fix(dl): add retry logic for network errors and rate limits

src/lib/services/deezer/downloader.ts

@@ -24,7 +24,8 @@ export async function downloadTrack(
   downloadURL: string,
   musicFolder: string,
   format: string,
-  onProgress?: ProgressCallback
+  onProgress?: ProgressCallback,
+  retryCount: number = 0
 ): Promise<string> {
   // Generate paths
   const paths = generateTrackPath(track, musicFolder, format, false);
@@ -50,14 +51,20 @@ export async function downloadTrack(
   console.log('Temp path:', paths.tempPath);
 
   try {
-    // Fetch the track with streaming
+    // Fetch the track with timeout
+    const controller = new AbortController();
+    const timeoutId = setTimeout(() => controller.abort(), 60000); // 60 second timeout
+
     const response = await fetch(downloadURL, {
       method: 'GET',
       headers: {
         'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36'
-      }
+      },
+      signal: controller.signal
     });
 
+    clearTimeout(timeoutId);
+
     if (!response.ok) {
       throw new Error(`HTTP error! status: ${response.status}`);
     }
@@ -100,7 +107,7 @@ export async function downloadTrack(
     console.log('Download complete!');
     return finalPath;
 
-  } catch (error) {
+  } catch (error: any) {
     // Clean up temp file on error
     try {
       if (await exists(paths.tempPath)) {
@@ -110,6 +117,18 @@ export async function downloadTrack(
       console.error('Error cleaning up temp file:', cleanupError);
     }
 
+    // Retry on network errors or timeout (max 3 retries)
+    const networkErrors = ['ECONNABORTED', 'ECONNREFUSED', 'ECONNRESET', 'ENETRESET', 'ETIMEDOUT'];
+    const isNetworkError = error.code && networkErrors.includes(error.code);
+    const isTimeout = error.name === 'AbortError';
+
+    if ((isNetworkError || isTimeout) && retryCount < 3) {
+      const errorType = isTimeout ? 'timeout' : error.code;
+      console.log(`[DEBUG] Download ${errorType}, waiting 2s before retry (${retryCount + 1}/3)...`);
+      await new Promise(resolve => setTimeout(resolve, 2000));
+      return downloadTrack(track, downloadURL, musicFolder, format, onProgress, retryCount + 1);
+    }
+
     throw error;
   }
 }