// components/calendarWeek/index.js
var utils = require('./util.js')
Component({
  /**
   * 组件的属性列表
   */
  properties: {

  },

  /**
   * 组件的初始数据
   */
  data: {
    policyList:[],
    noMore:false,//决定底层显示无数据的区域
    forumData:{
      page:1,
      rows:10,
      sort:1
    },
    forumList:[
      {
        postId:'daf',
        postUserName:'无名氏',
        postReply:'测试',
        jiaoshi:'2教室201',
        lastReplyTime:'8:00~9:00',
        teachter:'王忠林'
      },
      {
        postId:'daf',
        postUserName:'无名氏',
        postReply:'测试',
        jiaoshi:'2教室201',
        lastReplyTime:'8:00~9:00',
        teachter:'王忠林'
      },
      {
        postId:'daf',
        postUserName:'无名氏',
        postReply:'测试',
        jiaoshi:'2教室201',
        lastReplyTime:'8:00~9:00',
        teachter:'王忠林'
      }
    ],
    dateList: [], // 日历数据数组
    swiperCurrent: 0, // 日历轮播正处在哪个索引位置
    dateCurrent: new Date(), // 正选择的当前日期
    dateCurrentStr: '', // 正选择日期的 id
    dateMonth: '1月', // 正显示的月份
    dateListArray: ['日', '一', '二', '三', '四', '五', '六'],
  },
  ready: function () {
    var today = utils.formatTime2(new Date());
    this.setData({
      today,
    });
    var d = new Date();
    this.initDate(-5, 2, d); // 日历组件程序  -4左表示过去4周  右1表示过去一周 
  },
  /**
   * 组件的方法列表
   */
  methods: {
    onLoad: function (options){
  
    },
    tiaotime(e) {
      let data = e.detail.value.split("-")
      var d = new Date(Number(data[0]), Number(data[1]) - 1, Number(data[2]));
      this.setData({
        dateList: []
      })
      this.initDate(-5, 2, d); // 日历组件程序  -4左表示过去4周  右1表示过去一周
    },

    // 日历组件部分
    // ----------------------------
    initDate(left, right, d) {
      var month = utils.addZero(d.getMonth() + 1),
        year = utils.addZero(d.getFullYear()),
        day = utils.addZero(d.getDate());
      for (var i = left; i <= right; i++) {
        this.updateDate(utils.DateAddDay(d, i * 7)); //多少天之后的
      }
      this.setData({
        swiperCurrent: 5,
        dateCurrent: d,
        dateCurrentStr: d.getFullYear() + '-' + month + '-' + day,
        dateMonth: month + '月',
        dateYear: year + '年',
        dateCurrentStr: year + "-" + month + "-" + day,
      });
    },
    // 获取这周从周日到周六的日期
    calculateDate(_date) {
      var first = utils.FirstDayInThisWeek(_date);
      var d = {
        'month': first.getMonth() + 1,
        'days': [],
      };
      for (var i = 0; i < 7; i++) {
        var dd = utils.DateAddDay(first, i);
        var day = utils.addZero(dd.getDate()),
          year = utils.addZero(dd.getFullYear()),
          month = utils.addZero(dd.getMonth() + 1);

        d.days.push({
          'day': day,
          'id': dd.getFullYear() + '-' + month + '-' + day,
          'ids': dd.getFullYear() + ',' + month + ',' + day,
        });
      }
      return d;
    },
    // 更新日期数组数据
    updateDate(_date) {
      var week = this.calculateDate(_date);
      this.setData({
        dateList: this.data.dateList.concat(week),
      });
    },
    // 日历组件轮播切换
    dateSwiperChange(e) {
      const lastIndex = this.data.swiperCurrent,
        currentIndex = e.detail.current,
        dateList = this.data.dateList
      let flag = false,
        key = 'lastMonth' //判断是左划还是右 
      if (lastIndex > currentIndex) {
        lastIndex === 7 && currentIndex === 0 ?
          flag = true :
          null
      } else {
        lastIndex === 0 && currentIndex === 7 ?
          null :
          flag = true
      }
      if (flag) {
        key = 'nextMonth'
      }
      if (key == 'lastMonth') {
        let nowindex = currentIndex - 3;
        let uptime = currentIndex - 4;
        let a = 0;
        if (nowindex < 0) {
          nowindex = nowindex + 8;
          a = 0
        }
        if (uptime < 0) {
          uptime = uptime + 8
        }

        let seltime = dateList[nowindex].days[a].ids.split(',')
        var week = this.calculateDate(utils.formatTime(utils.DateAddDay(new Date(Number(seltime[0]), Number(seltime[1]) - 1, Number(seltime[2])), -1)));
        dateList[uptime] = week
        this.setData({
          dateList: dateList
        })

      }
      if (key == 'nextMonth') {
        let indexne = 0
        let aa = 0
        if (currentIndex == 7) { //要更新的下标
          indexne = 0
          aa = 1
        } else {
          indexne = currentIndex + 1
          aa = currentIndex + 2
        }
        if (aa == 8) {
          aa = 0
        }
        //aa 要更新的数组下标 datanex要往后查询一周的日期
        let datanex = dateList[indexne].days[6].ids.split(',')
        //获取下一周的
        var week = this.calculateDate(utils.formatTime(utils.DateAddDay(new Date(Number(datanex[0]), Number(datanex[1]) - 1, Number(datanex[2])), 1)));
        dateList[aa] = week
        this.setData({
          dateList: dateList
        })
      }
      var dDateFormat = this.data.dateList[currentIndex].days[3].ids.split(',');
      this.setData({
        swiperCurrent: currentIndex,
        dateMonth: dDateFormat[1] + '月',
        dateYear: dDateFormat[0] + "年"
      })
    },
    // 获得日期字符串
    getDateStr: function (arg) {
      if (utils.type(arg) == 'array') {
        return arr[0] + '-' + arr[1] + '-' + arr[2] + ' 00:00:00';
      } else if (utils.type(arg) == 'date') {
        return arg.getFullYear() + '-' + (arg.getMonth() + 1) + '-' + arg.getDate() + ' 00:00:00';
      } else if (utils.type(arg) == 'object') {
        return arg.year + '-' + arg.month + '-' + arg.day + ' 00:00:00';
      }
    },

    // 点击日历某日
    chooseDate(e) {
      var str = e.currentTarget.id;
      this.setData({
        dateCurrentStr: str
      });
      this.triggerEvent('mydata', {
        data: str
      })
    },
  }
})