// pages/message/index.js
const util = require('../../../utils/util')
const math = require('../../../utils/math')

Component({
  options: {
    addGlobalClass: true,
    multipleSlots: true
  },
  properties: {
    form: { type: Object, value: null },
    item: { type: Object, value: null },
    index: { type: Number, value: 0 },
    list: { type: Array, value: [] },
    status: { type: Number, value: 0 }
  },
  data: {
    visible: false,
    focus: 0
  },
  methods: {
    showCategory: function(){
      this.setData({ visible: true })
    },
    onConfirm: function(e){
      this.data.cIndex = e.currentTarget.dataset.index
      var nowItem = this.data.list[this.data.cIndex]
      for (var i = 0; i < this.data.form.productCategoryInfos.length; i++) {
        if (this.data.form.productCategoryInfos[i].productId == nowItem.id){
          this.setData({ visible: false })
          util.showToast('纸品已经存在，请不要重复添加')
          return
        }
      }
      this.data.item.productId = nowItem.id
      this.data.item.settleUnitPrice = nowItem.defaultUnitPrice
      this.data.item.highestUnitPrice = nowItem.highestUnitPrice
      this.data.item.lowestUnitPrice = nowItem.lowestUnitPrice
      this.data.item.productCategoryName = nowItem.name
      this.statAmount()
      wx.nextTick(() => {
        this.triggerEvent('change', {index: this.data.index, item: this.data.item });
      })
    },
    onHide: function(){
      this.setData({ visible: false })
    },
    bindInput: function (e) {
      this.data.item[e.currentTarget.id] = e.detail
      if(e.currentTarget.id == 'deductPercent'){
        if(util.isEmpty(e.detail)){
          this.data.item.deductWeight = null
          this.data.item.deductPercent = null
        } else {
          this.data.item.deductWeight = math.divide(math.times(this.data.item.netWeight, Number(e.detail)), 100).toFixed(2)
        }
        this.statAmount()
      } else if(e.currentTarget.id == 'deductWeight'){
        if(util.isEmpty(e.detail)){
          this.data.item.deductWeight = null
          this.data.item.deductPercent = null
        } else {
          this.data.item.deductPercent = math.times(math.divide(Number(e.detail), this.data.item.netWeight), 100).toFixed(2)
        }
        this.statAmount()
      } else if(e.currentTarget.id == 'settleUnitPrice'){
        this.statAmount()
      }
      wx.nextTick(() => {
        this.triggerEvent('change', {index: this.data.index, item: this.data.item});
      })
    },
    statAmount: function(){
      this.data.item.settleWeight = this.data.item.netWeight
      if(!util.isEmpty(this.data.item.deductWeight)){
        this.data.item.settleWeight = math.minus(this.data.item.netWeight, this.data.item.deductWeight)
      }
      if(!util.isEmpty(this.data.item.settleUnitPrice) && Number(this.data.item.settleUnitPrice) > 0){
        this.data.item.settlePrice = math.times(this.data.item.settleWeight, this.data.item.settleUnitPrice)
      } else {
        this.data.item.settlePrice = null
      }
      this.setData({ item: this.data.item, visible: false, cIndex: this.data.cIndex })
    },
    changeDeductType: function(e){
      var type = Number(e.currentTarget.dataset.type)
      this.setData({ ['item.deductType']: type, focus: type })
    }
  }

})