Implemented nowplaying repo

persistence/nowplaying_repository.go

@@ -1,19 +1,24 @@
 package persistence
 
 import (
+	"encoding/json"
 	"errors"
 	"time"
 
 	"github.com/deluan/gosonic/engine"
 )
 
+var (
+	nowPlayingKeyName = []byte("nowplaying")
+)
+
 type nowPlayingRepository struct {
 	ledisRepository
 }
 
 func NewNowPlayingRepository() engine.NowPlayingRepository {
 	r := &nowPlayingRepository{}
-	r.init("nnowplaying", &engine.NowPlayingInfo{})
+	r.init("nowplaying", &engine.NowPlayingInfo{})
 	return r
 }
 
@@ -22,7 +27,17 @@ func (r *nowPlayingRepository) Add(id string) error {
 		return errors.New("Id is required")
 	}
 	m := &engine.NowPlayingInfo{TrackId: id, Start: time.Now()}
-	return r.saveOrUpdate(m.TrackId, m)
+
+	h, err := json.Marshal(m)
+	if err != nil {
+		return err
+	}
+	err = Db().Set(nowPlayingKeyName, []byte(h))
+	if err != nil {
+		return err
+	}
+	_, err = Db().Expire(nowPlayingKeyName, int64(engine.NowPlayingExpire.Seconds()))
+	return err
 }
 
 var _ engine.NowPlayingRepository = (*nowPlayingRepository)(nil)