[+] Return source-separated url

src/lib/server/songs.ts

@@ -104,7 +104,16 @@ export const getSongUrl = async (id: number | string) => {
     const level = 'exhigh'
     const filePath = path.join(CACHE_DIR, `${id}/${level}.mp3`)
     const publicUrl = `/audio/${id}/${level}.mp3`
-    if (await fs.exists(filePath)) return publicUrl
+    const vocalsPath = path.join(CACHE_DIR, `${id}/vocals.opus`)
+    const instrumentalPath = path.join(CACHE_DIR, `${id}/instrumental.opus`)
+    
+    if (await fs.exists(filePath)) {
+        return {
+            url: publicUrl,
+            vocalsUrl: (await fs.exists(vocalsPath)) ? `/audio/${id}/vocals.opus` : null,
+            instrumentalUrl: (await fs.exists(instrumentalPath)) ? `/audio/${id}/instrumental.opus` : null
+        }
+    }
 
     // Check netease api status
     if (await checkNetease() === null) throw error(500, '服务器的网易云账号坏掉了 :(')
@@ -125,7 +134,7 @@ export const getSongUrl = async (id: number | string) => {
     await fs.writeFile(filePath, Buffer.from(buffer))
     console.log(`Song ${id} cached to ${filePath}`)
 
-    return publicUrl
+    return { url: publicUrl }
 }
 
 // /////////////////////////////////////////////////////////////////////////////

src/routes/song/[id]/play/+page.svelte

@@ -80,7 +80,7 @@
     hiddenInput.addEventListener('blur', onBlur)
 
     if (data.audioUrl) {
-      musicControl = new MusicControl(data.audioUrl)
+      musicControl = new MusicControl(data.audioUrl.url)
       musicControl.setLyrics(deduplicatedLyrics)
       musicControl.start()
     }