import 'package:dio/dio.dart';
import 'package:maibu_satabot_v2/core/consts/http_api_consts.dart';
import 'package:maibu_satabot_v2/core/app/app_user_cubit.dart';
import 'package:maibu_satabot_v2/core/di/injection.dart';
import 'package:maibu_satabot_v2/features/auth/presentation/bloc/auth_cubit.dart';

class DioClient {
  static Dio create() {
    final dio = Dio(
      BaseOptions(
        baseUrl: HttpApiConsts.baseUrl,
        connectTimeout: const Duration(seconds: 20),
        receiveTimeout: const Duration(seconds: 20),
        headers: {'Content-Type': 'application/json'},
      ),
    );

    dio.interceptors.add(
      LogInterceptor(
        requestBody: true,
        responseBody: true,
        requestHeader: true,
      ),
    );

    dio.interceptors.add(
      InterceptorsWrapper(
        onRequest: (options, handler) {
          final userCubit = sl<AppUserCubit>();
          final token = userCubit.state.user?.token;

          if (token != null && token.isNotEmpty) {
            options.headers['Authorization'] = 'Bearer $token';
          }

          return handler.next(options);
        },

        onResponse: (response, handler) {
          if (response.data is Map<String, dynamic>) {
            final code = response.data['code'];
            if (code == 401 || code == 403) {
              // 🔥 仅在当前确实处于登录态时，才把 401 当作「登录过期」弹窗。
              // 退出登录过程中 AppUserCubit.user 已被清为 null，此时残留/竞态请求
              // 返回的 401 不应再打扰用户（人已经在退出了），否则会误弹「登录已过期」。
              if (sl<AppUserCubit>().state.user != null) {
                print(
                  '>>> [DIO] 🚨🚨🚨 收到业务错误码 $code，触发 Token 过期处理！URL: ${response.requestOptions.uri}，时间: ${DateTime.now()}',
                );
                try {
                  sl<AuthCubit>().tokenExpired();
                } catch (ex) {}
              }
            }
          }
          return handler.next(response);
        },

        onError: (DioException e, handler) async {
          if (e.response?.statusCode == 401 || e.response?.statusCode == 403) {
            // 🔥 同上：已退出登录（user==null）时不再触发过期弹窗
            if (sl<AppUserCubit>().state.user != null) {
              print(
                '>>> [DIO] 🚨🚨🚨 收到 HTTP ${e.response?.statusCode}，触发 Token 过期处理！URL: ${e.requestOptions.uri}，时间: ${DateTime.now()}',
              );
              try {
                sl<AuthCubit>().tokenExpired();
              } catch (ex) {}
            }
          }

          return handler.next(e);
        },
      ),
    );

    return dio;
  }
}