Fix metadataStore sync issue for transcoded files

internal/api/handlers.go

@@ -298,6 +298,7 @@ type TranscodingManager interface {
 	GetTranscodingStatus(fileHash string) string
 	GetJobProgress(fileHash string) (float64, bool)
 	InitializeDatabase() error
+	SetUpdateMetadataCallback(callback func(fileHash string) error)
 	// Admin methods
 	GetAllJobs() map[string]interface{}
 	GetFailedJobsCount() (int, error)
@@ -1390,6 +1391,32 @@ func (g *Gateway) storeMetadata(fileHash string, metadata FileMetadata) error {
 	return nil
 }
 
+// UpdateMetadataStreamingInfo updates the streaming info for an existing file in metadataStore
+func (g *Gateway) UpdateMetadataStreamingInfo(fileHash string) error {
+	// Get existing metadata from store
+	existingMetadata, exists := metadataStore[fileHash]
+	if !exists {
+		log.Printf("DEBUG: File %s not found in metadataStore, skipping streaming info update", fileHash)
+		return nil
+	}
+
+	// Get fresh metadata with streaming info from database
+	freshMetadata, err := g.getMetadata(fileHash)
+	if err != nil {
+		log.Printf("DEBUG: Failed to get fresh metadata for %s: %v", fileHash, err)
+		return err
+	}
+
+	// Update the existing metadata with streaming info
+	if freshMetadata.StreamingInfo != nil {
+		existingMetadata.StreamingInfo = freshMetadata.StreamingInfo
+		metadataStore[fileHash] = existingMetadata
+		log.Printf("DEBUG: Updated metadataStore with streaming info for file %s", fileHash)
+	}
+
+	return nil
+}
+
 func (g *Gateway) getMetadata(fileHash string) (*FileMetadata, error) {
 	// Get metadata from storage backend
 	dbMetadata, err := g.storage.GetFileMetadata(fileHash)
@@ -3145,6 +3172,11 @@ func (g *Gateway) DHTStatsHandler(w http.ResponseWriter, r *http.Request) {
 func RegisterRoutes(r *mux.Router, cfg *config.Config, storage *storage.Backend) *Gateway {
 	gateway := NewGateway(cfg, storage)
 	
+	// Set up transcoding callback to update metadata store
+	if gateway.transcodingManager != nil {
+		gateway.transcodingManager.SetUpdateMetadataCallback(gateway.UpdateMetadataStreamingInfo)
+	}
+	
 	// Initialize tracker if enabled
 	var trackerInstance *tracker.Tracker
 	var announceHandler *tracker.AnnounceHandler

internal/transcoding/manager.go

@@ -14,6 +14,7 @@ type Manager struct {
 	transcoder           *Transcoder
 	db                   *sql.DB
 	enabled              bool
+	updateMetadataCallback func(fileHash string) error
 }
 
 // NewManager creates a new transcoding manager
@@ -25,6 +26,11 @@ func NewManager(transcoder *Transcoder, db *sql.DB) *Manager {
 	}
 }
 
+// SetUpdateMetadataCallback sets the callback for updating metadata store
+func (tm *Manager) SetUpdateMetadataCallback(callback func(fileHash string) error) {
+	tm.updateMetadataCallback = callback
+}
+
 // QueueVideoForTranscoding adds a video file to the transcoding queue
 func (tm *Manager) QueueVideoForTranscoding(fileHash, fileName, filePath string, fileSize int64) {
 	if !tm.enabled {
@@ -65,6 +71,13 @@ func (tm *Manager) QueueVideoForTranscoding(fileHash, fileName, filePath string,
 			} else {
 				log.Printf("Transcoding completed successfully for %s", fileName)
 				tm.markTranscodingCompleted(fileHash)
+				
+				// Update metadata store with streaming info
+				if tm.updateMetadataCallback != nil {
+					if updateErr := tm.updateMetadataCallback(fileHash); updateErr != nil {
+						log.Printf("Warning: Failed to update metadata store for %s: %v", fileHash, updateErr)
+					}
+				}
 			}
 		},
 	}