/** 默认错误提示文案 */
const DEFAULT_MSG = "未知错误";
/** 网络异常提示文案 */
const NETWORK_MSG = "网络异常，请检查网络是否开启";

/** 暂存相关变量 */
export interface TempStore {
  defaultErrMsg: string;
  networkErrMsg: string;
  axios?: any;
}

export const _$Temp: TempStore = {
  defaultErrMsg: DEFAULT_MSG,
  networkErrMsg: NETWORK_MSG,
};

/**
 * 设置默认的 axios
 * @param ax axios 实例
 */
export function setDefaultAxios(ax: any) {
  if (ax) {
    _$Temp.axios = ax;
  }
}

/**
 * 设置默认的错误提示文案
 * @param msg 错误提示文案
 */
export function setDefaultErrMsg(msg: string) {
  if (msg) {
    _$Temp.defaultErrMsg = msg;
  }
}

/**
 * 设置默认的网络异常提示文案
 * @param msg 网络异常提示文案
 */
export function setNetworkErrMsg(msg: string) {
  if (msg) {
    _$Temp.networkErrMsg = msg;
  }
}

/**
 * 检测网络状态
 * @returns 网络是否可用
 */
export function checkNetwork(): boolean {
  if (typeof navigator === "undefined") {
    return true;
  }
  if (navigator.onLine === false) {
    return false;
  }
  const _navigator = navigator as any;
  const connection =
    _navigator.connection || _navigator.mozConnection || _navigator.webkitConnection;
  if (!connection) {
    return true;
  }
  const noNetwork =
    connection?.type === "none" || connection.downlink === 0 || connection.effectiveType === null;
  return !noNetwork;
}

/**
 * 对象转 FormData 格式
 * @param data 对象数据
 * @returns FormData 对象
 */
export function objToFormData(data: Record<string, any>): FormData {
  if (data instanceof FormData) {
    return data;
  }
  const formData = new FormData();
  Object.keys(data)?.forEach((key) => {
    formData.set(key, data[key]);
  });
  return formData;
}

/**
 * FormData 转对象
 * @param formData FormData 对象
 * @returns 普通对象
 */
export function formDataToObj(formData: FormData | any): Record<string, any> {
  if (!(formData instanceof FormData)) {
    return formData;
  }
  const tempData: Record<string, any> = {};
  for (const [key, value] of formData.entries()) {
    tempData[key] = value;
  }
  return tempData;
}