import 'package:networks_sdk/networks_sdk.dart';

import 'package:im_app/core/foundation/api_paths.dart';
import 'package:im_app/domain/entities/message.dart';

// ── 发送消息响应 ───────────────────────────────────────────────────────────────

/// 发送消息接口响应
class SendMessageResponse {
  final int messageId;
  final int chatIdx;
  final int sendTime;

  const SendMessageResponse({
    required this.messageId,
    required this.chatIdx,
    required this.sendTime,
  });

  factory SendMessageResponse.fromJson(Map<String, dynamic> json) =>
      SendMessageResponse(
        messageId:
            (json['message_id'] ?? json['messageId'] ?? json['id'] ?? 0)
                as int,
        chatIdx:
            (json['chat_idx'] ?? json['chatIdx'] ?? 0) as int,
        sendTime:
            (json['send_time'] ?? json['sendTime'] ?? 0) as int,
      );

  Message toEntity({
    required int chatId,
    required int sendId,
    required String content,
    required int typ,
  }) =>
      Message(
        id: messageId > 0
            ? messageId
            : -(DateTime.now().microsecondsSinceEpoch),
        messageId: messageId,
        chatId: chatId,
        chatIdx: chatIdx,
        sendId: sendId,
        content: content,
        typ: typ,
        sendTime: sendTime,
      );
}

// ── 发送消息请求 ───────────────────────────────────────────────────────────────

/// POST /app/api/chat/send-message — 发送文本消息
///
/// [typ] 消息类型：1 = 文本，详见服务端 MessageType 枚举。
/// [sendTime] Unix 时间戳（秒），由客户端生成，用于服务端去重。
class SendMessageRequest extends ApiRequestable<SendMessageResponse> {
  final int chatId;
  final String content;
  final int typ;
  final int sendTime;

  const SendMessageRequest({
    required this.chatId,
    required this.content,
    required this.typ,
    required this.sendTime,
  });

  @override
  String get path => ApiPaths.chatSendMessage;

  @override
  HttpMethod get method => HttpMethod.post;

  @override
  Map<String, dynamic> get parameters => {
        'chat_id': chatId,
        'content': content,
        'typ': typ,
        'send_time': sendTime,
      };

  @override
  SendMessageResponse? decodeResponse(dynamic response) {
    final data = (response as dynamic).data;
    if (data is! Map<String, dynamic>) return null;
    return SendMessageResponse.fromJson(data);
  }
}