refactor: define interface types for all services and repositories

config/config.go

@@ -28,10 +28,8 @@ const (
 	SQLDialectSqlite   = "sqlite3"
 )
 
-var (
-	cfg   *Config
-	cFlag *string
-)
+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"`
@@ -71,11 +69,6 @@ type Config struct {
 	Server   serverConfig
 }
 
-func init() {
-	cFlag = flag.String("c", defaultConfigPath, "config file location")
-	flag.Parse()
-}
-
 func (c *Config) IsDev() bool {
 	return IsDev(c.Env)
 }
@@ -220,6 +213,8 @@ func Get() *Config {
 func Load() *Config {
 	config := &Config{}
 
+	flag.Parse()
+
 	maybeMigrateLegacyConfig()
 
 	if err := configor.New(&configor.Config{}).Load(config, mustReadConfigLocation()); err != nil {