import { API_CONFIG, API_ENDPOINTS } from "@/constants/api";
import {
  ApiListResponse,
  ApiResponse,
  AppleSignInRequest,
  AppleSignInResponse,
  Country,
  FavoriteCheckResponse,
  FavoriteListResponse,
  FavoriteRequest,
  H2HData,
  League,
  LiveScoreMatch,
  Match,
  MatchDetailData,
  OddsData,
  RefreshTokenRequest,
  RefreshTokenResponse,
  SearchResult,
  Sport,
  UpcomingMatch,
  UserProfile,
} from "@/types/api";
import axios from "axios";
import { storage } from "./storage";

const apiClient = axios.create({
  baseURL: API_CONFIG.BASE_URL,
  timeout: API_CONFIG.TIMEOUT,
  headers: {
    "Content-Type": "application/json",
  },
});

apiClient.interceptors.request.use(async (config) => {
  const token = await storage.getAccessToken();
  if (token) {
    config.headers.Authorization = `Bearer ${token}`;
  }
  return config;
});

const refreshTokenApi = async (
  request: RefreshTokenRequest
): Promise<RefreshTokenResponse> => {
  try {
    const response = await apiClient.post<ApiResponse<RefreshTokenResponse>>(
      API_ENDPOINTS.REFRESH_TOKEN,
      request
    );

    if (response.data.code === 0) {
      return response.data.data;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Refresh token error:", error);
    throw error;
  }
};

apiClient.interceptors.response.use(
  (response) => response,
  async (error) => {
    const originalRequest = error.config;
    if (error.response?.status === 401 && !originalRequest._retry) {
      originalRequest._retry = true;
      try {
        const refreshTokenValue = await storage.getRefreshToken();
        if (refreshTokenValue) {
          const res = await refreshTokenApi({
            refreshToken: refreshTokenValue,
          });
          await storage.setAccessToken(res.accessToken);
          originalRequest.headers.Authorization = `Bearer ${res.accessToken}`;
          return apiClient(originalRequest);
        }
      } catch {
        await storage.clear();
      }
    }
    return Promise.reject(error);
  }
);

export const fetchSports = async (): Promise<Sport[]> => {
  try {
    const response = await apiClient.get<ApiResponse<ApiListResponse<Sport>>>(
      API_ENDPOINTS.SPORTS
    );
    if (response.data.code === 0) {
      return response.data.data.list;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch sports error:", error);
    // Do not return mock data here — rethrow to let caller handle the error
    throw error;
  }
};

export const fetchCountries = async (): Promise<Country[]> => {
  try {
    const response = await apiClient.get<ApiResponse<ApiListResponse<Country>>>(
      API_ENDPOINTS.COUNTRIES
    );
    if (response.data.code === 0) {
      return response.data.data.list;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch countries error:", error);
    throw error;
  }
};

export const fetchLeagues = async (
  sportId: number,
  countryKey: string
): Promise<League[]> => {
  try {
    const response = await apiClient.get<ApiResponse<ApiListResponse<League>>>(
      API_ENDPOINTS.LEAGUES,
      {
        params: {
          sportId,
          countryKey,
        },
      }
    );
    if (response.data.code === 0) {
      return response.data.data.list;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch leagues error:", error);
    throw error;
  }
};

export const fetchTodayMatches = async (
  sportId: number,
  date?: Date | string,
  timezone?: string
): Promise<Match[]> => {
  try {
    const params: { sportId: number; date?: string; timezone?: string } = {
      sportId,
    };

    // 如果提供了日期，格式化为 YYYY-MM-DD 格式
    if (date) {
      let dateStr: string;
      if (date instanceof Date) {
        const year = date.getFullYear();
        const month = String(date.getMonth() + 1).padStart(2, "0");
        const day = String(date.getDate()).padStart(2, "0");
        dateStr = `${year}-${month}-${day}`;
      } else {
        dateStr = date;
      }
      params.date = dateStr;
    }

    // 如果提供了时区，传给后端；不传则由后端使用本地时区
    if (timezone) {
      params.timezone = timezone;
    }

    const response = await apiClient.get<ApiResponse<ApiListResponse<Match>>>(
      API_ENDPOINTS.MATCHES_TODAY,
      {
        params,
      }
    );
    if (response.data.code === 0) {
      return response.data.data.list;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch matches error:", error);
    // Let the caller handle errors; rethrow the original error
    throw error;
  }
};

export const fetchMatchDetail = async (
  id: string
): Promise<MatchDetailData> => {
  try {
    const response = await apiClient.get<ApiResponse<MatchDetailData>>(
      API_ENDPOINTS.MATCH_DETAIL(id)
    );
    if (response.data.code === 0) {
      return response.data.data;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch match detail error:", error);
    throw error;
  }
};

export const fetchLiveScore = async (
  sportId: number,
  leagueId?: number,
  timezone?: string
): Promise<LiveScoreMatch[]> => {
  console.log("Fetching live scores with params:", {
    sportId,
    leagueId,
    timezone,
  });
  try {
    const params: { sport_id: number; league_id?: number; timezone?: string } =
      {
        sport_id: sportId,
      };

    if (leagueId) {
      params.league_id = leagueId;
    }

    if (timezone) {
      params.timezone = timezone;
    }

    const response = await apiClient.get<ApiResponse<LiveScoreMatch[]>>(
      API_ENDPOINTS.LIVESCORE,
      { params }
    );

    if (response.data.code === 0) {
      return response.data.data;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch livescore error:", error);
    throw error;
  }
};

export const fetchUpcomingMatches = async (
  sportId: number,
  leagueKey: string,
  limit: number = 50
): Promise<UpcomingMatch[]> => {
  try {
    const response = await apiClient.get<
      ApiResponse<ApiListResponse<UpcomingMatch>>
    >(API_ENDPOINTS.UPCOMING_MATCHES, {
      params: {
        sport_id: sportId,
        leagueKey,
        limit,
      },
    });

    if (response.data.code === 0) {
      return response.data.data.list;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch upcoming matches error:", error);
    throw error;
  }
};

// 获取实时赔率（足球/网球使用 LiveOdds，篮球/板球使用 Odds）
export const fetchOdds = async (
  sportId: number,
  matchId: number
): Promise<OddsData> => {
  try {
    const response = await apiClient.get<ApiResponse<OddsData>>(
      API_ENDPOINTS.ODDS,
      {
        params: {
          sport_id: sportId,
          match_id: matchId,
        },
      }
    );

    if (response.data.code === 0) {
      return response.data.data;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch odds error:", error);
    throw error;
  }
};

// 搜索联赛、球队或球员
export const fetchSearch = async (
  query: string,
  sportId?: number
): Promise<SearchResult> => {
  try {
    const params: { q: string; sportId?: number } = { q: query };
    if (sportId) {
      params.sportId = sportId;
    }

    const response = await apiClient.get<ApiResponse<SearchResult>>(
      API_ENDPOINTS.SEARCH,
      { params }
    );

    if (response.data.code === 0) {
      return response.data.data;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch search error:", error);
    throw error;
  }
};

// 获取两队/两球员之间的历史对战数据
export const fetchH2H = async (
  sportId: number,
  options: {
    firstTeamId?: number;
    secondTeamId?: number;
    firstPlayerId?: number;
    secondPlayerId?: number;
    timezone?: string;
  }
): Promise<H2HData> => {
  try {
    const params: {
      sport_id: number;
      first_team_id?: number;
      second_team_id?: number;
      first_player_id?: number;
      second_player_id?: number;
      timezone?: string;
    } = {
      sport_id: sportId,
    };

    if (options.firstTeamId) {
      params.first_team_id = options.firstTeamId;
    }
    if (options.secondTeamId) {
      params.second_team_id = options.secondTeamId;
    }
    if (options.firstPlayerId) {
      params.first_player_id = options.firstPlayerId;
    }
    if (options.secondPlayerId) {
      params.second_player_id = options.secondPlayerId;
    }
    if (options.timezone) {
      params.timezone = options.timezone;
    }

    const response = await apiClient.get<ApiResponse<H2HData>>(
      API_ENDPOINTS.H2H,
      { params }
    );

    if (response.data.code === 0) {
      return response.data.data;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch H2H error:", error);
    throw error;
  }
};

export const appleSignIn = async (
  request: AppleSignInRequest
): Promise<AppleSignInResponse> => {
  try {
    const response = await apiClient.post<ApiResponse<AppleSignInResponse>>(
      API_ENDPOINTS.APPLE_SIGNIN,
      request
    );

    if (response.data.code === 0) {
      return response.data.data;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Apple sign in error:", error);
    throw error;
  }
};

export const logout = async (): Promise<string> => {
  try {
    const response = await apiClient.post<ApiResponse<string>>(
      API_ENDPOINTS.LOGOUT
    );

    if (response.data.code === 0) {
      return response.data.data;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Logout error:", error);
    throw error;
  }
};

export const refreshToken = refreshTokenApi;

export const fetchUserProfile = async (): Promise<UserProfile> => {
  try {
    const response = await apiClient.get<ApiResponse<UserProfile>>(
      API_ENDPOINTS.USER_PROFILE
    );

    if (response.data.code === 0) {
      return response.data.data;
    }

    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch user profile error:", error);
    throw error;
  }
};

export const addFavorite = async (request: FavoriteRequest): Promise<any> => {
  try {
    const token = await storage.getAccessToken();
    if (!token) {
      // throw new Error("Please login first");
      return;
    }
    // console.log("Adding favorite with request:", request);
    const response = await apiClient.post<ApiResponse<any>>(
      API_ENDPOINTS.FAVORITES,
      request
    );
    if (response.data.code === 0) {
      return response.data.data;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Add favorite error:", error);
    throw error;
  }
};

export const removeFavorite = async (request: {
  type: string;
  typeId: string;
}): Promise<any> => {
  try {
    const token = await storage.getAccessToken();
    if (!token) {
      // throw new Error("Please login first");
      return;
    }
    console.log("Removing favorite with request:", request);
    const response = await apiClient.delete<ApiResponse<any>>(
      API_ENDPOINTS.FAVORITES,
      { data: request }
    );
    if (response.data.code === 0) {
      return response.data.data;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Remove favorite error:", error);
    throw error;
  }
};

export const checkFavorite = async (
  type: string,
  typeId: string
): Promise<FavoriteCheckResponse> => {
  try {
    const response = await apiClient.get<ApiResponse<FavoriteCheckResponse>>(
      API_ENDPOINTS.CHECK_FAVORITE,
      {
        params: { type, typeId },
      }
    );
    if (response.data.code === 0) {
      return response.data.data;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Check favorite error:", error);
    throw error;
  }
};

export const fetchFavorites = async (
  type: string,
  page: number = 1,
  pageSize: number = 20
): Promise<FavoriteListResponse> => {
  try {
    const response = await apiClient.get<ApiResponse<FavoriteListResponse>>(
      API_ENDPOINTS.FAVORITES,
      {
        params: { type, page, pageSize },
      }
    );
    if (response.data.code === 0) {
      console.log("Fetched favorites:", JSON.stringify(response.data.data));
      return response.data.data;
    }
    throw new Error(response.data.message);
  } catch (error) {
    console.error("Fetch favorites error:", error);
    throw error;
  }
};