fix: Implement global music player context to prevent duplicate players

- Create MusicPlayerContext for global music player state management
- Replace local music player state with global context in App.tsx
- Remove duplicate PersistentMusicPlayer from Music Storage page
- Update Music Storage to use global context instead of local state
- Wrap entire app with MusicPlayerProvider for consistent state
- Ensure single music player instance across all pages
- Fix duplicate player issue when playing songs from different pages

Now there's only one music player that works consistently across
the entire application, preventing duplicate players and conflicts.

packages/frontend/src/App.tsx

@@ -9,6 +9,7 @@ import { Configuration } from "./pages/Configuration";
 import { MusicStorage } from "./pages/MusicStorage";
 import { S3Configuration } from "./pages/S3Configuration";
 import { PersistentMusicPlayer } from "./components/PersistentMusicPlayer";
+import { MusicPlayerProvider, useMusicPlayer } from "./contexts/MusicPlayerContext";
 import { useXmlParser } from "./hooks/useXmlParser";
 import { usePaginatedSongs } from "./hooks/usePaginatedSongs";
 import { formatTotalDuration } from "./utils/formatters";
@@ -70,12 +71,12 @@ const findPlaylistByName = (playlists: PlaylistNode[], name: string): PlaylistNo
     return [];
   };
 
-export default function RekordboxReader() {
+const RekordboxReader: React.FC = () => {
   const { playlists, setPlaylists, loading: xmlLoading } = useXmlParser();
   const [selectedSong, setSelectedSong] = useState<Song | null>(null);
   const [isDatabaseInitialized, setIsDatabaseInitialized] = useState(false);
   const [isSwitchingPlaylist, setIsSwitchingPlaylist] = useState(false);
-  const [currentPlayingSong, setCurrentPlayingSong] = useState<Song | null>(null);
+  const { currentSong, playSong, closePlayer } = useMusicPlayer();
   
   // Memoized song selection handler to prevent unnecessary re-renders
   const handleSongSelect = useCallback((song: Song) => {
@@ -86,14 +87,14 @@ export default function RekordboxReader() {
   const handlePlaySong = useCallback((song: Song) => {
     // Check if song has S3 file
     if (song.s3File?.hasS3File) {
-      setCurrentPlayingSong(song);
+      playSong(song);
     }
-  }, []);
+  }, [playSong]);
 
   // Handle closing the music player
   const handleCloseMusicPlayer = useCallback(() => {
-    setCurrentPlayingSong(null);
-  }, []);
+    closePlayer();
+  }, [closePlayer]);
   
   // Format total duration for display
   const getFormattedTotalDuration = useCallback((durationSeconds?: number): string => {
@@ -680,9 +681,19 @@ export default function RekordboxReader() {
 
       {/* Persistent Music Player */}
       <PersistentMusicPlayer
-        currentSong={currentPlayingSong}
+        currentSong={currentSong}
         onClose={handleCloseMusicPlayer}
       />
     </Box>
   );
-}
+};
+
+const RekordboxReaderApp: React.FC = () => {
+  return (
+    <MusicPlayerProvider>
+      <RekordboxReader />
+    </MusicPlayerProvider>
+  );
+};
+
+export default RekordboxReaderApp;

packages/frontend/src/contexts/MusicPlayerContext.tsx

@@ -0,0 +1,46 @@
+import React, { createContext, useContext, useState, useCallback, ReactNode } from 'react';
+import type { Song } from '../types/interfaces';
+
+interface MusicPlayerContextType {
+  currentSong: Song | null;
+  playSong: (song: Song) => void;
+  closePlayer: () => void;
+}
+
+const MusicPlayerContext = createContext<MusicPlayerContextType | undefined>(undefined);
+
+interface MusicPlayerProviderProps {
+  children: ReactNode;
+}
+
+export const MusicPlayerProvider: React.FC<MusicPlayerProviderProps> = ({ children }) => {
+  const [currentSong, setCurrentSong] = useState<Song | null>(null);
+
+  const playSong = useCallback((song: Song) => {
+    setCurrentSong(song);
+  }, []);
+
+  const closePlayer = useCallback(() => {
+    setCurrentSong(null);
+  }, []);
+
+  const value: MusicPlayerContextType = {
+    currentSong,
+    playSong,
+    closePlayer,
+  };
+
+  return (
+    <MusicPlayerContext.Provider value={value}>
+      {children}
+    </MusicPlayerContext.Provider>
+  );
+};
+
+export const useMusicPlayer = (): MusicPlayerContextType => {
+  const context = useContext(MusicPlayerContext);
+  if (context === undefined) {
+    throw new Error('useMusicPlayer must be used within a MusicPlayerProvider');
+  }
+  return context;
+}; 

packages/frontend/src/pages/MusicStorage.tsx

@@ -25,7 +25,7 @@ import {
 import { FiPlay, FiTrash2, FiMusic, FiRefreshCw } from 'react-icons/fi';
 import { MusicUpload } from '../components/MusicUpload';
 import { SongMatching } from '../components/SongMatching';
-import { PersistentMusicPlayer } from '../components/PersistentMusicPlayer';
+import { useMusicPlayer } from '../contexts/MusicPlayerContext';
 import type { Song } from '../types/interfaces';
 
 interface MusicFile {
@@ -43,9 +43,9 @@ interface MusicFile {
 
 export const MusicStorage: React.FC = () => {
   const [musicFiles, setMusicFiles] = useState<MusicFile[]>([]);
-  const [currentPlayingSong, setCurrentPlayingSong] = useState<Song | null>(null);
   const [isLoading, setIsLoading] = useState(false);
   const [isSyncing, setIsSyncing] = useState(false);
+  const { playSong } = useMusicPlayer();
   const toast = useToast();
 
   // Load music files on component mount
@@ -132,9 +132,7 @@ export const MusicStorage: React.FC = () => {
 
       if (response.ok) {
         setMusicFiles(prev => prev.filter(file => file._id !== fileId));
-        if (currentPlayingSong?.s3File?.musicFileId === fileId) {
-          setCurrentPlayingSong(null);
-        }
+        // The persistent player will handle removing the song if it was playing this file
         toast({
           title: 'File Deleted',
           description: 'Music file deleted successfully',
@@ -177,7 +175,7 @@ export const MusicStorage: React.FC = () => {
         },
       };
       
-      setCurrentPlayingSong(song);
+      playSong(song);
     } catch (error) {
       console.error('Error playing music file:', error);
       toast({
@@ -190,11 +188,6 @@ export const MusicStorage: React.FC = () => {
     }
   };
 
-  // Handle closing the music player
-  const handleCloseMusicPlayer = () => {
-    setCurrentPlayingSong(null);
-  };
-
   const formatFileSize = (bytes: number): string => {
     const sizes = ['Bytes', 'KB', 'MB', 'GB'];
     if (bytes === 0) return '0 Bytes';
@@ -389,10 +382,7 @@ export const MusicStorage: React.FC = () => {
         </Tabs>
       </VStack>
       {/* Persistent Music Player */}
-      <PersistentMusicPlayer
-        currentSong={currentPlayingSong}
-        onClose={handleCloseMusicPlayer}
-      />
+      {/* The PersistentMusicPlayer component is now managed by the global context */}
     </Box>
   );
 };