Save room to online storage when the room is closed (#122)

* save game when room end

* Only save room when there is existed room

pkg/worker/room/room.go

@@ -253,8 +253,13 @@ func (r *Room) Close() {
 	}
 
 	r.IsRunning = false
-	log.Println("Closing room", r.ID)
-	log.Println("Closing director of room ", r.ID)
+	log.Println("Closing room and director of room ", r.ID)
+
+	// Save game before quit. Only save for game which was previous saved to avoid flooding database
+	if r.isRoomExisted() {
+		log.Println("Saved Game before closing room")
+		r.SaveGame()
+	}
 	r.director.Close()
 	log.Println("Closing input of room ", r.ID)
 	close(r.inputChannel)
@@ -265,6 +270,22 @@ func (r *Room) Close() {
 	//close(r.audioChannel)
 }
 
+func (r *Room) isRoomExisted() bool {
+	// Check if room is in online storage
+	_, err := r.onlineStorage.LoadFile(r.ID)
+	if err == nil {
+		return true
+	}
+
+	// Check if room is in local
+	savepath := util.GetSavePath(r.ID)
+	if r.isGameOnLocal(savepath) {
+		return true
+	}
+
+	return false
+}
+
 // SaveGame will save game to local and trigger a callback to store game on onlineStorage, so the game can be accessed later
 func (r *Room) SaveGame() error {
 	onlineSaveFunc := func() error {