// 日期格式化

import {encrypt,decrypt}  from '../utils/des2.js'
import constant from './constant.js';

/**
* 格式化时间
* formatDateTimeStr(strDate, 'yyyy-MM-dd');
* @param strDate（中国标准时间、时间戳等）
* @param strFormat（返回格式）
*/
export const formatDateTimeStr=(strDate: any, strFormat?: any)=>{
  if (!strDate){ return; }
  if (!strFormat){ strFormat = 'yyyy-MM-dd HH:mm:ss'; }
  switch (typeof strDate) {
  case 'string':
    strDate = new Date(strDate.replace(/-/, '/'));
    break;
  case 'number':
    strDate = new Date(strDate);
    break;
  }
  if (strDate instanceof Date){
  const dict: any = {
    yyyy: strDate.getFullYear(),
    M: strDate.getMonth() + 1,
    d: strDate.getDate(),
    H: strDate.getHours(),
    m: strDate.getMinutes(),
    s: strDate.getSeconds(),
    MM: ('' + (strDate.getMonth() + 101)).substr(1),
    dd: ('' + (strDate.getDate() + 100)).substr(1),
    HH: ('' + (strDate.getHours() + 100)).substr(1),
    mm: ('' + (strDate.getMinutes() + 100)).substr(1),
    ss: ('' + (strDate.getSeconds() + 100)).substr(1),
  };
  return strFormat.replace(/(yyyy|MM?|dd?|HH?|mm?|ss?)/g, function () {
    return dict[arguments[0]];
  });
  }
}

export const formatTime = (date?: Date) => {
  if(!date){
    date = new Date();
  }
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  const hour = date.getHours()
  const minute = date.getMinutes()
  const second = date.getSeconds()

  return (
    [year, month, day].map(formatNumber).join('-') +
    ' ' +
    [hour, minute, second].map(formatNumber).join(':')
  )
 
}

export const formatDate = (date?: Date) => {
  if(!date){
    date = new Date();
  }
  const year = date.getFullYear();
  const month = date.getMonth() + 1;
  const day = date.getDate();
  let datestr = [year, month, day].map(formatNumber).join('-')
  return datestr;
}

export const formatTimeStr = (date?: Date) => {
  if(!date){
    date = new Date();
  }
  const hour = date.getHours();
  const minute = 0;
  // return (
  //   [year, month, day].map(formatNumber).join('/') +
  //   ' ' +
  //   [hour, minute, second].map(formatNumber).join(':')
  // )
  let datestr = [hour, minute].map(formatNumber).join(':');
  console.log(datestr);
  return datestr;
}
// 数字格式化
const formatNumber = (n: number) => {
  const s = n.toString()
  return s[1] ? s : '0' + s
}

export const dateChange=(num = 1,date?:Date) =>{
  let dateStr = ""
  if (!date) {
    date = new Date();//没有传入值时,默认是当前日期
    dateStr = date.getFullYear() + '-' + (date.getMonth() + 1) + '-' + date.getDate();
  }
  dateStr += " 00:00:00";//设置为当天凌晨12点
  let dateNum = Date.parse(dateStr)/1000;//转换为时间戳
  dateNum += (86400) * num;//修改后的时间戳
  var newDate = new Date(dateNum* 1000);//转换为时间
  return newDate.getFullYear() + '-' + (newDate.getMonth() + 1) + '-' + newDate.getDate();
}

// URL参数处理
const getQueryString = (params: any):string => {
  let paramStrings = [];

  for (let key in params) {
    paramStrings.push(key + '=' + params[key]);
  }

  return paramStrings.length > 0 ? '?' + paramStrings.join('&') : '';
}

// Base URL (注意：不要以 / 结尾)
  export const LOGIN_URL = "http://192.168.1.107:8085";
  export const BASE_URL = 'http://zydh.gexuejy.com:8088/'
 //export const BASE_URL = "https://gl.tsrlsf.com:13180";
 export const  buttonClicked= (self:any) =>{
 self.setData({
   buttonClicked: true
 })
 setTimeout(function () {
   self.setData({
     buttonClicked: false
   })
 }, 1500)
}


// 发送请求
export const fetch = (option: any):Promise<any> => {
  return new Promise((resolve, reject) => {
    // URL 处理
    let url = option.url || '';
    option.url = (url.indexOf('http://') != -1 || url.indexOf('https://') != -1) ? url : BASE_URL + url;
    
    // 处理 QueryString
    if (option.params) {
      let queryString = getQueryString(option.params);
      option.url = option.url + queryString;
    }

    // 请求头
    let headers = option.headers || {};
    let token = wx.getStorageSync('SYS_TOKEN');

    // 填充 TOKEN
    if (!token) {
      wx.showToast({ title: '当前用户尚未登录', icon: 'none' });
      reject();
    }
    
    headers['Authorization'] = "Bearer " + token;
    option.header = headers;    // 兼容性处理：umi request 的请求头参数是带s的（headers），小程序的是不带s的（header）

    // 发起请求
    wx.request({
      ...option,
      success: (res:any) => {
        if (res.data.code === 10010) {
          wx.showToast({
            title: '用户凭证过期，请重新登录',
            icon: "none"
          });
        }

        // 同时兼容回调函数和 Promise 两种写法
        if (option.success) {
          if (option.getReponse) {
            option.success(res);
          } else {
            option.success(res.data);
          }
        }

        if (option.getReponse) {
          resolve(res);
        } else {
          resolve(res.data);
        }
      },
      fail: (err) => {
        // 同时兼容回调函数和 Promise 两种写法
        if (option.fail) {
          option.fail(err);
        }

        reject(err);
      }
    })
  });
}
export  const  genToken = (wechatID?:string)=>{
  let randomStr = getRandomString(20)
  let nowStr = formatTime();
  let userid = wx.getStorageSync(constant.WECHATID)
  if(wechatID){
    userid = wechatID;
  }  
  if(!userid){
    wx.showModal({title:"token生成失败，请联系管理员！",showCancel:false})
  }
  let token = randomStr.concat(";",nowStr,";",userid);
  // console.log("token",token)
  let tokenEncode = encrypt(token);
  return tokenEncode;

}
/**
 * 随机生成字符串
 * @param len 指定生成字符串长度
 */
 function getRandomString(len:number){
  let _charStr = 'abacdefghjklmnopqrstuvwxyzABCDEFGHJKLMNOPQRSTUVWXYZ0123456789',
      min = 0, 
      max = _charStr.length-1, 
      _str = '';                    //定义随机字符串 变量
  //判断是否指定长度，否则默认长度为15
  len = len || 15;
  //循环生成字符串
  for(var i = 0, index; i < len; i++){
      index = (function(randomIndexFunc, i){         
                  return randomIndexFunc(min, max, i, randomIndexFunc);
              })(function(min, max, i, _self){
                  let indexTemp = Math.floor(Math.random()*(max-min+1)+min),
                      numStart = _charStr.length - 10;
                  if(i==0&&indexTemp >=numStart){
                      indexTemp = _self(min, max, i, _self);
                  }
                  return indexTemp ;
              }, i);
      _str += _charStr[index];
  }
  return _str;
}