// components/picker/index.js
const { formatTime } = require("../../utils/util");
Component({
  options: {
    observers: true,
    lifetimes: true
  },
  /**
   * 组件的属性列表
   */
  properties: {
    // picker类型
    type: {
      type: String,
      value: ""
    },
    // 未选择时提示
    placeholder: {
      type: Array,
      value: ["请选择"]
    },
    // 数据列表
    list: {
      type: Array,
      value: []
    },
    // 显示参数key
    rangeKey: {
      type: String,
      value: ""
    },
    // 选择下标
    index: {
      value: null
    },
    // 日期时间选择器
    dateTime: {
      type: String,
      value: null
    },
    delay: {
      type: Number,
      value: null
    },
    isAudit: {
      type: Boolean,
      value: false
    }
  },
  /**
   * 组件的初始数据
   */
  data: {
    index: null,
    //普通选择器下标
    date: null,
    //日期
    time: null //时间
  },

  /**
   * 组件的方法列表
   */
  lifetimes: {
    attached: function () {
      if (this.data.type === "date-time" && this.data.dateTime === null) {
        this.getTime();
      }
    },
    detached: function () {
      // 在组件实例被从页面节点树移除时执行
    }
  },
  observers: {
    dateTime: function (dateTime) {
      if (this.data.type === "date-time") {
        this.getTime();
      }
    }
  },
  methods: {
    // 获得传入时间或默认当前时间
    getTime() {
      var { date, time, dateTime, delay } = this.data;
      var newDateTime = null;
      if (dateTime) {
        newDateTime = dateTime.replaceAll("-", "/");
      } else if (delay != null) {
        var nowDateTime = Date.now() + delay;
        newDateTime = nowDateTime;
      } else {
        return;
      }
      date = formatTime(newDateTime, "YYYY-MM-DD");
      time = formatTime(newDateTime, "HH:NN");
      this.setData({
        date,
        time
      });
      if (date && time) {
        this.triggerEvent("change", date + " " + time + ":00");
      }
    },
    // 选择普通项
    chooseItem(e) {
      var { index } = this.data;
      index = e.detail.value;
      this.setData({
        index
      });
      this.triggerEvent("change", this.data.list[index]);
    },
    // 选择日期
    chooseDateTime(e) {
      var { date, time } = this.data;
      switch (e.currentTarget.dataset.type) {
        case "date":
          date = e.detail.value;
          this.setData({
            date
          });
          break;
        case "time":
          time = e.detail.value;
          this.setData({
            time
          });
          break;
        default:
          break;
      }
      if (date && time) {
        this.triggerEvent("change", date + " " + time + ":00");
      }
    }
  }
});