Feature/delete downloads (#773)

Author: elias001011

lib/localization/app_en.arb

@@ -57,6 +57,8 @@
   "dateAdded": "Date Added",
   "default_": "Default",
   "delete": "Delete",
+  "deleteDownloads": "Delete downloads",
+  "deleteDownloadsQuestion": "Are you sure you want to delete all downloads?",
   "deleteFolder": "Delete folder",
   "deleteFolderQuestion": "Are you sure you want to delete this folder? Playlists inside will be moved to the main library.",
   "deletePlaylist": "Delete playlist",
@@ -65,6 +67,7 @@
   "downloadCancelled": "Download cancelled",
   "downloadFailed": "Download failed",
   "downloadPlaylist": "Download playlist",
+  "downloadsDeleted": "Downloads deleted successfully",
   "dynamicColor": "Dynamic accent color (Android 12+)",
   "editPlaylist": "Edit playlist",
   "emptyFolderMsg": "This folder is empty. Add playlists to organize your music.",
@@ -217,4 +220,4 @@
   "userPlaylists": "User playlists",
   "yes": "Yes",
   "youtubePlaylistLinkOrId": "YouTube playlist link or ID"
-}
+}

lib/screens/settings_page.dart

@@ -27,6 +27,7 @@ import 'package:musify/main.dart';
 import 'package:musify/screens/search_page.dart';
 import 'package:musify/services/common_services.dart';
 import 'package:musify/services/data_manager.dart';
+import 'package:musify/services/playlist_download_service.dart';
 import 'package:musify/services/router_service.dart';
 import 'package:musify/services/settings_manager.dart';
 import 'package:musify/services/update_manager.dart';
@@ -313,6 +314,28 @@ class SettingsPage extends StatelessWidget {
             },
           ),
         ),
+        CustomBar(
+          context.l10n!.deleteDownloads,
+          FluentIcons.delete_24_filled,
+          onTap: () => _showConfirmationDialog(
+            context: context,
+            confirmationMessage: context.l10n!.deleteDownloadsQuestion,
+            submitMessage: context.l10n!.delete,
+            isDangerous: true,
+            onSubmit: () async {
+              try {
+                await offlinePlaylistService.deleteAllDownloads();
+                if (context.mounted) {
+                  showToast(context, context.l10n!.downloadsDeleted);
+                }
+              } catch (e) {
+                if (context.mounted) {
+                  showToast(context, context.l10n!.error);
+                }
+              }
+            },
+          ),
+        ),
         CustomBar(
           context.l10n!.backupUserData,
           FluentIcons.cloud_sync_24_filled,
@@ -718,13 +741,16 @@ class SettingsPage extends StatelessWidget {
     required BuildContext context,
     required String confirmationMessage,
     required VoidCallback onSubmit,
+    String? submitMessage,
+    bool isDangerous = false,
   }) {
     showDialog(
       context: context,
       builder: (BuildContext context) {
         return ConfirmationDialog(
-          submitMessage: context.l10n!.clear,
+          submitMessage: submitMessage ?? context.l10n!.clear,
           confirmationMessage: confirmationMessage,
+          isDangerous: isDangerous,
           onCancel: () => Navigator.of(context).pop(),
           onSubmit: () {
             Navigator.of(context).pop();

lib/services/playlist_download_service.dart

@@ -23,13 +23,15 @@
 
 import 'dart:async';
 import 'dart:collection';
+import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:hive/hive.dart';
 import 'package:musify/extensions/l10n.dart';
 import 'package:musify/main.dart';
 import 'package:musify/services/common_services.dart';
 import 'package:musify/services/data_manager.dart';
+import 'package:musify/services/io_service.dart';
 import 'package:musify/services/playlists_manager.dart';
 import 'package:musify/utilities/flutter_toast.dart';
 
@@ -404,6 +406,40 @@ class OfflinePlaylistService {
     }
   }
 
+  Future<void> deleteAllDownloads() async {
+    try {
+      final tracksDir = Directory('$applicationDirPath/${FilePaths.tracksDir}');
+      final artworksDir =
+          Directory('$applicationDirPath/${FilePaths.artworksDir}');
+
+      if (await tracksDir.exists()) {
+        await tracksDir.delete(recursive: true);
+      }
+      if (await artworksDir.exists()) {
+        await artworksDir.delete(recursive: true);
+      }
+
+      await FilePaths.ensureDirectoriesExist();
+
+      userOfflineSongs.clear();
+      currentOfflineSongsLength.value = 0;
+
+      offlinePlaylists.value = [];
+
+      unawaited(addOrUpdateData('userNoBackup', 'offlineSongs', []));
+      unawaited(addOrUpdateData('userNoBackup', 'offlinePlaylists', []));
+
+      logger.log('All downloads deleted successfully');
+    } catch (e, stackTrace) {
+      logger.log(
+        'Error deleting all downloads',
+        error: e,
+        stackTrace: stackTrace,
+      );
+      rethrow;
+    }
+  }
+
   void cleanupProgressNotifier(String playlistId) {
     try {
       if (downloadProgressNotifiers.containsKey(playlistId)) {