import { getCartList, getCartCounts, changeCartNum, cartDel } from '../../api/order.js'
import { getProductHot, collectAll } from '../../api/store.js'

const app = getApp()
const util = require('../../utils/util.js')

Page({
  /**
   * 页面的初始数据
   */
  data: {
    parameter: {
      navbar: '1',
      return: '0',
      title: '购物车',
      color: false
    },
    navH: 0,
    cartCount: 0,
    goodsHidden: true,
    footerswitch: true,
    host_product: [],
    cartList: [],
    isAllSelect: false, //全选
    selectValue: [], //选中的数据
    selectCountPrice: 0.0,
    isGoIndex: true,
    isHidden: false
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    var that = this
    that.setData({
      navH: app.globalData.navHeight
    })
    if (app.globalData.token)
      that.setData({
        isHidden: true
      })
  },

  /**
   * input阻止冒泡
   */
  proventD: function () {},

  /**
   * 手动输入数量失焦事件
   */
  inputBlur(e) {
    if (e.detail.value < 1) {
      let index = e.currentTarget.dataset.index
      let item = this.data.cartList.valid[index]
      item.cart_num = 1
      if (item.cart_num) this.setCartNum(item.id, item.cart_num)
      let itemData = 'cartList.valid[' + index + ']'
      this.setData({
        [itemData]: item
      })
      this.switchSelect()
    }
  },

  /**
   * 关闭授权
   */
  onCloseAuto: function () {
    this.setData({
      isHidden: true
    })
  },

  subDel: function (event) {
    let that = this,
      selectValue = that.data.selectValue
    if (selectValue.length > 0)
      cartDel(selectValue).then(res => {
        that.getCartList()
        that.getCartNum()
      })
    else
      return app.Tips({
        title: '请选择产品'
      })
  },

  getSelectValueProductId: function () {
    var that = this
    var validList = that.data.cartList.valid
    var selectValue = that.data.selectValue
    var productId = []
    if (selectValue.length > 0) {
      for (var index in validList) {
        if (that.inArray(validList[index].id, selectValue)) {
          productId.push(validList[index].product_id)
        }
      }
    }
    return productId
  },

  subCollect: function (event) {
    let that = this,
      selectValue = that.data.selectValue
    if (selectValue.length > 0) {
      var selectValueProductId = that.getSelectValueProductId()
      collectAll(that.getSelectValueProductId().join(','))
        .then(res => {
          return app.Tips({
            title: res.msg,
            icon: 'success'
          })
        })
        .catch(err => {
          return app.Tips({
            title: err
          })
        })
    } else {
      return app.Tips({
        title: '请选择产品'
      })
    }
  },

  subOrder: function (event) {
    let that = this,
      selectValue = that.data.selectValue
    if (selectValue.length > 0) {
      wx.navigateTo({
        url: '/pages/order_confirm/index?cartId=' + selectValue.join(',')
      })
    } else {
      return app.Tips({
        title: '请选择产品'
      })
    }
  },

  checkboxAllChange: function (event) {
    var value = event.detail.value
    if (value.length > 0) {
      this.setAllSelectValue(1)
    } else {
      this.setAllSelectValue(0)
    }
  },

  setAllSelectValue: function (status) {
    var that = this
    var selectValue = []
    var valid = that.data.cartList.valid
    if (valid.length > 0) {
      for (var index in valid) {
        if (status == 1) {
          valid[index].checked = true
          selectValue.push(valid[index].id)
        } else valid[index].checked = false
      }
      var validData = 'cartList.valid'
      that.setData({
        [validData]: valid,
        selectValue: selectValue
      })
      that.switchSelect()
    }
  },

  checkboxChange: function (event) {
    var that = this
    var value = event.detail.value
    var valid = this.data.cartList.valid
    for (var index in valid) {
      if (that.inArray(valid[index].id, value)) valid[index].checked = true
      else valid[index].checked = false
    }
    var validData = 'cartList.valid'
    this.setData({
      [validData]: valid,
      isAllSelect: value.length == this.data.cartList.valid.length,
      selectValue: value
    })
    this.switchSelect()
  },

  inArray: function (search, array) {
    for (var i in array) {
      if (array[i] == search) {
        return true
      }
    }
    return false
  },

  switchSelect: function () {
    var that = this
    var validList = that.data.cartList.valid
    var selectValue = that.data.selectValue
    var selectCountPrice = 0.0
    if (selectValue.length < 1) {
      that.setData({
        selectCountPrice: selectCountPrice
      })
    } else {
      for (var index in validList) {
        if (that.inArray(validList[index].id, selectValue)) {
          selectCountPrice =
            Number(selectCountPrice) + Number(validList[index].cart_num) * Number(validList[index].truePrice)
        }
      }
      that.setData({
        selectCountPrice: selectCountPrice.toFixed(2)
      })
    }
  },

  subCart: function (event) {
    var that = this
    var status = false
    var index = event.currentTarget.dataset.index
    var item = that.data.cartList.valid[index]
    item.cart_num = item.cart_num - 1
    if (item.cart_num < 1) status = true
    if (item.cart_num <= 1) {
      item.cart_num = 1
      item.numSub = true
    } else {
      item.numSub = false
      item.numAdd = false
    }
    if (false == status) {
      that.setCartNum(item.id, item.cart_num, function (data) {
        var itemData = 'cartList.valid[' + index + ']'
        that.setData({
          [itemData]: item
        })
        that.switchSelect()
      })
    }
  },

  /**
   * 购物车手动填写
   */
  iptCartNum: function (e) {
    let index = e.currentTarget.dataset.index
    let item = this.data.cartList.valid[index]
    item.cart_num = e.detail.value
    if (item.cart_num) this.setCartNum(item.id, item.cart_num)
    let itemData = 'cartList.valid[' + index + ']'
    this.setData({
      [itemData]: item
    })
    this.switchSelect()
  },

  addCart: function (event) {
    var that = this
    var index = event.currentTarget.dataset.index
    var item = that.data.cartList.valid[index]
    item.cart_num = parseInt(item.cart_num) + 1
    var productInfo = item.productInfo
    if (productInfo.hasOwnProperty('attrInfo') && item.cart_num >= item.productInfo.attrInfo.stock) {
      item.cart_num = item.productInfo.attrInfo.stock
      item.numAdd = true
      item.numSub = false
    } else if (item.cart_num >= item.productInfo.stock) {
      item.cart_num = item.productInfo.stock
      item.numAdd = true
      item.numSub = false
    } else {
      item.numAdd = false
      item.numSub = false
    }
    that.setCartNum(item.id, item.cart_num, function (data) {
      var itemData = 'cartList.valid[' + index + ']'
      that.setData({
        [itemData]: item
      })
      that.switchSelect()
    })
  },

  setCartNum(cartId, cartNum, successCallback) {
    var that = this
    changeCartNum(cartId, cartNum).then(res => {
      successCallback && successCallback(res.data)
    })
  },

  getCartNum: function () {
    var that = this
    getCartCounts().then(res => {
      that.setData({
        cartCount: res.data.count
      })
    })
  },

  getCartList: function () {
    var that = this
    getCartList().then(res => {
      var cartList = res.data
      var valid = cartList.valid
      var numSub = [
        {
          numSub: true
        },
        {
          numSub: false
        }
      ]
      var numAdd = [
          {
            numAdd: true
          },
          {
            numAdd: false
          }
        ],
        selectValue = []
      if (valid.length > 0) {
        for (var index in valid) {
          if (valid[index].cart_num == 1) {
            valid[index].numSub = true
          } else {
            valid[index].numSub = false
          }
          var productInfo = valid[index].productInfo
          if (
            productInfo.hasOwnProperty('attrInfo') &&
            valid[index].cart_num == valid[index].productInfo.attrInfo.stock
          ) {
            valid[index].numAdd = true
          } else if (valid[index].cart_num == valid[index].productInfo.stock) {
            valid[index].numAdd = true
          } else {
            valid[index].numAdd = false
          }
          valid[index].checked = true
          selectValue.push(valid[index].id)
        }
      }
      that.setData({
        cartList: cartList,
        goodsHidden: cartList.valid.length <= 0 ? false : true,
        selectValue: selectValue,
        isAllSelect: valid.length == selectValue.length && valid.length
      })
      that.switchSelect()
    })
  },

  getHostProduct: function () {
    var that = this
    getProductHot().then(res => {
      that.setData({
        host_product: res.data
      })
    })
  },

  goodsOpen: function () {
    var that = this
    that.setData({
      goodsHidden: !that.data.goodsHidden
    })
  },

  manage: function () {
    var that = this
    that.setData({
      footerswitch: !that.data.footerswitch
    })
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {},

  onLoadFun: function () {
    this.getHostProduct()
    this.getCartList()
    this.getCartNum()
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
    if (app.globalData.isLog == true) {
      this.getHostProduct()
      this.getCartList()
      this.getCartNum()
      this.setData({
        goodsHidden: true,
        footerswitch: true,
        host_product: [],
        cartList: [],
        isAllSelect: false, //全选
        selectValue: [], //选中的数据
        selectCountPrice: 0.0,
        cartCount: 0,
        isHidden: true
      })
    }
  },

  unsetCart: function () {
    let that = this,
      ids = []
    for (var i = 0, len = that.data.cartList.invalid.length; i < len; i++) {
      ids.push(that.data.cartList.invalid[i].id)
    }
    cartDel(ids)
      .then(res => {
        app.Tips({
          title: '清除成功'
        })
        that.setData({
          'cartList.invalid': []
        })
      })
      .catch(res => {})
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {},

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {},

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {}
})