TF-32 Add domain layer of download attachment for android platform

core/lib/core.dart

@@ -8,12 +8,16 @@ export 'presentation/extensions/list_extensions.dart';
 export 'domain/extensions/datetime_extension.dart';
 export 'presentation/extensions/html_extension.dart';
 
+// Exceptions
+export 'domain/exceptions/download_file_exception.dart';
+
 // Utils
 export 'presentation/utils/theme_utils.dart';
 export 'presentation/utils/responsive_utils.dart';
 export 'presentation/utils/keyboard_utils.dart';
 export 'presentation/utils/style_utils.dart';
 export 'presentation/utils/app_toast.dart';
+export 'data/utils/device_manager.dart';
 
 // Views
 export 'presentation/views/text/slogan_builder.dart';

core/lib/data/network/dio_client.dart

@@ -1,6 +1,8 @@
 import 'package:dio/dio.dart';
 
 class DioClient {
+  static const jmapHeader = 'application/json;jmapVersion=rfc-8621';
+
   final Dio _dio;
 
   DioClient(this._dio);

core/lib/data/utils/device_manager.dart

@@ -0,0 +1,15 @@
+import 'dart:async';
+import 'dart:core';
+
+import 'package:device_info/device_info.dart';
+
+class DeviceManager {
+  final DeviceInfoPlugin _deviceInfoPlugin;
+
+  DeviceManager(this._deviceInfoPlugin);
+
+  Future<bool> isNeedRequestStoragePermissionOnAndroid() async {
+    final androidInfo = await _deviceInfoPlugin.androidInfo;
+    return androidInfo.version.sdkInt <= 28;
+  }
+}

core/lib/domain/exceptions/download_file_exception.dart

@@ -0,0 +1,31 @@
+import 'package:equatable/equatable.dart';
+
+abstract class DownloadFileException with EquatableMixin implements Exception {
+  final String message;
+
+  DownloadFileException(this.message);
+
+  @override
+  String toString() => message;
+
+  @override
+  List<Object> get props => [message];
+}
+
+class CommonDownloadFileException extends DownloadFileException {
+  CommonDownloadFileException(message) : super(message);
+
+  @override
+  List<Object> get props => [message];
+}
+
+class CancelDownloadFileException extends DownloadFileException {
+  CancelDownloadFileException(cancelMessage) : super(cancelMessage);
+
+  @override
+  List<Object> get props => [message];
+}
+
+class DeviceNotSupportedException extends DownloadFileException {
+  DeviceNotSupportedException() : super('This device is not supported, please try on Android or iOS');
+}

core/pubspec.yaml

@@ -53,6 +53,9 @@ dependencies:
   # GetX
   get: 4.1.4
 
+  # device_info
+  device_info: 2.0.2
+
 dev_dependencies:
   flutter_test:
     sdk: flutter