feat(mobile): enhance download operations

mobile/ios/Podfile.lock

@@ -1,4 +1,6 @@
 PODS:
+  - background_downloader (0.0.1):
+    - Flutter
   - connectivity_plus (0.0.1):
     - Flutter
     - ReachabilitySwift
@@ -99,6 +101,7 @@ PODS:
     - Flutter
 
 DEPENDENCIES:
+  - background_downloader (from `.symlinks/plugins/background_downloader/ios`)
   - connectivity_plus (from `.symlinks/plugins/connectivity_plus/ios`)
   - device_info_plus (from `.symlinks/plugins/device_info_plus/ios`)
   - file_picker (from `.symlinks/plugins/file_picker/ios`)
@@ -137,6 +140,8 @@ SPEC REPOS:
     - Toast
 
 EXTERNAL SOURCES:
+  background_downloader:
+    :path: ".symlinks/plugins/background_downloader/ios"
   connectivity_plus:
     :path: ".symlinks/plugins/connectivity_plus/ios"
   device_info_plus:
@@ -189,6 +194,7 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/wakelock_plus/ios"
 
 SPEC CHECKSUMS:
+  background_downloader: 9f788ffc5de45acf87d6380e91ca0841066c18cf
   connectivity_plus: bf0076dd84a130856aa636df1c71ccaff908fa1d
   device_info_plus: c6fb39579d0f423935b0c9ce7ee2f44b71b9fce6
   DKImagePickerController: 946cec48c7873164274ecc4624d19e3da4c1ef3c

mobile/lib/main.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'dart:io';
 
+import 'package:background_downloader/background_downloader.dart';
 import 'package:device_info_plus/device_info_plus.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/foundation.dart';
@@ -9,6 +10,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_displaymode/flutter_displaymode.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/extensions/build_context_extensions.dart';
+import 'package:immich_mobile/utils/download.dart';
 import 'package:timezone/data/latest.dart';
 import 'package:immich_mobile/constants/locales.dart';
 import 'package:immich_mobile/services/background.service.dart';
@@ -87,6 +89,17 @@ Future<void> initApp() async {
   };
 
   initializeTimeZones();
+
+  FileDownloader().configureNotification(
+    running: const TaskNotification('Downloading media', 'file: {filename}'),
+    complete: const TaskNotification('Download finished', 'file: {filename}'),
+    progressBar: true,
+  );
+
+  FileDownloader().trackTasksInGroup(
+    downloadGroupLivePhoto,
+    markDownloadedComplete: false,
+  );
 }
 
 Future<Isar> loadDb() async {
@@ -121,6 +134,8 @@ class ImmichApp extends ConsumerStatefulWidget {
 
 class ImmichAppState extends ConsumerState<ImmichApp>
     with WidgetsBindingObserver {
+  int progress = 0;
+
   @override
   void didChangeAppLifecycleState(AppLifecycleState state) {
     switch (state) {
@@ -188,8 +203,8 @@ class ImmichAppState extends ConsumerState<ImmichApp>
 
   @override
   Widget build(BuildContext context) {
-    var router = ref.watch(appRouterProvider);
-    var immichTheme = ref.watch(immichThemeProvider);
+    final router = ref.watch(appRouterProvider);
+    final immichTheme = ref.watch(immichThemeProvider);
 
     return MaterialApp(
       localizationsDelegates: context.localizationDelegates,

mobile/lib/models/asset_viewer/download_state.model..dart

@@ -0,0 +1,109 @@
+// ignore_for_file: public_member_api_docs, sort_constructors_first
+import 'dart:convert';
+
+import 'package:background_downloader/background_downloader.dart';
+import 'package:collection/collection.dart';
+
+class DownloadInfo {
+  final String fileName;
+  final double progress;
+  // enum
+  final TaskStatus status;
+
+  DownloadInfo({
+    required this.fileName,
+    required this.progress,
+    required this.status,
+  });
+
+  DownloadInfo copyWith({
+    String? fileName,
+    double? progress,
+    TaskStatus? status,
+  }) {
+    return DownloadInfo(
+      fileName: fileName ?? this.fileName,
+      progress: progress ?? this.progress,
+      status: status ?? this.status,
+    );
+  }
+
+  Map<String, dynamic> toMap() {
+    return <String, dynamic>{
+      'fileName': fileName,
+      'progress': progress,
+      'status': status.index,
+    };
+  }
+
+  factory DownloadInfo.fromMap(Map<String, dynamic> map) {
+    return DownloadInfo(
+      fileName: map['fileName'] as String,
+      progress: map['progress'] as double,
+      status: TaskStatus.values[map['status'] as int],
+    );
+  }
+
+  String toJson() => json.encode(toMap());
+
+  factory DownloadInfo.fromJson(String source) =>
+      DownloadInfo.fromMap(json.decode(source) as Map<String, dynamic>);
+
+  @override
+  String toString() =>
+      'DownloadInfo(fileName: $fileName, progress: $progress, status: $status)';
+
+  @override
+  bool operator ==(covariant DownloadInfo other) {
+    if (identical(this, other)) return true;
+
+    return other.fileName == fileName &&
+        other.progress == progress &&
+        other.status == status;
+  }
+
+  @override
+  int get hashCode => fileName.hashCode ^ progress.hashCode ^ status.hashCode;
+}
+
+class DownloadState {
+  // enum
+  final TaskStatus downloadStatus;
+  final Map<String, DownloadInfo> taskProgress;
+  final bool showProgress;
+  DownloadState({
+    required this.downloadStatus,
+    required this.taskProgress,
+    required this.showProgress,
+  });
+
+  DownloadState copyWith({
+    TaskStatus? downloadStatus,
+    Map<String, DownloadInfo>? taskProgress,
+    bool? showProgress,
+  }) {
+    return DownloadState(
+      downloadStatus: downloadStatus ?? this.downloadStatus,
+      taskProgress: taskProgress ?? this.taskProgress,
+      showProgress: showProgress ?? this.showProgress,
+    );
+  }
+
+  @override
+  String toString() =>
+      'DownloadState(downloadStatus: $downloadStatus, taskProgress: $taskProgress, showProgress: $showProgress)';
+
+  @override
+  bool operator ==(covariant DownloadState other) {
+    if (identical(this, other)) return true;
+    final mapEquals = const DeepCollectionEquality().equals;
+
+    return other.downloadStatus == downloadStatus &&
+        mapEquals(other.taskProgress, taskProgress) &&
+        other.showProgress == showProgress;
+  }
+
+  @override
+  int get hashCode =>
+      downloadStatus.hashCode ^ taskProgress.hashCode ^ showProgress.hashCode;
+}