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wakapi/utils/summary.go

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package utils
import (
"errors"
"github.com/muety/wakapi/models"
"net/http"
"time"
)
func ParseInterval(interval string) (*models.IntervalKey, error) {
for _, i := range models.AllIntervals {
if i.HasAlias(interval) {
return i, nil
}
}
return nil, errors.New("not a valid interval")
}
func MustResolveIntervalRaw(interval string) (from, to time.Time) {
_, from, to = ResolveIntervalRaw(interval)
return from, to
}
func ResolveIntervalRaw(interval string) (err error, from, to time.Time) {
parsed, err := ParseInterval(interval)
if err != nil {
return err, time.Time{}, time.Time{}
}
return ResolveInterval(parsed)
}
func ResolveInterval(interval *models.IntervalKey) (err error, from, to time.Time) {
to = time.Now()
switch interval {
case models.IntervalToday:
from = StartOfToday()
case models.IntervalYesterday:
from = StartOfToday().Add(-24 * time.Hour)
to = StartOfToday()
case models.IntervalThisWeek:
from = StartOfWeek()
case models.IntervalLastWeek:
from = StartOfWeek().AddDate(0, 0, -7)
to = StartOfWeek()
case models.IntervalThisMonth:
from = StartOfMonth()
case models.IntervalLastMonth:
from = StartOfMonth().AddDate(0, -1, 0)
to = StartOfMonth()
case models.IntervalThisYear:
from = StartOfYear()
case models.IntervalPast7Days:
from = StartOfToday().AddDate(0, 0, -7)
case models.IntervalPast7DaysYesterday:
from = StartOfToday().AddDate(0, 0, -1).AddDate(0, 0, -7)
to = StartOfToday().AddDate(0, 0, -1)
case models.IntervalPast14Days:
from = StartOfToday().AddDate(0, 0, -14)
case models.IntervalPast30Days:
from = StartOfToday().AddDate(0, 0, -30)
case models.IntervalPast12Months:
from = StartOfToday().AddDate(0, -12, 0)
case models.IntervalAny:
from = time.Time{}
default:
err = errors.New("invalid interval")
}
return err, from, to
}
func ParseSummaryParams(r *http.Request) (*models.SummaryParams, error) {
user := r.Context().Value(models.UserKey).(*models.User)
params := r.URL.Query()
var err error
var from, to time.Time
if interval := params.Get("interval"); interval != "" {
err, from, to = ResolveIntervalRaw(interval)
} else if start := params.Get("start"); start != "" {
err, from, to = ResolveIntervalRaw(start)
} else {
from, err = ParseDateTime(params.Get("from"))
if err != nil {
from, err = ParseDate(params.Get("from"))
if err != nil {
return nil, errors.New("missing 'from' parameter")
}
}
to, err = ParseDateTime(params.Get("to"))
if err != nil {
to, err = ParseDate(params.Get("to"))
if err != nil {
return nil, errors.New("missing 'to' parameter")
}
}
}
recompute := params.Get("recompute") != "" && params.Get("recompute") != "false"
return &models.SummaryParams{
From: from,
To: to,
User: user,
Recompute: recompute,
}, nil
}