feat(dl): add download progress tracking and reporting

src/lib/services/deezer/downloader.ts

@@ -77,9 +77,37 @@ export async function downloadTrack(
     const totalSize = parseInt(response.headers.get('content-length') || '0');
     const isCrypted = downloadURL.includes('/mobile/') || downloadURL.includes('/media/');
 
-    // Get the response as array buffer
-    const arrayBuffer = await response.arrayBuffer();
-    const encryptedData = new Uint8Array(arrayBuffer);
+    // Stream the response with progress tracking
+    const reader = response.body!.getReader();
+    const chunks: Uint8Array[] = [];
+    let downloadedBytes = 0;
+
+    while (true) {
+      const { done, value } = await reader.read();
+      if (done) break;
+
+      chunks.push(value);
+      downloadedBytes += value.length;
+
+      // Call progress callback
+      if (onProgress && totalSize > 0) {
+        const percentage = (downloadedBytes / totalSize) * 100;
+        console.log(`[Download Progress] ${downloadedBytes}/${totalSize} bytes (${percentage.toFixed(1)}%)`);
+        onProgress({
+          downloaded: downloadedBytes,
+          total: totalSize,
+          percentage
+        });
+      }
+    }
+
+    // Combine chunks into single Uint8Array
+    const encryptedData = new Uint8Array(downloadedBytes);
+    let offset = 0;
+    for (const chunk of chunks) {
+      encryptedData.set(chunk, offset);
+      offset += chunk.length;
+    }
 
     console.log(`Downloaded ${encryptedData.length} bytes, encrypted: ${isCrypted}`);
 

src/lib/services/deezer/queueManager.ts

@@ -338,7 +338,17 @@ export class DeezerQueueManager {
           downloadURL,
           appSettings.musicFolder!,
           appSettings.deezerFormat,
-          undefined,
+          (progress) => {
+            // Update progress in queue
+            updateQueueItem(item.id, {
+              progress: progress.percentage,
+              currentTrack: {
+                title: track.title,
+                artist: track.artist,
+                progress: progress.percentage
+              }
+            });
+          },
           0,
           trackData.SNG_ID
         );