Initial project

packages/protocol_sdk/lib/src/data/constants/protocol_sdk_method_channel_constants.dart

@@ -0,0 +1,24 @@
+
+class ProtocolSdkMethodChannel
+{
+  // Channel Name
+  static const String channelName = 'protocol_sdk';
+
+  //---------------- Flutter call native ----------------
+
+  static const String requestPermission = 'requestPermission';
+
+  
+  //---------------- Flutter call native ----------------
+
+
+
+  //---------------- native call Flutter ----------------
+
+
+
+
+
+  //---------------- native call Flutter ----------------
+
+}

packages/protocol_sdk/lib/src/data/datasources/protocol_sdk_method_channel_datasource.dart

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+import '../../../protocol_sdk_platform_interface.dart';
+
+class ProtocolSdkMethodChannelDataSource 
+{
+ 
+  final ProtocolSdkPlatform platform;
+
+  ProtocolSdkMethodChannelDataSource(this.platform);
+
+
+  Future<String?> getPlatformVersion() async {
+    return await getPlatformVersion();
+  }
+}

packages/protocol_sdk/lib/src/data/dto/protocol_sdk_permission_status_dto.dart

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+
+/// Data Transfer Object
+/// - 只負責資料傳輸 / 解析
+/// - 結構可變
+/// - 可以依賴 JSON / platform
+class ProtocolSdkPermissionStatusDto {
+  final bool granted;
+  final bool permanentlyDenied;
+  final String? grantedAt; // 通常是 raw string
+
+  ProtocolSdkPermissionStatusDto({
+    required this.granted,
+    required this.permanentlyDenied,
+    this.grantedAt,
+  });
+
+  factory ProtocolSdkPermissionStatusDto.fromJson(
+    Map<String, dynamic> json,
+  ) {
+    return ProtocolSdkPermissionStatusDto(
+      granted: json['granted'] as bool,
+      permanentlyDenied: json['permanentlyDenied'] as bool,
+      grantedAt: json['grantedAt'] as String?,
+    );
+  }
+}

packages/protocol_sdk/lib/src/data/repositories/protocol_sdk_repository_impl.dart

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+//Repository Impl
+
+import '../../domain/repositories/protocol_sdk_repository.dart';
+import '../datasources/protocol_sdk_method_channel_datasource.dart';
+
+class ProtocolSdkRepositoryImpl implements ProtocolSdkRepository
+{
+  final ProtocolSdkMethodChannelDataSource _datasource;
+
+  const ProtocolSdkRepositoryImpl(this._datasource);
+
+  @override
+  Future<String?> platformVersion() {
+    return _datasource.getPlatformVersion();
+  }
+}