Replace database with simple JSON file storage

app/api/playlists/[id]/route.ts

@@ -1,5 +1,5 @@
 import { NextRequest, NextResponse } from 'next/server'
-import { getDb } from '@/lib/db'
+import { db } from '@/lib/db'
 
 export async function DELETE(
   request: NextRequest,
@@ -8,8 +8,7 @@ export async function DELETE(
   try {
     const { id } = await params
 
-    const db = getDb()
-    db.prepare('DELETE FROM playlists WHERE id = ?').run(id)
+    db.deletePlaylist(id)
 
     console.log('[API] Playlist deleted:', id)
     return NextResponse.json({ success: true })
@@ -29,8 +28,7 @@ export async function GET(
   try {
     const { id } = await params
 
-    const db = getDb()
-    const playlist = db.prepare('SELECT * FROM playlists WHERE id = ?').get(id) as any
+    const playlist = db.getPlaylistById(id)
 
     if (!playlist) {
       return NextResponse.json(
@@ -40,16 +38,13 @@ export async function GET(
     }
 
     // Get songs for this playlist
-    const songs = db.prepare(`
-      SELECT s.*, ps.addedAt FROM songs s
-      INNER JOIN playlistSongs ps ON s.id = ps.songId
-      WHERE ps.playlistId = ?
-      ORDER BY ps.addedAt ASC
-    `).all(id)
+    const playlistSongs = db.getPlaylistSongs(id)
+    const playlistWithSongs = {
+      ...playlist,
+      playlistSongs
+    }
 
-    playlist.playlistSongs = songs.map((song: any) => ({ song }))
-
-    return NextResponse.json(playlist)
+    return NextResponse.json(playlistWithSongs)
   } catch (error) {
     console.error('[API] Error fetching playlist:', error)
     return NextResponse.json(

app/api/playlists/[id]/songs/[songId]/route.ts

@@ -1,5 +1,5 @@
 import { NextRequest, NextResponse } from 'next/server'
-import { getDb } from '@/lib/db'
+import { db } from '@/lib/db'
 
 export async function DELETE(
   request: NextRequest,
@@ -8,8 +8,7 @@ export async function DELETE(
   try {
     const { id, songId } = await params
 
-    const db = getDb()
-    db.prepare('DELETE FROM playlistSongs WHERE playlistId = ? AND songId = ?').run(id, songId)
+    db.removeSongFromPlaylist(id, songId)
 
     console.log('[API] Song removed from playlist')
     return NextResponse.json({ success: true })

app/api/playlists/[id]/songs/route.ts

@@ -1,6 +1,5 @@
 import { NextRequest, NextResponse } from 'next/server'
-import { getDb } from '@/lib/db'
-import { randomBytes } from 'crypto'
+import { db } from '@/lib/db'
 
 export async function POST(
   request: NextRequest,
@@ -17,30 +16,16 @@ export async function POST(
       )
     }
 
-    // Check if already in playlist
-    const db = getDb()
-    const existing = db.prepare('SELECT * FROM playlistSongs WHERE playlistId = ? AND songId = ?').get(id, songId)
+    const playlistSong = db.addSongToPlaylist(id, songId)
 
-    if (existing) {
+    if (!playlistSong) {
       return NextResponse.json(
         { error: 'Song already in playlist' },
         { status: 400 }
       )
     }
 
-    // Get next position
-    const maxPosition = db.prepare('SELECT MAX(position) as max FROM playlistSongs WHERE playlistId = ?').get(id) as any
-    const position = (maxPosition?.max ?? -1) + 1
-
-    const playlistSongId = randomBytes(16).toString('hex')
-    db.prepare(`
-      INSERT INTO playlistSongs (id, playlistId, songId, position)
-      VALUES (?, ?, ?, ?)
-    `).run(playlistSongId, id, songId, position)
-
-    const playlistSong = db.prepare('SELECT * FROM playlistSongs WHERE id = ?').get(playlistSongId)
-
-    console.log('[API] Song added to playlist:', playlistSongId)
+    console.log('[API] Song added to playlist:', playlistSong.id)
     return NextResponse.json(playlistSong)
   } catch (error) {
     console.error('[API] Error adding song to playlist:', error)

app/api/playlists/route.ts

@@ -1,24 +1,16 @@
 import { NextRequest, NextResponse } from 'next/server'
-import { getDb } from '@/lib/db'
-import { randomBytes } from 'crypto'
+import { db } from '@/lib/db'
 
 export async function GET() {
   try {
-    const db = getDb()
-    const playlists = db.prepare('SELECT * FROM playlists ORDER BY createdAt DESC').all() as any[]
+    const playlists = db.getPlaylists()
 
     // Get songs for each playlist
     const playlistsWithSongs = playlists.map(playlist => {
-      const songs = db.prepare(`
-        SELECT s.* FROM songs s
-        INNER JOIN playlistSongs ps ON s.id = ps.songId
-        WHERE ps.playlistId = ?
-        ORDER BY ps.position
-      `).all(playlist.id)
-
+      const playlistSongs = db.getPlaylistSongs(playlist.id)
       return {
         ...playlist,
-        playlistSongs: songs.map((song: any) => ({ song }))
+        playlistSongs
       }
     })
 
@@ -43,13 +35,9 @@ export async function POST(request: NextRequest) {
       )
     }
 
-    const db = getDb()
-    const playlistId = randomBytes(16).toString('hex')
-    db.prepare('INSERT INTO playlists (id, name) VALUES (?, ?)').run(playlistId, name)
-    
-    const playlist = db.prepare('SELECT * FROM playlists WHERE id = ?').get(playlistId)
+    const playlist = db.createPlaylist(name)
 
-    console.log('[API] Playlist created:', playlistId)
+    console.log('[API] Playlist created:', playlist.id)
     return NextResponse.json(playlist)
   } catch (error) {
     console.error('[API] Error creating playlist:', error)