/* eslint-disable */
import axios from "axios";
import * as Lang from "../i18n";
import { loading, close, showMessage } from "../element";
const { t } = Lang.i18n;

let router;

const config = {
  baseURL: process.env.VUE_APP_BASE_URL ? "/api" : "",
  timeout: 60 * 1000,
  withCredentials: true, // Check cross-site Access-Control
};

const _axios = axios.create(config);
_axios.defaults.headers.post["Content-Type"] = "application/json;charset=UTF-8";
_axios.defaults.headers.put["Content-Type"] = "application/json;charset=UTF-8";
_axios.defaults.headers.delete["Content-Type"] = "application/json;charset=UTF-8";

export const registerBaseUrl = (url) => {
  _axios.defaults.baseURL = url;
};

export const registerRouter = (routerP) => {
  router = routerP;
};

// Add a request interceptor
_axios.interceptors.request.use(
  function (config) {
    const time = new Date().getTime().toString();
    const params = new URLSearchParams(config.params);
    if (params.toString()) {
      delEmpty(params);
      params.append("t", time);
      config.params = params;
    }
    const data = config.data;
    if (data != null && typeof data === "object") {
      delEmpty(data);
      data.t = time;
    }
    return config;
  },
  function (error) {
    return Promise.reject(error);
  }
);

function delEmpty(data) {
  if (data && data instanceof URLSearchParams) {
    for (const [k, v] of data.entries()) {
      if (!v) data.delete(k);
    }
  } else if (data && typeof data === "object") {
    for (const item in data) {
      if (data.hasOwnProperty(item)) {
        const val = data[item];
        if ((val == null || val == "null" || val == "") && val !== 0 && val !== false) {
          delete data[item];
        }
      }
    }
  }
}

// Add a response interceptor
_axios.interceptors.response.use(
  function (response) {
    return response.data;
  },
  function (error) {
    return Promise.reject(error);
  }
);

type QueryParams = URLSearchParams | Record<string, any> | ConstructorParameters<typeof URLSearchParams>[0];

export interface AxiosOptions {
  noMsg?: boolean | null;
  noLoading?: boolean | null;
  filter?: (response) => any;
  query?: QueryParams;
}

const defaultFilterResp = (resp) => {
  const isSuccess = resp.success || resp.status === "ok" || resp.status === "success" || resp.data != null;
  const isError = resp.success === false || resp.status === "error";
  if (isSuccess) {
    return resp.data ? resp.data : resp;
  } else if (isError) {
    return false;
  } else return resp;
};

export function post(url, data?, options: AxiosOptions = {}) {
  return new Promise((resolve, reject) => {
    if (!options.noLoading) {
      loading();
    }
    _axios.post(url, data).then(
      (response: any) => {
        handResponse(response, resolve, options);
      },
      (err) => {
        handError(err, reject, options);
      }
    );
  });
}

function mergeQueryParams(...params: Array<QueryParams>) {
  const res: URLSearchParams = new URLSearchParams();
  for (const param of params) {
    if (param == null) continue;
    let parsed;
    if (param instanceof URLSearchParams) {
      parsed = param;
    } else {
      parsed = new URLSearchParams(param);
    }

    parsed
      .entries()
      .filter(([k, v]) => v != null && v != "null" && v != "undefined" && v != "")
      .forEach(([k, v]) => res?.append(k, v));
  }

  return res ?? new URLSearchParams();
}

export function get(url, data?: QueryParams, options: AxiosOptions = {}) {
  return new Promise((resolve, reject) => {
    if (!options.noLoading) {
      loading();
    }
    _axios.get(url, { params: mergeQueryParams(data, options.query) }).then(
      (response: any) => {
        handResponse(response, resolve, options);
      },
      (err) => {
        handError(err, reject, options);
      }
    );
  });
}

export function put(url, data?, options: AxiosOptions = {}) {
  return new Promise((resolve, reject) => {
    if (!options.noLoading) {
      loading();
    }
    _axios.put(url, data, { params: mergeQueryParams(options.query) }).then(
      (response: any) => {
        handResponse(response, resolve, options);
      },
      (err) => {
        handError(err, reject, options);
      }
    );
  });
}

export function delate(url, data?, options: AxiosOptions = {}) {
  return new Promise((resolve, reject) => {
    if (!options.noLoading) {
      loading();
    }
    _axios({
      method: "delete",
      url: url,
      data: data,
      params: mergeQueryParams(options.query),
    }).then(
      (response: any) => {
        handResponse(response, resolve, options);
      },
      (err) => {
        handError(err, reject, options);
      }
    );
  });
}

function handResponse(response, resolve, options: AxiosOptions = {}) {
  if (!options.noLoading) {
    close();
  }

  const filterResponse = options.filter ?? defaultFilterResp;
  const result = filterResponse(response);

  if (result) {
    if (!options.noMsg && response.message) {
      showMessage("success", response.message);
    }

    resolve(result);
  } else {
    if (response.message == "session timeout") {
      router?.push("/login");
      response.message = t("http.unLogin");
    }
    if (response.message == "no permission") {
      response.message = t("http.unPermission");
    }
    if (response.message?.indexOf("no permission for ") == 0) {
      response.message = t("http.noPermission");
    }
    if (!options.noMsg && response.message) {
      showMessage("error", response.message);
    }
    response.error && console.log(response.error);
    resolve(false);
  }
}

function handError(err, reject, options: AxiosOptions = {}) {
  if (!options.noLoading) {
    close();
  }
  if (!options.noMsg) {
    showMessage("error", t("http.error"));
  }
  reject(err);
}

export function upload(file, url, data) {
  return new Promise((resolve, reject) => {
    let param = new FormData(); // 创建form对象
    param.append("file", file); // 通过append向form对象添加数据
    if (data) {
      for (const item in data) {
        if (data.hasOwnProperty(item)) {
          param.append(item, data[item]); // 添加form表单中其他数据
        }
      }
    }
    let config = {
      headers: { "Content-Type": "multipart/form-data" },
    };
    _axios.post(url, param, config).then(
      (response) => {
        handResponse(response, resolve);
      },
      (err) => {
        handError(err, reject);
      }
    );
  });
}

export function getFile(url, data?, options: AxiosOptions = {}) {
  return new Promise((resolve, reject) => {
    if (!options.noLoading) {
      loading();
    }
    _axios({
      method: "get",
      url: url, // 请求地址
      params: data, // 参数
      responseType: "blob", // 表明返回服务器返回的数据类型
    }).then(
      (response: any) => {
        handResponse(response, resolve, options);
      },
      (err) => {
        handError(err, reject, options);
      }
    );
  });
}

export function download(fileName, url, data = {}, callBack?) {
  loading();
  _axios({
    method: "get",
    url: url, // 请求地址
    params: data, // 参数
    responseType: "blob", // 表明返回服务器返回的数据类型
  }).then(
    (response: any) => {
      close();
      const reader = new FileReader() as any;
      reader.readAsText(response);
      reader.onload = function () {
        try {
          const result = JSON.parse(reader.result);
          if (typeof result === "object") {
            showMessage("error", result.message, false);
            if (callBack != null) {
              callBack(false);
            }
            return;
          }
        } catch (err) {}
        const blob = new Blob([response], {
          type: "application/octet-stream",
        });
        const navigator = window.navigator as any;
        if (navigator.msSaveOrOpenBlob) {
          navigator.msSaveBlob(blob, fileName);
        } else {
          const link = document.createElement("a");
          link.href = window.URL.createObjectURL(blob);
          link.download = fileName;
          link.click();
          window.URL.revokeObjectURL(link.href);
        }
        if (callBack != null) {
          callBack(true);
        }
      };
    },
    (err) => {
      close();
      showMessage("error", t("http.downFail"));
      if (callBack != null) {
        callBack(false);
      }
    }
  );
}