small fixed, device repo and some device api

app/config/driver.go

@@ -10,19 +10,16 @@ import (
 )
 
 var dp models.DriverProvider
-var dpMutex sync.Mutex
+var dpOnce sync.Once
 
 func DriverProvider() models.DriverProvider {
-	dpMutex.Lock()
-	defer dpMutex.Unlock()
-
-	if dp == nil {
+	dpOnce.Do(func() {
 		dp = drivers.DriverMap{
 			models.DTNanoLeaf: &nanoleaf.Driver{},
 			models.DTHue:      &hue.Driver{},
 			models.DTLIFX:     &lifx.Driver{},
 		}
-	}
+	})
 
 	return dp
 }

app/config/repo.go

@@ -30,7 +30,7 @@ func ColorPresetRepository() models.ColorPresetRepository {
 
 func DeviceRepository() models.DeviceRepository {
 	if dRepo == nil {
-		panic("panik")
+		dRepo = &mysql.DeviceRepo{DBX: DBX()}
 	}
 
 	return dRepo