TF-654 Add DownloadController to manage list task download

lib/features/mailbox_dashboard/presentation/bindings/mailbox_dashboard_bindings.dart

@@ -63,6 +63,7 @@ import 'package:tmail_ui_user/features/mailbox_dashboard/domain/usecases/remove_
 import 'package:tmail_ui_user/features/mailbox_dashboard/domain/usecases/save_composer_cache_on_web_interactor.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/domain/usecases/save_recent_search_interactor.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/controller/advanced_filter_controller.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/controller/download/download_controller.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart';
 import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/controller/search_controller.dart';
 import 'package:tmail_ui_user/features/manage_account/domain/usecases/log_out_oidc_interactor.dart';
@@ -87,6 +88,7 @@ class MailboxDashBoardBindings extends BaseBindings {
 
   @override
   void bindingsController() {
+    Get.put(DownloadController());
     Get.put(SearchController(
       Get.find<QuickSearchEmailInteractor>(),
       Get.find<SaveRecentSearchInteractor>(),

lib/features/mailbox_dashboard/presentation/controller/download/download_controller.dart

@@ -0,0 +1,41 @@
+
+import 'package:core/utils/app_logger.dart';
+import 'package:get/get.dart';
+import 'package:model/download/download_task_id.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/model/download/download_task_state.dart';
+
+typedef UpdateDownloadTaskStateCallback = DownloadTaskState Function(DownloadTaskState currentState);
+
+class DownloadController extends GetxController {
+
+  final listDownloadTaskState = RxList<DownloadTaskState>();
+
+  bool get notEmptyListDownloadTask => listDownloadTaskState.isNotEmpty;
+
+  void addDownloadTask(DownloadTaskState task) {
+    log('DownloadController::addDownloadTask(): ${task.taskId}');
+    listDownloadTaskState.add(task);
+  }
+
+  void updateDownloadTaskByTaskId(
+      DownloadTaskId downloadTaskId,
+      UpdateDownloadTaskStateCallback updateDownloadTaskCallback,
+  ) {
+    final matchIndex = listDownloadTaskState
+        .indexWhere((task) => task.taskId == downloadTaskId);
+    if (matchIndex >= 0) {
+      listDownloadTaskState[matchIndex] = updateDownloadTaskCallback(listDownloadTaskState[matchIndex]);
+      listDownloadTaskState.refresh();
+    }
+  }
+
+  void deleteDownloadTask(DownloadTaskId taskId) {
+    log('DownloadController::deleteDownloadTask(): $taskId');
+    final matchIndex = listDownloadTaskState
+        .indexWhere((task) => task.taskId == taskId);
+    if (matchIndex >= 0) {
+      listDownloadTaskState.removeAt(matchIndex);
+      listDownloadTaskState.refresh();
+    }
+  }
+}

lib/features/mailbox_dashboard/presentation/model/download/download_task_state.dart

@@ -0,0 +1,41 @@
+
+import 'package:equatable/equatable.dart';
+import 'package:model/download/download_task_id.dart';
+import 'package:model/email/attachment.dart';
+
+class DownloadTaskState with EquatableMixin {
+  final DownloadTaskId taskId;
+  final Attachment attachment;
+  final double progress;
+  final int downloaded;
+  final int total;
+
+  DownloadTaskState({
+    required this.taskId,
+    required this.attachment,
+    this.progress = 0,
+    this.downloaded = 0,
+    this.total = 0
+  });
+
+  DownloadTaskState copyWith({
+    DownloadTaskId? taskId,
+    Attachment? attachment,
+    double? progress,
+    int? downloaded,
+    int? total
+  }) {
+    return DownloadTaskState(
+      taskId: taskId ?? this.taskId,
+      attachment: attachment ?? this.attachment,
+      progress: progress ?? this.progress,
+      downloaded: downloaded ?? this.downloaded,
+      total: total ?? this.total
+    );
+  }
+
+  double get percentDownloading => progress / 100;
+
+  @override
+  List<Object?> get props => [taskId, attachment, progress, downloaded, total];
+}