feat(flutter): 接入互动评论点赞举报

lib/core/data/models/interaction.dart

@@ -0,0 +1,70 @@
+// Author: fruit.com.cn
+
+import 'json_numbers.dart';
+
+/// 互动目标类型，契约只允许短剧与评论。
+enum InteractionTargetType {
+  drama('DRAMA'),
+  comment('COMMENT');
+
+  const InteractionTargetType(this.apiValue);
+
+  final String apiValue;
+}
+
+/// 客户端固定举报原因，后端当前未限制枚举值。
+enum ReportReason {
+  spam('SPAM'),
+  abuse('ABUSE'),
+  porn('PORN'),
+  ad('AD'),
+  other('OTHER');
+
+  const ReportReason(this.apiValue);
+
+  final String apiValue;
+}
+
+/// 一次性互动请求，供仓库和测试断言使用。
+class ReportRequest {
+  const ReportRequest({
+    required this.targetType,
+    required this.targetId,
+    required this.reasonCode,
+    this.description = '',
+  });
+
+  final InteractionTargetType targetType;
+  final String targetId;
+  final String reasonCode;
+  final String description;
+}
+
+/// 点赞切换后的服务端状态。
+class LikeToggleResult {
+  const LikeToggleResult({required this.liked, required this.count});
+
+  final bool liked;
+  final int count;
+
+  /// 计数按 Long 字符串兼容解析。
+  factory LikeToggleResult.fromJson(Map<String, dynamic> json) =>
+      LikeToggleResult(
+        liked: json['liked'] == true,
+        count: jsonToInt(json['count']),
+      );
+}
+
+/// 控制器统一返回结果；失败消息可直接展示后端 `message`。
+class OperationResult<T> {
+  const OperationResult._(this.data, this.errorMessage);
+
+  const OperationResult.success([T? data]) : this._(data, null);
+
+  const OperationResult.failure(this.errorMessage) : data = null;
+
+  final T? data;
+  final String? errorMessage;
+
+  bool get isSuccess => errorMessage == null;
+}