMaxConn,
+		},
+		Server: serverConfig{
+			Port:       port,
+			ListenIpV4: addr,
+			BasePath:   basePath,
+		},
+	}
+
+	// step 4: serialize to yaml
+	yamlConfig, err := yaml.Marshal(config)
+	if err != nil {
+		return err
+	}
+
+	// step 5: write file
+	if err := ioutil.WriteFile(defaultConfigPath, yamlConfig, 0600); err != nil {
+		return err
+	}
+
+	return nil
+}
--- a/config/templates.go
+++ b/config/templates.go
@ -0,0 +1,10 @@
+package config
+
+const (
+	IndexTemplate    = "index.tpl.html"
+	LoginTemplate    = "login.tpl.html"
+	ImprintTemplate  = "imprint.tpl.html"
+	SignupTemplate   = "signup.tpl.html"
+	SettingsTemplate = "settings.tpl.html"
+	SummaryTemplate  = "summary.tpl.html"
+)
--- a/config/utils.go
+++ b/config/utils.go
@ -0,0 +1,9 @@
+package config
+
+func cloneStringMap(m map[string]string) map[string]string {
+	m2 := make(map[string]string)
+	for k, v := range m {
+		m2[k] = v
+	}
+	return m2
+}
--- a/coverage/coverage.out
+++ b/coverage/coverage.out
@ -0,0 +1,579 @@
+mode: set
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--- a/docker-compose.yml
+++ b/docker-compose.yml
@ -0,0 +1,23 @@
+version: '3.7'
+
+services:
+  wakapi:
+    build: .
+    ports:
+      - 3000:3000
+    restart: always
+    environment:
+      WAKAPI_DB_TYPE: "postgres"
+      WAKAPI_DB_NAME: "wakapi"
+      WAKAPI_DB_USER: "wakapi"
+      WAKAPI_DB_PASSWORD: "CHANGE_ME!!!"
+      WAKAPI_DB_HOST: "db"
+      WAKAPI_DB_PORT: "5432"
+      ENVIRONMENT: "prod"
+
+  db:
+    image: postgres:12.3
+    environment:
+      POSTGRES_USER: "wakapi"
+      POSTGRES_PASSWORD: "CHANGE_ME!!!"
+      POSTGRES_DB: "wakapi"
--- a/docs/advanced_setup.md
+++ b/docs/advanced_setup.md
@ -0,0 +1,29 @@
+# Advanced Setup
+## Optional: Client-side proxy
+Most Wakatime plugins work in a way that, for every heartbeat to send, the plugin calls your local [wakatime-cli](https://github.com/wakatime/wakatime) (a small Python program that is automatically installed when installing a Wakatime plugin) with a few command-line arguments, which is then run as a new process. Inside that process, a heartbeat request is forged and sent to the backend API – Wakapi in this case.
+
+While this is convenient for plugin developers, as they do not have to deal with sending HTTP requests, etc., it comes with a minor drawback. Because the CLI process shuts down after each request, its TCP connection is closed as well. Accordingly, **TCP connections cannot be re-used** and every single heartbeat request is inevitably preceded by the `SYN` + `SYN ACK` + `ACK` sequence for establishing a new TCP connection as well as a handshake for establishing a new TLS session.
+
+While this certainly does not hurt, it is still a bit of overhead. You can avoid that by setting up a local reverse proxy on your machine, that keeps running as a daemon and can therefore keep a continuous connection.
+
+In this example, [Caddy](https://caddyserver.com) is used as an easy-to-set-up webserver / reverse proxy.
+
+1. [Install Caddy](https://caddyserver.com/)
+    * When installing manually, don't forget to set up a systemd service to start Caddy on system startup
+1. Create a Caddyfile
+    ```
+    # /etc/caddy/Caddyfile
+   
+    http://localhost:8070 {
+        reverse_proxy * {
+            to https://wakapi.dev  # <-- substitute your own Wakapi host here
+            header_up Host {http.reverse_proxy.upstream.host}
+            header_down -Server
+        }
+    }
+    ```
+1. Restart Caddy
+1. Verify that you can access [`http://localhost:8070/api/health`](http://localhost:8070/api/health)
+1. Update `~/.wakatime.cfg`
+    * Set `api_url = http://localhost:8070/api/heartbeat`
+1. Done
--- a/go.mod
+++ b/go.mod
@ -3,18 +3,28 @@ module github.com/muety/wakapi
 go 1.13

 require (
+	github.com/go-co-op/gocron v0.3.3
 	github.com/gorilla/handlers v1.4.2
 	github.com/gorilla/mux v1.7.3
 	github.com/gorilla/schema v1.1.0
 	github.com/gorilla/securecookie v1.1.1
-	github.com/jasonlvhit/gocron v0.0.0-20191106203602-f82992d443f4
-	github.com/jinzhu/gorm v1.9.11
+	github.com/jinzhu/configor v1.2.0
 	github.com/joho/godotenv v1.3.0
-	github.com/kr/pretty v0.2.0 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/markbates/pkger v0.17.1
+	github.com/mattn/go-sqlite3 v2.0.3+incompatible // indirect
+	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/rubenv/sql-migrate v0.0.0-20200402132117-435005d389bc
 	github.com/satori/go.uuid v1.2.0
-	github.com/t-tiger/gorm-bulk-insert v1.3.0
-	golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c
+	github.com/stretchr/testify v1.6.1
+	go.uber.org/atomic v1.6.0
+	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
+	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 	gopkg.in/ini.v1 v1.50.0
+	gopkg.in/yaml.v2 v2.2.8
+	gorm.io/driver/mysql v1.0.3
+	gorm.io/driver/postgres v1.0.5
+	gorm.io/driver/sqlite v1.1.3
+	gorm.io/gorm v1.20.11
 )
--- a/go.sum
+++ b/go.sum
@ -1,6 +1,6 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.37.4/go.mod h1:NHPJ89PdicEuT9hdPXMROBD91xc5uRDxsMtSB16k7hw=
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@ -31,21 +31,24 @@ github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA
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@ -56,13 +59,13 @@ github.com/edsrzf/mmap-go v1.0.0/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaB
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@ -71,12 +74,15 @@ github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V
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@ -84,17 +90,17 @@ github.com/gobuffalo/packd v0.3.0/go.mod h1:zC7QkmNkYVGKPw4tHpBQ+ml7W/3tIebgeo1b
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@ -106,11 +112,8 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
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@ -152,14 +155,64 @@ github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpO
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+github.com/shopspring/decimal v0.0.0-20200227202807-02e2044944cc/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
+github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
 github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
@ -312,20 +385,21 @@ github.com/streadway/amqp v0.0.0-20190827072141-edfb9018d271/go.mod h1:AZpEONHx3
 github.com/streadway/handy v0.0.0-20190108123426-d5acb3125c2a/go.mod h1:qNTQ5P5JnDBl6z3cMAg/SywNDC5ABu5ApDIw6lUbRmI=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.2.0 h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=
+github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/t-tiger/gorm-bulk-insert v0.0.0-20191014134946-beb77b81825f h1:Op5lFYUNE7tPxu6gJfwkgY8HMIWpLqiLApBJfGs71U8=
-github.com/t-tiger/gorm-bulk-insert v0.0.0-20191014134946-beb77b81825f/go.mod h1:SK1RZT4TR1aMUNGtbk6YxTPgx2D/gfbxB571QGnAV+c=
-github.com/t-tiger/gorm-bulk-insert v1.3.0 h1:9k7BaVEhw/3fsvh6GTOBwJ2RXk3asc5xs5m6hwozq20=
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 github.com/tmc/grpc-websocket-proxy v0.0.0-20170815181823-89b8d40f7ca8/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
 github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
+github.com/zenazn/goji v0.9.0/go.mod h1:7S9M489iMyHBNxwZnk9/EHS098H4/F6TATF2mIxtB1Q=
 github.com/ziutek/mymysql v1.5.4 h1:GB0qdRGsTwQSBVYuVShFBKaXSnSnYYC2d9knnE1LHFs=
 github.com/ziutek/mymysql v1.5.4/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
@ -334,10 +408,15 @@ go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.20.2/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
+go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
+go.uber.org/atomic v1.6.0 h1:Ezj3JGmsOnG1MoRWQkPBsKLe9DwWD9QeXzTRzzldNVk=
+go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
+go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
+go.uber.org/zap v1.9.1/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@ -345,17 +424,22 @@ golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnf
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190621222207-cc06ce4a13d4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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-golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
@ -375,6 +459,7 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -394,19 +479,24 @@ golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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+golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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+golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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 golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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@ -416,24 +506,28 @@ golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
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+golang.org/x/tools v0.0.0-20190425163242-31fd60d6bfdc/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
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 golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
+golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191004055002-72853e10c5a3/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200103221440-774c71fcf114 h1:DnSr2mCsxyCE6ZgIkmcWUQY2R5cH/6wL7eIxEmQOMSE=
 golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/appengine v1.6.5 h1:tycE03LOZYQNhDpS27tcQdAzLCVMaj7QT2SXxebnpCM=
 google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
-google.golang.org/genproto v0.0.0-20190404172233-64821d5d2107/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
 google.golang.org/genproto v0.0.0-20190530194941-fb225487d101/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
@ -448,14 +542,16 @@ google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyac
 google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
 gopkg.in/gorp.v1 v1.7.2 h1:j3DWlAyGVv8whO7AcIWznQ2Yj7yJkn34B8s63GViAAw=
 gopkg.in/gorp.v1 v1.7.2/go.mod h1:Wo3h+DBQZIxATwftsglhdD/62zRFPhGhTiu5jUJmCaw=
+gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
 gopkg.in/ini.v1 v1.50.0 h1:c/4YI/GUgB7d2yOkxdsQyYDhW67nWrTl6Zyd9vagYmg=
 gopkg.in/ini.v1 v1.50.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
@ -464,11 +560,24 @@ gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRN
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gorm.io/driver/mysql v1.0.3 h1:+JKBYPfn1tygR1/of/Fh2T8iwuVwzt+PEJmKaXzMQXg=
+gorm.io/driver/mysql v1.0.3/go.mod h1:twGxftLBlFgNVNakL7F+P/x9oYqoymG3YYT8cAfI9oI=
+gorm.io/driver/postgres v1.0.5 h1:raX6ezL/ciUmaYTvOq48jq1GE95aMC0CmxQYbxQ4Ufw=
+gorm.io/driver/postgres v1.0.5/go.mod h1:qrD92UurYzNctBMVCJ8C3VQEjffEuphycXtxOudXNCA=
+gorm.io/driver/sqlite v1.1.3 h1:BYfdVuZB5He/u9dt4qDpZqiqDJ6KhPqs5QUqsr/Eeuc=
+gorm.io/driver/sqlite v1.1.3/go.mod h1:AKDgRWk8lcSQSw+9kxCJnX/yySj8G3rdwYlU57cB45c=
+gorm.io/gorm v1.20.1/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
+gorm.io/gorm v1.20.4/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
+gorm.io/gorm v1.20.11 h1:jYHQ0LLUViV85V8dM1TP9VBBkfzKTnuTXDjYObkI6yc=
+gorm.io/gorm v1.20.11/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
--- a/main.go
+++ b/main.go
@ -1,101 +1,125 @@
 package main

+//go:generate $GOPATH/bin/pkger
+
 import (
+	"fmt"
 	"github.com/gorilla/handlers"
+	"github.com/markbates/pkger"
+	conf "github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/migrations/common"
+	"github.com/muety/wakapi/repositories"
 	"log"
 	"net/http"
 	"strconv"
 	"time"

 	"github.com/gorilla/mux"
-	"github.com/jinzhu/gorm"
-	_ "github.com/jinzhu/gorm/dialects/mysql"
-	_ "github.com/jinzhu/gorm/dialects/postgres"
-	_ "github.com/jinzhu/gorm/dialects/sqlite"
 	"github.com/muety/wakapi/middlewares"
-	"github.com/muety/wakapi/models"
+	customMiddleware "github.com/muety/wakapi/middlewares/custom"
 	"github.com/muety/wakapi/routes"
 	shieldsV1Routes "github.com/muety/wakapi/routes/compat/shields/v1"
 	wtV1Routes "github.com/muety/wakapi/routes/compat/wakatime/v1"
 	"github.com/muety/wakapi/services"
-	"github.com/muety/wakapi/utils"
+	_ "gorm.io/driver/mysql"
+	_ "gorm.io/driver/postgres"
+	_ "gorm.io/driver/sqlite"
+	"gorm.io/gorm"
 )

 var (
 	db     *gorm.DB
-	config *models.Config
+	config *conf.Config
 )

 var (
-	aliasService       *services.AliasService
-	heartbeatService   *services.HeartbeatService
-	userService        *services.UserService
-	summaryService     *services.SummaryService
-	aggregationService *services.AggregationService
-	keyValueService    *services.KeyValueService
+	aliasRepository           repositories.IAliasRepository
+	heartbeatRepository       repositories.IHeartbeatRepository
+	userRepository            repositories.IUserRepository
+	languageMappingRepository repositories.ILanguageMappingRepository
+	summaryRepository         repositories.ISummaryRepository
+	keyValueRepository        repositories.IKeyValueRepository
+)
+
+var (
+	aliasService           services.IAliasService
+	heartbeatService       services.IHeartbeatService
+	userService            services.IUserService
+	languageMappingService services.ILanguageMappingService
+	summaryService         services.ISummaryService
+	aggregationService     services.IAggregationService
+	keyValueService        services.IKeyValueService
+	miscService            services.IMiscService
 )

 // TODO: Refactor entire project to be structured after business domains

 func main() {
-	config = models.GetConfig()
+	config = conf.Load()

 	// Enable line numbers in logging
 	if config.IsDev() {
 		log.SetFlags(log.LstdFlags | log.Lshortfile)
 	}

-	// Show data loss warning
-	if config.CleanUp {
-		promptAbort("`CLEANUP` is set to `true`, which may cause data loss. Are you sure to continue?", 5)
-	}
-
 	// Connect to database
 	var err error
-	db, err = gorm.Open(config.DbDialect, utils.MakeConnectionString(config))
-	if config.DbDialect == "sqlite3" {
-		db.DB().Exec("PRAGMA foreign_keys = ON;")
+	db, err = gorm.Open(config.Db.GetDialector(), &gorm.Config{})
+	if config.Db.Dialect == "sqlite3" {
+		db.Raw("PRAGMA foreign_keys = ON;")
 	}
-	db.LogMode(config.IsDev())
-	db.DB().SetMaxIdleConns(int(config.DbMaxConn))
-	db.DB().SetMaxOpenConns(int(config.DbMaxConn))
+
+	if config.IsDev() {
+		db = db.Debug()
+	}
+	sqlDb, _ := db.DB()
+	sqlDb.SetMaxIdleConns(int(config.Db.MaxConn))
+	sqlDb.SetMaxOpenConns(int(config.Db.MaxConn))
 	if err != nil {
 		log.Println(err)
 		log.Fatal("could not connect to database")
 	}
-	// TODO: Graceful shutdown
-	defer db.Close()
+	defer sqlDb.Close()

 	// Migrate database schema
+	common.RunCustomPreMigrations(db, config)
 	runDatabaseMigrations()
-	applyFixtures()
+	common.RunCustomPostMigrations(db, config)
+
+	// Repositories
+	aliasRepository = repositories.NewAliasRepository(db)
+	heartbeatRepository = repositories.NewHeartbeatRepository(db)
+	userRepository = repositories.NewUserRepository(db)
+	languageMappingRepository = repositories.NewLanguageMappingRepository(db)
+	summaryRepository = repositories.NewSummaryRepository(db)
+	keyValueRepository = repositories.NewKeyValueRepository(db)

 	// Services
-	aliasService = services.NewAliasService(db)
-	heartbeatService = services.NewHeartbeatService(db)
-	userService = services.NewUserService(db)
-	summaryService = services.NewSummaryService(db, heartbeatService, aliasService)
-	aggregationService = services.NewAggregationService(db, userService, summaryService, heartbeatService)
-	keyValueService = services.NewKeyValueService(db)
+	aliasService = services.NewAliasService(aliasRepository)
+	userService = services.NewUserService(userRepository)
+	languageMappingService = services.NewLanguageMappingService(languageMappingRepository)
+	heartbeatService = services.NewHeartbeatService(heartbeatRepository, languageMappingService)
+	summaryService = services.NewSummaryService(summaryRepository, heartbeatService, aliasService)
+	aggregationService = services.NewAggregationService(userService, summaryService, heartbeatService)
+	keyValueService = services.NewKeyValueService(keyValueRepository)
+	miscService = services.NewMiscService(userService, summaryService, keyValueService)

-	// Custom migrations and initial data
-	migrateLanguages()
-
-	// Aggregate heartbeats to summaries and persist them
+	// Schedule background tasks
 	go aggregationService.Schedule()
-
-	if config.CleanUp {
-		go heartbeatService.ScheduleCleanUp()
-	}
+	go miscService.ScheduleCountTotalTime()

 	// TODO: move endpoint registration to the respective routes files

+	routes.Init()
+
 	// Handlers
-	heartbeatHandler := routes.NewHeartbeatHandler(heartbeatService)
 	summaryHandler := routes.NewSummaryHandler(summaryService)
 	healthHandler := routes.NewHealthHandler(db)
-	settingsHandler := routes.NewSettingsHandler(userService)
-	publicHandler := routes.NewIndexHandler(userService, keyValueService)
+	heartbeatHandler := routes.NewHeartbeatHandler(heartbeatService, languageMappingService)
+	settingsHandler := routes.NewSettingsHandler(userService, summaryService, aliasService, aggregationService, languageMappingService)
+	homeHandler := routes.NewHomeHandler(keyValueService)
+	loginHandler := routes.NewLoginHandler(userService)
+	imprintHandler := routes.NewImprintHandler(keyValueService)
 	wakatimeV1AllHandler := wtV1Routes.NewAllTimeHandler(summaryService)
 	wakatimeV1SummariesHandler := wtV1Routes.NewSummariesHandler(summaryService)
 	shieldV1BadgeHandler := shieldsV1Routes.NewBadgeHandler(summaryService, userService)
@ -118,6 +142,7 @@ func main() {
 		userService,
 		[]string{"/api/health", "/api/compat/shields/v1"},
 	).Handler
+	wakatimeRelayMiddleware := customMiddleware.NewWakatimeRelayMiddleware().Handler

 	// Router configs
 	router.Use(loggingMiddleware, recoveryMiddleware)
@ -126,12 +151,13 @@ func main() {
 	apiRouter.Use(corsMiddleware, authenticateMiddleware)

 	// Public Routes
-	publicRouter.Path("/").Methods(http.MethodGet).HandlerFunc(publicHandler.GetIndex)
-	publicRouter.Path("/login").Methods(http.MethodPost).HandlerFunc(publicHandler.PostLogin)
-	publicRouter.Path("/logout").Methods(http.MethodPost).HandlerFunc(publicHandler.PostLogout)
-	publicRouter.Path("/signup").Methods(http.MethodGet).HandlerFunc(publicHandler.GetSignup)
-	publicRouter.Path("/signup").Methods(http.MethodPost).HandlerFunc(publicHandler.PostSignup)
-	publicRouter.Path("/imprint").Methods(http.MethodGet).HandlerFunc(publicHandler.GetImprint)
+	publicRouter.Path("/").Methods(http.MethodGet).HandlerFunc(homeHandler.GetIndex)
+	publicRouter.Path("/login").Methods(http.MethodGet).HandlerFunc(loginHandler.GetIndex)
+	publicRouter.Path("/login").Methods(http.MethodPost).HandlerFunc(loginHandler.PostLogin)
+	publicRouter.Path("/logout").Methods(http.MethodPost).HandlerFunc(loginHandler.PostLogout)
+	publicRouter.Path("/signup").Methods(http.MethodGet).HandlerFunc(loginHandler.GetSignup)
+	publicRouter.Path("/signup").Methods(http.MethodPost).HandlerFunc(loginHandler.PostSignup)
+	publicRouter.Path("/imprint").Methods(http.MethodGet).HandlerFunc(imprintHandler.GetImprint)

 	// Summary Routes
 	summaryRouter.Methods(http.MethodGet).HandlerFunc(summaryHandler.GetIndex)
@ -139,14 +165,23 @@ func main() {
 	// Settings Routes
 	settingsRouter.Methods(http.MethodGet).HandlerFunc(settingsHandler.GetIndex)
 	settingsRouter.Path("/credentials").Methods(http.MethodPost).HandlerFunc(settingsHandler.PostCredentials)
+	settingsRouter.Path("/aliases").Methods(http.MethodPost).HandlerFunc(settingsHandler.PostAlias)
+	settingsRouter.Path("/aliases/delete").Methods(http.MethodPost).HandlerFunc(settingsHandler.DeleteAlias)
+	settingsRouter.Path("/language_mappings").Methods(http.MethodPost).HandlerFunc(settingsHandler.PostLanguageMapping)
+	settingsRouter.Path("/language_mappings/delete").Methods(http.MethodPost).HandlerFunc(settingsHandler.DeleteLanguageMapping)
 	settingsRouter.Path("/reset").Methods(http.MethodPost).HandlerFunc(settingsHandler.PostResetApiKey)
 	settingsRouter.Path("/badges").Methods(http.MethodPost).HandlerFunc(settingsHandler.PostToggleBadges)
+	settingsRouter.Path("/wakatime_integration").Methods(http.MethodPost).HandlerFunc(settingsHandler.PostSetWakatimeApiKey)
+	settingsRouter.Path("/regenerate").Methods(http.MethodPost).HandlerFunc(settingsHandler.PostRegenerateSummaries)

 	// API Routes
-	apiRouter.Path("/heartbeat").Methods(http.MethodPost).HandlerFunc(heartbeatHandler.ApiPost)
 	apiRouter.Path("/summary").Methods(http.MethodGet).HandlerFunc(summaryHandler.ApiGet)
 	apiRouter.Path("/health").Methods(http.MethodGet).HandlerFunc(healthHandler.ApiGet)

+	heartbeatsApiRouter := apiRouter.Path("/heartbeat").Methods(http.MethodPost).Subrouter()
+	heartbeatsApiRouter.Use(wakatimeRelayMiddleware)
+	heartbeatsApiRouter.Path("").HandlerFunc(heartbeatHandler.ApiPost)
+
 	// Wakatime compat V1 API Routes
 	wakatimeV1Router.Path("/users/{user}/all_time_since_today").Methods(http.MethodGet).HandlerFunc(wakatimeV1AllHandler.ApiGet)
 	wakatimeV1Router.Path("/users/{user}/summaries").Methods(http.MethodGet).HandlerFunc(wakatimeV1SummariesHandler.ApiGet)
@ -155,51 +190,78 @@ func main() {
 	shieldsV1Router.PathPrefix("/{user}").Methods(http.MethodGet).HandlerFunc(shieldV1BadgeHandler.ApiGet)

 	// Static Routes
-	router.PathPrefix("/assets").Handler(http.FileServer(http.Dir("./static")))
+	router.PathPrefix("/assets").Handler(http.FileServer(pkger.Dir("/static")))

 	// Listen HTTP
-	portString := config.Addr + ":" + strconv.Itoa(config.Port)
-	s := &http.Server{
-		Handler:      router,
-		Addr:         portString,
-		ReadTimeout:  10 * time.Second,
-		WriteTimeout: 10 * time.Second,
+	listen(router)
+}
+
+func listen(handler http.Handler) {
+	var s4, s6 *http.Server
+
+	// IPv4
+	if config.Server.ListenIpV4 != "" {
+		bindString4 := config.Server.ListenIpV4 + ":" + strconv.Itoa(config.Server.Port)
+		s4 = &http.Server{
+			Handler:      handler,
+			Addr:         bindString4,
+			ReadTimeout:  10 * time.Second,
+			WriteTimeout: 10 * time.Second,
+		}
 	}
-	log.Printf("Listening on %+s\n", portString)
-	s.ListenAndServe()
+
+	// IPv6
+	if config.Server.ListenIpV6 != "" {
+		bindString6 := "[" + config.Server.ListenIpV6 + "]:" + strconv.Itoa(config.Server.Port)
+		s6 = &http.Server{
+			Handler:      handler,
+			Addr:         bindString6,
+			ReadTimeout:  10 * time.Second,
+			WriteTimeout: 10 * time.Second,
+		}
+	}
+
+	if config.UseTLS() {
+		if s4 != nil {
+			fmt.Printf("Listening for HTTPS on %s.\n", s4.Addr)
+			go func() {
+				if err := s4.ListenAndServeTLS(config.Server.TlsCertPath, config.Server.TlsKeyPath); err != nil {
+					log.Fatalln(err)
+				}
+			}()
+		}
+		if s6 != nil {
+			fmt.Printf("Listening for HTTPS on %s.\n", s6.Addr)
+			go func() {
+				if err := s6.ListenAndServeTLS(config.Server.TlsCertPath, config.Server.TlsKeyPath); err != nil {
+					log.Fatalln(err)
+				}
+			}()
+		}
+	} else {
+		if s4 != nil {
+			fmt.Printf("Listening for HTTP on %s.\n", s4.Addr)
+			go func() {
+				if err := s4.ListenAndServe(); err != nil {
+					log.Fatalln(err)
+				}
+			}()
+		}
+		if s6 != nil {
+			fmt.Printf("Listening for HTTP on %s.\n", s6.Addr)
+			go func() {
+				if err := s6.ListenAndServe(); err != nil {
+					log.Fatalln(err)
+				}
+			}()
+		}
+	}
+
+	<-make(chan interface{}, 1)
 }

 func runDatabaseMigrations() {
-	if err := config.GetMigrationFunc(config.DbDialect)(db); err != nil {
+	if err := config.GetMigrationFunc(config.Db.Dialect)(db); err != nil {
 		log.Fatal(err)
 	}
 }
-
-func applyFixtures() {
-	if err := config.GetFixturesFunc(config.DbDialect)(db); err != nil {
-		log.Fatal(err)
-	}
-}
-
-func migrateLanguages() {
-	for k, v := range config.CustomLanguages {
-		result := db.Model(models.Heartbeat{}).
-			Where("language = ?", "").
-			Where("entity LIKE ?", "%."+k).
-			Updates(models.Heartbeat{Language: v})
-		if result.Error != nil {
-			log.Fatal(result.Error)
-		}
-		if result.RowsAffected > 0 {
-			log.Printf("Migrated %+v rows for custom language %+s.\n", result.RowsAffected, k)
-		}
-	}
-}
-
-func promptAbort(message string, timeoutSec int) {
-	log.Printf("[WARNING] %s.\nTo abort server startup, press Ctrl+C.\n", message)
-	for i := timeoutSec; i > 0; i-- {
-		log.Printf("Starting in %d seconds ...\n", i)
-		time.Sleep(1 * time.Second)
-	}
-}
--- a/middlewares/authenticate.go
+++ b/middlewares/authenticate.go
@ -4,30 +4,25 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	conf "github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/services"
 	"github.com/muety/wakapi/utils"
 	"log"
 	"net/http"
 	"strings"
-	"time"
-
-	"github.com/patrickmn/go-cache"
-
-	"github.com/muety/wakapi/models"
-	"github.com/muety/wakapi/services"
 )

 type AuthenticateMiddleware struct {
-	config         *models.Config
-	userSrvc       *services.UserService
-	cache          *cache.Cache
+	config         *conf.Config
+	userSrvc       services.IUserService
 	whitelistPaths []string
 }

-func NewAuthenticateMiddleware(userService *services.UserService, whitelistPaths []string) *AuthenticateMiddleware {
+func NewAuthenticateMiddleware(userService services.IUserService, whitelistPaths []string) *AuthenticateMiddleware {
 	return &AuthenticateMiddleware{
-		config:         models.GetConfig(),
+		config:         conf.Get(),
 		userSrvc:       userService,
-		cache:          cache.New(1*time.Hour, 2*time.Hour),
 		whitelistPaths: whitelistPaths,
 	}
 }
@ -57,14 +52,12 @@ func (m *AuthenticateMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Reques
 		if strings.HasPrefix(r.URL.Path, "/api") {
 			w.WriteHeader(http.StatusUnauthorized)
 		} else {
-			utils.ClearCookie(w, models.AuthCookieKey, !m.config.InsecureCookies)
-			http.Redirect(w, r, fmt.Sprintf("%s/?error=unauthorized", m.config.BasePath), http.StatusFound)
+			http.SetCookie(w, m.config.GetClearCookie(models.AuthCookieKey, "/"))
+			http.Redirect(w, r, fmt.Sprintf("%s/?error=unauthorized", m.config.Server.BasePath), http.StatusFound)
 		}
 		return
 	}

-	m.cache.Set(user.ID, user, cache.DefaultExpiration)
-
 	ctx := context.WithValue(r.Context(), models.UserKey, user)
 	next(w, r.WithContext(ctx))
 }
@ -77,14 +70,9 @@ func (m *AuthenticateMiddleware) tryGetUserByApiKey(r *http.Request) (*models.Us

 	var user *models.User
 	userKey := strings.TrimSpace(key)
-	cachedUser, ok := m.cache.Get(userKey)
-	if !ok {
-		user, err = m.userSrvc.GetUserByKey(userKey)
-		if err != nil {
-			return nil, err
-		}
-	} else {
-		user = cachedUser.(*models.User)
+	user, err = m.userSrvc.GetUserByKey(userKey)
+	if err != nil {
+		return nil, err
 	}
 	return user, nil
 }
@ -95,18 +83,12 @@ func (m *AuthenticateMiddleware) tryGetUserByCookie(r *http.Request) (*models.Us
 		return nil, err
 	}

-	cachedUser, ok := m.cache.Get(login.Username)
-
-	if ok {
-		return cachedUser.(*models.User), nil
-	}
-
 	user, err := m.userSrvc.GetUserById(login.Username)
 	if err != nil {
 		return nil, err
 	}

-	if !CheckAndMigratePassword(user, login, m.config.PasswordSalt, m.userSrvc) {
+	if !CheckAndMigratePassword(user, login, m.config.Security.PasswordSalt, &m.userSrvc) {
 		return nil, errors.New("invalid password")
 	}

@ -114,14 +96,14 @@ func (m *AuthenticateMiddleware) tryGetUserByCookie(r *http.Request) (*models.Us
 }

 // migrate old md5-hashed passwords to new salted bcrypt hashes for backwards compatibility
-func CheckAndMigratePassword(user *models.User, login *models.Login, salt string, userServiceRef *services.UserService) bool {
+func CheckAndMigratePassword(user *models.User, login *models.Login, salt string, userServiceRef *services.IUserService) bool {
 	if utils.IsMd5(user.Password) {
-		if utils.CheckPasswordMd5(user, login.Password) {
+		if utils.CompareMd5(user.Password, login.Password, "") {
 			log.Printf("migrating old md5 password to new bcrypt format for user '%s'", user.ID)
-			userServiceRef.MigrateMd5Password(user, login)
+			(*userServiceRef).MigrateMd5Password(user, login)
 			return true
 		}
 		return false
 	}
-	return utils.CheckPasswordBcrypt(user, login.Password, salt)
+	return utils.CompareBcrypt(user.Password, login.Password, salt)
 }
--- a/middlewares/authenticate_test.go
+++ b/middlewares/authenticate_test.go
@ -0,0 +1,56 @@
+package middlewares
+
+import (
+	"encoding/base64"
+	"fmt"
+	"github.com/muety/wakapi/mocks"
+	"github.com/muety/wakapi/models"
+	"github.com/stretchr/testify/assert"
+	"net/http"
+	"testing"
+)
+
+func TestAuthenticateMiddleware_tryGetUserByApiKey_Success(t *testing.T) {
+	testApiKey := "z5uig69cn9ut93n"
+	testToken := base64.StdEncoding.EncodeToString([]byte(testApiKey))
+	testUser := &models.User{ApiKey: testApiKey}
+
+	mockRequest := &http.Request{
+		Header: http.Header{
+			"Authorization": []string{fmt.Sprintf("Basic %s", testToken)},
+		},
+	}
+
+	userServiceMock := new(mocks.UserServiceMock)
+	userServiceMock.On("GetUserByKey", testApiKey).Return(testUser, nil)
+
+	sut := NewAuthenticateMiddleware(userServiceMock, []string{})
+
+	result, err := sut.tryGetUserByApiKey(mockRequest)
+
+	assert.Nil(t, err)
+	assert.Equal(t, testUser, result)
+}
+
+func TestAuthenticateMiddleware_tryGetUserByApiKey_InvalidHeader(t *testing.T) {
+	testApiKey := "z5uig69cn9ut93n"
+	testToken := base64.StdEncoding.EncodeToString([]byte(testApiKey))
+
+	mockRequest := &http.Request{
+		Header: http.Header{
+			// 'Basic' prefix missing here
+			"Authorization": []string{fmt.Sprintf("%s", testToken)},
+		},
+	}
+
+	userServiceMock := new(mocks.UserServiceMock)
+
+	sut := NewAuthenticateMiddleware(userServiceMock, []string{})
+
+	result, err := sut.tryGetUserByApiKey(mockRequest)
+
+	assert.Error(t, err)
+	assert.Nil(t, result)
+}
+
+// TODO: somehow test cookie auth function
--- a/middlewares/custom/wakatime.go
+++ b/middlewares/custom/wakatime.go
@ -0,0 +1,97 @@
+package relay
+
+import (
+	"bytes"
+	"encoding/base64"
+	"fmt"
+	"github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"io"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"time"
+)
+
+const (
+	WakatimeApiUrl                = "https://wakatime.com/api/v1"
+	WakatimeApiHeartbeatsEndpoint = "/users/current/heartbeats.bulk"
+)
+
+/* Middleware to conditionally relay heartbeats to Wakatime */
+type WakatimeRelayMiddleware struct {
+	httpClient *http.Client
+}
+
+func NewWakatimeRelayMiddleware() *WakatimeRelayMiddleware {
+	return &WakatimeRelayMiddleware{
+		httpClient: &http.Client{
+			Timeout: 10 * time.Second,
+		},
+	}
+}
+
+func (m *WakatimeRelayMiddleware) Handler(h http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		m.ServeHTTP(w, r, h.ServeHTTP)
+	})
+}
+
+func (m *WakatimeRelayMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
+	defer next(w, r)
+
+	if r.Method != http.MethodPost {
+		return
+	}
+
+	user := r.Context().Value(models.UserKey).(*models.User)
+	if user == nil || user.WakatimeApiKey == "" {
+		return
+	}
+
+	body, _ := ioutil.ReadAll(r.Body)
+	r.Body.Close()
+	r.Body = ioutil.NopCloser(bytes.NewBuffer(body))
+
+	headers := http.Header{
+		"X-Machine-Name": r.Header.Values("X-Machine-Name"),
+		"Content-Type":   r.Header.Values("Content-Type"),
+		"Accept":         r.Header.Values("Accept"),
+		"User-Agent":     r.Header.Values("User-Agent"),
+		"X-Origin": []string{
+			fmt.Sprintf("wakapi v%s", config.Get().Version),
+		},
+		"Authorization": []string{
+			fmt.Sprintf("Basic %s", base64.StdEncoding.EncodeToString([]byte(user.WakatimeApiKey))),
+		},
+	}
+
+	go m.send(
+		http.MethodPost,
+		WakatimeApiUrl+WakatimeApiHeartbeatsEndpoint,
+		bytes.NewReader(body),
+		headers,
+	)
+}
+
+func (m *WakatimeRelayMiddleware) send(method, url string, body io.Reader, headers http.Header) {
+	request, err := http.NewRequest(method, url, body)
+	if err != nil {
+		log.Printf("error constructing relayed request – %v\n", err)
+	}
+
+	for k, v := range headers {
+		for _, h := range v {
+			request.Header.Set(k, h)
+		}
+	}
+
+	response, err := m.httpClient.Do(request)
+	if err != nil {
+		log.Printf("error executing relayed request – %v\n", err)
+	}
+
+	if response.StatusCode < 200 || response.StatusCode >= 300 {
+		log.Printf("failed to relay request, got status %d\n", response.StatusCode)
+	}
+}
--- a/migrations/common/common.go
+++ b/migrations/common/common.go
@ -0,0 +1,11 @@
+package common
+
+import (
+	"github.com/muety/wakapi/config"
+	"gorm.io/gorm"
+)
+
+type migrationFunc struct {
+	f    func(db *gorm.DB, cfg *config.Config) error
+	name string
+}
--- a/migrations/common/custom_post.go
+++ b/migrations/common/custom_post.go
@ -0,0 +1,30 @@
+package common
+
+import (
+	"github.com/muety/wakapi/config"
+	"gorm.io/gorm"
+	"log"
+)
+
+var customPostMigrations []migrationFunc
+
+func init() {
+	customPostMigrations = []migrationFunc{
+		{
+			f: func(db *gorm.DB, cfg *config.Config) error {
+				return cfg.GetFixturesFunc(cfg.Db.Dialect)(db)
+			},
+			name: "apply fixtures",
+		},
+		// TODO: add function to modify aggregated summaries according to configured custom language mappings
+	}
+}
+
+func RunCustomPostMigrations(db *gorm.DB, cfg *config.Config) {
+	for _, m := range customPostMigrations {
+		log.Printf("potentially running migration '%s'\n", m.name)
+		if err := m.f(db, cfg); err != nil {
+			log.Fatalf("migration '%s' failed – %v\n", m.name, err)
+		}
+	}
+}
--- a/migrations/common/custom_pre.go
+++ b/migrations/common/custom_pre.go
@ -0,0 +1,108 @@
+package common
+
+import (
+	"github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"gorm.io/gorm"
+	"log"
+)
+
+var customPreMigrations []migrationFunc
+
+func init() {
+	customPreMigrations = []migrationFunc{
+		{
+			f: func(db *gorm.DB, cfg *config.Config) error {
+				migrator := db.Migrator()
+				oldTableName, newTableName := "custom_rules", "language_mappings"
+				oldIndexName, newIndexName := "idx_customrule_user", "idx_language_mapping_user"
+
+				if migrator.HasTable(oldTableName) {
+					log.Printf("renaming '%s' table to '%s'\n", oldTableName, newTableName)
+					if err := migrator.RenameTable(oldTableName, &models.LanguageMapping{}); err != nil {
+						return err
+					}
+
+					log.Printf("renaming '%s' index to '%s'\n", oldIndexName, newIndexName)
+					return migrator.RenameIndex(&models.LanguageMapping{}, oldIndexName, newIndexName)
+				}
+				return nil
+			},
+			name: "rename language mappings table",
+		},
+		{
+			f: func(db *gorm.DB, cfg *config.Config) error {
+				// drop all already existing foreign key constraints
+				// afterwards let them be re-created by auto migrate with the newly introduced cascade settings,
+
+				migrator := db.Migrator()
+				const lookupKey = "20201106-migration_cascade_constraints"
+
+				if cfg.Db.Dialect == config.SQLDialectSqlite {
+					// https://stackoverflow.com/a/1884893/3112139
+					// unfortunately, we can't migrate existing sqlite databases to the newly introduced cascade settings
+					// things like deleting all summaries won't work in those cases unless an entirely new db is created
+					log.Println("not attempting to drop and regenerate constraints on sqlite")
+					return nil
+				}
+
+				if !migrator.HasTable(&models.KeyStringValue{}) {
+					log.Println("key-value table not yet existing")
+					return nil
+				}
+
+				condition := "key = ?"
+				if cfg.Db.Dialect == config.SQLDialectMysql {
+					condition = "`key` = ?"
+				}
+				lookupResult := db.Where(condition, lookupKey).First(&models.KeyStringValue{})
+				if lookupResult.Error == nil && lookupResult.RowsAffected > 0 {
+					log.Println("no need to migrate cascade constraints")
+					return nil
+				}
+
+				// SELECT * FROM INFORMATION_SCHEMA.table_constraints;
+				constraints := map[string]interface{}{
+					"fk_summaries_editors":           &models.SummaryItem{},
+					"fk_summaries_languages":         &models.SummaryItem{},
+					"fk_summaries_machines":          &models.SummaryItem{},
+					"fk_summaries_operating_systems": &models.SummaryItem{},
+					"fk_summaries_projects":          &models.SummaryItem{},
+					"fk_summary_items_summary":       &models.SummaryItem{},
+					"fk_summaries_user":              &models.Summary{},
+					"fk_language_mappings_user":      &models.LanguageMapping{},
+					"fk_heartbeats_user":             &models.Heartbeat{},
+					"fk_aliases_user":                &models.Alias{},
+				}
+
+				for name, table := range constraints {
+					if migrator.HasConstraint(table, name) {
+						log.Printf("dropping constraint '%s'", name)
+						if err := migrator.DropConstraint(table, name); err != nil {
+							return err
+						}
+					}
+				}
+
+				if err := db.Create(&models.KeyStringValue{
+					Key:   lookupKey,
+					Value: "done",
+				}).Error; err != nil {
+					return err
+				}
+
+				return nil
+			},
+			name: "add cascade constraints",
+		},
+	}
+}
+
+func RunCustomPreMigrations(db *gorm.DB, cfg *config.Config) {
+	for _, m := range customPreMigrations {
+		log.Printf("potentially running migration '%s'\n", m.name)
+		if err := m.f(db, cfg); err != nil {
+			log.Fatalf("migration '%s' failed – %v\n", m.name, err)
+		}
+	}
+}
--- a/migrations/common/languages.go
+++ b/migrations/common/languages.go
@ -0,0 +1,25 @@
+package common
+
+import (
+	"github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"gorm.io/gorm"
+	"log"
+)
+
+func MigrateLanguages(db *gorm.DB) {
+	cfg := config.Get()
+
+	for k, v := range cfg.App.CustomLanguages {
+		result := db.Model(models.Heartbeat{}).
+			Where("language = ?", "").
+			Where("entity LIKE ?", "%."+k).
+			Updates(models.Heartbeat{Language: v})
+		if result.Error != nil {
+			log.Fatal(result.Error)
+		}
+		if result.RowsAffected > 0 {
+			log.Printf("Migrated %+v rows for custom language %+s.\n", result.RowsAffected, k)
+		}
+	}
+}
--- a/migrations/sqlite3/1_initial.sql
+++ b/migrations/sqlite3/1_initial.sql
@ -1,87 +0,0 @@
-- +migrate Up
-- SQL in section 'Up' is executed when this migration is applied
-create table aliases
-(
-    id      integer primary key autoincrement,
-    type    integer      not null,
-    user_id varchar(255) not null,
-    key     varchar(255) not null,
-    value   varchar(255) not null
-);
-
-create index idx_alias_type_key
-    on aliases (type, key);
-
-create index idx_alias_user
-    on aliases (user_id);
-
-create table summaries
-(
-    id        integer primary key autoincrement,
-    user_id   varchar(255) not null,
-    from_time timestamp default CURRENT_TIMESTAMP not null,
-    to_time   timestamp default CURRENT_TIMESTAMP not null
-);
-
-create index idx_time_summary_user
-    on summaries (user_id, from_time, to_time);
-
-create table summary_items
-(
-    id         integer primary key autoincrement,
-    summary_id integer REFERENCES summaries (id) ON DELETE CASCADE ON UPDATE CASCADE,
-    type       integer,
-    key        varchar(255),
-    total      bigint
-);
-
-create table users
-(
-    id       varchar(255) primary key,
-    api_key  varchar(255) unique,
-    password varchar(255)
-);
-
-create table heartbeats
-(
-    id               integer primary key autoincrement,
-    user_id          varchar(255) not null REFERENCES users (id) ON DELETE RESTRICT ON UPDATE RESTRICT,
-    entity           varchar(255) not null,
-    type             varchar(255),
-    category         varchar(255),
-    project          varchar(255),
-    branch           varchar(255),
-    language         varchar(255),
-    is_write         bool,
-    editor           varchar(255),
-    operating_system varchar(255),
-    time             timestamp default CURRENT_TIMESTAMP
-);
-
-create index idx_entity
-    on heartbeats (entity);
-
-create index idx_language
-    on heartbeats (language);
-
-create index idx_time
-    on heartbeats (time);
-
-create index idx_time_user
-    on heartbeats (user_id, time);
-
-
-
-- +migrate Down
-- SQL section 'Down' is executed when this migration is rolled back
-DROP INDEX idx_alias_user;
-DROP INDEX idx_alias_type_key;
-DROP TABLE aliases;
-DROP INDEX idx_time_summary_user;
-DROP TABLE summaries;
-DROP TABLE summary_items;
-DROP TABLE heartbeats;
-DROP INDEX idx_entity;
-DROP INDEX idx_language;
-DROP INDEX idx_time;
-DROP INDEX idx_time_user;
--- a/migrations/sqlite3/2_key_value_table.sql
+++ b/migrations/sqlite3/2_key_value_table.sql
@ -1,11 +0,0 @@
-- +migrate Up
-- SQL in section 'Up' is executed when this migration is applied
-create table key_string_values
-(
-    key      varchar(255) primary key,
-    value    text
-);
-
-- +migrate Down
-- SQL section 'Down' is executed when this migration is rolled back
-drop table key_string_value;
--- a/migrations/sqlite3/3_user_creation_date.sql
+++ b/migrations/sqlite3/3_user_creation_date.sql
@ -1,20 +0,0 @@
-- +migrate Up
-- SQL in section 'Up' is executed when this migration is applied
-
-- SQLite does not allow altering a table to add a new column with default of CURRENT_TIMESTAMP
-- See https://www.sqlite.org/lang_altertable.html
-
-alter table users
-    add `created_at` timestamp default '2020-01-01T00:00:00.000' not null;
-
-alter table users
-    add `last_logged_in_at` timestamp default '2020-01-01T00:00:00.000' not null;
-
-- +migrate Down
-- SQL section 'Down' is executed when this migration is rolled back
-
-alter table users
-    drop column `created_at`;
-
-alter table users
-    drop column `last_logged_in_at`;
--- a/migrations/sqlite3/4_machine_column.sql
+++ b/migrations/sqlite3/4_machine_column.sql
@ -1,11 +0,0 @@
-- +migrate Up
-- SQL in section 'Up' is executed when this migration is applied
-
-alter table heartbeats
-    add column `machine` varchar(255);
-
-- +migrate Down
-- SQL section 'Down' is executed when this migration is rolled back
-
-alter table heartbeats
-    drop column `machine`;
--- a/migrations/sqlite3/5_badges_column.sql
+++ b/migrations/sqlite3/5_badges_column.sql
@ -1,11 +0,0 @@
-- +migrate Up
-- SQL in section 'Up' is executed when this migration is applied
-
-alter table users
-    add column `badges_enabled` tinyint(1) default 0 not null;
-
-- +migrate Down
-- SQL section 'Down' is executed when this migration is rolled back
-
-alter table users
-    drop column `badges_enabled`;
--- a/mocks/alias_repository.go
+++ b/mocks/alias_repository.go
@ -0,0 +1,45 @@
+package mocks
+
+import (
+	"github.com/muety/wakapi/models"
+	"github.com/stretchr/testify/mock"
+)
+
+type AliasRepositoryMock struct {
+	mock.Mock
+}
+
+func (m *AliasRepositoryMock) GetByUser(s string) ([]*models.Alias, error) {
+	args := m.Called(s)
+	return args.Get(0).([]*models.Alias), args.Error(1)
+}
+
+func (m *AliasRepositoryMock) GetByUserAndKey(s string, s2 string) ([]*models.Alias, error) {
+	args := m.Called(s, s2)
+	return args.Get(0).([]*models.Alias), args.Error(1)
+}
+
+func (m *AliasRepositoryMock) GetByUserAndKeyAndType(s string, s2 string, u uint8) ([]*models.Alias, error) {
+	args := m.Called(s, s2, u)
+	return args.Get(0).([]*models.Alias), args.Error(1)
+}
+
+func (m *AliasRepositoryMock) GetByUserAndTypeAndValue(s string, u uint8, s2 string) (*models.Alias, error) {
+	args := m.Called(s, u, s2)
+	return args.Get(0).(*models.Alias), args.Error(1)
+}
+
+func (m *AliasRepositoryMock) Insert(s *models.Alias) (*models.Alias, error) {
+	args := m.Called(s)
+	return args.Get(0).(*models.Alias), args.Error(1)
+}
+
+func (m *AliasRepositoryMock) Delete(u uint) error {
+	args := m.Called(u)
+	return args.Error(0)
+}
+
+func (m *AliasRepositoryMock) DeleteBatch(u []uint) error {
+	args := m.Called(u)
+	return args.Error(0)
+}
--- a/mocks/alias_service.go
+++ b/mocks/alias_service.go
@ -0,0 +1,50 @@
+package mocks
+
+import (
+	"github.com/muety/wakapi/models"
+	"github.com/stretchr/testify/mock"
+)
+
+type AliasServiceMock struct {
+	mock.Mock
+}
+
+func (m *AliasServiceMock) IsInitialized(s string) bool {
+	args := m.Called(s)
+	return args.Bool(0)
+}
+
+func (m *AliasServiceMock) InitializeUser(s string) error {
+	args := m.Called(s)
+	return args.Error(0)
+}
+
+func (m *AliasServiceMock) GetAliasOrDefault(s string, u uint8, s2 string) (string, error) {
+	args := m.Called(s, u, s2)
+	return args.String(0), args.Error(1)
+}
+
+func (m *AliasServiceMock) GetByUser(s string) ([]*models.Alias, error) {
+	args := m.Called(s)
+	return args.Get(0).([]*models.Alias), args.Error(1)
+}
+
+func (m *AliasServiceMock) GetByUserAndKeyAndType(s string, s2 string, u uint8) ([]*models.Alias, error) {
+	args := m.Called(s, s2, u)
+	return args.Get(0).([]*models.Alias), args.Error(1)
+}
+
+func (m *AliasServiceMock) Create(a *models.Alias) (*models.Alias, error) {
+	args := m.Called(a)
+	return args.Get(0).(*models.Alias), args.Error(1)
+}
+
+func (m *AliasServiceMock) Delete(s *models.Alias) error {
+	args := m.Called(s)
+	return args.Error(0)
+}
+
+func (m *AliasServiceMock) DeleteMulti(a []*models.Alias) error {
+	args := m.Called(a)
+	return args.Error(0)
+}
--- a/mocks/heartbeat_service.go
+++ b/mocks/heartbeat_service.go
@ -0,0 +1,31 @@
+package mocks
+
+import (
+	"github.com/muety/wakapi/models"
+	"github.com/stretchr/testify/mock"
+	"time"
+)
+
+type HeartbeatServiceMock struct {
+	mock.Mock
+}
+
+func (m *HeartbeatServiceMock) InsertBatch(heartbeats []*models.Heartbeat) error {
+	args := m.Called(heartbeats)
+	return args.Error(0)
+}
+
+func (m *HeartbeatServiceMock) GetAllWithin(time time.Time, time2 time.Time, user *models.User) ([]*models.Heartbeat, error) {
+	args := m.Called(time, time2, user)
+	return args.Get(0).([]*models.Heartbeat), args.Error(1)
+}
+
+func (m *HeartbeatServiceMock) GetFirstByUsers() ([]*models.TimeByUser, error) {
+	args := m.Called()
+	return args.Get(0).([]*models.TimeByUser), args.Error(1)
+}
+
+func (m *HeartbeatServiceMock) DeleteBefore(time time.Time) error {
+	args := m.Called(time)
+	return args.Error(0)
+}
--- a/mocks/summary_repository.go
+++ b/mocks/summary_repository.go
@ -0,0 +1,31 @@
+package mocks
+
+import (
+	"github.com/muety/wakapi/models"
+	"github.com/stretchr/testify/mock"
+	"time"
+)
+
+type SummaryRepositoryMock struct {
+	mock.Mock
+}
+
+func (m *SummaryRepositoryMock) Insert(summary *models.Summary) error {
+	args := m.Called(summary)
+	return args.Error(0)
+}
+
+func (m *SummaryRepositoryMock) GetByUserWithin(user *models.User, time time.Time, time2 time.Time) ([]*models.Summary, error) {
+	args := m.Called(user, time, time2)
+	return args.Get(0).([]*models.Summary), args.Error(1)
+}
+
+func (m *SummaryRepositoryMock) GetLastByUser() ([]*models.TimeByUser, error) {
+	args := m.Called()
+	return args.Get(0).([]*models.TimeByUser), args.Error(1)
+}
+
+func (m *SummaryRepositoryMock) DeleteByUser(s string) error {
+	args := m.Called(s)
+	return args.Error(0)
+}
--- a/mocks/user_service.go
+++ b/mocks/user_service.go
@ -0,0 +1,55 @@
+package mocks
+
+import (
+	"github.com/muety/wakapi/models"
+	"github.com/stretchr/testify/mock"
+)
+
+type UserServiceMock struct {
+	mock.Mock
+}
+
+func (m *UserServiceMock) GetUserById(s string) (*models.User, error) {
+	args := m.Called(s)
+	return args.Get(0).(*models.User), args.Error(1)
+}
+
+func (m *UserServiceMock) GetUserByKey(s string) (*models.User, error) {
+	args := m.Called(s)
+	return args.Get(0).(*models.User), args.Error(1)
+}
+
+func (m *UserServiceMock) GetAll() ([]*models.User, error) {
+	args := m.Called()
+	return args.Get(0).([]*models.User), args.Error(1)
+}
+
+func (m *UserServiceMock) CreateOrGet(signup *models.Signup) (*models.User, bool, error) {
+	args := m.Called(signup)
+	return args.Get(0).(*models.User), args.Bool(1), args.Error(2)
+}
+
+func (m *UserServiceMock) Update(user *models.User) (*models.User, error) {
+	args := m.Called(user)
+	return args.Get(0).(*models.User), args.Error(1)
+}
+
+func (m *UserServiceMock) ResetApiKey(user *models.User) (*models.User, error) {
+	args := m.Called(user)
+	return args.Get(0).(*models.User), args.Error(1)
+}
+
+func (m *UserServiceMock) ToggleBadges(user *models.User) (*models.User, error) {
+	args := m.Called(user)
+	return args.Get(0).(*models.User), args.Error(1)
+}
+
+func (m *UserServiceMock) SetWakatimeApiKey(user *models.User, s string) (*models.User, error) {
+	args := m.Called(user, s)
+	return args.Get(0).(*models.User), args.Error(1)
+}
+
+func (m *UserServiceMock) MigrateMd5Password(user *models.User, login *models.Login) (*models.User, error) {
+	args := m.Called(user, login)
+	return args.Get(0).(*models.User), args.Error(1)
+}
--- a/models/alias.go
+++ b/models/alias.go
@ -2,8 +2,22 @@ package models

 type Alias struct {
 	ID     uint   `gorm:"primary_key"`
-	Type   uint8  `gorm:"not null; index:idx_alias_type_key"`
+	Type   uint8  `gorm:"not null; index:idx_alias_type_key; constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
+	User   *User  `json:"-" gorm:"not null"`
 	UserID string `gorm:"not null; index:idx_alias_user"`
 	Key    string `gorm:"not null; index:idx_alias_type_key"`
 	Value  string `gorm:"not null"`
 }
+
+func (a *Alias) IsValid() bool {
+	return a.Key != "" && a.Value != "" && a.validateType()
+}
+
+func (a *Alias) validateType() bool {
+	for _, t := range SummaryTypes() {
+		if a.Type == t {
+			return true
+		}
+	}
+	return false
+}
--- a/models/compat/shields/v1/badge.go
+++ b/models/compat/shields/v1/badge.go
@ -22,8 +22,8 @@ type BadgeData struct {

 func NewBadgeDataFrom(summary *models.Summary, filters *models.Filters) *BadgeData {
 	var total time.Duration
-	if hasFilter, filterType, filterKey := filters.First(); hasFilter {
-		total = summary.TotalTimeByKey(filterType, filterKey)
+	if hasFilter, _, _ := filters.First(); hasFilter {
+		total = summary.TotalTimeByFilters(filters)
 	} else {
 		total = summary.TotalTime()
 	}
--- a/models/compat/wakatime/v1/all_time.go
+++ b/models/compat/wakatime/v1/all_time.go
@ -21,7 +21,7 @@ type allTimeData struct {
 func NewAllTimeFrom(summary *models.Summary, filters *models.Filters) *AllTimeViewModel {
 	var total time.Duration
 	if key := filters.Project; key != "" {
-		total = summary.TotalTimeByKey(models.SummaryProject, key)
+		total = summary.TotalTimeByFilters(filters)
 	} else {
 		total = summary.TotalTime()
 	}
--- a/models/compat/wakatime/v1/summaries.go
+++ b/models/compat/wakatime/v1/summaries.go
@ -64,11 +64,11 @@ func NewSummariesFrom(summaries []*models.Summary, filters *models.Filters) *Sum
 	for i, s := range summaries {
 		data[i] = newDataFrom(s)

-		if s.FromTime.Before(minDate) {
-			minDate = s.FromTime
+		if s.FromTime.T().Before(minDate) {
+			minDate = s.FromTime.T()
 		}
-		if s.ToTime.After(maxDate) {
-			maxDate = s.ToTime
+		if s.ToTime.T().After(maxDate) {
+			maxDate = s.ToTime.T()
 		}
 	}

@ -101,8 +101,8 @@ func newDataFrom(s *models.Summary) *summariesData {
 		},
 		Range: &summariesRange{
 			Date:     time.Now().Format(time.RFC3339),
-			End:      s.ToTime,
-			Start:    s.FromTime,
+			End:      s.ToTime.T(),
+			Start:    s.FromTime.T(),
 			Text:     "",
 			Timezone: zone,
 		},
@ -158,13 +158,17 @@ func convertEntry(e *models.SummaryItem, entityTotal time.Duration) *summariesEn
 	hrs := int(total.Hours())
 	mins := int((total - time.Duration(hrs)*time.Hour).Minutes())
 	secs := int((total - time.Duration(hrs)*time.Hour - time.Duration(mins)*time.Minute).Seconds())
+	percentage := math.Round((total.Seconds()/entityTotal.Seconds())*1e4) / 100
+	if math.IsNaN(percentage) || math.IsInf(percentage, 0) {
+		percentage = 0
+	}

 	return &summariesEntry{
 		Digital:      fmt.Sprintf("%d:%d:%d", hrs, mins, secs),
 		Hours:        hrs,
 		Minutes:      mins,
 		Name:         e.Key,
-		Percent:      math.Round((total.Seconds()/entityTotal.Seconds())*1e4) / 100,
+		Percent:      percentage,
 		Seconds:      secs,
 		Text:         utils.FmtWakatimeDuration(total),
 		TotalSeconds: total.Seconds(),
--- a/models/config.go
+++ b/models/config.go
@ -1,229 +0,0 @@
-package models
-
-import (
-	"encoding/json"
-	"github.com/gorilla/securecookie"
-	"github.com/jinzhu/gorm"
-	"github.com/joho/godotenv"
-	migrate "github.com/rubenv/sql-migrate"
-	"gopkg.in/ini.v1"
-	"io/ioutil"
-	"log"
-	"os"
-	"strconv"
-	"strings"
-)
-
-var cfg *Config
-
-type Config struct {
-	Env        string
-	Version    string
-	Port       int
-	Addr       string
-	BasePath   string
-	DbHost     string
-	DbPort     uint
-	DbUser     string
-	DbPassword string
-	DbName     string
-	DbDialect  string
-	DbMaxConn  uint
-	CleanUp    bool
-	// this is actually a pepper (https://en.wikipedia.org/wiki/Pepper_(cryptography))
-	PasswordSalt         string
-	SecureCookieHashKey  string
-	SecureCookieBlockKey string
-	InsecureCookies      bool
-	CustomLanguages      map[string]string
-	LanguageColors       map[string]string
-	SecureCookie         *securecookie.SecureCookie
-}
-
-func (c *Config) IsDev() bool {
-	return IsDev(c.Env)
-}
-
-func (c *Config) GetMigrationFunc(dbDialect string) MigrationFunc {
-	switch dbDialect {
-	case "sqlite3":
-		return func(db *gorm.DB) error {
-			migrations := &migrate.FileMigrationSource{
-				Dir: "migrations/sqlite3",
-			}
-
-			migrate.SetIgnoreUnknown(true)
-			n, err := migrate.Exec(db.DB(), "sqlite3", migrations, migrate.Up)
-			if err != nil {
-				return err
-			}
-
-			log.Printf("applied %d migrations\n", n)
-			return nil
-		}
-	default:
-		return func(db *gorm.DB) error {
-			db.AutoMigrate(&Alias{})
-			db.AutoMigrate(&Summary{})
-			db.AutoMigrate(&SummaryItem{})
-			db.AutoMigrate(&User{})
-			db.AutoMigrate(&Heartbeat{}).AddForeignKey("user_id", "users(id)", "RESTRICT", "RESTRICT")
-			db.AutoMigrate(&SummaryItem{}).AddForeignKey("summary_id", "summaries(id)", "CASCADE", "CASCADE")
-			db.AutoMigrate(&KeyStringValue{})
-			return nil
-		}
-	}
-}
-
-func (c *Config) GetFixturesFunc(dbDialect string) MigrationFunc {
-	return func(db *gorm.DB) error {
-		migrations := &migrate.FileMigrationSource{
-			Dir: "migrations/common/fixtures",
-		}
-
-		migrate.SetIgnoreUnknown(true)
-		n, err := migrate.Exec(db.DB(), dbDialect, migrations, migrate.Up)
-		if err != nil {
-			return err
-		}
-
-		log.Printf("applied %d fixtures\n", n)
-		return nil
-	}
-}
-
-func IsDev(env string) bool {
-	return env == "dev" || env == "development"
-}
-
-func SetConfig(config *Config) {
-	cfg = config
-}
-
-func GetConfig() *Config {
-	return cfg
-}
-
-func LookupFatal(key string) string {
-	v, ok := os.LookupEnv(key)
-	if !ok {
-		log.Fatalf("missing env variable '%s'", key)
-	}
-	return v
-}
-
-func readVersion() string {
-	file, err := os.Open("version.txt")
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer file.Close()
-
-	bytes, err := ioutil.ReadAll(file)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	return string(bytes)
-}
-
-func readConfig() *Config {
-	if err := godotenv.Load(); err != nil {
-		log.Fatal(err)
-	}
-
-	version := readVersion()
-
-	env := LookupFatal("ENV")
-	dbType := LookupFatal("WAKAPI_DB_TYPE")
-	dbUser := LookupFatal("WAKAPI_DB_USER")
-	dbPassword := LookupFatal("WAKAPI_DB_PASSWORD")
-	dbHost := LookupFatal("WAKAPI_DB_HOST")
-	dbName := LookupFatal("WAKAPI_DB_NAME")
-	dbPortStr := LookupFatal("WAKAPI_DB_PORT")
-	passwordSalt := LookupFatal("WAKAPI_PASSWORD_SALT")
-	dbPort, err := strconv.Atoi(dbPortStr)
-
-	cfg, err := ini.Load("config.ini")
-	if err != nil {
-		log.Fatalf("Fail to read file: %v", err)
-	}
-
-	if dbType == "" {
-		dbType = "mysql"
-	}
-
-	dbMaxConn := cfg.Section("database").Key("max_connections").MustUint(1)
-	addr := cfg.Section("server").Key("listen").MustString("127.0.0.1")
-	insecureCookies := IsDev(env) || cfg.Section("server").Key("insecure_cookies").MustBool(false)
-	port, err := strconv.Atoi(os.Getenv("PORT"))
-	if err != nil {
-		port = cfg.Section("server").Key("port").MustInt()
-	}
-
-	basePathEnv, basePathEnvExists := os.LookupEnv("WAKAPI_BASE_PATH")
-	basePath := cfg.Section("server").Key("base_path").MustString("/")
-	if basePathEnvExists {
-		basePath = basePathEnv
-	}
-	if strings.HasSuffix(basePath, "/") {
-		basePath = basePath[:len(basePath)-1]
-	}
-
-	cleanUp := cfg.Section("app").Key("cleanup").MustBool(false)
-
-	// Read custom languages
-	customLangs := make(map[string]string)
-	languageKeys := cfg.Section("languages").Keys()
-	for _, k := range languageKeys {
-		customLangs[k.Name()] = k.MustString("unknown")
-	}
-
-	// Read language colors
-	// Source: https://raw.githubusercontent.com/ozh/github-colors/master/colors.json
-	var colors = make(map[string]string)
-	var rawColors map[string]struct {
-		Color string `json:"color"`
-		Url   string `json:"url"`
-	}
-
-	data, err := ioutil.ReadFile("data/colors.json")
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	if err := json.Unmarshal(data, &rawColors); err != nil {
-		log.Fatal(err)
-	}
-
-	for k, v := range rawColors {
-		colors[strings.ToLower(k)] = v.Color
-	}
-
-	// TODO: Read keys from env, so that users are not logged out every time the server is restarted
-	secureCookie := securecookie.New(
-		securecookie.GenerateRandomKey(64),
-		securecookie.GenerateRandomKey(32),
-	)
-
-	return &Config{
-		Env:             env,
-		Version:         version,
-		Port:            port,
-		Addr:            addr,
-		BasePath:        basePath,
-		DbHost:          dbHost,
-		DbPort:          uint(dbPort),
-		DbUser:          dbUser,
-		DbPassword:      dbPassword,
-		DbName:          dbName,
-		DbDialect:       dbType,
-		DbMaxConn:       dbMaxConn,
-		CleanUp:         cleanUp,
-		InsecureCookies: insecureCookies,
-		SecureCookie:    secureCookie,
-		PasswordSalt:    passwordSalt,
-		CustomLanguages: customLangs,
-		LanguageColors:  colors,
-	}
-}
--- a/models/filters.go
+++ b/models/filters.go
@ -0,0 +1,67 @@
+package models
+
+type Filters struct {
+	Project  string
+	OS       string
+	Language string
+	Editor   string
+	Machine  string
+}
+
+type FilterElement struct {
+	Type uint8
+	Key  string
+}
+
+func NewFiltersWith(entity uint8, key string) *Filters {
+	switch entity {
+	case SummaryProject:
+		return &Filters{Project: key}
+	case SummaryOS:
+		return &Filters{OS: key}
+	case SummaryLanguage:
+		return &Filters{Language: key}
+	case SummaryEditor:
+		return &Filters{Editor: key}
+	case SummaryMachine:
+		return &Filters{Machine: key}
+	}
+	return &Filters{}
+}
+
+func (f *Filters) First() (bool, uint8, string) {
+	if f.Project != "" {
+		return true, SummaryProject, f.Project
+	} else if f.OS != "" {
+		return true, SummaryOS, f.OS
+	} else if f.Language != "" {
+		return true, SummaryLanguage, f.Language
+	} else if f.Editor != "" {
+		return true, SummaryEditor, f.Editor
+	} else if f.Machine != "" {
+		return true, SummaryMachine, f.Machine
+	}
+	return false, 0, ""
+}
+
+func (f *Filters) All() []*FilterElement {
+	all := make([]*FilterElement, 0)
+
+	if f.Project != "" {
+		all = append(all, &FilterElement{Type: SummaryProject, Key: f.Project})
+	}
+	if f.Editor != "" {
+		all = append(all, &FilterElement{Type: SummaryEditor, Key: f.Editor})
+	}
+	if f.Language != "" {
+		all = append(all, &FilterElement{Type: SummaryLanguage, Key: f.Language})
+	}
+	if f.Machine != "" {
+		all = append(all, &FilterElement{Type: SummaryMachine, Key: f.Machine})
+	}
+	if f.OS != "" {
+		all = append(all, &FilterElement{Type: SummaryOS, Key: f.OS})
+	}
+
+	return all
+}
--- a/models/heartbeat.go
+++ b/models/heartbeat.go
@ -7,7 +7,7 @@ import (

 type Heartbeat struct {
 	ID              uint       `gorm:"primary_key"`
-	User            *User      `json:"-" gorm:"not null"`
+	User            *User      `json:"-" gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 	UserID          string     `json:"-" gorm:"not null; index:idx_time_user"`
 	Entity          string     `json:"entity" gorm:"not null; index:idx_entity"`
 	Type            string     `json:"type"`
@ -19,27 +19,46 @@ type Heartbeat struct {
 	Editor          string     `json:"editor"`
 	OperatingSystem string     `json:"operating_system"`
 	Machine         string     `json:"machine"`
-	Time            CustomTime `json:"time" gorm:"type:timestamp(3); default:CURRENT_TIMESTAMP(3); index:idx_time,idx_time_user"`
+	Time            CustomTime `json:"time" gorm:"type:timestamp; default:CURRENT_TIMESTAMP; index:idx_time,idx_time_user"`
 	languageRegex   *regexp.Regexp
 }

 func (h *Heartbeat) Valid() bool {
-	return h.User != nil && h.UserID != "" && h.Time != CustomTime(time.Time{})
+	return h.User != nil && h.UserID != "" && h.User.ID == h.UserID && h.Time != CustomTime(time.Time{})
 }

-func (h *Heartbeat) Augment(customLangs map[string]string) {
-	if h.Language == "" {
-		if h.languageRegex == nil {
-			h.languageRegex = regexp.MustCompile(`^.+\.(.+)$`)
-		}
-		groups := h.languageRegex.FindAllStringSubmatch(h.Entity, -1)
-		if len(groups) == 0 || len(groups[0]) != 2 {
-			return
-		}
-		ending := groups[0][1]
-		if _, ok := customLangs[ending]; !ok {
-			return
-		}
-		h.Language, _ = customLangs[ending]
+func (h *Heartbeat) Augment(languageMappings map[string]string) {
+	if h.languageRegex == nil {
+		h.languageRegex = regexp.MustCompile(`^.+\.(.+)$`)
 	}
+	groups := h.languageRegex.FindAllStringSubmatch(h.Entity, -1)
+	if len(groups) == 0 || len(groups[0]) != 2 {
+		return
+	}
+	ending := groups[0][1]
+	if _, ok := languageMappings[ending]; !ok {
+		return
+	}
+	h.Language, _ = languageMappings[ending]
+}
+
+func (h *Heartbeat) GetKey(t uint8) (key string) {
+	switch t {
+	case SummaryProject:
+		key = h.Project
+	case SummaryEditor:
+		key = h.Editor
+	case SummaryLanguage:
+		key = h.Language
+	case SummaryOS:
+		key = h.OperatingSystem
+	case SummaryMachine:
+		key = h.Machine
+	}
+
+	if key == "" {
+		key = UnknownSummaryKey
+	}
+
+	return key
 }
--- a/models/heartbeat_test.go
+++ b/models/heartbeat_test.go
@ -0,0 +1,53 @@
+package models
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+	"time"
+)
+
+func TestHeartbeat_Valid_Success(t *testing.T) {
+	sut := &Heartbeat{
+		User: &User{
+			ID: "johndoe@example.org",
+		},
+		UserID: "johndoe@example.org",
+		Time:   CustomTime(time.Now()),
+	}
+	assert.True(t, sut.Valid())
+}
+
+func TestHeartbeat_Valid_MissingUser(t *testing.T) {
+	sut := &Heartbeat{
+		Time: CustomTime(time.Now()),
+	}
+	assert.False(t, sut.Valid())
+}
+
+func TestHeartbeat_Augment(t *testing.T) {
+	testMappings := map[string]string{
+		"py": "Python3",
+	}
+
+	sut := &Heartbeat{
+		Entity:   "~/dev/file.py",
+		Language: "Python",
+	}
+
+	sut.Augment(testMappings)
+
+	assert.Equal(t, "Python3", sut.Language)
+}
+
+func TestHeartbeat_GetKey(t *testing.T) {
+	sut := &Heartbeat{
+		Project: "wakapi",
+	}
+
+	assert.Equal(t, "wakapi", sut.GetKey(SummaryProject))
+	assert.Equal(t, UnknownSummaryKey, sut.GetKey(SummaryOS))
+	assert.Equal(t, UnknownSummaryKey, sut.GetKey(SummaryMachine))
+	assert.Equal(t, UnknownSummaryKey, sut.GetKey(SummaryLanguage))
+	assert.Equal(t, UnknownSummaryKey, sut.GetKey(SummaryEditor))
+	assert.Equal(t, UnknownSummaryKey, sut.GetKey(255))
+}
--- a/models/heartbeats.go
+++ b/models/heartbeats.go
@ -0,0 +1,38 @@
+package models
+
+import "sort"
+
+type Heartbeats []*Heartbeat
+
+func (h Heartbeats) Len() int {
+	return len(h)
+}
+
+func (h Heartbeats) Less(i, j int) bool {
+	return h[i].Time.T().Before(h[j].Time.T())
+}
+
+func (h Heartbeats) Swap(i, j int) {
+	h[i], h[j] = h[j], h[i]
+}
+
+func (h *Heartbeats) Sorted() *Heartbeats {
+	sort.Sort(h)
+	return h
+}
+
+func (h *Heartbeats) First() *Heartbeat {
+	// assumes slice to be sorted
+	if h.Len() == 0 {
+		return nil
+	}
+	return (*h)[0]
+}
+
+func (h *Heartbeats) Last() *Heartbeat {
+	// assumes slice to be sorted
+	if h.Len() == 0 {
+		return nil
+	}
+	return (*h)[h.Len()-1]
+}
--- a/models/language_mapping.go
+++ b/models/language_mapping.go
@ -0,0 +1,21 @@
+package models
+
+type LanguageMapping struct {
+	ID        uint   `json:"id" gorm:"primary_key"`
+	User      *User  `json:"-" gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
+	UserID    string `json:"-" gorm:"not null; index:idx_language_mapping_user; uniqueIndex:idx_language_mapping_composite"`
+	Extension string `json:"extension" gorm:"uniqueIndex:idx_language_mapping_composite; type:varchar(16)"`
+	Language  string `json:"language" gorm:"type:varchar(64)"`
+}
+
+func (m *LanguageMapping) IsValid() bool {
+	return m.validateLanguage() && m.validateExtension()
+}
+
+func (m *LanguageMapping) validateLanguage() bool {
+	return len(m.Language) >= 1
+}
+
+func (m *LanguageMapping) validateExtension() bool {
+	return len(m.Extension) >= 1
+}
--- a/models/models.go
+++ b/models/models.go
@ -1,5 +1,5 @@
 package models

 func init() {
-	SetConfig(readConfig())
+	// nothing no init here, yet
 }
--- a/models/shared.go
+++ b/models/shared.go
@ -4,7 +4,7 @@ import (
 	"database/sql/driver"
 	"errors"
 	"fmt"
-	"github.com/jinzhu/gorm"
+	"gorm.io/gorm"
 	"math"
 	"strconv"
 	"strings"
@ -24,43 +24,9 @@ type KeyStringValue struct {
 	Value string `gorm:"type:text"`
 }

-type Filters struct {
-	Project  string
-	OS       string
-	Language string
-	Editor   string
-	Machine  string
-}
-
-func NewFiltersWith(entity uint8, key string) *Filters {
-	switch entity {
-	case SummaryProject:
-		return &Filters{Project: key}
-	case SummaryOS:
-		return &Filters{Project: key}
-	case SummaryLanguage:
-		return &Filters{Project: key}
-	case SummaryEditor:
-		return &Filters{Project: key}
-	case SummaryMachine:
-		return &Filters{Project: key}
-	}
-	return &Filters{}
-}
-
-func (f *Filters) First() (bool, uint8, string) {
-	if f.Project != "" {
-		return true, SummaryProject, f.Project
-	} else if f.OS != "" {
-		return true, SummaryOS, f.OS
-	} else if f.Language != "" {
-		return true, SummaryLanguage, f.Language
-	} else if f.Editor != "" {
-		return true, SummaryEditor, f.Editor
-	} else if f.Machine != "" {
-		return true, SummaryMachine, f.Machine
-	}
-	return false, 0, ""
+type Interval struct {
+	Start time.Time
+	End   time.Time
 }

 type CustomTime time.Time
@ -76,28 +42,38 @@ func (j *CustomTime) UnmarshalJSON(b []byte) error {
 	return nil
 }

+// heartbeat timestamps arrive as strings for sqlite and as time.Time for postgres
 func (j *CustomTime) Scan(value interface{}) error {
+	var (
+		t   time.Time
+		err error
+	)
+
 	switch value.(type) {
 	case string:
-		t, err := time.Parse("2006-01-02 15:04:05-07:00", value.(string))
+		t, err = time.Parse("2006-01-02 15:04:05-07:00", value.(string))
 		if err != nil {
 			return errors.New(fmt.Sprintf("unsupported date time format: %s", value))
 		}
-		*j = CustomTime(t)
 	case int64:
-		*j = CustomTime(time.Unix(value.(int64), 0))
+		t = time.Unix(0, value.(int64))
 		break
 	case time.Time:
-		*j = CustomTime(value.(time.Time))
+		t = value.(time.Time)
 		break
 	default:
 		return errors.New(fmt.Sprintf("unsupported type: %T", value))
 	}
+
+	t = time.Unix(0, (t.UnixNano()/int64(time.Millisecond))*int64(time.Millisecond)) // round to millisecond precision
+	*j = CustomTime(t)
+
 	return nil
 }

 func (j CustomTime) Value() (driver.Value, error) {
-	return time.Time(j), nil
+	t := time.Unix(0, j.T().UnixNano()/int64(time.Millisecond)*int64(time.Millisecond)) // round to millisecond precision
+	return t, nil
 }

 func (j CustomTime) String() string {
@ -105,6 +81,10 @@ func (j CustomTime) String() string {
 	return t.Format("2006-01-02 15:04:05.000")
 }

-func (j CustomTime) Time() time.Time {
+func (j CustomTime) T() time.Time {
 	return time.Time(j)
 }
+
+func (j CustomTime) Valid() bool {
+	return j.T().Unix() >= 0
+}
--- a/models/summary.go
+++ b/models/summary.go
@ -1,6 +1,7 @@
 package models

 import (
+	"sort"
 	"time"
 )

@ -34,19 +35,23 @@ func Intervals() []string {
 const UnknownSummaryKey = "unknown"

 type Summary struct {
-	ID               uint           `json:"-" gorm:"primary_key"`
-	UserID           string         `json:"user_id" gorm:"not null; index:idx_time_summary_user"`
-	FromTime         time.Time      `json:"from" gorm:"not null; type:timestamp(3); default:CURRENT_TIMESTAMP(3); index:idx_time_summary_user"`
-	ToTime           time.Time      `json:"to" gorm:"not null; type:timestamp(3); default:CURRENT_TIMESTAMP(3); index:idx_time_summary_user"`
-	Projects         []*SummaryItem `json:"projects"`
-	Languages        []*SummaryItem `json:"languages"`
-	Editors          []*SummaryItem `json:"editors"`
-	OperatingSystems []*SummaryItem `json:"operating_systems"`
-	Machines         []*SummaryItem `json:"machines"`
+	ID               uint         `json:"-" gorm:"primary_key"`
+	User             *User        `json:"-" gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
+	UserID           string       `json:"user_id" gorm:"not null; index:idx_time_summary_user"`
+	FromTime         CustomTime   `json:"from" gorm:"not null; type:timestamp; default:CURRENT_TIMESTAMP; index:idx_time_summary_user"`
+	ToTime           CustomTime   `json:"to" gorm:"not null; type:timestamp; default:CURRENT_TIMESTAMP; index:idx_time_summary_user"`
+	Projects         SummaryItems `json:"projects" gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
+	Languages        SummaryItems `json:"languages" gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
+	Editors          SummaryItems `json:"editors" gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
+	OperatingSystems SummaryItems `json:"operating_systems" gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
+	Machines         SummaryItems `json:"machines" gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
 }

+type SummaryItems []*SummaryItem
+
 type SummaryItem struct {
 	ID        uint          `json:"-" gorm:"primary_key"`
+	Summary   *Summary      `json:"-" gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE"`
 	SummaryID uint          `json:"-"`
 	Type      uint8         `json:"-"`
 	Key       string        `json:"key"`
@ -73,16 +78,27 @@ type SummaryParams struct {
 	Recompute bool
 }

+type AliasResolver func(t uint8, k string) string
+
 func SummaryTypes() []uint8 {
 	return []uint8{SummaryProject, SummaryLanguage, SummaryEditor, SummaryOS, SummaryMachine}
 }

+func (s *Summary) Sorted() *Summary {
+	sort.Sort(sort.Reverse(s.Projects))
+	sort.Sort(sort.Reverse(s.Machines))
+	sort.Sort(sort.Reverse(s.OperatingSystems))
+	sort.Sort(sort.Reverse(s.Languages))
+	sort.Sort(sort.Reverse(s.Editors))
+	return s
+}
+
 func (s *Summary) Types() []uint8 {
 	return SummaryTypes()
 }

-func (s *Summary) MappedItems() map[uint8]*[]*SummaryItem {
-	return map[uint8]*[]*SummaryItem{
+func (s *Summary) MappedItems() map[uint8]*SummaryItems {
+	return map[uint8]*SummaryItems{
 		SummaryProject:  &s.Projects,
 		SummaryLanguage: &s.Languages,
 		SummaryEditor:   &s.Editors,
@ -147,31 +163,94 @@ func (s *Summary) TotalTime() time.Duration {
 	return timeSum * time.Second
 }

-func (s *Summary) TotalTimeBy(entityType uint8) time.Duration {
-	var timeSum time.Duration
-
+func (s *Summary) TotalTimeBy(entityType uint8) (timeSum time.Duration) {
 	mappedItems := s.MappedItems()
 	if items := mappedItems[entityType]; len(*items) > 0 {
 		for _, item := range *items {
-			timeSum += item.Total
+			timeSum = timeSum + item.Total*time.Second
 		}
 	}
-
-	return timeSum * time.Second
+	return timeSum
 }

-func (s *Summary) TotalTimeByKey(entityType uint8, key string) time.Duration {
-	var timeSum time.Duration
-
+func (s *Summary) TotalTimeByKey(entityType uint8, key string) (timeSum time.Duration) {
 	mappedItems := s.MappedItems()
 	if items := mappedItems[entityType]; len(*items) > 0 {
 		for _, item := range *items {
 			if item.Key != key {
 				continue
 			}
-			timeSum += item.Total
+			timeSum = timeSum + item.Total*time.Second
 		}
 	}
-
-	return timeSum * time.Second
+	return timeSum
+}
+
+func (s *Summary) TotalTimeByFilters(filter *Filters) (timeSum time.Duration) {
+	for _, f := range filter.All() {
+		timeSum += s.TotalTimeByKey(f.Type, f.Key)
+	}
+	return timeSum
+}
+
+func (s *Summary) WithResolvedAliases(resolve AliasResolver) *Summary {
+	processAliases := func(origin []*SummaryItem) []*SummaryItem {
+		target := make([]*SummaryItem, 0)
+
+		findItem := func(key string) *SummaryItem {
+			for _, item := range target {
+				if item.Key == key {
+					return item
+				}
+			}
+			return nil
+		}
+
+		for _, item := range origin {
+			// Add all "top-level" items, i.e. such without aliases
+			if key := resolve(item.Type, item.Key); key == item.Key {
+				target = append(target, item)
+			}
+		}
+
+		for _, item := range origin {
+			// Add all remaining projects and merge with their alias
+			if key := resolve(item.Type, item.Key); key != item.Key {
+				if targetItem := findItem(key); targetItem != nil {
+					targetItem.Total += item.Total
+				} else {
+					target = append(target, &SummaryItem{
+						ID:        item.ID,
+						SummaryID: item.SummaryID,
+						Type:      item.Type,
+						Key:       key,
+						Total:     item.Total,
+					})
+				}
+			}
+		}
+
+		return target
+	}
+
+	// Resolve aliases
+	s.Projects = processAliases(s.Projects)
+	s.Editors = processAliases(s.Editors)
+	s.Languages = processAliases(s.Languages)
+	s.OperatingSystems = processAliases(s.OperatingSystems)
+	s.Machines = processAliases(s.Machines)
+
+	return s
+}
+
+func (s SummaryItems) Len() int {
+	return len(s)
+}
+
+func (s SummaryItems) Less(i, j int) bool {
+	return s[i].Total < s[j].Total
+}
+
+func (s SummaryItems) Swap(i, j int) {
+	s[i], s[j] = s[j], s[i]
 }
--- a/models/summary_test.go
+++ b/models/summary_test.go
@ -0,0 +1,195 @@
+package models
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+	"time"
+)
+
+func TestSummary_FillUnknown(t *testing.T) {
+	testDuration := 10 * time.Minute
+
+	sut := &Summary{
+		Projects: []*SummaryItem{
+			{
+				Type: SummaryProject,
+				Key:  "wakapi",
+				// hack to work around the issue that the total time of a summary item is mistakenly represented in seconds
+				Total: testDuration / time.Second,
+			},
+		},
+	}
+
+	sut.FillUnknown()
+
+	itemLists := [][]*SummaryItem{
+		sut.Machines,
+		sut.OperatingSystems,
+		sut.Languages,
+		sut.Editors,
+	}
+	for _, l := range itemLists {
+		assert.Len(t, l, 1)
+		assert.Equal(t, UnknownSummaryKey, l[0].Key)
+		assert.Equal(t, testDuration, l[0].Total)
+	}
+}
+
+func TestSummary_TotalTimeBy(t *testing.T) {
+	testDuration1, testDuration2, testDuration3 := 10*time.Minute, 5*time.Minute, 20*time.Minute
+
+	sut := &Summary{
+		Projects: []*SummaryItem{
+			{
+				Type: SummaryProject,
+				Key:  "wakapi",
+				// hack to work around the issue that the total time of a summary item is mistakenly represented in seconds
+				Total: testDuration1 / time.Second,
+			},
+			{
+				Type:  SummaryProject,
+				Key:   "anchr",
+				Total: testDuration2 / time.Second,
+			},
+		},
+		Languages: []*SummaryItem{
+			{
+				Type:  SummaryLanguage,
+				Key:   "Go",
+				Total: testDuration3 / time.Second,
+			},
+		},
+	}
+
+	assert.Equal(t, testDuration1+testDuration2, sut.TotalTimeBy(SummaryProject))
+	assert.Equal(t, testDuration3, sut.TotalTimeBy(SummaryLanguage))
+	assert.Zero(t, sut.TotalTimeBy(SummaryEditor))
+	assert.Zero(t, sut.TotalTimeBy(SummaryMachine))
+	assert.Zero(t, sut.TotalTimeBy(SummaryOS))
+}
+
+func TestSummary_TotalTimeByFilters(t *testing.T) {
+	testDuration1, testDuration2, testDuration3 := 10*time.Minute, 5*time.Minute, 20*time.Minute
+
+	sut := &Summary{
+		Projects: []*SummaryItem{
+			{
+				Type: SummaryProject,
+				Key:  "wakapi",
+				// hack to work around the issue that the total time of a summary item is mistakenly represented in seconds
+				Total: testDuration1 / time.Second,
+			},
+			{
+				Type:  SummaryProject,
+				Key:   "anchr",
+				Total: testDuration2 / time.Second,
+			},
+		},
+		Languages: []*SummaryItem{
+			{
+				Type:  SummaryLanguage,
+				Key:   "Go",
+				Total: testDuration3 / time.Second,
+			},
+		},
+	}
+
+	filters1 := &Filters{Project: "wakapi"}
+	filters2 := &Filters{Project: "wakapi", Language: "Go"} // filters have OR logic
+	filters3 := &Filters{}
+
+	assert.Equal(t, testDuration1, sut.TotalTimeByFilters(filters1))
+	assert.Equal(t, testDuration1+testDuration3, sut.TotalTimeByFilters(filters2))
+	assert.Zero(t, sut.TotalTimeByFilters(filters3))
+}
+
+func TestSummary_WithResolvedAliases(t *testing.T) {
+	testDuration1, testDuration2, testDuration3, testDuration4 := 10*time.Minute, 5*time.Minute, 1*time.Minute, 20*time.Minute
+
+	var resolver AliasResolver = func(t uint8, k string) string {
+		switch t {
+		case SummaryProject:
+			switch k {
+			case "wakapi-mobile":
+				return "wakapi"
+			}
+		case SummaryLanguage:
+			switch k {
+			case "Java 8":
+				return "Java"
+			}
+		}
+		return k
+	}
+
+	sut := &Summary{
+		Projects: []*SummaryItem{
+			{
+				Type:  SummaryProject,
+				Key:   "wakapi",
+				Total: testDuration1 / time.Second,
+			},
+			{
+				Type:  SummaryProject,
+				Key:   "wakapi-mobile",
+				Total: testDuration2 / time.Second,
+			},
+			{
+				Type:  SummaryProject,
+				Key:   "anchr",
+				Total: testDuration3 / time.Second,
+			},
+		},
+		Languages: []*SummaryItem{
+			{
+				Type:  SummaryLanguage,
+				Key:   "Java 8",
+				Total: testDuration4 / time.Second,
+			},
+		},
+	}
+
+	sut = sut.WithResolvedAliases(resolver)
+
+	assert.Equal(t, testDuration1+testDuration2, sut.TotalTimeByKey(SummaryProject, "wakapi"))
+	assert.Zero(t, sut.TotalTimeByKey(SummaryProject, "wakapi-mobile"))
+	assert.Equal(t, testDuration3, sut.TotalTimeByKey(SummaryProject, "anchr"))
+	assert.Equal(t, testDuration4, sut.TotalTimeByKey(SummaryLanguage, "Java"))
+	assert.Zero(t, sut.TotalTimeByKey(SummaryLanguage, "wakapi"))
+	assert.Zero(t, sut.TotalTimeByKey(SummaryProject, "Java 8"))
+	assert.Len(t, sut.Projects, 2)
+	assert.Len(t, sut.Languages, 1)
+	assert.Empty(t, sut.Editors)
+	assert.Empty(t, sut.OperatingSystems)
+	assert.Empty(t, sut.Machines)
+}
+
+func TestSummaryItems_Sorted(t *testing.T) {
+	testDuration1, testDuration2, testDuration3 := 10*time.Minute, 5*time.Minute, 20*time.Minute
+
+	sut := &Summary{
+		Projects: []*SummaryItem{
+			{
+				Type:  SummaryProject,
+				Key:   "wakapi",
+				Total: testDuration1,
+			},
+			{
+				Type:  SummaryProject,
+				Key:   "anchr",
+				Total: testDuration2,
+			},
+			{
+				Type:  SummaryProject,
+				Key:   "anchr-mobile",
+				Total: testDuration3,
+			},
+		},
+	}
+
+	sut = sut.Sorted()
+
+	assert.Equal(t, testDuration3, sut.Projects[0].Total)
+	assert.Equal(t, testDuration1, sut.Projects[1].Total)
+	assert.Equal(t, testDuration2, sut.Projects[2].Total)
+}
--- a/models/user.go
+++ b/models/user.go
@ -6,7 +6,8 @@ type User struct {
 	Password       string     `json:"-"`
 	CreatedAt      CustomTime `gorm:"type:timestamp; default:CURRENT_TIMESTAMP"`
 	LastLoggedInAt CustomTime `gorm:"type:timestamp; default:CURRENT_TIMESTAMP"`
-	BadgesEnabled  bool       `json:"-" gorm:"not null; default:false; type: bool"`
+	BadgesEnabled  bool       `json:"-" gorm:"default:false; type:bool"`
+	WakatimeApiKey string     `json:"-"`
 }

 type Login struct {
@ -26,6 +27,11 @@ type CredentialsReset struct {
 	PasswordRepeat string `schema:"password_repeat"`
 }

+type TimeByUser struct {
+	User string
+	Time CustomTime
+}
+
 func (c *CredentialsReset) IsValid() bool {
 	return validatePassword(c.PasswordNew) &&
 		c.PasswordNew == c.PasswordRepeat
@ -38,7 +44,7 @@ func (s *Signup) IsValid() bool {
 }

 func validateUsername(username string) bool {
-	return len(username) >= 3 && username != "current"
+	return len(username) >= 1 && username != "current"
 }

 func validatePassword(password string) bool {
--- a/models/view/home.go
+++ b/models/view/home.go
@ -0,0 +1,18 @@
+package view
+
+type HomeViewModel struct {
+	Success    string
+	Error      string
+	TotalHours int
+	TotalUsers int
+}
+
+func (s *HomeViewModel) WithSuccess(m string) *HomeViewModel {
+	s.Success = m
+	return s
+}
+
+func (s *HomeViewModel) WithError(m string) *HomeViewModel {
+	s.Error = m
+	return s
+}
--- a/models/view/imprint.go
+++ b/models/view/imprint.go
@ -0,0 +1,22 @@
+package view
+
+type ImprintViewModel struct {
+	HtmlText string
+	Success  string
+	Error    string
+}
+
+func (s *ImprintViewModel) WithSuccess(m string) *ImprintViewModel {
+	s.Success = m
+	return s
+}
+
+func (s *ImprintViewModel) WithError(m string) *ImprintViewModel {
+	s.Error = m
+	return s
+}
+
+func (s *ImprintViewModel) WithHtmlText(t string) *ImprintViewModel {
+	s.HtmlText = t
+	return s
+}
--- a/models/view/login.go
+++ b/models/view/login.go
@ -0,0 +1,16 @@
+package view
+
+type LoginViewModel struct {
+	Success string
+	Error   string
+}
+
+func (s *LoginViewModel) WithSuccess(m string) *LoginViewModel {
+	s.Success = m
+	return s
+}
+
+func (s *LoginViewModel) WithError(m string) *LoginViewModel {
+	s.Error = m
+	return s
+}
--- a/models/view/settings.go
+++ b/models/view/settings.go
@ -0,0 +1,27 @@
+package view
+
+import "github.com/muety/wakapi/models"
+
+type SettingsViewModel struct {
+	User             *models.User
+	LanguageMappings []*models.LanguageMapping
+	Aliases          []*SettingsVMCombinedAlias
+	Success          string
+	Error            string
+}
+
+type SettingsVMCombinedAlias struct {
+	Key    string
+	Type   uint8
+	Values []string
+}
+
+func (s *SettingsViewModel) WithSuccess(m string) *SettingsViewModel {
+	s.Success = m
+	return s
+}
+
+func (s *SettingsViewModel) WithError(m string) *SettingsViewModel {
+	s.Error = m
+	return s
+}
--- a/models/view/summary.go
+++ b/models/view/summary.go
@ -0,0 +1,16 @@
+package view
+
+type SummaryViewModel struct {
+	Success string
+	Error   string
+}
+
+func (s *SummaryViewModel) WithSuccess(m string) *SummaryViewModel {
+	s.Success = m
+	return s
+}
+
+func (s *SummaryViewModel) WithError(m string) *SummaryViewModel {
+	s.Error = m
+	return s
+}
--- a/repositories/alias.go
+++ b/repositories/alias.go
@ -0,0 +1,89 @@
+package repositories
+
+import (
+	"errors"
+	"github.com/muety/wakapi/models"
+	"gorm.io/gorm"
+)
+
+type AliasRepository struct {
+	db *gorm.DB
+}
+
+func NewAliasRepository(db *gorm.DB) *AliasRepository {
+	return &AliasRepository{db: db}
+}
+
+func (r *AliasRepository) GetByUser(userId string) ([]*models.Alias, error) {
+	var aliases []*models.Alias
+	if err := r.db.
+		Where(&models.Alias{UserID: userId}).
+		Find(&aliases).Error; err != nil {
+		return nil, err
+	}
+	return aliases, nil
+}
+
+func (r *AliasRepository) GetByUserAndKey(userId, key string) ([]*models.Alias, error) {
+	var aliases []*models.Alias
+	if err := r.db.
+		Where(&models.Alias{
+			UserID: userId,
+			Key:    key,
+		}).
+		Find(&aliases).Error; err != nil {
+		return nil, err
+	}
+	return aliases, nil
+}
+
+func (r *AliasRepository) GetByUserAndKeyAndType(userId, key string, summaryType uint8) ([]*models.Alias, error) {
+	var aliases []*models.Alias
+	if err := r.db.
+		Where(&models.Alias{
+			UserID: userId,
+			Key:    key,
+			Type:   summaryType,
+		}).
+		Find(&aliases).Error; err != nil {
+		return nil, err
+	}
+	return aliases, nil
+}
+
+func (r *AliasRepository) GetByUserAndTypeAndValue(userId string, summaryType uint8, value string) (*models.Alias, error) {
+	alias := &models.Alias{}
+	if err := r.db.
+		Where(&models.Alias{
+			UserID: userId,
+			Type:   summaryType,
+			Value:  value,
+		}).
+		First(alias).Error; err != nil {
+		return nil, err
+	}
+	return alias, nil
+}
+
+func (r *AliasRepository) Insert(alias *models.Alias) (*models.Alias, error) {
+	if !alias.IsValid() {
+		return nil, errors.New("invalid alias")
+	}
+	result := r.db.Create(alias)
+	if err := result.Error; err != nil {
+		return nil, err
+	}
+	return alias, nil
+}
+
+func (r *AliasRepository) Delete(id uint) error {
+	return r.db.
+		Where("id = ?", id).
+		Delete(models.Alias{}).Error
+}
+
+func (r *AliasRepository) DeleteBatch(ids []uint) error {
+	return r.db.
+		Where("id IN ?", ids).
+		Delete(models.Alias{}).Error
+}
--- a/repositories/heartbeart.go
+++ b/repositories/heartbeart.go
@ -0,0 +1,54 @@
+package repositories
+
+import (
+	"github.com/muety/wakapi/models"
+	"gorm.io/gorm"
+	"time"
+)
+
+type HeartbeatRepository struct {
+	db *gorm.DB
+}
+
+func NewHeartbeatRepository(db *gorm.DB) *HeartbeatRepository {
+	return &HeartbeatRepository{db: db}
+}
+
+func (r *HeartbeatRepository) InsertBatch(heartbeats []*models.Heartbeat) error {
+	if err := r.db.Create(&heartbeats).Error; err != nil {
+		return err
+	}
+	return nil
+}
+
+func (r *HeartbeatRepository) GetAllWithin(from, to time.Time, user *models.User) ([]*models.Heartbeat, error) {
+	var heartbeats []*models.Heartbeat
+	if err := r.db.
+		Where(&models.Heartbeat{UserID: user.ID}).
+		Where("time >= ?", from).
+		Where("time < ?", to).
+		Order("time asc").
+		Find(&heartbeats).Error; err != nil {
+		return nil, err
+	}
+	return heartbeats, nil
+}
+
+func (r *HeartbeatRepository) GetFirstByUsers() ([]*models.TimeByUser, error) {
+	var result []*models.TimeByUser
+	r.db.Model(&models.User{}).
+		Select("users.id as user, min(time) as time").
+		Joins("left join heartbeats on users.id = heartbeats.user_id").
+		Group("user").
+		Scan(&result)
+	return result, nil
+}
+
+func (r *HeartbeatRepository) DeleteBefore(t time.Time) error {
+	if err := r.db.
+		Where("time <= ?", t).
+		Delete(models.Heartbeat{}).Error; err != nil {
+		return err
+	}
+	return nil
+}
--- a/repositories/key_value.go
+++ b/repositories/key_value.go
@ -0,0 +1,63 @@
+package repositories
+
+import (
+	"errors"
+	"github.com/muety/wakapi/models"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+	"log"
+)
+
+type KeyValueRepository struct {
+	db *gorm.DB
+}
+
+func NewKeyValueRepository(db *gorm.DB) *KeyValueRepository {
+	return &KeyValueRepository{db: db}
+}
+
+func (r *KeyValueRepository) GetString(key string) (*models.KeyStringValue, error) {
+	kv := &models.KeyStringValue{}
+	if err := r.db.
+		Where(&models.KeyStringValue{Key: key}).
+		First(&kv).Error; err != nil {
+		return nil, err
+	}
+
+	return kv, nil
+}
+
+func (r *KeyValueRepository) PutString(kv *models.KeyStringValue) error {
+	result := r.db.
+		Clauses(clause.OnConflict{
+			UpdateAll: true,
+		}).
+		Where(&models.KeyStringValue{Key: kv.Key}).
+		Assign(kv).
+		Create(kv)
+
+	if err := result.Error; err != nil {
+		return err
+	}
+
+	if result.RowsAffected != 1 {
+		log.Printf("warning: did not insert key '%s', maybe just updated?\n", kv.Key)
+	}
+
+	return nil
+}
+
+func (r *KeyValueRepository) DeleteString(key string) error {
+	result := r.db.
+		Delete(&models.KeyStringValue{}, &models.KeyStringValue{Key: key})
+
+	if err := result.Error; err != nil {
+		return err
+	}
+
+	if result.RowsAffected != 1 {
+		return errors.New("nothing deleted")
+	}
+
+	return nil
+}
--- a/repositories/language_mapping.go
+++ b/repositories/language_mapping.go
@ -0,0 +1,52 @@
+package repositories
+
+import (
+	"errors"
+	"github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"gorm.io/gorm"
+)
+
+type LanguageMappingRepository struct {
+	config *config.Config
+	db     *gorm.DB
+}
+
+func NewLanguageMappingRepository(db *gorm.DB) *LanguageMappingRepository {
+	return &LanguageMappingRepository{config: config.Get(), db: db}
+}
+
+func (r *LanguageMappingRepository) GetById(id uint) (*models.LanguageMapping, error) {
+	mapping := &models.LanguageMapping{}
+	if err := r.db.Where(&models.LanguageMapping{ID: id}).First(mapping).Error; err != nil {
+		return mapping, err
+	}
+	return mapping, nil
+}
+
+func (r *LanguageMappingRepository) GetByUser(userId string) ([]*models.LanguageMapping, error) {
+	var mappings []*models.LanguageMapping
+	if err := r.db.
+		Where(&models.LanguageMapping{UserID: userId}).
+		Find(&mappings).Error; err != nil {
+		return mappings, err
+	}
+	return mappings, nil
+}
+
+func (r *LanguageMappingRepository) Insert(mapping *models.LanguageMapping) (*models.LanguageMapping, error) {
+	if !mapping.IsValid() {
+		return nil, errors.New("invalid mapping")
+	}
+	result := r.db.Create(mapping)
+	if err := result.Error; err != nil {
+		return nil, err
+	}
+	return mapping, nil
+}
+
+func (r *LanguageMappingRepository) Delete(id uint) error {
+	return r.db.
+		Where("id = ?", id).
+		Delete(models.LanguageMapping{}).Error
+}
--- a/repositories/repositories.go
+++ b/repositories/repositories.go
@ -0,0 +1,52 @@
+package repositories
+
+import (
+	"github.com/muety/wakapi/models"
+	"time"
+)
+
+type IAliasRepository interface {
+	Insert(*models.Alias) (*models.Alias, error)
+	Delete(uint) error
+	DeleteBatch([]uint) error
+	GetByUser(string) ([]*models.Alias, error)
+	GetByUserAndKey(string, string) ([]*models.Alias, error)
+	GetByUserAndKeyAndType(string, string, uint8) ([]*models.Alias, error)
+	GetByUserAndTypeAndValue(string, uint8, string) (*models.Alias, error)
+}
+
+type IHeartbeatRepository interface {
+	InsertBatch([]*models.Heartbeat) error
+	GetAllWithin(time.Time, time.Time, *models.User) ([]*models.Heartbeat, error)
+	GetFirstByUsers() ([]*models.TimeByUser, error)
+	DeleteBefore(time.Time) error
+}
+
+type IKeyValueRepository interface {
+	GetString(string) (*models.KeyStringValue, error)
+	PutString(*models.KeyStringValue) error
+	DeleteString(string) error
+}
+
+type ILanguageMappingRepository interface {
+	GetById(uint) (*models.LanguageMapping, error)
+	GetByUser(string) ([]*models.LanguageMapping, error)
+	Insert(*models.LanguageMapping) (*models.LanguageMapping, error)
+	Delete(uint) error
+}
+
+type ISummaryRepository interface {
+	Insert(*models.Summary) error
+	GetByUserWithin(*models.User, time.Time, time.Time) ([]*models.Summary, error)
+	GetLastByUser() ([]*models.TimeByUser, error)
+	DeleteByUser(string) error
+}
+
+type IUserRepository interface {
+	GetById(string) (*models.User, error)
+	GetByApiKey(string) (*models.User, error)
+	GetAll() ([]*models.User, error)
+	InsertOrGet(*models.User) (*models.User, bool, error)
+	Update(*models.User) (*models.User, error)
+	UpdateField(*models.User, string, interface{}) (*models.User, error)
+}
--- a/repositories/summary.go
+++ b/repositories/summary.go
@ -0,0 +1,59 @@
+package repositories
+
+import (
+	"github.com/muety/wakapi/models"
+	"gorm.io/gorm"
+	"time"
+)
+
+type SummaryRepository struct {
+	db *gorm.DB
+}
+
+func NewSummaryRepository(db *gorm.DB) *SummaryRepository {
+	return &SummaryRepository{db: db}
+}
+
+func (r *SummaryRepository) Insert(summary *models.Summary) error {
+	if err := r.db.Create(summary).Error; err != nil {
+		return err
+	}
+	return nil
+}
+
+func (r *SummaryRepository) GetByUserWithin(user *models.User, from, to time.Time) ([]*models.Summary, error) {
+	var summaries []*models.Summary
+	if err := r.db.
+		Where(&models.Summary{UserID: user.ID}).
+		Where("from_time >= ?", from).
+		Where("to_time <= ?", to).
+		Order("from_time asc").
+		Preload("Projects", "type = ?", models.SummaryProject).
+		Preload("Languages", "type = ?", models.SummaryLanguage).
+		Preload("Editors", "type = ?", models.SummaryEditor).
+		Preload("OperatingSystems", "type = ?", models.SummaryOS).
+		Preload("Machines", "type = ?", models.SummaryMachine).
+		Find(&summaries).Error; err != nil {
+		return nil, err
+	}
+	return summaries, nil
+}
+
+func (r *SummaryRepository) GetLastByUser() ([]*models.TimeByUser, error) {
+	var result []*models.TimeByUser
+	r.db.Model(&models.User{}).
+		Select("users.id as user, max(to_time) as time").
+		Joins("left join summaries on users.id = summaries.user_id").
+		Group("user").
+		Scan(&result)
+	return result, nil
+}
+
+func (r *SummaryRepository) DeleteByUser(userId string) error {
+	if err := r.db.
+		Where("user_id = ?", userId).
+		Delete(models.Summary{}).Error; err != nil {
+		return err
+	}
+	return nil
+}
--- a/repositories/user.go
+++ b/repositories/user.go
@ -0,0 +1,80 @@
+package repositories
+
+import (
+	"errors"
+	"github.com/muety/wakapi/models"
+	"gorm.io/gorm"
+)
+
+type UserRepository struct {
+	db *gorm.DB
+}
+
+func NewUserRepository(db *gorm.DB) *UserRepository {
+	return &UserRepository{db: db}
+}
+
+func (r *UserRepository) GetById(userId string) (*models.User, error) {
+	u := &models.User{}
+	if err := r.db.Where(&models.User{ID: userId}).First(u).Error; err != nil {
+		return u, err
+	}
+	return u, nil
+}
+
+func (r *UserRepository) GetByApiKey(key string) (*models.User, error) {
+	u := &models.User{}
+	if err := r.db.Where(&models.User{ApiKey: key}).First(u).Error; err != nil {
+		return u, err
+	}
+	return u, nil
+}
+
+func (r *UserRepository) GetAll() ([]*models.User, error) {
+	var users []*models.User
+	if err := r.db.
+		Table("users").
+		Find(&users).Error; err != nil {
+		return nil, err
+	}
+	return users, nil
+}
+
+func (r *UserRepository) InsertOrGet(user *models.User) (*models.User, bool, error) {
+	result := r.db.FirstOrCreate(user, &models.User{ID: user.ID})
+	if err := result.Error; err != nil {
+		return nil, false, err
+	}
+
+	if result.RowsAffected == 1 {
+		return user, true, nil
+	}
+
+	return user, false, nil
+}
+
+func (r *UserRepository) Update(user *models.User) (*models.User, error) {
+	result := r.db.Model(user).Updates(user)
+	if err := result.Error; err != nil {
+		return nil, err
+	}
+
+	if result.RowsAffected != 1 {
+		return nil, errors.New("nothing updated")
+	}
+
+	return user, nil
+}
+
+func (r *UserRepository) UpdateField(user *models.User, key string, value interface{}) (*models.User, error) {
+	result := r.db.Model(user).Update(key, value)
+	if err := result.Error; err != nil {
+		return nil, err
+	}
+
+	if result.RowsAffected != 1 {
+		return nil, errors.New("nothing updated")
+	}
+
+	return user, nil
+}
--- a/routes/compat/shields/v1/badge.go
+++ b/routes/compat/shields/v1/badge.go
@ -2,12 +2,14 @@ package v1

 import (
 	"github.com/gorilla/mux"
+	conf "github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
 	v1 "github.com/muety/wakapi/models/compat/shields/v1"
 	"github.com/muety/wakapi/services"
 	"github.com/muety/wakapi/utils"
 	"net/http"
 	"regexp"
+	"strings"
 )

 const (
@ -16,16 +18,16 @@ const (
 )

 type BadgeHandler struct {
-	userSrvc    *services.UserService
-	summarySrvc *services.SummaryService
-	config      *models.Config
+	config      *conf.Config
+	userSrvc    services.IUserService
+	summarySrvc services.ISummaryService
 }

-func NewBadgeHandler(summaryService *services.SummaryService, userService *services.UserService) *BadgeHandler {
+func NewBadgeHandler(summaryService services.ISummaryService, userService services.IUserService) *BadgeHandler {
 	return &BadgeHandler{
 		summarySrvc: summaryService,
 		userSrvc:    userService,
-		config:      models.GetConfig(),
+		config:      conf.Get(),
 	}
 }

@ -33,6 +35,11 @@ func (h *BadgeHandler) ApiGet(w http.ResponseWriter, r *http.Request) {
 	intervalReg := regexp.MustCompile(intervalPattern)
 	entityFilterReg := regexp.MustCompile(entityFilterPattern)

+	if userAgent := r.Header.Get("user-agent"); !strings.HasPrefix(userAgent, "Shields.io/") && !h.config.IsDev() {
+		w.WriteHeader(http.StatusForbidden)
+		return
+	}
+
 	requestedUserId := mux.Vars(r)["user"]
 	user, err := h.userSrvc.GetUserById(requestedUserId)
 	if err != nil || !user.BadgesEnabled {
@ -50,18 +57,20 @@ func (h *BadgeHandler) ApiGet(w http.ResponseWriter, r *http.Request) {
 		interval = groups[1]
 	}

-	filters := &models.Filters{}
+	var filters *models.Filters
 	switch filterEntity {
 	case "project":
-		filters.Project = filterKey
+		filters = models.NewFiltersWith(models.SummaryProject, filterKey)
 	case "os":
-		filters.OS = filterKey
+		filters = models.NewFiltersWith(models.SummaryOS, filterKey)
 	case "editor":
-		filters.Editor = filterKey
+		filters = models.NewFiltersWith(models.SummaryEditor, filterKey)
 	case "language":
-		filters.Language = filterKey
+		filters = models.NewFiltersWith(models.SummaryLanguage, filterKey)
 	case "machine":
-		filters.Machine = filterKey
+		filters = models.NewFiltersWith(models.SummaryMachine, filterKey)
+	default:
+		filters = &models.Filters{}
 	}

 	summary, err, status := h.loadUserSummary(user, interval)
@ -87,7 +96,12 @@ func (h *BadgeHandler) loadUserSummary(user *models.User, interval string) (*mod
 		User: user,
 	}

-	summary, err := h.summarySrvc.Construct(summaryParams.From, summaryParams.To, summaryParams.User, summaryParams.Recompute)
+	var retrieveSummary services.SummaryRetriever = h.summarySrvc.Retrieve
+	if summaryParams.Recompute {
+		retrieveSummary = h.summarySrvc.Summarize
+	}
+
+	summary, err := h.summarySrvc.Aliased(summaryParams.From, summaryParams.To, summaryParams.User, retrieveSummary)
 	if err != nil {
 		return nil, err, http.StatusInternalServerError
 	}
--- a/routes/compat/wakatime/v1/all_time.go
+++ b/routes/compat/wakatime/v1/all_time.go
@ -2,6 +2,7 @@ package v1

 import (
 	"github.com/gorilla/mux"
+	conf "github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
 	v1 "github.com/muety/wakapi/models/compat/wakatime/v1"
 	"github.com/muety/wakapi/services"
@ -12,14 +13,14 @@ import (
 )

 type AllTimeHandler struct {
-	summarySrvc *services.SummaryService
-	config      *models.Config
+	config      *conf.Config
+	summarySrvc services.ISummaryService
 }

-func NewAllTimeHandler(summaryService *services.SummaryService) *AllTimeHandler {
+func NewAllTimeHandler(summaryService services.ISummaryService) *AllTimeHandler {
 	return &AllTimeHandler{
 		summarySrvc: summaryService,
-		config:      models.GetConfig(),
+		config:      conf.Get(),
 	}
 }

@ -42,7 +43,7 @@ func (h *AllTimeHandler) ApiGet(w http.ResponseWriter, r *http.Request) {
 		return
 	}

-	vm := v1.NewAllTimeFrom(summary, &models.Filters{Project: values.Get("project")})
+	vm := v1.NewAllTimeFrom(summary, models.NewFiltersWith(models.SummaryProject, values.Get("project")))
 	utils.RespondJSON(w, http.StatusOK, vm)
 }

@ -54,7 +55,12 @@ func (h *AllTimeHandler) loadUserSummary(user *models.User) (*models.Summary, er
 		Recompute: false,
 	}

-	summary, err := h.summarySrvc.Construct(summaryParams.From, summaryParams.To, summaryParams.User, summaryParams.Recompute) // 'to' is always constant
+	var retrieveSummary services.SummaryRetriever = h.summarySrvc.Retrieve
+	if summaryParams.Recompute {
+		retrieveSummary = h.summarySrvc.Summarize
+	}
+
+	summary, err := h.summarySrvc.Aliased(summaryParams.From, summaryParams.To, summaryParams.User, retrieveSummary)
 	if err != nil {
 		return nil, err, http.StatusInternalServerError
 	}
--- a/routes/compat/wakatime/v1/summaries.go
+++ b/routes/compat/wakatime/v1/summaries.go
@ -3,6 +3,7 @@ package v1
 import (
 	"errors"
 	"github.com/gorilla/mux"
+	conf "github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
 	v1 "github.com/muety/wakapi/models/compat/wakatime/v1"
 	"github.com/muety/wakapi/services"
@ -13,14 +14,14 @@ import (
 )

 type SummariesHandler struct {
-	summarySrvc *services.SummaryService
-	config      *models.Config
+	config      *conf.Config
+	summarySrvc services.ISummaryService
 }

-func NewSummariesHandler(summaryService *services.SummaryService) *SummariesHandler {
+func NewSummariesHandler(summaryService services.ISummaryService) *SummariesHandler {
 	return &SummariesHandler{
 		summarySrvc: summaryService,
-		config:      models.GetConfig(),
+		config:      conf.Get(),
 	}
 }

@ -85,7 +86,7 @@ func (h *SummariesHandler) loadUserSummaries(r *http.Request) ([]*models.Summary
 	summaries := make([]*models.Summary, len(intervals))

 	for i, interval := range intervals {
-		summary, err := h.summarySrvc.Construct(interval[0], interval[1], user, false) // 'to' is always constant
+		summary, err := h.summarySrvc.Aliased(interval[0], interval[1], user, h.summarySrvc.Retrieve)
 		if err != nil {
 			return nil, err, http.StatusInternalServerError
 		}
--- a/routes/health.go
+++ b/routes/health.go
@ -2,7 +2,7 @@ package routes

 import (
 	"fmt"
-	"github.com/jinzhu/gorm"
+	"gorm.io/gorm"
 	"net/http"
 )

@ -16,8 +16,10 @@ func NewHealthHandler(db *gorm.DB) *HealthHandler {

 func (h *HealthHandler) ApiGet(w http.ResponseWriter, r *http.Request) {
 	var dbStatus int
-	if err := h.db.DB().Ping(); err == nil {
-		dbStatus = 1
+	if sqlDb, err := h.db.DB(); err == nil {
+		if err := sqlDb.Ping(); err == nil {
+			dbStatus = 1
+		}
 	}

 	w.Header().Set("Content-Type", "text/plain")
--- a/routes/heartbeat.go
+++ b/routes/heartbeat.go
@ -2,6 +2,7 @@ package routes

 import (
 	"encoding/json"
+	conf "github.com/muety/wakapi/config"
 	"net/http"
 	"os"

@ -12,14 +13,16 @@ import (
 )

 type HeartbeatHandler struct {
-	config        *models.Config
-	heartbeatSrvc *services.HeartbeatService
+	config              *conf.Config
+	heartbeatSrvc       services.IHeartbeatService
+	languageMappingSrvc services.ILanguageMappingService
 }

-func NewHeartbeatHandler(heartbeatService *services.HeartbeatService) *HeartbeatHandler {
+func NewHeartbeatHandler(heartbeatService services.IHeartbeatService, languageMappingService services.ILanguageMappingService) *HeartbeatHandler {
 	return &HeartbeatHandler{
-		config:        models.GetConfig(),
-		heartbeatSrvc: heartbeatService,
+		config:              conf.Get(),
+		heartbeatSrvc:       heartbeatService,
+		languageMappingSrvc: languageMappingService,
 	}
 }

@ -46,7 +49,6 @@ func (h *HeartbeatHandler) ApiPost(w http.ResponseWriter, r *http.Request) {
 		hb.Machine = machineName
 		hb.User = user
 		hb.UserID = user.ID
-		hb.Augment(h.config.CustomLanguages)

 		if !hb.Valid() {
 			w.WriteHeader(http.StatusBadRequest)
--- a/routes/home.go
+++ b/routes/home.go
@ -0,0 +1,65 @@
+package routes
+
+import (
+	"fmt"
+	"github.com/gorilla/schema"
+	conf "github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/models/view"
+	"github.com/muety/wakapi/services"
+	"net/http"
+	"strconv"
+	"time"
+)
+
+type HomeHandler struct {
+	config       *conf.Config
+	keyValueSrvc services.IKeyValueService
+}
+
+var loginDecoder = schema.NewDecoder()
+var signupDecoder = schema.NewDecoder()
+
+func NewHomeHandler(keyValueService services.IKeyValueService) *HomeHandler {
+	return &HomeHandler{
+		config:       conf.Get(),
+		keyValueSrvc: keyValueService,
+	}
+}
+
+func (h *HomeHandler) GetIndex(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
+		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.Server.BasePath), http.StatusFound)
+		return
+	}
+
+	templates[conf.IndexTemplate].Execute(w, h.buildViewModel(r))
+}
+
+func (h *HomeHandler) buildViewModel(r *http.Request) *view.HomeViewModel {
+	var totalHours int
+	var totalUsers int
+
+	if t, err := h.keyValueSrvc.GetString(conf.KeyLatestTotalTime); err == nil && t != nil && t.Value != "" {
+		if d, err := time.ParseDuration(t.Value); err == nil {
+			totalHours = int(d.Hours())
+		}
+	}
+
+	if t, err := h.keyValueSrvc.GetString(conf.KeyLatestTotalUsers); err == nil && t != nil && t.Value != "" {
+		if d, err := strconv.Atoi(t.Value); err == nil {
+			totalUsers = d
+		}
+	}
+
+	return &view.HomeViewModel{
+		Success:    r.URL.Query().Get("success"),
+		Error:      r.URL.Query().Get("error"),
+		TotalHours: totalHours,
+		TotalUsers: totalUsers,
+	}
+}
--- a/routes/imprint.go
+++ b/routes/imprint.go
@ -0,0 +1,41 @@
+package routes
+
+import (
+	conf "github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/models/view"
+	"github.com/muety/wakapi/services"
+	"net/http"
+)
+
+type ImprintHandler struct {
+	config       *conf.Config
+	keyValueSrvc services.IKeyValueService
+}
+
+func NewImprintHandler(keyValueService services.IKeyValueService) *ImprintHandler {
+	return &ImprintHandler{
+		config:       conf.Get(),
+		keyValueSrvc: keyValueService,
+	}
+}
+
+func (h *ImprintHandler) GetImprint(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	text := "failed to load content"
+	if data, err := h.keyValueSrvc.GetString(models.ImprintKey); err == nil {
+		text = data.Value
+	}
+
+	templates[conf.ImprintTemplate].Execute(w, h.buildViewModel(r).WithHtmlText(text))
+}
+
+func (h *ImprintHandler) buildViewModel(r *http.Request) *view.ImprintViewModel {
+	return &view.ImprintViewModel{
+		Success: r.URL.Query().Get("success"),
+		Error:   r.URL.Query().Get("error"),
+	}
+}
--- a/routes/login.go
+++ b/routes/login.go
@ -0,0 +1,159 @@
+package routes
+
+import (
+	"fmt"
+	conf "github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/middlewares"
+	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/models/view"
+	"github.com/muety/wakapi/services"
+	"net/http"
+	"time"
+)
+
+type LoginHandler struct {
+	config   *conf.Config
+	userSrvc services.IUserService
+}
+
+func NewLoginHandler(userService services.IUserService) *LoginHandler {
+	return &LoginHandler{
+		config:   conf.Get(),
+		userSrvc: userService,
+	}
+}
+
+func (h *LoginHandler) GetIndex(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
+		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.Server.BasePath), http.StatusFound)
+		return
+	}
+
+	templates[conf.LoginTemplate].Execute(w, h.buildViewModel(r))
+}
+
+func (h *LoginHandler) PostLogin(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
+		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.Server.BasePath), http.StatusFound)
+		return
+	}
+
+	var login models.Login
+	if err := r.ParseForm(); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		templates[conf.LoginTemplate].Execute(w, h.buildViewModel(r).WithError("missing parameters"))
+		return
+	}
+	if err := loginDecoder.Decode(&login, r.PostForm); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		templates[conf.LoginTemplate].Execute(w, h.buildViewModel(r).WithError("missing parameters"))
+		return
+	}
+
+	user, err := h.userSrvc.GetUserById(login.Username)
+	if err != nil {
+		w.WriteHeader(http.StatusNotFound)
+		templates[conf.LoginTemplate].Execute(w, h.buildViewModel(r).WithError("resource not found"))
+		return
+	}
+
+	// TODO: depending on middleware package here is a hack
+	if !middlewares.CheckAndMigratePassword(user, &login, h.config.Security.PasswordSalt, &h.userSrvc) {
+		w.WriteHeader(http.StatusUnauthorized)
+		templates[conf.LoginTemplate].Execute(w, h.buildViewModel(r).WithError("invalid credentials"))
+		return
+	}
+
+	encoded, err := h.config.Security.SecureCookie.Encode(models.AuthCookieKey, login)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.LoginTemplate].Execute(w, h.buildViewModel(r).WithError("internal server error"))
+		return
+	}
+
+	user.LastLoggedInAt = models.CustomTime(time.Now())
+	h.userSrvc.Update(user)
+
+	http.SetCookie(w, h.config.CreateCookie(models.AuthCookieKey, encoded, "/"))
+	http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.Server.BasePath), http.StatusFound)
+}
+
+func (h *LoginHandler) PostLogout(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	http.SetCookie(w, h.config.GetClearCookie(models.AuthCookieKey, "/"))
+	http.Redirect(w, r, fmt.Sprintf("%s/", h.config.Server.BasePath), http.StatusFound)
+}
+
+func (h *LoginHandler) GetSignup(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
+		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.Server.BasePath), http.StatusFound)
+		return
+	}
+
+	templates[conf.SignupTemplate].Execute(w, h.buildViewModel(r))
+}
+
+func (h *LoginHandler) PostSignup(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
+		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.Server.BasePath), http.StatusFound)
+		return
+	}
+
+	var signup models.Signup
+	if err := r.ParseForm(); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		templates[conf.SignupTemplate].Execute(w, h.buildViewModel(r).WithError("missing parameters"))
+		return
+	}
+	if err := signupDecoder.Decode(&signup, r.PostForm); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		templates[conf.SignupTemplate].Execute(w, h.buildViewModel(r).WithError("missing parameters"))
+		return
+	}
+
+	if !signup.IsValid() {
+		w.WriteHeader(http.StatusBadRequest)
+		templates[conf.SignupTemplate].Execute(w, h.buildViewModel(r).WithError("invalid parameters"))
+		return
+	}
+
+	_, created, err := h.userSrvc.CreateOrGet(&signup)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SignupTemplate].Execute(w, h.buildViewModel(r).WithError("failed to create new user"))
+		return
+	}
+	if !created {
+		w.WriteHeader(http.StatusConflict)
+		templates[conf.SignupTemplate].Execute(w, h.buildViewModel(r).WithError("user already existing"))
+		return
+	}
+
+	http.Redirect(w, r, fmt.Sprintf("%s/?success=%s", h.config.Server.BasePath, "account created successfully"), http.StatusFound)
+}
+
+func (h *LoginHandler) buildViewModel(r *http.Request) *view.LoginViewModel {
+	return &view.LoginViewModel{
+		Success: r.URL.Query().Get("success"),
+		Error:   r.URL.Query().Get("error"),
+	}
+}
--- a/routes/public.go
+++ b/routes/public.go
@ -1,179 +0,0 @@
-package routes
-
-import (
-	"fmt"
-	"github.com/gorilla/schema"
-	"github.com/muety/wakapi/middlewares"
-	"github.com/muety/wakapi/models"
-	"github.com/muety/wakapi/services"
-	"github.com/muety/wakapi/utils"
-	"net/http"
-	"net/url"
-	"time"
-)
-
-type IndexHandler struct {
-	config       *models.Config
-	userSrvc     *services.UserService
-	keyValueSrvc *services.KeyValueService
-}
-
-var loginDecoder = schema.NewDecoder()
-var signupDecoder = schema.NewDecoder()
-
-func NewIndexHandler(userService *services.UserService, keyValueService *services.KeyValueService) *IndexHandler {
-	return &IndexHandler{
-		config:       models.GetConfig(),
-		userSrvc:     userService,
-		keyValueSrvc: keyValueService,
-	}
-}
-
-func (h *IndexHandler) GetIndex(w http.ResponseWriter, r *http.Request) {
-	if h.config.IsDev() {
-		loadTemplates()
-	}
-
-	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
-		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.BasePath), http.StatusFound)
-		return
-	}
-
-	if handleAlerts(w, r, "") {
-		return
-	}
-
-	templates["index.tpl.html"].Execute(w, nil)
-}
-
-func (h *IndexHandler) GetImprint(w http.ResponseWriter, r *http.Request) {
-	if h.config.IsDev() {
-		loadTemplates()
-	}
-
-	text := "failed to load content"
-	if data, err := h.keyValueSrvc.GetString(models.ImprintKey); err == nil {
-		text = data.Value
-	}
-
-	templates["imprint.tpl.html"].Execute(w, &struct {
-		HtmlText string
-	}{HtmlText: text})
-}
-
-func (h *IndexHandler) PostLogin(w http.ResponseWriter, r *http.Request) {
-	if h.config.IsDev() {
-		loadTemplates()
-	}
-
-	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
-		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.BasePath), http.StatusFound)
-		return
-	}
-
-	var login models.Login
-	if err := r.ParseForm(); err != nil {
-		respondAlert(w, "missing parameters", "", "", http.StatusBadRequest)
-		return
-	}
-	if err := loginDecoder.Decode(&login, r.PostForm); err != nil {
-		respondAlert(w, "missing parameters", "", "", http.StatusBadRequest)
-		return
-	}
-
-	user, err := h.userSrvc.GetUserById(login.Username)
-	if err != nil {
-		respondAlert(w, "resource not found", "", "", http.StatusNotFound)
-		return
-	}
-
-	// TODO: depending on middleware package here is a hack
-	if !middlewares.CheckAndMigratePassword(user, &login, h.config.PasswordSalt, h.userSrvc) {
-		respondAlert(w, "invalid credentials", "", "", http.StatusUnauthorized)
-		return
-	}
-
-	encoded, err := h.config.SecureCookie.Encode(models.AuthCookieKey, login)
-	if err != nil {
-		respondAlert(w, "internal server error", "", "", http.StatusInternalServerError)
-		return
-	}
-
-	user.LastLoggedInAt = models.CustomTime(time.Now())
-	h.userSrvc.Update(user)
-
-	cookie := &http.Cookie{
-		Name:     models.AuthCookieKey,
-		Value:    encoded,
-		Path:     "/",
-		Secure:   !h.config.InsecureCookies,
-		HttpOnly: true,
-	}
-	http.SetCookie(w, cookie)
-	http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.BasePath), http.StatusFound)
-}
-
-func (h *IndexHandler) PostLogout(w http.ResponseWriter, r *http.Request) {
-	if h.config.IsDev() {
-		loadTemplates()
-	}
-
-	utils.ClearCookie(w, models.AuthCookieKey, !h.config.InsecureCookies)
-	http.Redirect(w, r, fmt.Sprintf("%s/", h.config.BasePath), http.StatusFound)
-}
-
-func (h *IndexHandler) GetSignup(w http.ResponseWriter, r *http.Request) {
-	if h.config.IsDev() {
-		loadTemplates()
-	}
-
-	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
-		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.BasePath), http.StatusFound)
-		return
-	}
-
-	if handleAlerts(w, r, "signup.tpl.html") {
-		return
-	}
-
-	templates["signup.tpl.html"].Execute(w, nil)
-}
-
-func (h *IndexHandler) PostSignup(w http.ResponseWriter, r *http.Request) {
-	if h.config.IsDev() {
-		loadTemplates()
-	}
-
-	if cookie, err := r.Cookie(models.AuthCookieKey); err == nil && cookie.Value != "" {
-		http.Redirect(w, r, fmt.Sprintf("%s/summary", h.config.BasePath), http.StatusFound)
-		return
-	}
-
-	var signup models.Signup
-	if err := r.ParseForm(); err != nil {
-		respondAlert(w, "missing parameters", "", "signup.tpl.html", http.StatusBadRequest)
-		return
-	}
-	if err := signupDecoder.Decode(&signup, r.PostForm); err != nil {
-		respondAlert(w, "missing parameters", "", "signup.tpl.html", http.StatusBadRequest)
-		return
-	}
-
-	if !signup.IsValid() {
-		respondAlert(w, "invalid parameters", "", "signup.tpl.html", http.StatusBadRequest)
-		return
-	}
-
-	_, created, err := h.userSrvc.CreateOrGet(&signup)
-	if err != nil {
-		respondAlert(w, "failed to create new user", "", "signup.tpl.html", http.StatusInternalServerError)
-		return
-	}
-	if !created {
-		respondAlert(w, "user already existing", "", "signup.tpl.html", http.StatusConflict)
-		return
-	}
-
-	msg := url.QueryEscape("account created successfully")
-	http.Redirect(w, r, fmt.Sprintf("%s/?success=%s", h.config.BasePath, msg), http.StatusFound)
-}
--- a/routes/routes.go
+++ b/routes/routes.go
@ -2,33 +2,42 @@ package routes

 import (
 	"fmt"
+	"github.com/markbates/pkger"
+	"github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
 	"github.com/muety/wakapi/utils"
 	"html/template"
 	"io/ioutil"
-	"net/http"
 	"path"
 	"strings"
 )

-func init() {
+func Init() {
 	loadTemplates()
 }

 var templates map[string]*template.Template

 func loadTemplates() {
-	tplPath := "views"
+	const tplPath = "/views"
 	tpls := template.New("").Funcs(template.FuncMap{
-		"json":       utils.Json,
-		"date":       utils.FormatDateHuman,
-		"title":      strings.Title,
-		"capitalize": utils.Capitalize,
+		"json":        utils.Json,
+		"date":        utils.FormatDateHuman,
+		"title":       strings.Title,
+		"join":        strings.Join,
+		"add":         utils.Add,
+		"capitalize":  utils.Capitalize,
+		"toRunes":     utils.ToRunes,
+		"entityTypes": models.SummaryTypes,
+		"typeName":    typeName,
 		"getBasePath": func() string {
-			return models.GetConfig().BasePath
+			return config.Get().Server.BasePath
 		},
 		"getVersion": func() string {
-			return models.GetConfig().Version
+			return config.Get().Version
+		},
+		"getDbType": func() string {
+			return strings.ToLower(config.Get().Db.Type)
 		},
 		"htmlSafe": func(html string) template.HTML {
 			return template.HTML(html)
@ -36,7 +45,12 @@ func loadTemplates() {
 	})
 	templates = make(map[string]*template.Template)

-	files, err := ioutil.ReadDir(tplPath)
+	dir, err := pkger.Open(tplPath)
+	if err != nil {
+		panic(err)
+	}
+	defer dir.Close()
+	files, err := dir.Readdir(0)
 	if err != nil {
 		panic(err)
 	}
@ -47,7 +61,17 @@ func loadTemplates() {
 			continue
 		}

-		tpl, err := tpls.New(tplName).ParseFiles(fmt.Sprintf("%s/%s", tplPath, tplName))
+		templateFile, err := pkger.Open(fmt.Sprintf("%s/%s", tplPath, tplName))
+		if err != nil {
+			panic(err)
+		}
+		defer templateFile.Close()
+		template, err := ioutil.ReadAll(templateFile)
+		if err != nil {
+			panic(err)
+		}
+
+		tpl, err := tpls.New(tplName).Parse(string(template))
 		if err != nil {
 			panic(err)
 		}
@ -56,32 +80,21 @@ func loadTemplates() {
 	}
 }

-func respondAlert(w http.ResponseWriter, error, success, tplName string, status int) {
-	w.WriteHeader(status)
-	if tplName == "" {
-		tplName = "index.tpl.html"
+func typeName(t uint8) string {
+	if t == models.SummaryProject {
+		return "project"
 	}
-	templates[tplName].Execute(w, struct {
-		Error   string
-		Success string
-	}{Error: error, Success: success})
-}
-
-// TODO: do better
-func handleAlerts(w http.ResponseWriter, r *http.Request, tplName string) bool {
-	if err := r.URL.Query().Get("error"); err != "" {
-		if err == "unauthorized" {
-			respondAlert(w, err, "", tplName, http.StatusUnauthorized)
-		} else {
-			respondAlert(w, err, "", tplName, http.StatusInternalServerError)
-		}
-		return true
-	}
-
-	if success := r.URL.Query().Get("success"); success != "" {
-		respondAlert(w, "", success, tplName, http.StatusOK)
-		return true
-	}
-
-	return false
+	if t == models.SummaryLanguage {
+		return "language"
+	}
+	if t == models.SummaryEditor {
+		return "editor"
+	}
+	if t == models.SummaryOS {
+		return "operating system"
+	}
+	if t == models.SummaryMachine {
+		return "machine"
+	}
+	return "unknown"
 }
--- a/routes/settings.go
+++ b/routes/settings.go
@ -3,24 +3,35 @@ package routes
 import (
 	"fmt"
 	"github.com/gorilla/schema"
+	conf "github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/models/view"
 	"github.com/muety/wakapi/services"
 	"github.com/muety/wakapi/utils"
+	"log"
 	"net/http"
-	"net/url"
+	"strconv"
 )

 type SettingsHandler struct {
-	config   *models.Config
-	userSrvc *services.UserService
+	config              *conf.Config
+	userSrvc            services.IUserService
+	summarySrvc         services.ISummaryService
+	aliasSrvc           services.IAliasService
+	aggregationSrvc     services.IAggregationService
+	languageMappingSrvc services.ILanguageMappingService
 }

 var credentialsDecoder = schema.NewDecoder()

-func NewSettingsHandler(userService *services.UserService) *SettingsHandler {
+func NewSettingsHandler(userService services.IUserService, summaryService services.ISummaryService, aliasService services.IAliasService, aggregationService services.IAggregationService, languageMappingService services.ILanguageMappingService) *SettingsHandler {
 	return &SettingsHandler{
-		config:   models.GetConfig(),
-		userSrvc: userService,
+		config:              conf.Get(),
+		summarySrvc:         summaryService,
+		aliasSrvc:           aliasService,
+		aggregationSrvc:     aggregationService,
+		languageMappingSrvc: languageMappingService,
+		userSrvc:            userService,
 	}
 }

@ -29,16 +40,7 @@ func (h *SettingsHandler) GetIndex(w http.ResponseWriter, r *http.Request) {
 		loadTemplates()
 	}

-	user := r.Context().Value(models.UserKey).(*models.User)
-	data := map[string]interface{}{
-		"User": user,
-	}
-
-	// TODO: when alerts are present, other data will not be passed to the template
-	if handleAlerts(w, r, "settings.tpl.html") {
-		return
-	}
-	templates["settings.tpl.html"].Execute(w, data)
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r))
 }

 func (h *SettingsHandler) PostCredentials(w http.ResponseWriter, r *http.Request) {
@ -50,32 +52,40 @@ func (h *SettingsHandler) PostCredentials(w http.ResponseWriter, r *http.Request

 	var credentials models.CredentialsReset
 	if err := r.ParseForm(); err != nil {
-		respondAlert(w, "missing parameters", "", "settings.tpl.html", http.StatusBadRequest)
+		w.WriteHeader(http.StatusBadRequest)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("missing parameters"))
 		return
 	}
 	if err := credentialsDecoder.Decode(&credentials, r.PostForm); err != nil {
-		respondAlert(w, "missing parameters", "", "settings.tpl.html", http.StatusBadRequest)
+		w.WriteHeader(http.StatusBadRequest)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("missing parameters"))
 		return
 	}

-	if !utils.CheckPasswordBcrypt(user, credentials.PasswordOld, h.config.PasswordSalt) {
-		respondAlert(w, "invalid credentials", "", "settings.tpl.html", http.StatusUnauthorized)
+	if !utils.CompareBcrypt(user.Password, credentials.PasswordOld, h.config.Security.PasswordSalt) {
+		w.WriteHeader(http.StatusUnauthorized)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("invalid credentials"))
 		return
 	}

 	if !credentials.IsValid() {
-		respondAlert(w, "invalid parameters", "", "settings.tpl.html", http.StatusBadRequest)
+		w.WriteHeader(http.StatusBadRequest)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("invalid parameters"))
 		return
 	}

 	user.Password = credentials.PasswordNew
-	if err := utils.HashPassword(user, h.config.PasswordSalt); err != nil {
-		respondAlert(w, "internal server error", "", "settings.tpl.html", http.StatusInternalServerError)
+	if hash, err := utils.HashBcrypt(user.Password, h.config.Security.PasswordSalt); err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("internal server error"))
 		return
+	} else {
+		user.Password = hash
 	}

 	if _, err := h.userSrvc.Update(user); err != nil {
-		respondAlert(w, "internal server error", "", "settings.tpl.html", http.StatusInternalServerError)
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("internal server error"))
 		return
 	}

@ -83,23 +93,128 @@ func (h *SettingsHandler) PostCredentials(w http.ResponseWriter, r *http.Request
 		Username: user.ID,
 		Password: user.Password,
 	}
-	encoded, err := h.config.SecureCookie.Encode(models.AuthCookieKey, login)
+	encoded, err := h.config.Security.SecureCookie.Encode(models.AuthCookieKey, login)
 	if err != nil {
-		respondAlert(w, "internal server error", "", "settings.tpl.html", http.StatusInternalServerError)
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("internal server error"))
 		return
 	}

-	cookie := &http.Cookie{
-		Name:     models.AuthCookieKey,
-		Value:    encoded,
-		Path:     "/",
-		Secure:   !h.config.InsecureCookies,
-		HttpOnly: true,
-	}
-	http.SetCookie(w, cookie)
+	http.SetCookie(w, h.config.CreateCookie(models.AuthCookieKey, encoded, "/"))
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithSuccess("password was updated successfully"))
+}

-	msg := url.QueryEscape("password was updated successfully")
-	http.Redirect(w, r, fmt.Sprintf("%s/settings?success=%s", h.config.BasePath, msg), http.StatusFound)
+func (h *SettingsHandler) DeleteLanguageMapping(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	user := r.Context().Value(models.UserKey).(*models.User)
+	id, err := strconv.Atoi(r.PostFormValue("mapping_id"))
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("could not delete mapping"))
+		return
+	}
+
+	if mapping, err := h.languageMappingSrvc.GetById(uint(id)); err != nil || mapping == nil {
+		w.WriteHeader(http.StatusNotFound)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("mapping not found"))
+		return
+	} else if mapping.UserID != user.ID {
+		w.WriteHeader(http.StatusForbidden)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("not allowed to delete mapping"))
+		return
+	}
+
+	if err := h.languageMappingSrvc.Delete(&models.LanguageMapping{ID: uint(id)}); err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("could not delete mapping"))
+		return
+	}
+
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithSuccess("mapping deleted successfully"))
+}
+
+func (h *SettingsHandler) PostLanguageMapping(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+	user := r.Context().Value(models.UserKey).(*models.User)
+	extension := r.PostFormValue("extension")
+	language := r.PostFormValue("language")
+
+	if extension[0] == '.' {
+		extension = extension[1:]
+	}
+
+	mapping := &models.LanguageMapping{
+		UserID:    user.ID,
+		Extension: extension,
+		Language:  language,
+	}
+
+	if _, err := h.languageMappingSrvc.Create(mapping); err != nil {
+		w.WriteHeader(http.StatusConflict)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("mapping already exists"))
+		return
+	}
+
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithSuccess("mapping added successfully"))
+}
+
+func (h *SettingsHandler) DeleteAlias(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	user := r.Context().Value(models.UserKey).(*models.User)
+	aliasKey := r.PostFormValue("key")
+	aliasType, err := strconv.Atoi(r.PostFormValue("type"))
+	if err != nil {
+		aliasType = 99 // nothing will be found later on
+	}
+
+	if aliases, err := h.aliasSrvc.GetByUserAndKeyAndType(user.ID, aliasKey, uint8(aliasType)); err != nil {
+		w.WriteHeader(http.StatusNotFound)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("aliases not found"))
+		return
+	} else if err := h.aliasSrvc.DeleteMulti(aliases); err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("could not delete aliases"))
+		return
+	}
+
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithSuccess("aliases deleted successfully"))
+}
+
+func (h *SettingsHandler) PostAlias(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+	user := r.Context().Value(models.UserKey).(*models.User)
+	aliasKey := r.PostFormValue("key")
+	aliasValue := r.PostFormValue("value")
+	aliasType, err := strconv.Atoi(r.PostFormValue("type"))
+	if err != nil {
+		aliasType = 99 // Alias.IsValid() will return false later on
+	}
+
+	alias := &models.Alias{
+		UserID: user.ID,
+		Key:    aliasKey,
+		Value:  aliasValue,
+		Type:   uint8(aliasType),
+	}
+
+	if _, err := h.aliasSrvc.Create(alias); err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		// TODO: distinguish between bad request, conflict and server error
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("invalid input"))
+		return
+	}
+
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithSuccess("alias added successfully"))
 }

 func (h *SettingsHandler) PostResetApiKey(w http.ResponseWriter, r *http.Request) {
@ -109,12 +224,28 @@ func (h *SettingsHandler) PostResetApiKey(w http.ResponseWriter, r *http.Request

 	user := r.Context().Value(models.UserKey).(*models.User)
 	if _, err := h.userSrvc.ResetApiKey(user); err != nil {
-		respondAlert(w, "internal server error", "", "settings.tpl.html", http.StatusInternalServerError)
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("internal server error"))
 		return
 	}

-	msg := url.QueryEscape(fmt.Sprintf("your new api key is: %s", user.ApiKey))
-	http.Redirect(w, r, fmt.Sprintf("%s/settings?success=%s", h.config.BasePath, msg), http.StatusFound)
+	msg := fmt.Sprintf("your new api key is: %s", user.ApiKey)
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithSuccess(msg))
+}
+
+func (h *SettingsHandler) PostSetWakatimeApiKey(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	user := r.Context().Value(models.UserKey).(*models.User)
+	if _, err := h.userSrvc.SetWakatimeApiKey(user, r.PostFormValue("api_key")); err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("internal server error"))
+		return
+	}
+
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithSuccess("Wakatime API Key updated successfully"))
 }

 func (h *SettingsHandler) PostToggleBadges(w http.ResponseWriter, r *http.Request) {
@ -123,11 +254,72 @@ func (h *SettingsHandler) PostToggleBadges(w http.ResponseWriter, r *http.Reques
 	}

 	user := r.Context().Value(models.UserKey).(*models.User)
-
 	if _, err := h.userSrvc.ToggleBadges(user); err != nil {
-		respondAlert(w, "internal server error", "", "settings.tpl.html", http.StatusInternalServerError)
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("internal server error"))
 		return
 	}

-	http.Redirect(w, r, fmt.Sprintf("%s/settings", h.config.BasePath), http.StatusFound)
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r))
+}
+
+func (h *SettingsHandler) PostRegenerateSummaries(w http.ResponseWriter, r *http.Request) {
+	if h.config.IsDev() {
+		loadTemplates()
+	}
+
+	user := r.Context().Value(models.UserKey).(*models.User)
+
+	log.Printf("clearing summaries for user '%s'\n", user.ID)
+	if err := h.summarySrvc.DeleteByUser(user.ID); err != nil {
+		log.Printf("failed to clear summaries: %v\n", err)
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("failed to delete old summaries"))
+		return
+	}
+
+	if err := h.aggregationSrvc.Run(map[string]bool{user.ID: true}); err != nil {
+		log.Printf("failed to regenerate summaries: %v\n", err)
+		w.WriteHeader(http.StatusInternalServerError)
+		templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithError("failed to generate aggregations"))
+		return
+	}
+
+	templates[conf.SettingsTemplate].Execute(w, h.buildViewModel(r).WithSuccess("summaries are being regenerated – this may take a few seconds"))
+}
+
+func (h *SettingsHandler) buildViewModel(r *http.Request) *view.SettingsViewModel {
+	user := r.Context().Value(models.UserKey).(*models.User)
+	mappings, _ := h.languageMappingSrvc.GetByUser(user.ID)
+	aliases, _ := h.aliasSrvc.GetByUser(user.ID)
+	aliasMap := make(map[string][]*models.Alias)
+	for _, a := range aliases {
+		k := fmt.Sprintf("%s_%d", a.Key, a.Type)
+		if _, ok := aliasMap[k]; !ok {
+			aliasMap[k] = []*models.Alias{a}
+		} else {
+			aliasMap[k] = append(aliasMap[k], a)
+		}
+	}
+
+	combinedAliases := make([]*view.SettingsVMCombinedAlias, 0)
+	for _, l := range aliasMap {
+		ca := &view.SettingsVMCombinedAlias{
+			Key:    l[0].Key,
+			Type:   l[0].Type,
+			Values: make([]string, len(l)),
+		}
+		for i, a := range l {
+			ca.Values[i] = a.Value
+		}
+		combinedAliases = append(combinedAliases, ca)
+	}
+
+	return &view.SettingsViewModel{
+		User:             user,
+		LanguageMappings: mappings,
+		Aliases:          combinedAliases,
+		Success:          r.URL.Query().Get("success"),
+		Error:            r.URL.Query().Get("error"),
+	}
 }
--- a/routes/summary.go
+++ b/routes/summary.go
@ -1,21 +1,23 @@
 package routes

 import (
+	conf "github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/models/view"
 	"github.com/muety/wakapi/services"
 	"github.com/muety/wakapi/utils"
 	"net/http"
 )

 type SummaryHandler struct {
-	summarySrvc *services.SummaryService
-	config      *models.Config
+	config      *conf.Config
+	summarySrvc services.ISummaryService
 }

-func NewSummaryHandler(summaryService *services.SummaryService) *SummaryHandler {
+func NewSummaryHandler(summaryService services.ISummaryService) *SummaryHandler {
 	return &SummaryHandler{
 		summarySrvc: summaryService,
-		config:      models.GetConfig(),
+		config:      conf.Get(),
 	}
 }

@ -43,23 +45,25 @@ func (h *SummaryHandler) GetIndex(w http.ResponseWriter, r *http.Request) {

 	summary, err, status := h.loadUserSummary(r)
 	if err != nil {
-		respondAlert(w, err.Error(), "", "summary.tpl.html", status)
+		w.WriteHeader(status)
+		templates[conf.SummaryTemplate].Execute(w, h.buildViewModel(r).WithError(err.Error()))
 		return
 	}

 	user := r.Context().Value(models.UserKey).(*models.User)
 	if user == nil {
-		respondAlert(w, "unauthorized", "", "summary.tpl.html", http.StatusUnauthorized)
+		w.WriteHeader(http.StatusUnauthorized)
+		templates[conf.SummaryTemplate].Execute(w, h.buildViewModel(r).WithError("unauthorized"))
 		return
 	}

 	vm := models.SummaryViewModel{
 		Summary:        summary,
-		LanguageColors: utils.FilterLanguageColors(h.config.LanguageColors, summary),
+		LanguageColors: utils.FilterLanguageColors(h.config.App.GetLanguageColors(), summary),
 		ApiKey:         user.ApiKey,
 	}

-	templates["summary.tpl.html"].Execute(w, vm)
+	templates[conf.SummaryTemplate].Execute(w, vm)
 }

 func (h *SummaryHandler) loadUserSummary(r *http.Request) (*models.Summary, error, int) {
@ -68,10 +72,22 @@ func (h *SummaryHandler) loadUserSummary(r *http.Request) (*models.Summary, erro
 		return nil, err, http.StatusBadRequest
 	}

-	summary, err := h.summarySrvc.Construct(summaryParams.From, summaryParams.To, summaryParams.User, summaryParams.Recompute) // 'to' is always constant
+	var retrieveSummary services.SummaryRetriever = h.summarySrvc.Retrieve
+	if summaryParams.Recompute {
+		retrieveSummary = h.summarySrvc.Summarize
+	}
+
+	summary, err := h.summarySrvc.Aliased(summaryParams.From, summaryParams.To, summaryParams.User, retrieveSummary)
 	if err != nil {
 		return nil, err, http.StatusInternalServerError
 	}

 	return summary, nil, http.StatusOK
 }
+
+func (h *SummaryHandler) buildViewModel(r *http.Request) *view.SummaryViewModel {
+	return &view.SummaryViewModel{
+		Success: r.URL.Query().Get("success"),
+		Error:   r.URL.Query().Get("error"),
+	}
+}
--- a/scripts/docker_mysql.sh
+++ b/scripts/docker_mysql.sh
@ -0,0 +1,3 @@
+#!/bin/bash
+
+docker run -d -p 3306:3306 -e MYSQL_ROOT_PASSWORD=secretpassword -e MYSQL_DATABASE=wakapi_local -e MYSQL_USER=wakapi_user -e MYSQL_PASSWORD=wakapi --name wakapi-mysql mysql:5
--- a/scripts/docker_postgres.sh
+++ b/scripts/docker_postgres.sh
@ -0,0 +1,3 @@
+#!/bin/bash
+
+docker run -d -p 5432:5432 -e POSTGRES_DATABASE=wakapi_local -e POSTGRES_USER=wakapi_user -e POSTGRES_PASSWORD=wakapi --name wakapi-postgres postgres
--- a/scripts/push_sample_data.py
+++ b/scripts/push_sample_data.py
@ -1,15 +1,18 @@
 #!/usr/bin/python3
+
+import argparse
+import base64
 import random
 import string
 import sys
 from datetime import datetime, timedelta
-from typing import List
+from typing import List, Union

 import requests
+from tqdm import tqdm

-N_PROJECTS = 5
-N_PAST_HOURS = 24
-UA = 'wakatime/13.0.7 (Linux-4.15.0-91-generic-x86_64-with-glibc2.4) Python3.8.0.final.0 vscode/1.42.1 vscode-wakatime/4.0.0'
+MACHINE = "devmachine"
+UA = 'wakatime/13.0.7 (Linux-4.15.0-91-generic-x86_64-with-glibc2.4) Python3.8.0.final.0 generator/1.42.1 generator-wakatime/4.0.0'
 LANGUAGES = {
    'Go': 'go',
    'Java': 'java',
@ -36,23 +39,25 @@ class Heartbeat:
        self.is_write: bool = is_write
        self.branch: str = branch
        self.type: str = type
-        self.category: str = None
+        self.category: Union[str, None] = None


-def generate_data(n: int) -> List[Heartbeat]:
+def generate_data(n: int, n_projects: int = 5, n_past_hours: int = 24) -> List[Heartbeat]:
    data: List[Heartbeat] = []
    now: datetime = datetime.today()
-    projects: List[str] = [randomword(random.randint(5, 10)) for _ in range(5)]
+    projects: List[str] = [randomword(random.randint(5, 10)) for _ in range(n_projects)]
    languages: List[str] = list(LANGUAGES.keys())

-    for i in range(n):
+    for _ in range(n):
        p: str = random.choice(projects)
        l: str = random.choice(languages)
        f: str = randomword(random.randint(2, 8))
        delta: timedelta = timedelta(
-            hours=random.randint(0, N_PAST_HOURS - 1),
+            hours=random.randint(0, n_past_hours - 1),
            minutes=random.randint(0, 59),
-            seconds=random.randint(0, 59)
+            seconds=random.randint(0, 59),
+            milliseconds=random.randint(0, 999),
+            microseconds=random.randint(0, 999)
        )

        data.append(Heartbeat(
@ -65,29 +70,44 @@ def generate_data(n: int) -> List[Heartbeat]:
    return data


-def post_data_sync(data: List[Heartbeat], url: str):
-    for h in data:
+def post_data_sync(data: List[Heartbeat], url: str, api_key: str):
+    encoded_key: str = str(base64.b64encode(api_key.encode('utf-8')), 'utf-8')
+
+    for h in tqdm(data):
        r = requests.post(url, json=[h.__dict__], headers={
-            'User-Agent': UA
+            'User-Agent': UA,
+            'Authorization': f'Basic {encoded_key}',
+            'X-Machine-Name': MACHINE,
        })
-        if r.status_code != 200:
+        if r.status_code != 201:
            print(r.text)
            sys.exit(1)


 def randomword(length: int) -> str:
    letters = string.ascii_lowercase
-    return ''.join(random.choice(letters) for i in range(length))
+    return ''.join(random.choice(letters) for _ in range(length))
+
+
+def parse_arguments():
+    parser = argparse.ArgumentParser(description='Wakapi test data insertion script.')
+    parser.add_argument('-n', type=int, default=20, help='total number of random heartbeats to generate and insert')
+    parser.add_argument('-u', '--url', type=str, default='http://localhost:3000/api/heartbeat',
+                        help='url of your api\'s heartbeats endpoint')
+    parser.add_argument('-k', '--apikey', type=str, required=True,
+                        help='your api key (to get one, go to the web interface, create a new user, log in and copy the key)')
+    parser.add_argument('-p', '--projects', type=int, default=5, help='number of different fake projects to generate')
+    parser.add_argument('-o', '--offset', type=int, default=24,
+                        help='negative time offset in hours from now for to be used as an interval within which to generate heartbeats for')
+    parser.add_argument('-s', '--seed', type=int, default=2020,
+                        help='a seed for initializing the pseudo-random number generator')
+    return parser.parse_args()


 if __name__ == '__main__':
-    n: int = 10
-    url: str = 'http://admin:admin@localhost:3000/api/heartbeat'
+    args = parse_arguments()

-    if len(sys.argv) > 1:
-        n = int(sys.argv[1])
-    if len(sys.argv) > 2:
-        url = sys.argv[2]
+    random.seed(args.seed)

-    data: List[Heartbeat] = generate_data(n)
-    post_data_sync(data, url)
+    data: List[Heartbeat] = generate_data(args.n, args.projects, args.offset)
+    post_data_sync(data, args.url, args.apikey)
--- a/services/aggregation.go
+++ b/services/aggregation.go
@ -1,34 +1,32 @@
 package services

 import (
+	"github.com/muety/wakapi/config"
 	"log"
 	"runtime"
 	"time"

-	"github.com/jasonlvhit/gocron"
-	"github.com/jinzhu/gorm"
+	"github.com/go-co-op/gocron"
 	"github.com/muety/wakapi/models"
 )

 const (
-	aggregateIntervalDays int = 1 // TODO: Make configurable
+	aggregateIntervalDays int = 1
 )

 type AggregationService struct {
-	Config           *models.Config
-	Db               *gorm.DB
-	UserService      *UserService
-	SummaryService   *SummaryService
-	HeartbeatService *HeartbeatService
+	config           *config.Config
+	userService      IUserService
+	summaryService   ISummaryService
+	heartbeatService IHeartbeatService
 }

-func NewAggregationService(db *gorm.DB, userService *UserService, summaryService *SummaryService, heartbeatService *HeartbeatService) *AggregationService {
+func NewAggregationService(userService IUserService, summaryService ISummaryService, heartbeatService IHeartbeatService) *AggregationService {
 	return &AggregationService{
-		Config:           models.GetConfig(),
-		Db:               db,
-		UserService:      userService,
-		SummaryService:   summaryService,
-		HeartbeatService: heartbeatService,
+		config:           config.Get(),
+		userService:      userService,
+		summaryService:   summaryService,
+		heartbeatService: heartbeatService,
 	}
 }

@ -39,31 +37,42 @@ type AggregationJob struct {
 }

 // Schedule a job to (re-)generate summaries every day shortly after midnight
-// TODO: Make configurable
 func (srv *AggregationService) Schedule() {
+	// Run once initially
+	if err := srv.Run(nil); err != nil {
+		log.Fatalf("failed to run AggregationJob: %v\n", err)
+	}
+
+	s := gocron.NewScheduler(time.Local)
+	s.Every(1).Day().At(srv.config.App.AggregationTime).Do(srv.Run, map[string]bool{})
+	s.StartBlocking()
+}
+
+func (srv *AggregationService) Run(userIds map[string]bool) error {
 	jobs := make(chan *AggregationJob)
 	summaries := make(chan *models.Summary)
-	defer close(jobs)
-	defer close(summaries)

 	for i := 0; i < runtime.NumCPU(); i++ {
 		go srv.summaryWorker(jobs, summaries)
 	}

-	for i := 0; i < int(srv.Config.DbMaxConn); i++ {
+	for i := 0; i < int(srv.config.Db.MaxConn); i++ {
 		go srv.persistWorker(summaries)
 	}

-	// Run once initially
-	srv.trigger(jobs)
+	// don't leak open channels
+	go func(c1 chan *AggregationJob, c2 chan *models.Summary) {
+		defer close(c1)
+		defer close(c2)
+		time.Sleep(1 * time.Hour)
+	}(jobs, summaries)

-	gocron.Every(1).Day().At("02:15").Do(srv.trigger, jobs)
-	<-gocron.Start()
+	return srv.trigger(jobs, userIds)
 }

 func (srv *AggregationService) summaryWorker(jobs <-chan *AggregationJob, summaries chan<- *models.Summary) {
 	for job := range jobs {
-		if summary, err := srv.SummaryService.Construct(job.From, job.To, &models.User{ID: job.UserID}, true); err != nil {
+		if summary, err := srv.summaryService.Summarize(job.From, job.To, &models.User{ID: job.UserID}); err != nil {
 			log.Printf("Failed to generate summary (%v, %v, %s) – %v.\n", job.From, job.To, job.UserID, err)
 		} else {
 			log.Printf("Successfully generated summary (%v, %v, %s).\n", job.From, job.To, job.UserID)
@ -74,72 +83,83 @@ func (srv *AggregationService) summaryWorker(jobs <-chan *AggregationJob, summar

 func (srv *AggregationService) persistWorker(summaries <-chan *models.Summary) {
 	for summary := range summaries {
-		if err := srv.SummaryService.Insert(summary); err != nil {
+		if err := srv.summaryService.Insert(summary); err != nil {
 			log.Printf("Failed to save summary (%v, %v, %s) – %v.\n", summary.UserID, summary.FromTime, summary.ToTime, err)
 		}
 	}
 }

-func (srv *AggregationService) trigger(jobs chan<- *AggregationJob) error {
+func (srv *AggregationService) trigger(jobs chan<- *AggregationJob, userIds map[string]bool) error {
 	log.Println("Generating summaries.")

-	users, err := srv.UserService.GetAll()
-	if err != nil {
+	var users []*models.User
+	if allUsers, err := srv.userService.GetAll(); err != nil {
 		log.Println(err)
 		return err
-	}
-
-	latestSummaries, err := srv.SummaryService.GetLatestByUser()
-	if err != nil {
-		log.Println(err)
-		return err
-	}
-
-	userSummaryTimes := make(map[string]time.Time)
-	for _, s := range latestSummaries {
-		userSummaryTimes[s.UserID] = s.ToTime
-	}
-
-	missingUserIDs := make([]string, 0)
-	for _, u := range users {
-		if _, ok := userSummaryTimes[u.ID]; !ok {
-			missingUserIDs = append(missingUserIDs, u.ID)
+	} else if userIds != nil && len(userIds) > 0 {
+		users = make([]*models.User, len(userIds))
+		for i, u := range allUsers {
+			if yes, ok := userIds[u.ID]; yes && ok {
+				users[i] = u
+			}
 		}
+	} else {
+		users = allUsers
 	}

-	firstHeartbeats, err := srv.HeartbeatService.GetFirstUserHeartbeats(missingUserIDs)
+	// Get a map from user ids to the time of their latest summary or nil if none exists yet
+	lastUserSummaryTimes, err := srv.summaryService.GetLatestByUser()
 	if err != nil {
 		log.Println(err)
 		return err
 	}

-	for id, t := range userSummaryTimes {
-		generateUserJobs(id, t, jobs)
+	// Get a map from user ids to the time of their earliest heartbeats or nil if none exists yet
+	firstUserHeartbeatTimes, err := srv.heartbeatService.GetFirstByUsers()
+	if err != nil {
+		log.Println(err)
+		return err
 	}

-	for _, h := range firstHeartbeats {
-		generateUserJobs(h.UserID, time.Time(h.Time), jobs)
+	// Build actual lookup table from it
+	firstUserHeartbeatLookup := make(map[string]models.CustomTime)
+	for _, e := range firstUserHeartbeatTimes {
+		firstUserHeartbeatLookup[e.User] = e.Time
+	}
+
+	// Generate summary aggregation jobs
+	for _, e := range lastUserSummaryTimes {
+		if e.Time.Valid() {
+			// Case 1: User has aggregated summaries already
+			// -> Spawn jobs to create summaries from their latest aggregation to now
+			generateUserJobs(e.User, e.Time.T(), jobs)
+		} else if t := firstUserHeartbeatLookup[e.User]; t.Valid() {
+			// Case 2: User has no aggregated summaries, yet, but has heartbeats
+			// -> Spawn jobs to create summaries from their first heartbeat to now
+			generateUserJobs(e.User, t.T(), jobs)
+		}
+		// Case 3: User doesn't have heartbeats at all
+		// -> Nothing to do
 	}

 	return nil
 }

-func generateUserJobs(userId string, lastAggregation time.Time, jobs chan<- *AggregationJob) {
-	var from, to time.Time
+func generateUserJobs(userId string, from time.Time, jobs chan<- *AggregationJob) {
+	var to time.Time
+
+	// Go to next day of either user's first heartbeat or latest aggregation
+	from.Add(-1 * time.Second)
+	from = time.Date(
+		from.Year(),
+		from.Month(),
+		from.Day()+aggregateIntervalDays,
+		0, 0, 0, 0,
+		from.Location(),
+	)
+
+	// Iteratively aggregate per-day summaries until end of yesterday is reached
 	end := getStartOfToday().Add(-1 * time.Second)
-
-	if lastAggregation.Hour() == 0 {
-		from = lastAggregation
-	} else {
-		from = time.Date(
-			lastAggregation.Year(),
-			lastAggregation.Month(),
-			lastAggregation.Day()+aggregateIntervalDays,
-			0, 0, 0, 0,
-			lastAggregation.Location(),
-		)
-	}
-
 	for from.Before(end) && to.Before(end) {
 		to = time.Date(
 			from.Year(),
--- a/services/alias.go
+++ b/services/alias.go
@ -2,53 +2,114 @@ package services

 import (
 	"errors"
-	"sync"
-
-	"github.com/jinzhu/gorm"
+	"github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/repositories"
+	"log"
+	"sync"
 )

 type AliasService struct {
-	Config *models.Config
-	Db     *gorm.DB
+	config     *config.Config
+	repository repositories.IAliasRepository
 }

-func NewAliasService(db *gorm.DB) *AliasService {
+func NewAliasService(aliasRepo repositories.IAliasRepository) *AliasService {
 	return &AliasService{
-		Config: models.GetConfig(),
-		Db:     db,
+		config:     config.Get(),
+		repository: aliasRepo,
 	}
 }

 var userAliases sync.Map

-func (srv *AliasService) LoadUserAliases(userId string) error {
-	var aliases []*models.Alias
-	if err := srv.Db.
-		Where(&models.Alias{UserID: userId}).
-		Find(&aliases).Error; err != nil {
-		return err
-	}
-
-	userAliases.Store(userId, aliases)
-	return nil
-}
-
-func (srv *AliasService) GetAliasOrDefault(userId string, summaryType uint8, value string) (string, error) {
-	if ua, ok := userAliases.Load(userId); ok {
-		for _, a := range ua.([]*models.Alias) {
-			if a.Type == summaryType && a.Value == value {
-				return a.Key, nil
-			}
-		}
-		return value, nil
-	}
-	return "", errors.New("user aliases not initialized")
-}
-
 func (srv *AliasService) IsInitialized(userId string) bool {
 	if _, ok := userAliases.Load(userId); ok {
 		return true
 	}
 	return false
 }
+
+func (srv *AliasService) InitializeUser(userId string) error {
+	aliases, err := srv.repository.GetByUser(userId)
+	if err == nil {
+		userAliases.Store(userId, aliases)
+	}
+	return err
+}
+
+func (srv *AliasService) GetByUser(userId string) ([]*models.Alias, error) {
+	aliases, err := srv.repository.GetByUser(userId)
+	if err != nil {
+		return nil, err
+	}
+	return aliases, nil
+}
+
+func (srv *AliasService) GetByUserAndKeyAndType(userId, key string, summaryType uint8) ([]*models.Alias, error) {
+	aliases, err := srv.repository.GetByUserAndKeyAndType(userId, key, summaryType)
+	if err != nil {
+		return nil, err
+	}
+	return aliases, nil
+}
+
+func (srv *AliasService) GetAliasOrDefault(userId string, summaryType uint8, value string) (string, error) {
+	if !srv.IsInitialized(userId) {
+		if err := srv.InitializeUser(userId); err != nil {
+			return "", err
+		}
+	}
+
+	aliases, _ := userAliases.Load(userId)
+	for _, a := range aliases.([]*models.Alias) {
+		if a.Type == summaryType && a.Value == value {
+			return a.Key, nil
+		}
+	}
+	return value, nil
+}
+
+func (srv *AliasService) Create(alias *models.Alias) (*models.Alias, error) {
+	result, err := srv.repository.Insert(alias)
+	if err != nil {
+		return nil, err
+	}
+	go srv.reinitUser(alias.UserID)
+	return result, nil
+}
+
+func (srv *AliasService) Delete(alias *models.Alias) error {
+	if alias.UserID == "" {
+		return errors.New("no user id specified")
+	}
+	err := srv.repository.Delete(alias.ID)
+	go srv.reinitUser(alias.UserID)
+	return err
+}
+
+func (srv *AliasService) DeleteMulti(aliases []*models.Alias) error {
+	ids := make([]uint, len(aliases))
+	affectedUsers := make(map[string]bool)
+	for i, a := range aliases {
+		if a.UserID == "" {
+			return errors.New("no user id specified")
+		}
+		affectedUsers[a.UserID] = true
+		ids[i] = a.ID
+	}
+
+	err := srv.repository.DeleteBatch(ids)
+
+	for k := range affectedUsers {
+		go srv.reinitUser(k)
+	}
+
+	return err
+}
+
+func (srv *AliasService) reinitUser(userId string) {
+	if err := srv.InitializeUser(userId); err != nil {
+		log.Printf("error initializing user aliases – %v\n", err)
+	}
+}
--- a/services/alias_test.go
+++ b/services/alias_test.go
@ -0,0 +1,63 @@
+package services
+
+import (
+	"github.com/muety/wakapi/mocks"
+	"github.com/muety/wakapi/models"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/suite"
+	"testing"
+)
+
+type AliasServiceTestSuite struct {
+	suite.Suite
+	TestUserId      string
+	AliasRepository *mocks.AliasRepositoryMock
+}
+
+func (suite *AliasServiceTestSuite) SetupSuite() {
+	suite.TestUserId = "johndoe@example.org"
+
+	aliases := []*models.Alias{
+		{
+			Type:   models.SummaryProject,
+			UserID: suite.TestUserId,
+			Key:    "wakapi",
+			Value:  "wakapi-mobile",
+		},
+	}
+
+	aliasRepoMock := new(mocks.AliasRepositoryMock)
+	aliasRepoMock.On("GetByUser", suite.TestUserId).Return(aliases, nil)
+	aliasRepoMock.On("GetByUser", mock.AnythingOfType("string")).Return([]*models.Alias{}, assert.AnError)
+
+	suite.AliasRepository = aliasRepoMock
+}
+
+func TestAliasServiceTestSuite(t *testing.T) {
+	suite.Run(t, new(AliasServiceTestSuite))
+}
+
+func (suite *AliasServiceTestSuite) TestAliasService_GetAliasOrDefault() {
+	sut := NewAliasService(suite.AliasRepository)
+
+	result1, err1 := sut.GetAliasOrDefault(suite.TestUserId, models.SummaryProject, "wakapi-mobile")
+	result2, err2 := sut.GetAliasOrDefault(suite.TestUserId, models.SummaryProject, "wakapi")
+	result3, err3 := sut.GetAliasOrDefault(suite.TestUserId, models.SummaryProject, "anchr")
+
+	assert.Equal(suite.T(), "wakapi", result1)
+	assert.Nil(suite.T(), err1)
+	assert.Equal(suite.T(), "wakapi", result2)
+	assert.Nil(suite.T(), err2)
+	assert.Equal(suite.T(), "anchr", result3)
+	assert.Nil(suite.T(), err3)
+}
+
+func (suite *AliasServiceTestSuite) TestAliasService_GetAliasOrDefault_ErrorOnNonExistingUser() {
+	sut := NewAliasService(suite.AliasRepository)
+
+	result, err := sut.GetAliasOrDefault("nonexisting", models.SummaryProject, "wakapi-mobile")
+
+	assert.Empty(suite.T(), result)
+	assert.Error(suite.T(), err)
+}
--- a/services/heartbeat.go
+++ b/services/heartbeat.go
@ -1,94 +1,56 @@
 package services

 import (
-	"github.com/jasonlvhit/gocron"
-	"github.com/muety/wakapi/utils"
-	"log"
+	"github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/repositories"
 	"time"

-	"github.com/jinzhu/gorm"
 	"github.com/muety/wakapi/models"
-	gormbulk "github.com/t-tiger/gorm-bulk-insert"
-)
-
-const (
-	TableHeartbeat  = "heartbeat"
-	cleanUpInterval = time.Duration(aggregateIntervalDays) * 2 * 24 * time.Hour
 )

 type HeartbeatService struct {
-	Config *models.Config
-	Db     *gorm.DB
+	config              *config.Config
+	repository          repositories.IHeartbeatRepository
+	languageMappingSrvc ILanguageMappingService
 }

-func NewHeartbeatService(db *gorm.DB) *HeartbeatService {
+func NewHeartbeatService(heartbeatRepo repositories.IHeartbeatRepository, languageMappingService ILanguageMappingService) *HeartbeatService {
 	return &HeartbeatService{
-		Config: models.GetConfig(),
-		Db:     db,
+		config:              config.Get(),
+		repository:          heartbeatRepo,
+		languageMappingSrvc: languageMappingService,
 	}
 }

 func (srv *HeartbeatService) InsertBatch(heartbeats []*models.Heartbeat) error {
-	var batch []interface{}
-	for _, h := range heartbeats {
-		batch = append(batch, *h)
-	}
-
-	if err := gormbulk.BulkInsert(srv.Db, batch, 3000); err != nil {
-		return err
-	}
-	return nil
+	return srv.repository.InsertBatch(heartbeats)
 }

 func (srv *HeartbeatService) GetAllWithin(from, to time.Time, user *models.User) ([]*models.Heartbeat, error) {
-	var heartbeats []*models.Heartbeat
-	if err := srv.Db.
-		Where(&models.Heartbeat{UserID: user.ID}).
-		Where("time >= ?", from).
-		Where("time <= ?", to).
-		Order("time asc").
-		Find(&heartbeats).Error; err != nil {
+	heartbeats, err := srv.repository.GetAllWithin(from, to, user)
+	if err != nil {
 		return nil, err
 	}
-	return heartbeats, nil
+	return srv.augmented(heartbeats, user.ID)
 }

-// Will return *models.Heartbeat object with only user_id and time fields filled
-func (srv *HeartbeatService) GetFirstUserHeartbeats(userIds []string) ([]*models.Heartbeat, error) {
-	var heartbeats []*models.Heartbeat
-	if err := srv.Db.
-		Table("heartbeats").
-		Select("user_id, min(time) as time").
-		Where("user_id IN (?)", userIds).
-		Group("user_id").
-		Scan(&heartbeats).Error; err != nil {
-		return nil, err
-	}
-	return heartbeats, nil
+func (srv *HeartbeatService) GetFirstByUsers() ([]*models.TimeByUser, error) {
+	return srv.repository.GetFirstByUsers()
 }

 func (srv *HeartbeatService) DeleteBefore(t time.Time) error {
-	if err := srv.Db.
-		Where("time <= ?", t).
-		Delete(models.Heartbeat{}).Error; err != nil {
-		return err
+	return srv.repository.DeleteBefore(t)
+}
+
+func (srv *HeartbeatService) augmented(heartbeats []*models.Heartbeat, userId string) ([]*models.Heartbeat, error) {
+	languageMapping, err := srv.languageMappingSrvc.ResolveByUser(userId)
+	if err != nil {
+		return nil, err
 	}
-	return nil
-}

-func (srv *HeartbeatService) CleanUp() error {
-	refTime := utils.StartOfToday().Add(-cleanUpInterval)
-	if err := srv.DeleteBefore(refTime); err != nil {
-		log.Printf("Failed to clean up heartbeats older than %v – %v\n", refTime, err)
-		return err
+	for i := range heartbeats {
+		heartbeats[i].Augment(languageMapping)
 	}
-	log.Printf("Successfully cleaned up heartbeats older than %v\n", refTime)
-	return nil
-}

-func (srv *HeartbeatService) ScheduleCleanUp() {
-	srv.CleanUp()
-
-	gocron.Every(1).Day().At("02:30").Do(srv.CleanUp)
-	<-gocron.Start()
+	return heartbeats, nil
 }
--- a/services/key_value.go
+++ b/services/key_value.go
@ -1,62 +1,31 @@
 package services

 import (
-	"errors"
-	"github.com/jinzhu/gorm"
+	"github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/repositories"
 )

 type KeyValueService struct {
-	Config *models.Config
-	Db     *gorm.DB
+	config     *config.Config
+	repository repositories.IKeyValueRepository
 }

-func NewKeyValueService(db *gorm.DB) *KeyValueService {
+func NewKeyValueService(keyValueRepo repositories.IKeyValueRepository) *KeyValueService {
 	return &KeyValueService{
-		Config: models.GetConfig(),
-		Db:     db,
+		config:     config.Get(),
+		repository: keyValueRepo,
 	}
 }

 func (srv *KeyValueService) GetString(key string) (*models.KeyStringValue, error) {
-	kv := &models.KeyStringValue{}
-	if err := srv.Db.
-		Where(&models.KeyStringValue{Key: key}).
-		First(&kv).Error; err != nil {
-		return nil, err
-	}
-
-	return kv, nil
+	return srv.repository.GetString(key)
 }

 func (srv *KeyValueService) PutString(kv *models.KeyStringValue) error {
-	result := srv.Db.
-		Where(&models.KeyStringValue{Key: kv.Key}).
-		Assign(kv).
-		FirstOrCreate(kv)
-
-	if err := result.Error; err != nil {
-		return err
-	}
-
-	if result.RowsAffected != 1 {
-		return errors.New("nothing updated")
-	}
-
-	return nil
+	return srv.repository.PutString(kv)
 }

 func (srv *KeyValueService) DeleteString(key string) error {
-	result := srv.Db.
-		Delete(&models.KeyStringValue{}, &models.KeyStringValue{Key: key})
-
-	if err := result.Error; err != nil {
-		return err
-	}
-
-	if result.RowsAffected != 1 {
-		return errors.New("nothing deleted")
-	}
-
-	return nil
+	return srv.repository.DeleteString(key)
 }
--- a/services/language_mapping.go
+++ b/services/language_mapping.go
@ -0,0 +1,78 @@
+package services
+
+import (
+	"errors"
+	"github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/repositories"
+	"github.com/patrickmn/go-cache"
+	"time"
+)
+
+type LanguageMappingService struct {
+	config     *config.Config
+	cache      *cache.Cache
+	repository repositories.ILanguageMappingRepository
+}
+
+func NewLanguageMappingService(languageMappingsRepo repositories.ILanguageMappingRepository) *LanguageMappingService {
+	return &LanguageMappingService{
+		config:     config.Get(),
+		repository: languageMappingsRepo,
+		cache:      cache.New(24*time.Hour, 24*time.Hour),
+	}
+}
+
+func (srv *LanguageMappingService) GetById(id uint) (*models.LanguageMapping, error) {
+	return srv.repository.GetById(id)
+}
+
+func (srv *LanguageMappingService) GetByUser(userId string) ([]*models.LanguageMapping, error) {
+	if mappings, found := srv.cache.Get(userId); found {
+		return mappings.([]*models.LanguageMapping), nil
+	}
+
+	mappings, err := srv.repository.GetByUser(userId)
+	if err != nil {
+		return nil, err
+	}
+	srv.cache.Set(userId, mappings, cache.DefaultExpiration)
+	return mappings, nil
+}
+
+func (srv *LanguageMappingService) ResolveByUser(userId string) (map[string]string, error) {
+	mappings := srv.getServerMappings()
+	userMappings, err := srv.GetByUser(userId)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, m := range userMappings {
+		mappings[m.Extension] = m.Language
+	}
+	return mappings, nil
+}
+
+func (srv *LanguageMappingService) Create(mapping *models.LanguageMapping) (*models.LanguageMapping, error) {
+	result, err := srv.repository.Insert(mapping)
+	if err != nil {
+		return nil, err
+	}
+
+	srv.cache.Delete(result.UserID)
+	return result, nil
+}
+
+func (srv *LanguageMappingService) Delete(mapping *models.LanguageMapping) error {
+	if mapping.UserID == "" {
+		return errors.New("no user id specified")
+	}
+	err := srv.repository.Delete(mapping.ID)
+	srv.cache.Delete(mapping.UserID)
+	return err
+}
+
+func (srv *LanguageMappingService) getServerMappings() map[string]string {
+	// https://dave.cheney.net/2017/04/30/if-a-map-isnt-a-reference-variable-what-is-it
+	return srv.config.App.GetCustomLanguages()
+}
--- a/services/misc.go
+++ b/services/misc.go
@ -0,0 +1,119 @@
+package services
+
+import (
+	"github.com/muety/wakapi/config"
+	"go.uber.org/atomic"
+	"log"
+	"runtime"
+	"strconv"
+	"time"
+
+	"github.com/go-co-op/gocron"
+	"github.com/muety/wakapi/models"
+)
+
+type MiscService struct {
+	config          *config.Config
+	userService     IUserService
+	summaryService  ISummaryService
+	keyValueService IKeyValueService
+	jobCount        atomic.Uint32
+}
+
+func NewMiscService(userService IUserService, summaryService ISummaryService, keyValueService IKeyValueService) *MiscService {
+	return &MiscService{
+		config:          config.Get(),
+		userService:     userService,
+		summaryService:  summaryService,
+		keyValueService: keyValueService,
+	}
+}
+
+type CountTotalTimeJob struct {
+	UserID  string
+	NumJobs int
+}
+
+type CountTotalTimeResult struct {
+	UserId string
+	Total  time.Duration
+}
+
+func (srv *MiscService) ScheduleCountTotalTime() {
+	// Run once initially
+	if err := srv.runCountTotalTime(); err != nil {
+		log.Fatalf("failed to run CountTotalTimeJob: %v\n", err)
+	}
+
+	s := gocron.NewScheduler(time.Local)
+	s.Every(1).Day().At(srv.config.App.CountingTime).Do(srv.runCountTotalTime)
+	s.StartBlocking()
+}
+
+func (srv *MiscService) runCountTotalTime() error {
+	jobs := make(chan *CountTotalTimeJob)
+	results := make(chan *CountTotalTimeResult)
+
+	defer close(jobs)
+
+	for i := 0; i < runtime.NumCPU(); i++ {
+		go srv.countTotalTimeWorker(jobs, results)
+	}
+
+	go srv.persistTotalTimeWorker(results)
+
+	// generate the jobs
+	if users, err := srv.userService.GetAll(); err == nil {
+		for _, u := range users {
+			jobs <- &CountTotalTimeJob{
+				UserID:  u.ID,
+				NumJobs: len(users),
+			}
+		}
+	} else {
+		return err
+	}
+
+	return nil
+}
+
+func (srv *MiscService) countTotalTimeWorker(jobs <-chan *CountTotalTimeJob, results chan<- *CountTotalTimeResult) {
+	for job := range jobs {
+		if result, err := srv.summaryService.Aliased(time.Time{}, time.Now(), &models.User{ID: job.UserID}, srv.summaryService.Retrieve); err != nil {
+			log.Printf("Failed to count total for user %s: %v.\n", job.UserID, err)
+		} else {
+			log.Printf("Successfully counted total for user %s.\n", job.UserID)
+			results <- &CountTotalTimeResult{
+				UserId: job.UserID,
+				Total:  result.TotalTime(),
+			}
+		}
+		if srv.jobCount.Inc() == uint32(job.NumJobs) {
+			srv.jobCount.Store(0)
+			close(results)
+		}
+	}
+}
+
+func (srv *MiscService) persistTotalTimeWorker(results <-chan *CountTotalTimeResult) {
+	var c int
+	var total time.Duration
+	for result := range results {
+		total += result.Total
+		c++
+	}
+
+	if err := srv.keyValueService.PutString(&models.KeyStringValue{
+		Key:   config.KeyLatestTotalTime,
+		Value: total.String(),
+	}); err != nil {
+		log.Printf("Failed to save total time count: %v\n", err)
+	}
+
+	if err := srv.keyValueService.PutString(&models.KeyStringValue{
+		Key:   config.KeyLatestTotalUsers,
+		Value: strconv.Itoa(c),
+	}); err != nil {
+		log.Printf("Failed to save total users count: %v\n", err)
+	}
+}
--- a/services/services.go
+++ b/services/services.go
@ -0,0 +1,68 @@
+package services
+
+import (
+	"github.com/muety/wakapi/models"
+	"time"
+)
+
+type IAggregationService interface {
+	Schedule()
+	Run(map[string]bool) error
+}
+
+type IMiscService interface {
+	ScheduleCountTotalTime()
+}
+
+type IAliasService interface {
+	Create(*models.Alias) (*models.Alias, error)
+	Delete(*models.Alias) error
+	DeleteMulti([]*models.Alias) error
+	IsInitialized(string) bool
+	InitializeUser(string) error
+	GetByUser(string) ([]*models.Alias, error)
+	GetByUserAndKeyAndType(string, string, uint8) ([]*models.Alias, error)
+	GetAliasOrDefault(string, uint8, string) (string, error)
+}
+
+type IHeartbeatService interface {
+	InsertBatch([]*models.Heartbeat) error
+	GetAllWithin(time.Time, time.Time, *models.User) ([]*models.Heartbeat, error)
+	GetFirstByUsers() ([]*models.TimeByUser, error)
+	DeleteBefore(time.Time) error
+}
+
+type IKeyValueService interface {
+	GetString(string) (*models.KeyStringValue, error)
+	PutString(*models.KeyStringValue) error
+	DeleteString(string) error
+}
+
+type ILanguageMappingService interface {
+	GetById(uint) (*models.LanguageMapping, error)
+	GetByUser(string) ([]*models.LanguageMapping, error)
+	ResolveByUser(string) (map[string]string, error)
+	Create(*models.LanguageMapping) (*models.LanguageMapping, error)
+	Delete(mapping *models.LanguageMapping) error
+}
+
+type ISummaryService interface {
+	Aliased(time.Time, time.Time, *models.User, SummaryRetriever) (*models.Summary, error)
+	Retrieve(time.Time, time.Time, *models.User) (*models.Summary, error)
+	Summarize(time.Time, time.Time, *models.User) (*models.Summary, error)
+	GetLatestByUser() ([]*models.TimeByUser, error)
+	DeleteByUser(string) error
+	Insert(*models.Summary) error
+}
+
+type IUserService interface {
+	GetUserById(string) (*models.User, error)
+	GetUserByKey(string) (*models.User, error)
+	GetAll() ([]*models.User, error)
+	CreateOrGet(*models.Signup) (*models.User, bool, error)
+	Update(*models.User) (*models.User, error)
+	ResetApiKey(*models.User) (*models.User, error)
+	ToggleBadges(*models.User) (*models.User, error)
+	SetWakatimeApiKey(*models.User, string) (*models.User, error)
+	MigrateMd5Password(*models.User, *models.Login) (*models.User, error)
+}
--- a/services/summary.go
+++ b/services/summary.go
@ -3,87 +3,129 @@ package services
 import (
 	"crypto/md5"
 	"errors"
+	"github.com/muety/wakapi/config"
+	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/repositories"
 	"github.com/patrickmn/go-cache"
 	"math"
 	"sort"
-	"strconv"
 	"time"
-
-	"github.com/jinzhu/gorm"
-	"github.com/muety/wakapi/models"
 )

+const HeartbeatDiffThreshold = 2 * time.Minute
+
 type SummaryService struct {
-	Config           *models.Config
-	Cache            *cache.Cache
-	Db               *gorm.DB
-	HeartbeatService *HeartbeatService
-	AliasService     *AliasService
+	config           *config.Config
+	cache            *cache.Cache
+	repository       repositories.ISummaryRepository
+	heartbeatService IHeartbeatService
+	aliasService     IAliasService
 }

-func NewSummaryService(db *gorm.DB, heartbeatService *HeartbeatService, aliasService *AliasService) *SummaryService {
+type SummaryRetriever func(f, t time.Time, u *models.User) (*models.Summary, error)
+
+func NewSummaryService(summaryRepo repositories.ISummaryRepository, heartbeatService IHeartbeatService, aliasService IAliasService) *SummaryService {
 	return &SummaryService{
-		Config:           models.GetConfig(),
-		Cache:            cache.New(24*time.Hour, 24*time.Hour),
-		Db:               db,
-		HeartbeatService: heartbeatService,
-		AliasService:     aliasService,
+		config:           config.Get(),
+		cache:            cache.New(24*time.Hour, 24*time.Hour),
+		repository:       summaryRepo,
+		heartbeatService: heartbeatService,
+		aliasService:     aliasService,
 	}
 }

-type Interval struct {
-	Start time.Time
-	End   time.Time
-}
+// Public summary generation methods

-func (srv *SummaryService) Construct(from, to time.Time, user *models.User, recompute bool) (*models.Summary, error) {
-	var existingSummaries []*models.Summary
-	var cacheKey string
-
-	if recompute {
-		existingSummaries = make([]*models.Summary, 0)
-	} else {
-		cacheKey = getHash([]time.Time{from, to}, user)
-		if result, ok := srv.Cache.Get(cacheKey); ok {
-			return result.(*models.Summary), nil
-		}
-		summaries, err := srv.GetByUserWithin(user, from, to)
-		if err != nil {
-			return nil, err
-		}
-		existingSummaries = summaries
+func (srv *SummaryService) Aliased(from, to time.Time, user *models.User, f SummaryRetriever) (*models.Summary, error) {
+	// Check cache
+	cacheKey := srv.getHash(from.String(), to.String(), user.ID, "--aliased")
+	if cacheResult, ok := srv.cache.Get(cacheKey); ok {
+		return cacheResult.(*models.Summary), nil
 	}

-	missingIntervals := getMissingIntervals(from, to, existingSummaries)
+	// Wrap alias resolution
+	resolve := func(t uint8, k string) string {
+		s, _ := srv.aliasService.GetAliasOrDefault(user.ID, t, k)
+		return s
+	}

-	heartbeats := make([]*models.Heartbeat, 0)
+	// Initialize alias resolver service
+	if err := srv.aliasService.InitializeUser(user.ID); err != nil {
+		return nil, err
+	}
+
+	// Get actual summary
+	s, err := f(from, to, user)
+	if err != nil {
+		return nil, err
+	}
+
+	// Post-process summary and cache it
+	summary := s.WithResolvedAliases(resolve)
+	srv.cache.SetDefault(cacheKey, summary)
+	return summary.Sorted(), nil
+}
+
+func (srv *SummaryService) Retrieve(from, to time.Time, user *models.User) (*models.Summary, error) {
+	// Check cache
+	cacheKey := srv.getHash(from.String(), to.String(), user.ID)
+	if cacheResult, ok := srv.cache.Get(cacheKey); ok {
+		return cacheResult.(*models.Summary), nil
+	}
+
+	// Get all already existing, pre-generated summaries that fall into the requested interval
+	summaries, err := srv.repository.GetByUserWithin(user, from, to)
+	if err != nil {
+		return nil, err
+	}
+
+	// Generate missing slots (especially before and after existing summaries) from raw heartbeats
+	missingIntervals := srv.getMissingIntervals(from, to, summaries)
 	for _, interval := range missingIntervals {
-		hb, err := srv.HeartbeatService.GetAllWithin(interval.Start, interval.End, user)
-		if err != nil {
+		if s, err := srv.Summarize(interval.Start, interval.End, user); err == nil {
+			summaries = append(summaries, s)
+		} else {
 			return nil, err
 		}
-		heartbeats = append(heartbeats, hb...)
+	}
+
+	// Merge existing and newly generated summary snippets
+	summary, err := srv.mergeSummaries(summaries)
+	if err != nil {
+		return nil, err
+	}
+
+	// Cache 'em
+	srv.cache.SetDefault(cacheKey, summary)
+	return summary.Sorted(), nil
+}
+
+func (srv *SummaryService) Summarize(from, to time.Time, user *models.User) (*models.Summary, error) {
+	// Initialize and fetch data
+	var heartbeats models.Heartbeats
+	if rawHeartbeats, err := srv.heartbeatService.GetAllWithin(from, to, user); err == nil {
+		heartbeats = rawHeartbeats
+	} else {
+		return nil, err
 	}

 	types := models.SummaryTypes()

+	typedAggregations := make(chan models.SummaryItemContainer)
+	defer close(typedAggregations)
+	for _, t := range types {
+		go srv.aggregateBy(heartbeats, t, typedAggregations)
+	}
+
+	// Aggregate raw heartbeats by types in parallel and collect them
 	var projectItems []*models.SummaryItem
 	var languageItems []*models.SummaryItem
 	var editorItems []*models.SummaryItem
 	var osItems []*models.SummaryItem
 	var machineItems []*models.SummaryItem

-	if err := srv.AliasService.LoadUserAliases(user.ID); err != nil {
-		return nil, err
-	}
-
-	c := make(chan models.SummaryItemContainer)
-	for _, t := range types {
-		go srv.aggregateBy(heartbeats, t, user, c)
-	}
-
 	for i := 0; i < len(types); i++ {
-		item := <-c
+		item := <-typedAggregations
 		switch item.Type {
 		case models.SummaryProject:
 			projectItems = item.Items
@ -97,31 +139,16 @@ func (srv *SummaryService) Construct(from, to time.Time, user *models.User, reco
 			machineItems = item.Items
 		}
 	}
-	close(c)

-	realFrom, realTo := from, to
-	if len(existingSummaries) > 0 {
-		realFrom = existingSummaries[0].FromTime
-		realTo = existingSummaries[len(existingSummaries)-1].ToTime
-
-		for _, summary := range existingSummaries {
-			summary.FillUnknown()
-		}
-	}
-	if len(heartbeats) > 0 {
-		t1, t2 := time.Time(heartbeats[0].Time), time.Time(heartbeats[len(heartbeats)-1].Time)
-		if t1.After(realFrom) && t1.Before(time.Date(realFrom.Year(), realFrom.Month(), realFrom.Day()+1, 0, 0, 0, 0, realFrom.Location())) {
-			realFrom = t1
-		}
-		if t2.Before(realTo) && t2.After(time.Date(realTo.Year(), realTo.Month(), realTo.Day()-1, 0, 0, 0, 0, realTo.Location())) {
-			realTo = t2
-		}
+	if heartbeats.Len() > 0 {
+		from = time.Time(heartbeats.First().Time)
+		to = time.Time(heartbeats.Last().Time)
 	}

-	aggregatedSummary := &models.Summary{
+	summary := &models.Summary{
 		UserID:           user.ID,
-		FromTime:         realFrom,
-		ToTime:           realTo,
+		FromTime:         models.CustomTime(from),
+		ToTime:           models.CustomTime(to),
 		Projects:         projectItems,
 		Languages:        languageItems,
 		Editors:          editorItems,
@ -129,84 +156,32 @@ func (srv *SummaryService) Construct(from, to time.Time, user *models.User, reco
 		Machines:         machineItems,
 	}

-	allSummaries := []*models.Summary{aggregatedSummary}
-	allSummaries = append(allSummaries, existingSummaries...)
+	//summary.FillUnknown()

-	summary, err := mergeSummaries(allSummaries)
-	if err != nil {
-		return nil, err
-	}
+	return summary.Sorted(), nil
+}

-	if cacheKey != "" {
-		srv.Cache.SetDefault(cacheKey, summary)
-	}
+// CRUD methods

-	return summary, nil
+func (srv *SummaryService) GetLatestByUser() ([]*models.TimeByUser, error) {
+	return srv.repository.GetLastByUser()
+}
+
+func (srv *SummaryService) DeleteByUser(userId string) error {
+	return srv.repository.DeleteByUser(userId)
 }

 func (srv *SummaryService) Insert(summary *models.Summary) error {
-	if err := srv.Db.Create(summary).Error; err != nil {
-		return err
-	}
-	return nil
+	return srv.repository.Insert(summary)
 }

-func (srv *SummaryService) GetByUserWithin(user *models.User, from, to time.Time) ([]*models.Summary, error) {
-	var summaries []*models.Summary
-	if err := srv.Db.
-		Where(&models.Summary{UserID: user.ID}).
-		Where("from_time >= ?", from).
-		Where("to_time <= ?", to).
-		Order("from_time asc").
-		Preload("Projects", "type = ?", models.SummaryProject).
-		Preload("Languages", "type = ?", models.SummaryLanguage).
-		Preload("Editors", "type = ?", models.SummaryEditor).
-		Preload("OperatingSystems", "type = ?", models.SummaryOS).
-		Preload("Machines", "type = ?", models.SummaryMachine).
-		Find(&summaries).Error; err != nil {
-		return nil, err
-	}
-	return summaries, nil
-}
+// Private summary generation and utility methods

-// Will return *models.Index objects with only user_id and to_time filled
-func (srv *SummaryService) GetLatestByUser() ([]*models.Summary, error) {
-	var summaries []*models.Summary
-	if err := srv.Db.
-		Table("summaries").
-		Select("user_id, max(to_time) as to_time").
-		Group("user_id").
-		Scan(&summaries).Error; err != nil {
-		return nil, err
-	}
-	return summaries, nil
-}
-
-func (srv *SummaryService) aggregateBy(heartbeats []*models.Heartbeat, summaryType uint8, user *models.User, c chan models.SummaryItemContainer) {
+func (srv *SummaryService) aggregateBy(heartbeats []*models.Heartbeat, summaryType uint8, c chan models.SummaryItemContainer) {
 	durations := make(map[string]time.Duration)

 	for i, h := range heartbeats {
-		var key string
-		switch summaryType {
-		case models.SummaryProject:
-			key = h.Project
-		case models.SummaryEditor:
-			key = h.Editor
-		case models.SummaryLanguage:
-			key = h.Language
-		case models.SummaryOS:
-			key = h.OperatingSystem
-		case models.SummaryMachine:
-			key = h.Machine
-		}
-
-		if key == "" {
-			key = models.UnknownSummaryKey
-		}
-
-		if aliasedKey, err := srv.AliasService.GetAliasOrDefault(user.ID, summaryType, key); err == nil {
-			key = aliasedKey
-		}
+		key := h.GetKey(summaryType)

 		if _, ok := durations[key]; !ok {
 			durations[key] = time.Duration(0)
@ -216,9 +191,16 @@ func (srv *SummaryService) aggregateBy(heartbeats []*models.Heartbeat, summaryTy
 			continue
 		}

-		timePassed := h.Time.Time().Sub(heartbeats[i-1].Time.Time())
-		timeThresholded := math.Min(float64(timePassed), float64(time.Duration(2)*time.Minute))
-		durations[key] += time.Duration(int64(timeThresholded))
+		t1, t2, tdiff := h.Time.T(), heartbeats[i-1].Time.T(), time.Duration(0)
+		// This is a hack. The time difference between two heartbeats from two subsequent day (e.g. 23:59:59 and 00:00:01) are ignored.
+		// This is to prevent a discrepancy between summaries computed solely from heartbeats and summaries involving pre-aggregated per-day summaries.
+		// For the latter, a duration is already pre-computed and information about individual heartbeats is lost, so there can be no cross-day overflow.
+		// Essentially, we simply ignore such edge-case heartbeats here, which makes the eventual total duration potentially a bit shorter.
+		if t1.Day() == t2.Day() {
+			timePassed := t1.Sub(t2)
+			tdiff = time.Duration(int64(math.Min(float64(timePassed), float64(HeartbeatDiffThreshold))))
+		}
+		durations[key] += tdiff
 	}

 	items := make([]*models.SummaryItem, 0)
@ -237,43 +219,7 @@ func (srv *SummaryService) aggregateBy(heartbeats []*models.Heartbeat, summaryTy
 	c <- models.SummaryItemContainer{Type: summaryType, Items: items}
 }

-func getMissingIntervals(from, to time.Time, existingSummaries []*models.Summary) []*Interval {
-	if len(existingSummaries) == 0 {
-		return []*Interval{{from, to}}
-	}
-
-	intervals := make([]*Interval, 0)
-
-	// Pre
-	if from.Before(existingSummaries[0].FromTime) {
-		intervals = append(intervals, &Interval{from, existingSummaries[0].FromTime})
-	}
-
-	// Between
-	for i := 0; i < len(existingSummaries)-1; i++ {
-		t1, t2 := existingSummaries[i].ToTime, existingSummaries[i+1].FromTime
-		if t1.Equal(t2) {
-			continue
-		}
-
-		// round to end of day / start of day, assuming that summaries are always generated on a per-day basis
-		td1 := time.Date(t1.Year(), t1.Month(), t1.Day()+1, 0, 0, 0, 0, t1.Location())
-		td2 := time.Date(t2.Year(), t2.Month(), t2.Day(), 0, 0, 0, 0, t2.Location())
-		// one or more day missing in between?
-		if td1.Before(td2) {
-			intervals = append(intervals, &Interval{existingSummaries[i].ToTime, existingSummaries[i+1].FromTime})
-		}
-	}
-
-	// Post
-	if to.After(existingSummaries[len(existingSummaries)-1].ToTime) {
-		intervals = append(intervals, &Interval{to, existingSummaries[len(existingSummaries)-1].ToTime})
-	}
-
-	return intervals
-}
-
-func mergeSummaries(summaries []*models.Summary) (*models.Summary, error) {
+func (srv *SummaryService) mergeSummaries(summaries []*models.Summary) (*models.Summary, error) {
 	if len(summaries) < 1 {
 		return nil, errors.New("no summaries given")
 	}
@ -295,28 +241,28 @@ func mergeSummaries(summaries []*models.Summary) (*models.Summary, error) {
 			return nil, errors.New("users don't match")
 		}

-		if s.FromTime.Before(minTime) {
-			minTime = s.FromTime
+		if s.FromTime.T().Before(minTime) {
+			minTime = s.FromTime.T()
 		}

-		if s.ToTime.After(maxTime) {
-			maxTime = s.ToTime
+		if s.ToTime.T().After(maxTime) {
+			maxTime = s.ToTime.T()
 		}

-		finalSummary.Projects = mergeSummaryItems(finalSummary.Projects, s.Projects)
-		finalSummary.Languages = mergeSummaryItems(finalSummary.Languages, s.Languages)
-		finalSummary.Editors = mergeSummaryItems(finalSummary.Editors, s.Editors)
-		finalSummary.OperatingSystems = mergeSummaryItems(finalSummary.OperatingSystems, s.OperatingSystems)
-		finalSummary.Machines = mergeSummaryItems(finalSummary.Machines, s.Machines)
+		finalSummary.Projects = srv.mergeSummaryItems(finalSummary.Projects, s.Projects)
+		finalSummary.Languages = srv.mergeSummaryItems(finalSummary.Languages, s.Languages)
+		finalSummary.Editors = srv.mergeSummaryItems(finalSummary.Editors, s.Editors)
+		finalSummary.OperatingSystems = srv.mergeSummaryItems(finalSummary.OperatingSystems, s.OperatingSystems)
+		finalSummary.Machines = srv.mergeSummaryItems(finalSummary.Machines, s.Machines)
 	}

-	finalSummary.FromTime = minTime
-	finalSummary.ToTime = maxTime
+	finalSummary.FromTime = models.CustomTime(minTime)
+	finalSummary.ToTime = models.CustomTime(maxTime)

 	return finalSummary, nil
 }

-func mergeSummaryItems(existing []*models.SummaryItem, new []*models.SummaryItem) []*models.SummaryItem {
+func (srv *SummaryService) mergeSummaryItems(existing []*models.SummaryItem, new []*models.SummaryItem) []*models.SummaryItem {
 	items := make(map[string]*models.SummaryItem)

 	// Build map from existing
@ -346,11 +292,46 @@ func mergeSummaryItems(existing []*models.SummaryItem, new []*models.SummaryItem
 	return itemList
 }

-func getHash(times []time.Time, user *models.User) string {
-	digest := md5.New()
-	for _, t := range times {
-		digest.Write([]byte(strconv.Itoa(int(t.Unix()))))
+func (srv *SummaryService) getMissingIntervals(from, to time.Time, summaries []*models.Summary) []*models.Interval {
+	if len(summaries) == 0 {
+		return []*models.Interval{{from, to}}
+	}
+
+	intervals := make([]*models.Interval, 0)
+
+	// Pre
+	if from.Before(summaries[0].FromTime.T()) {
+		intervals = append(intervals, &models.Interval{from, summaries[0].FromTime.T()})
+	}
+
+	// Between
+	for i := 0; i < len(summaries)-1; i++ {
+		t1, t2 := summaries[i].ToTime.T(), summaries[i+1].FromTime.T()
+		if t1.Equal(t2) {
+			continue
+		}
+
+		// round to end of day / start of day, assuming that summaries are always generated on a per-day basis
+		td1 := time.Date(t1.Year(), t1.Month(), t1.Day()+1, 0, 0, 0, 0, t1.Location())
+		td2 := time.Date(t2.Year(), t2.Month(), t2.Day(), 0, 0, 0, 0, t2.Location())
+		// one or more day missing in between?
+		if td1.Before(td2) {
+			intervals = append(intervals, &models.Interval{summaries[i].ToTime.T(), summaries[i+1].FromTime.T()})
+		}
+	}
+
+	// Post
+	if to.After(summaries[len(summaries)-1].ToTime.T()) {
+		intervals = append(intervals, &models.Interval{summaries[len(summaries)-1].ToTime.T(), to})
+	}
+
+	return intervals
+}
+
+func (srv *SummaryService) getHash(args ...string) string {
+	digest := md5.New()
+	for _, a := range args {
+		digest.Write([]byte(a))
 	}
-	digest.Write([]byte(user.ID))
 	return string(digest.Sum(nil))
 }
--- a/services/summary_test.go
+++ b/services/summary_test.go
@ -0,0 +1,290 @@
+package services
+
+import (
+	"github.com/muety/wakapi/mocks"
+	"github.com/muety/wakapi/models"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/suite"
+	"math/rand"
+	"strings"
+	"testing"
+	"time"
+)
+
+const (
+	TestUserId         = "muety"
+	TestProject1       = "test-project-1"
+	TestProject2       = "test-project-2"
+	TestLanguageGo     = "Go"
+	TestLanguageJava   = "Java"
+	TestLanguagePython = "Python"
+	TestEditorGoland   = "GoLand"
+	TestEditorIntellij = "idea"
+	TestEditorVscode   = "vscode"
+	TestOsLinux        = "Linux"
+	TestOsWin          = "Windows"
+	TestMachine1       = "muety-desktop"
+	TestMachine2       = "muety-work"
+	MinUnixTime1       = 1601510400000 * 1e6
+)
+
+type SummaryServiceTestSuite struct {
+	suite.Suite
+	TestUser          *models.User
+	TestStartTime     time.Time
+	TestHeartbeats    []*models.Heartbeat
+	SummaryRepository *mocks.SummaryRepositoryMock
+	HeartbeatService  *mocks.HeartbeatServiceMock
+	AliasService      *mocks.AliasServiceMock
+}
+
+func (suite *SummaryServiceTestSuite) SetupSuite() {
+	suite.TestUser = &models.User{ID: TestUserId}
+
+	suite.TestStartTime = time.Unix(0, MinUnixTime1)
+	suite.TestHeartbeats = []*models.Heartbeat{
+		{
+			ID:              uint(rand.Uint32()),
+			UserID:          TestUserId,
+			Project:         TestProject1,
+			Language:        TestLanguageGo,
+			Editor:          TestEditorGoland,
+			OperatingSystem: TestOsLinux,
+			Machine:         TestMachine1,
+			Time:            models.CustomTime(suite.TestStartTime),
+		},
+		{
+			ID:              uint(rand.Uint32()),
+			UserID:          TestUserId,
+			Project:         TestProject1,
+			Language:        TestLanguageGo,
+			Editor:          TestEditorGoland,
+			OperatingSystem: TestOsLinux,
+			Machine:         TestMachine1,
+			Time:            models.CustomTime(suite.TestStartTime.Add(30 * time.Second)),
+		},
+		{
+			ID:              uint(rand.Uint32()),
+			UserID:          TestUserId,
+			Project:         TestProject1,
+			Language:        TestLanguageGo,
+			Editor:          TestEditorVscode,
+			OperatingSystem: TestOsLinux,
+			Machine:         TestMachine1,
+			Time:            models.CustomTime(suite.TestStartTime.Add(3 * time.Minute)),
+		},
+	}
+}
+
+func (suite *SummaryServiceTestSuite) BeforeTest(suiteName, testName string) {
+	suite.SummaryRepository = new(mocks.SummaryRepositoryMock)
+	suite.HeartbeatService = new(mocks.HeartbeatServiceMock)
+	suite.AliasService = new(mocks.AliasServiceMock)
+}
+
+func TestSummaryServiceTestSuite(t *testing.T) {
+	suite.Run(t, new(SummaryServiceTestSuite))
+}
+
+func (suite *SummaryServiceTestSuite) TestSummaryService_Summarize() {
+	sut := NewSummaryService(suite.SummaryRepository, suite.HeartbeatService, suite.AliasService)
+
+	var (
+		from   time.Time
+		to     time.Time
+		result *models.Summary
+		err    error
+	)
+
+	/* TEST 1 */
+	from, to = suite.TestStartTime.Add(-1*time.Hour), suite.TestStartTime.Add(-1*time.Minute)
+	suite.HeartbeatService.On("GetAllWithin", from, to, suite.TestUser).Return(filter(from, to, suite.TestHeartbeats), nil)
+
+	result, err = sut.Summarize(from, to, suite.TestUser)
+
+	assert.Nil(suite.T(), err)
+	assert.NotNil(suite.T(), result)
+	assert.Equal(suite.T(), from, result.FromTime.T())
+	assert.Equal(suite.T(), to, result.ToTime.T())
+	assert.Zero(suite.T(), result.TotalTime())
+	assert.Empty(suite.T(), result.Projects)
+
+	/* TEST 2 */
+	from, to = suite.TestStartTime.Add(-1*time.Hour), suite.TestStartTime.Add(1*time.Second)
+	suite.HeartbeatService.On("GetAllWithin", from, to, suite.TestUser).Return(filter(from, to, suite.TestHeartbeats), nil)
+
+	result, err = sut.Summarize(from, to, suite.TestUser)
+
+	assert.Nil(suite.T(), err)
+	assert.NotNil(suite.T(), result)
+	assert.Equal(suite.T(), suite.TestHeartbeats[0].Time.T(), result.FromTime.T())
+	assert.Equal(suite.T(), suite.TestHeartbeats[0].Time.T(), result.ToTime.T())
+	assert.Zero(suite.T(), result.TotalTime())
+	assertNumAllItems(suite.T(), 1, result, "")
+
+	/* TEST 3 */
+	from, to = suite.TestStartTime, suite.TestStartTime.Add(1*time.Hour)
+	suite.HeartbeatService.On("GetAllWithin", from, to, suite.TestUser).Return(filter(from, to, suite.TestHeartbeats), nil)
+
+	result, err = sut.Summarize(from, to, suite.TestUser)
+
+	assert.Nil(suite.T(), err)
+	assert.NotNil(suite.T(), result)
+	assert.Equal(suite.T(), suite.TestHeartbeats[0].Time.T(), result.FromTime.T())
+	assert.Equal(suite.T(), suite.TestHeartbeats[len(suite.TestHeartbeats)-1].Time.T(), result.ToTime.T())
+	assert.Equal(suite.T(), 150*time.Second, result.TotalTime())
+	assert.Equal(suite.T(), 30*time.Second, result.TotalTimeByKey(models.SummaryEditor, TestEditorGoland))
+	assert.Equal(suite.T(), 120*time.Second, result.TotalTimeByKey(models.SummaryEditor, TestEditorVscode))
+	assert.Len(suite.T(), result.Editors, 2)
+	assertNumAllItems(suite.T(), 1, result, "e")
+}
+
+func (suite *SummaryServiceTestSuite) TestSummaryService_Retrieve() {
+	sut := NewSummaryService(suite.SummaryRepository, suite.HeartbeatService, suite.AliasService)
+
+	var (
+		summaries []*models.Summary
+		from      time.Time
+		to        time.Time
+		result    *models.Summary
+		err       error
+	)
+
+	/* TEST 1 */
+	from, to = suite.TestStartTime.Add(-12*time.Hour), suite.TestStartTime.Add(12*time.Hour)
+	summaries = []*models.Summary{
+		{
+			ID:       uint(rand.Uint32()),
+			UserID:   TestUserId,
+			FromTime: models.CustomTime(from.Add(10 * time.Minute)),
+			ToTime:   models.CustomTime(to.Add(-10 * time.Minute)),
+			Projects: []*models.SummaryItem{
+				{
+					Type:  models.SummaryProject,
+					Key:   TestProject1,
+					Total: 45 * time.Minute / time.Second, // hack
+				},
+			},
+			Languages:        []*models.SummaryItem{},
+			Editors:          []*models.SummaryItem{},
+			OperatingSystems: []*models.SummaryItem{},
+			Machines:         []*models.SummaryItem{},
+		},
+	}
+
+	suite.SummaryRepository.On("GetByUserWithin", suite.TestUser, from, to).Return(summaries, nil)
+	suite.HeartbeatService.On("GetAllWithin", from, summaries[0].FromTime.T(), suite.TestUser).Return([]*models.Heartbeat{}, nil)
+	suite.HeartbeatService.On("GetAllWithin", summaries[0].ToTime.T(), to, suite.TestUser).Return([]*models.Heartbeat{}, nil)
+
+	result, err = sut.Retrieve(from, to, suite.TestUser)
+
+	assert.Nil(suite.T(), err)
+	assert.NotNil(suite.T(), result)
+	assert.Len(suite.T(), result.Projects, 1)
+	assert.Equal(suite.T(), summaries[0].Projects[0].Total*time.Second, result.TotalTime())
+	suite.HeartbeatService.AssertNumberOfCalls(suite.T(), "GetAllWithin", 2)
+
+	/* TEST 2 */
+	from, to = suite.TestStartTime.Add(-10*time.Minute), suite.TestStartTime.Add(12*time.Hour)
+	summaries = []*models.Summary{
+		{
+			ID:       uint(rand.Uint32()),
+			UserID:   TestUserId,
+			FromTime: models.CustomTime(from.Add(20 * time.Minute)),
+			ToTime:   models.CustomTime(to.Add(-6 * time.Hour)),
+			Projects: []*models.SummaryItem{
+				{
+					Type:  models.SummaryProject,
+					Key:   TestProject1,
+					Total: 45 * time.Minute / time.Second, // hack
+				},
+			},
+			Languages:        []*models.SummaryItem{},
+			Editors:          []*models.SummaryItem{},
+			OperatingSystems: []*models.SummaryItem{},
+			Machines:         []*models.SummaryItem{},
+		},
+		{
+			ID:       uint(rand.Uint32()),
+			UserID:   TestUserId,
+			FromTime: models.CustomTime(to.Add(-6 * time.Hour)),
+			ToTime:   models.CustomTime(to),
+			Projects: []*models.SummaryItem{
+				{
+					Type:  models.SummaryProject,
+					Key:   TestProject2,
+					Total: 45 * time.Minute / time.Second, // hack
+				},
+			},
+			Languages:        []*models.SummaryItem{},
+			Editors:          []*models.SummaryItem{},
+			OperatingSystems: []*models.SummaryItem{},
+			Machines:         []*models.SummaryItem{},
+		},
+	}
+
+	suite.SummaryRepository.On("GetByUserWithin", suite.TestUser, from, to).Return(summaries, nil)
+	suite.HeartbeatService.On("GetAllWithin", from, summaries[0].FromTime.T(), suite.TestUser).Return(filter(from, summaries[0].FromTime.T(), suite.TestHeartbeats), nil)
+
+	result, err = sut.Retrieve(from, to, suite.TestUser)
+
+	assert.Nil(suite.T(), err)
+	assert.NotNil(suite.T(), result)
+	assert.Len(suite.T(), result.Projects, 2)
+	assert.Equal(suite.T(), 150*time.Second+90*time.Minute, result.TotalTime())
+	assert.Equal(suite.T(), 150*time.Second+45*time.Minute, result.TotalTimeByKey(models.SummaryProject, TestProject1))
+	assert.Equal(suite.T(), 45*time.Minute, result.TotalTimeByKey(models.SummaryProject, TestProject2))
+}
+
+func (suite *SummaryServiceTestSuite) TestSummaryService_Aliased() {
+	sut := NewSummaryService(suite.SummaryRepository, suite.HeartbeatService, suite.AliasService)
+
+	var (
+		from   time.Time
+		to     time.Time
+		result *models.Summary
+		err    error
+	)
+
+	from, to = suite.TestStartTime, suite.TestStartTime.Add(1*time.Hour)
+	suite.HeartbeatService.On("GetAllWithin", from, to, suite.TestUser).Return(filter(from, to, suite.TestHeartbeats), nil)
+	suite.AliasService.On("InitializeUser", TestUserId).Return(nil)
+	suite.AliasService.On("GetAliasOrDefault", TestUserId, models.SummaryProject, TestProject1).Return(TestProject2, nil)
+	suite.AliasService.On("GetAliasOrDefault", TestUserId, mock.Anything, mock.Anything).Return("", nil)
+
+	result, err = sut.Aliased(from, to, suite.TestUser, sut.Summarize)
+
+	assert.Nil(suite.T(), err)
+	assert.NotNil(suite.T(), result)
+	assert.Zero(suite.T(), result.TotalTimeByKey(models.SummaryProject, TestProject1))
+	assert.NotZero(suite.T(), result.TotalTimeByKey(models.SummaryProject, TestProject2))
+}
+
+func filter(from, to time.Time, heartbeats []*models.Heartbeat) []*models.Heartbeat {
+	filtered := make([]*models.Heartbeat, 0, len(heartbeats))
+	for _, h := range heartbeats {
+		if (h.Time.T().Equal(from) || h.Time.T().After(from)) && h.Time.T().Before(to) {
+			filtered = append(filtered, h)
+		}
+	}
+	return filtered
+}
+
+func assertNumAllItems(t *testing.T, expected int, summary *models.Summary, except string) {
+	if !strings.Contains(except, "p") {
+		assert.Len(t, summary.Projects, expected)
+	}
+	if !strings.Contains(except, "e") {
+		assert.Len(t, summary.Editors, expected)
+	}
+	if !strings.Contains(except, "l") {
+		assert.Len(t, summary.Languages, expected)
+	}
+	if !strings.Contains(except, "o") {
+		assert.Len(t, summary.OperatingSystems, expected)
+	}
+	if !strings.Contains(except, "m") {
+		assert.Len(t, summary.Machines, expected)
+	}
+}
--- a/services/user.go
+++ b/services/user.go
@ -1,49 +1,59 @@
 package services

 import (
-	"errors"
-	"github.com/jinzhu/gorm"
+	"github.com/muety/wakapi/config"
 	"github.com/muety/wakapi/models"
+	"github.com/muety/wakapi/repositories"
 	"github.com/muety/wakapi/utils"
+	"github.com/patrickmn/go-cache"
 	uuid "github.com/satori/go.uuid"
+	"time"
 )

 type UserService struct {
-	Config *models.Config
-	Db     *gorm.DB
+	Config     *config.Config
+	cache      *cache.Cache
+	repository repositories.IUserRepository
 }

-func NewUserService(db *gorm.DB) *UserService {
+func NewUserService(userRepo repositories.IUserRepository) *UserService {
 	return &UserService{
-		Config: models.GetConfig(),
-		Db:     db,
+		Config:     config.Get(),
+		repository: userRepo,
+		cache:      cache.New(1*time.Hour, 2*time.Hour),
 	}
 }

 func (srv *UserService) GetUserById(userId string) (*models.User, error) {
-	u := &models.User{}
-	if err := srv.Db.Where(&models.User{ID: userId}).First(u).Error; err != nil {
-		return u, err
+	if u, ok := srv.cache.Get(userId); ok {
+		return u.(*models.User), nil
 	}
+
+	u, err := srv.repository.GetById(userId)
+	if err != nil {
+		return nil, err
+	}
+
+	srv.cache.Set(u.ID, u, cache.DefaultExpiration)
 	return u, nil
 }

 func (srv *UserService) GetUserByKey(key string) (*models.User, error) {
-	u := &models.User{}
-	if err := srv.Db.Where(&models.User{ApiKey: key}).First(u).Error; err != nil {
-		return u, err
+	if u, ok := srv.cache.Get(key); ok {
+		return u.(*models.User), nil
 	}
+
+	u, err := srv.repository.GetByApiKey(key)
+	if err != nil {
+		return nil, err
+	}
+
+	srv.cache.Set(u.ID, u, cache.DefaultExpiration)
 	return u, nil
 }

 func (srv *UserService) GetAll() ([]*models.User, error) {
-	var users []*models.User
-	if err := srv.Db.
-		Table("users").
-		Find(&users).Error; err != nil {
-		return nil, err
-	}
-	return users, nil
+	return srv.repository.GetAll()
 }

 func (srv *UserService) CreateOrGet(signup *models.Signup) (*models.User, bool, error) {
@ -53,65 +63,43 @@ func (srv *UserService) CreateOrGet(signup *models.Signup) (*models.User, bool,
 		Password: signup.Password,
 	}

-	if err := utils.HashPassword(u, srv.Config.PasswordSalt); err != nil {
+	if hash, err := utils.HashBcrypt(u.Password, srv.Config.Security.PasswordSalt); err != nil {
 		return nil, false, err
+	} else {
+		u.Password = hash
 	}

-	result := srv.Db.FirstOrCreate(u, &models.User{ID: u.ID})
-	if err := result.Error; err != nil {
-		return nil, false, err
-	}
-
-	if result.RowsAffected == 1 {
-		return u, true, nil
-	}
-
-	return u, false, nil
+	return srv.repository.InsertOrGet(u)
 }

 func (srv *UserService) Update(user *models.User) (*models.User, error) {
-	result := srv.Db.Model(&models.User{}).Updates(user)
-	if err := result.Error; err != nil {
-		return nil, err
-	}
-
-	if result.RowsAffected != 1 {
-		return nil, errors.New("nothing updated")
-	}
-
-	return user, nil
+	srv.cache.Flush()
+	return srv.repository.Update(user)
 }

 func (srv *UserService) ResetApiKey(user *models.User) (*models.User, error) {
+	srv.cache.Flush()
 	user.ApiKey = uuid.NewV4().String()
 	return srv.Update(user)
 }

 func (srv *UserService) ToggleBadges(user *models.User) (*models.User, error) {
-	result := srv.Db.Model(user).Update("badges_enabled", !user.BadgesEnabled)
-	if err := result.Error; err != nil {
-		return nil, err
-	}
+	srv.cache.Flush()
+	return srv.repository.UpdateField(user, "badges_enabled", !user.BadgesEnabled)
+}

-	if result.RowsAffected != 1 {
-		return nil, errors.New("nothing updated")
-	}
-
-	return user, nil
+func (srv *UserService) SetWakatimeApiKey(user *models.User, apiKey string) (*models.User, error) {
+	srv.cache.Flush()
+	return srv.repository.UpdateField(user, "wakatime_api_key", apiKey)
 }

 func (srv *UserService) MigrateMd5Password(user *models.User, login *models.Login) (*models.User, error) {
+	srv.cache.Flush()
 	user.Password = login.Password
-	if err := utils.HashPassword(user, srv.Config.PasswordSalt); err != nil {
+	if hash, err := utils.HashBcrypt(user.Password, srv.Config.Security.PasswordSalt); err != nil {
 		return nil, err
+	} else {
+		user.Password = hash
 	}
-
-	result := srv.Db.Model(user).Update("password", user.Password)
-	if err := result.Error; err != nil {
-		return nil, err
-	} else if result.RowsAffected < 1 {
-		return nil, errors.New("nothing changes")
-	}
-
-	return user, nil
+	return srv.repository.UpdateField(user, "password", user.Password)
 }
--- a/sonar-project.properties
+++ b/sonar-project.properties
@ -0,0 +1,3 @@
+sonar.exclusions=**/*_test.go,.idea/**,.vscode/**,mocks/**
+sonar.tests=.
+sonar.go.coverage.reportPaths=coverage/coverage.out
--- a/static/assets/app.js
+++ b/static/assets/app.js
@ -1,4 +1,3 @@
-const SHOW_TOP_N = 10
 const CHART_TARGET_SIZE = 200

 const projectsCanvas = document.getElementById('chart-projects')
@ -17,7 +16,16 @@ const containers = [projectContainer, osContainer, editorContainer, languageCont
 const canvases = [projectsCanvas, osCanvas, editorsCanvas, languagesCanvas, machinesCanvas]
 const data = [wakapiData.projects, wakapiData.operatingSystems, wakapiData.editors, wakapiData.languages, wakapiData.machines]

+let topNPickers = [...document.getElementsByClassName('top-picker')]
+topNPickers.sort(((a, b) => parseInt(a.attributes['data-entity'].value) - parseInt(b.attributes['data-entity'].value)))
+topNPickers.forEach(e => {
+    const idx = parseInt(e.attributes['data-entity'].value)
+    e.max = Math.min(data[idx].length, 10)
+    e.value = e.max
+})
+
 let charts = []
+let showTopN = []
 let resizeCount = 0

 String.prototype.toHHMMSS = function () {
@ -38,7 +46,7 @@ String.prototype.toHHMMSS = function () {
    return hours + ':' + minutes + ':' + seconds
 }

-function draw() {
+function draw(subselection) {
    function getTooltipOptions(key, type) {
        return {
            mode: 'single',
@ -47,19 +55,26 @@ function draw() {
                    let idx = type === 'pie' ? item.index : item.datasetIndex
                    let d = wakapiData[key][idx]
                    return `${d.key}: ${d.total.toString().toHHMMSS()}`
-                }
+                },
+                title: () => 'Total Time'
            }
        }
    }

-    charts.forEach(c => c.destroy())
+    function shouldUpdate(index) {
+        return !subselection || (subselection.includes(index) && data[index].length >= showTopN[index])
+    }

-    let projectChart = !projectsCanvas.classList.contains('hidden')
+    charts
+        .filter((c, i) => shouldUpdate(i))
+        .forEach(c => c.destroy())
+
+    let projectChart = !projectsCanvas.classList.contains('hidden') && shouldUpdate(0)
        ? new Chart(projectsCanvas.getContext('2d'), {
            type: 'horizontalBar',
            data: {
                datasets: wakapiData.projects
-                    .slice(0, Math.min(SHOW_TOP_N, wakapiData.projects.length))
+                    .slice(0, Math.min(showTopN[0], wakapiData.projects.length))
                    .map(p => {
                        return {
                            label: p.key,
@ -87,18 +102,18 @@ function draw() {
        })
        : null

-    let osChart = !osCanvas.classList.contains('hidden')
+    let osChart = !osCanvas.classList.contains('hidden') && shouldUpdate(1)
        ? new Chart(osCanvas.getContext('2d'), {
            type: 'pie',
            data: {
                datasets: [{
                    data: wakapiData.operatingSystems
-                        .slice(0, Math.min(SHOW_TOP_N, wakapiData.operatingSystems.length))
+                        .slice(0, Math.min(showTopN[1], wakapiData.operatingSystems.length))
                        .map(p => parseInt(p.total)),
                    backgroundColor: wakapiData.operatingSystems.map(p => getRandomColor(p.key))
                }],
                labels: wakapiData.operatingSystems
-                    .slice(0, Math.min(SHOW_TOP_N, wakapiData.operatingSystems.length))
+                    .slice(0, Math.min(showTopN[1], wakapiData.operatingSystems.length))
                    .map(p => p.key)
            },
            options: {
@ -109,18 +124,18 @@ function draw() {
        })
        : null

-    let editorChart = !editorsCanvas.classList.contains('hidden')
+    let editorChart = !editorsCanvas.classList.contains('hidden') && shouldUpdate(2)
        ? new Chart(editorsCanvas.getContext('2d'), {
            type: 'pie',
            data: {
                datasets: [{
                    data: wakapiData.editors
-                        .slice(0, Math.min(SHOW_TOP_N, wakapiData.editors.length))
+                        .slice(0, Math.min(showTopN[2], wakapiData.editors.length))
                        .map(p => parseInt(p.total)),
                    backgroundColor: wakapiData.editors.map(p => getRandomColor(p.key))
                }],
                labels: wakapiData.editors
-                    .slice(0, Math.min(SHOW_TOP_N, wakapiData.editors.length))
+                    .slice(0, Math.min(showTopN[2], wakapiData.editors.length))
                    .map(p => p.key)
            },
            options: {
@ -131,18 +146,18 @@ function draw() {
        })
        : null

-    let languageChart = !languagesCanvas.classList.contains('hidden')
+    let languageChart = !languagesCanvas.classList.contains('hidden') && shouldUpdate(3)
        ? new Chart(languagesCanvas.getContext('2d'), {
            type: 'pie',
            data: {
                datasets: [{
                    data: wakapiData.languages
-                        .slice(0, Math.min(SHOW_TOP_N, wakapiData.languages.length))
+                        .slice(0, Math.min(showTopN[3], wakapiData.languages.length))
                        .map(p => parseInt(p.total)),
                    backgroundColor: wakapiData.languages.map(p => languageColors[p.key.toLowerCase()] || getRandomColor(p.key))
                }],
                labels: wakapiData.languages
-                    .slice(0, Math.min(SHOW_TOP_N, wakapiData.languages.length))
+                    .slice(0, Math.min(showTopN[3], wakapiData.languages.length))
                    .map(p => p.key)
            },
            options: {
@ -153,18 +168,18 @@ function draw() {
        })
        : null

-    let machineChart = !machinesCanvas.classList.contains('hidden')
+    let machineChart = !machinesCanvas.classList.contains('hidden') && shouldUpdate(4)
        ? new Chart(machinesCanvas.getContext('2d'), {
            type: 'pie',
            data: {
                datasets: [{
                    data: wakapiData.machines
-                        .slice(0, Math.min(SHOW_TOP_N, wakapiData.machines.length))
+                        .slice(0, Math.min(showTopN[4], wakapiData.machines.length))
                        .map(p => parseInt(p.total)),
                    backgroundColor: wakapiData.machines.map(p => getRandomColor(p.key))
                }],
                labels: wakapiData.machines
-                    .slice(0, Math.min(SHOW_TOP_N, wakapiData.machines.length))
+                    .slice(0, Math.min(showTopN[4], wakapiData.machines.length))
                    .map(p => p.key)
            },
            options: {
@ -179,13 +194,14 @@ function draw() {

    charts = [projectChart, osChart, editorChart, languageChart, machineChart].filter(c => !!c)

-    charts.forEach(c => c.options.onResize(c.chart))
-    equalizeHeights()
+    if (!subselection) {
+        charts.forEach(c => c.options.onResize(c.chart))
+        equalizeHeights()
+    }
 }

-function setTopLabels() {
-    [...document.getElementsByClassName('top-label')]
-        .forEach(e => e.innerText = `(top ${SHOW_TOP_N})`)
+function parseTopN() {
+    showTopN = topNPickers.map(e => parseInt(e.value))
 }

 function togglePlaceholders(mask) {
@ -203,7 +219,7 @@ function togglePlaceholders(mask) {
 }

 function getPresentDataMask() {
-    return data.map(list => list.reduce((acc, e) => acc + e.total, 0) > 0)
+    return data.map(list => (list ? list.reduce((acc, e) => acc + e.total, 0) : 0) > 0)
 }

 function getContainer(chart) {
@ -242,8 +258,8 @@ function equalizeHeights() {
    })
 }

-function getTotal(data) {
-    let total = data.reduce((acc, d) => acc + d.total, 0)
+function getTotal(items) {
+    let total = items.reduce((acc, d) => acc + d.total, 0)
    document.getElementById('total-span').innerText = total.toString().toHHMMSS()
 }

@ -300,7 +316,13 @@ window.addEventListener('click', function (event) {
 })

 window.addEventListener('load', function () {
-    setTopLabels()
+    topNPickers.forEach(e => e.addEventListener('change', () => {
+        parseTopN()
+        draw([parseInt(e.attributes['data-entity'].value)])
+    }))
+
+    parseTopN()
    togglePlaceholders(getPresentDataMask())
    draw()
-})
+})
+
--- a/static/assets/images/android-chrome-192x192.png
+++ b/static/assets/images/android-chrome-192x192.png
--- a/static/assets/images/android-chrome-512x512.png
+++ b/static/assets/images/android-chrome-512x512.png
--- a/static/assets/images/apple-touch-icon.png
+++ b/static/assets/images/apple-touch-icon.png
--- a/static/assets/images/favicon-16x16.png
+++ b/static/assets/images/favicon-16x16.png
--- a/static/assets/images/favicon-32x32.png
+++ b/static/assets/images/favicon-32x32.png
--- a/static/assets/images/favicon.ico
+++ b/static/assets/images/favicon.ico
--- a/static/assets/images/ghicon.svg
+++ b/static/assets/images/ghicon.svg
@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128"><g fill="#eee"><path fill-rule="evenodd" clip-rule="evenodd" d="M64 5.103c-33.347 0-60.388 27.035-60.388 60.388 0 26.682 17.303 49.317 41.297 57.303 3.017.56 4.125-1.31 4.125-2.905 0-1.44-.056-6.197-.082-11.243-16.8 3.653-20.345-7.125-20.345-7.125-2.747-6.98-6.705-8.836-6.705-8.836-5.48-3.748.413-3.67.413-3.67 6.063.425 9.257 6.223 9.257 6.223 5.386 9.23 14.127 6.562 17.573 5.02.542-3.903 2.107-6.568 3.834-8.076-13.413-1.525-27.514-6.704-27.514-29.843 0-6.593 2.36-11.98 6.223-16.21-.628-1.52-2.695-7.662.584-15.98 0 0 5.07-1.623 16.61 6.19C53.7 35 58.867 34.327 64 34.304c5.13.023 10.3.694 15.127 2.033 11.526-7.813 16.59-6.19 16.59-6.19 3.287 8.317 1.22 14.46.593 15.98 3.872 4.23 6.215 9.617 6.215 16.21 0 23.194-14.127 28.3-27.574 29.796 2.167 1.874 4.097 5.55 4.097 11.183 0 8.08-.07 14.583-.07 16.572 0 1.607 1.088 3.49 4.148 2.897 23.98-7.994 41.263-30.622 41.263-57.294C124.388 32.14 97.35 5.104 64 5.104z"/><path d="M26.484 91.806c-.133.3-.605.39-1.035.185-.44-.196-.685-.605-.543-.906.13-.31.603-.395 1.04-.188.44.197.69.61.537.91zm-.743-.55M28.93 94.535c-.287.267-.85.143-1.232-.28-.396-.42-.47-.983-.177-1.254.298-.266.844-.14 1.24.28.394.426.472.984.17 1.255zm-.575-.618M31.312 98.012c-.37.258-.976.017-1.35-.52-.37-.538-.37-1.183.01-1.44.373-.258.97-.025 1.35.507.368.545.368 1.19-.01 1.452zm0 0M34.573 101.373c-.33.365-1.036.267-1.552-.23-.527-.487-.674-1.18-.343-1.544.336-.366 1.045-.264 1.564.23.527.486.686 1.18.333 1.543zm0 0M39.073 103.324c-.147.473-.825.688-1.51.486-.683-.207-1.13-.76-.99-1.238.14-.477.823-.7 1.512-.485.683.206 1.13.756.988 1.237zm0 0M44.016 103.685c.017.498-.563.91-1.28.92-.723.017-1.308-.387-1.315-.877 0-.503.568-.91 1.29-.924.717-.013 1.306.387 1.306.88zm0 0M48.614 102.903c.086.485-.413.984-1.126 1.117-.7.13-1.35-.172-1.44-.653-.086-.498.422-.997 1.122-1.126.714-.123 1.354.17 1.444.663zm0 0"/></g></svg>
--- a/static/assets/images/screenshot.png
+++ b/static/assets/images/screenshot.png
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Ferdinand Mütsch	b2a3579be9	Merge pull request #97 from muety/actions fix(ci): actions release, build on push/pr	2021-01-24 12:23:05 +01:00
Steven Tang	42a6e9d923	fix(ci): actions release, build on push/pr	2021-01-24 22:06:04 +11:00
Ferdinand Mütsch	1f44ccadba	docs: update readme with new build instructions	2021-01-24 09:54:54 +01:00
Ferdinand Mütsch	6ea72c6d02	chore: increment patch version number	2021-01-24 09:50:04 +01:00
Steven Tang	d93348842a	fix: delay defer templateFile.Close()	2021-01-24 10:19:20 +11:00
Steven Tang	fb92747129	fix: embed of static, views	2021-01-24 10:13:37 +11:00
Steven Tang	4e6e665e19	feat: embed assets into binary Resolves #26	2021-01-23 10:00:15 +11:00
Ferdinand Mütsch	a3d8c4d464	chore: docs and typos	2021-01-22 00:02:56 +01:00
Ferdinand Mütsch	e9eaa9da53	chore: update version	2021-01-21 23:50:27 +01:00
Ferdinand Mütsch	5adb795f59	chore: include integrity hashes (resolve #93 )	2021-01-21 23:50:14 +01:00
Ferdinand Mütsch	a552073d18	feat: ui for configuring wakatime integration	2021-01-21 23:26:50 +01:00
Ferdinand Mütsch	de0401d4bb	fix: move caching out of authentication middleware	2021-01-21 23:19:17 +01:00
Ferdinand Mütsch	c39538db13	chore: include machine name in sample data script	2021-01-21 22:17:46 +01:00
Ferdinand Mütsch	189a09d91f	feat: relay heartbeats to wakatime (resolve #28 )	2021-01-21 22:17:32 +01:00
Ferdinand Mütsch	d57c02af7c	feat: add ui for managing aliases (resolve #91 )	2021-01-21 00:26:52 +01:00
Ferdinand Mütsch	16b683fcbd	fix: permissions bug related to deleting language mappings	2021-01-20 20:49:27 +01:00
Ferdinand Mütsch	acda62488d	chore: support for cockroachdb (resolve #90 )	2021-01-18 21:37:15 +01:00
Ferdinand Mütsch	1aecfc4ca3	chore: wording	2021-01-17 09:40:14 +01:00
Ferdinand Mütsch	cd97976ed5	chore: show total hours on index page (resolve #88 )	2021-01-17 09:32:08 +01:00
Ferdinand Mütsch	3a4504d56a	Merge pull request #86 from YC/docker docker: reduce image layers	2021-01-12 12:27:50 +01:00
Ferdinand Mütsch	a018f70c3f	Merge pull request #85 from YC/master Reduce minimum username length to 1	2021-01-12 12:17:36 +01:00
Steven Tang	a03e49e7f0	chore: increment version to 1.18.2	2021-01-12 21:57:15 +11:00
Steven Tang	ec81d9fe5d	docker: reduce image layers	2021-01-12 21:50:20 +11:00
Steven Tang	b7a1e2d795	Reduce minimum username length to 1	2021-01-12 21:06:57 +11:00
Ferdinand Mütsch	98b62b33c8	fix: concurrent access to language mappings (resolve #83 )	2021-01-07 10:56:00 +01:00
Ferdinand Mütsch	262bee9022	fix: do not attempt to bind on ipv6 in docker (resolve #84 )	2021-01-07 10:55:53 +01:00
Ferdinand Mütsch	9766d8e903	feat: ability to choose number of top entities to display (resolve #81 )	2021-01-05 12:41:01 +01:00
Ferdinand Mütsch	39c4777fc8	fix: crash on fail to listen	2021-01-05 11:28:51 +01:00
Ferdinand Mütsch	143c80b7b4	docs: update readme	2021-01-04 11:39:02 +01:00
Ferdinand Mütsch	72e42a9c42	feat: add ipv6 and tls support (resolve #79 )	2020-12-12 22:07:00 +01:00
Ferdinand Mütsch	439a87dec9	docs: advanced setup instructions for client-side reverse proxy	2020-12-11 23:05:49 +01:00
Ferdinand Mütsch	e8067bb13e	fix: crash when running aggregation job on schedule (fix #78 ) chore: move from gocron to its maintained fork	2020-12-11 10:05:17 +01:00
Ferdinand Mütsch	219e969957	Merge branch 'master' of github.com:muety/wakapi into master	2020-12-02 23:16:48 +01:00
Ferdinand Mütsch	e610bb3ee3	fix: html footer rendering chore: update chartjs	2020-12-02 23:16:12 +01:00
Ferdinand Mütsch	889edd7a33	Merge pull request #77 from notarock/master Added missing closing parens in language mapping description	2020-12-01 07:48:04 +01:00
Roch D'Amour	4161623c24	Added missing closing parens	2020-11-30 21:42:29 -05:00
Ferdinand Mütsch	67fe6eea56	chore: even more code smell	2020-11-28 20:57:13 +01:00
Ferdinand Mütsch	095fef4868	chore: minor code smell	2020-11-28 20:50:35 +01:00
Ferdinand Mütsch	a0e64ca955	chore: show badges on front page	2020-11-28 20:44:39 +01:00
Ferdinand Mütsch	903defca99	fix: commit missing files chore: add favicon	2020-11-28 20:31:28 +01:00
Ferdinand Mütsch	16b9aa2282	feat: add front page (resolve #34 )	2020-11-28 20:23:40 +01:00
Ferdinand Mütsch	4a78f66778	chore: set samesite attributes and configurable max age for cookies (resolve #75 ) fix: sort entities by total time descending (resolve #74)	2020-11-21 22:30:56 +01:00
Ferdinand Mütsch	f4328c452f	test: add essential unit tests for core functionality (resolve #6 )	2020-11-14 12:30:45 +01:00
Ferdinand Mütsch	e806e5455e	chore: attempt to exclude test and mock code from analysis	2020-11-08 13:13:48 +01:00
Ferdinand Mütsch	97e1fb27eb	chore: attempt to configure coverage for sonar	2020-11-08 13:07:37 +01:00
Ferdinand Mütsch	ad8168801c	test: add first few unit tests	2020-11-08 12:46:12 +01:00
Ferdinand Mütsch	35cdc7b485	refactor: define interface types for all services and repositories	2020-11-08 10:12:49 +01:00
Ferdinand Mütsch	664714de8f	fix: filters	2020-11-07 18:39:36 +01:00
Ferdinand Mütsch	7befb82814	chore: remove clean up related parameters	2020-11-07 12:34:17 +01:00
Ferdinand Mütsch	2f12d8efde	refactor: simplify summary generation (resolve #68 )	2020-11-07 12:01:35 +01:00
Ferdinand Mütsch	8ddd9904a0	refactor: alert handling	2020-11-06 21:19:54 +01:00
Ferdinand Mütsch	78874566a4	chore: introduce constants for db dialects chore: go fmt	2020-11-06 17:20:26 +01:00
Ferdinand Mütsch	e269b37b0e	feat: add ability to regenerate summaries fix: database cascade settings chore: debug log mode for gorm queries is back	2020-11-06 17:09:41 +01:00
Ferdinand Mütsch	e6a04cc76d	chore: remove cleanup functionality chore: minor code changes	2020-11-06 14:07:07 +01:00
Ferdinand Mütsch	cb8f68df82	chore: add quick start scripts for spinning up dev database container	2020-11-03 10:32:18 +01:00
Ferdinand Mütsch	b4d2ee7d16	fix: not creating language mappings table due to broken type definition in users model (resolve #69 ) chore: introduce foreign key constraints	2020-11-03 10:26:32 +01:00
Ferdinand Mütsch	1224024913	fix: postgres connection (resolve #70 )	2020-11-03 10:02:59 +01:00
Ferdinand Mütsch	8efc3854ab	refactor: migrate to latest gorm version refactor: language mappings implementation	2020-11-01 20:14:10 +01:00
Ferdinand Mütsch	755cabb5f4	refactor: introduce repositories as an additional layer of abstraction to allow for better testability	2020-11-01 16:56:36 +01:00
Ferdinand Mütsch	96ff490d8d	fix: crash when calling badge endpoint with no filters applied (resolve #66 )	2020-11-01 16:04:30 +01:00
Ferdinand Mütsch	68e66298b8	fix: postprocessing for alias keys not corresponding to an actual entity	2020-11-01 13:09:39 +01:00
Ferdinand Mütsch	c2d30826f6	fix: critical fixes related to alias resolution	2020-11-01 12:50:59 +01:00
Ferdinand Mütsch	861c81e414	docs: fix endpoint paths in readme (thanks @mlunax)	2020-10-27 21:06:41 +01:00
Ferdinand Mütsch	892d265c4d	chore: update version	2020-10-26 23:10:15 +01:00
Ferdinand Mütsch	e19761337f	Merge branch 'notarock/62'	2020-10-26 22:34:50 +01:00
Roch D'Amour	3f973a28ea	Fixed custom rule settings CSS	2020-10-26 00:27:07 -04:00
Roch D'Amour	86fc751e58	Cache rules per user, invalidate cache on update	2020-10-25 23:19:16 -04:00
Roch D'Amour	178c417757	Keep the old configuration rules behaviour	2020-10-25 23:02:28 -04:00
Roch D'Amour	395d039d41	General cleanup and fixed PR comments	2020-10-25 22:18:33 -04:00
Roch D'Amour	fdf2289f8e	MVP for custom rules support	2020-10-25 21:51:06 -04:00
Roch D'Amour	06b3fdd17c	Improved Dockerfile and docker-compose for dev	2020-10-25 02:21:41 -04:00
Ferdinand Mütsch	4506493353	docs: fix badges	2020-10-18 13:42:59 +02:00
Ferdinand Mütsch	11728b80ac	docs: update url	2020-10-17 13:37:43 +02:00
Ferdinand Mütsch	b7c7817923	docs: display latest release as badge	2020-10-16 17:07:35 +02:00
Ferdinand Mütsch	c78ee5465c	chore: display database type	2020-10-16 16:58:16 +02:00
Ferdinand Mütsch	4336d732c9	docs: update readme	2020-10-16 16:51:11 +02:00
Ferdinand Mütsch	177cbb12fc	chore: make aggregation time configurable (resolve #60 )	2020-10-16 16:21:19 +02:00
Ferdinand Mütsch	a4c344aaa1	chore: minor code restyling	2020-10-16 16:11:14 +02:00
Ferdinand Mütsch	c575b2fd5c	fix: json serialization error when percentage is nan	2020-10-16 15:16:43 +02:00
Ferdinand Mütsch	67a59561c8	fix: use custom date for summary model to support sqlite deserialization	2020-10-16 14:49:22 +02:00
Ferdinand Mütsch	f7520b2b4a	fix: timestamp precision	2020-10-16 12:49:36 +02:00
Ferdinand Mütsch	54a944ec41	fix: critical summary computation bug (faulty intervals) fix: doubly included heartbeats fix: cross-day heartbeats are ignored for consistency	2020-10-16 12:00:20 +02:00
Ferdinand Mütsch	44b6efb6ee	chore: add random seed to generator script	2020-10-16 11:59:08 +02:00
Ferdinand Mütsch	efd4764728	fix: sample data script	2020-10-11 09:55:01 +02:00
Ferdinand Mütsch	dd50b4076f	docs: include sonarcloud badges	2020-10-09 21:47:18 +02:00
Ferdinand Mütsch	21b822de42	chore: minor code enhancements	2020-10-09 21:37:20 +02:00
Ferdinand Mütsch	4d22756b8a	fix: stop tracking legacy config file	2020-10-04 12:20:15 +02:00
Ferdinand Mütsch	c54f2743fd	fix: add legacy config again for backwards-compatibility	2020-10-04 12:16:42 +02:00
Ferdinand Mütsch	a8d5d69629	chore: update build workflow to exclude certain directories	2020-10-04 12:08:58 +02:00
Ferdinand Mütsch	0111aa7543	Merge branch 'master' into stable	2020-10-04 11:54:02 +02:00
Ferdinand Mütsch	3bafde7ab1	fix: adapt docker image to new config format	2020-10-04 11:52:52 +02:00
Ferdinand Mütsch	b378597594	fix: define flags on init chore: remove deprecated config files	2020-10-04 11:47:31 +02:00
Ferdinand Mütsch	29619f09ed	docs: update docs for new config format	2020-10-04 11:35:23 +02:00
Ferdinand Mütsch	ff3fea0359	feat: introduce legacy config migration	2020-10-04 11:14:44 +02:00
Ferdinand Mütsch	660fefcca9	refactor: migrate to new config (resolve #54 )	2020-10-04 10:37:38 +02:00
Ferdinand Mütsch	2ecbb3ea02	fix: user agent strign parsing (fix #53 )	2020-09-29 18:58:10 +02:00
Ferdinand Mütsch	f843be8d12	refactor: move config to separate package chore: load config from main method	2020-09-29 18:55:07 +02:00
Ferdinand Mütsch	062a9c6f57	Merge remote-tracking branch 'origin/master'	2020-09-12 16:58:31 +02:00
Ferdinand Mütsch	1c0e63e125	chore: restrict badge access by user agent	2020-09-12 16:58:22 +02:00
Ferdinand Mütsch	45f372168d	docs: readme	2020-09-12 16:50:51 +02:00
Ferdinand Mütsch	0760be86ff	Merge branch 'master' into stable	2020-09-12 16:40:50 +02:00
Ferdinand Mütsch	a059c637a7	Merge branch 'master' into stable	2020-08-30 01:43:05 +02:00
				`@ -0,0 +1 @@`
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