const uploadJS = require('../../mixin/upload.js')
const { postAddProduct, postModifyProduct, getProductDetail } = require('./api/index')
const { getProductCategoryList, getProductBrandList } = require('../../api/common')
const { formatTs, yuan2Fen, fen2Yuan, getTs } = require('../../utils/util')
const minDate = new Date().getTime()
const objMinDate = formatTs(minDate)
const app = getApp()

Page({

  /**
   * 页面的初始数据
   */
  data: {
    form: {
      'product_img_url': [], // 商品主图
      'product_rotation_img_list': [], // 商品轮播图
      'product_detail_img_list': [], // 详情图
      'product_title': '', // 商品标题
      'product_desc': '', // 商品简介
      'product_category_id': {
        'category_name': '',
        'id': ''
      }, // 分类ID
      'product_brand_id': {
        'brand_name': '',
        'id': ''
      }, // 品牌ID
      'product_spec': '', // 规格
      'product_unit': '', // 单位
      'product_all_price': '', // 批发价
      'product_price': '', // 零售价
      'product_count': '', // 库存
      'product_sale_at': '现货' // 预售时间(0代表预售)
    },
    product_img_url_max: 1,
    product_rotation_img_list_max: 5,
    product_detail_img_list_max: 5,
    booCategory: false,
    categoryInDefaultIndex: 0,
    categoryList: [],
    booBrand: false,
    brandInDefaultIndex: 0,
    brandList: [],
    booUnit: false,
    unitInDefaultIndex: 0,
    unitInColumns: [],
    booSaleAtType: false,
    saleAtType: '0',
    booSaleAt: false,
    minDate: minDate,
    maxDate: new Date(objMinDate.YYYY + 5, 11, 31).getTime(),
    currentDate: new Date().getTime(),
    productStatus: [
      {
        name: '下架',
        value: 0
      },
      {
        name: '上架',
        value: 1
      }
    ],
    productCheckStatus: 0 // 0未审核 1审核成功 2审核失败
  },

  /**
   * 生命周期函数--监听页面加载
   */
  async onLoad(options) {
    const { product_id } = options

    await this.fetchProductCategoryList()
    await this.fetchProductBrandList()
    if (product_id) {
      this.setData({
        'form.id': product_id
      }, () => {
        this.fetchProductDetail()
      })
      wx.setNavigationBarTitle({
        title: '产品编辑'
      })
    } else {
      wx.setNavigationBarTitle({
        title: '产品新增'
      })

      try {
        const response = await wx.getStorage({ key: app.globalData.businessGoodsEditsStorageKey })
        if (response.errMsg === 'getStorage:ok' && /^{/.test(response.data)) {
          this.setForm(JSON.parse(response.data))
        }
      } catch (err) {}
    }
    app.fetchSystemConfigCallback = () => {
      this.setUnitInColumns()
    }
  },

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

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow() {
    this.setUnitInColumns()
  },

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

  },

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

  },
  // 获取商品分类
  async fetchProductCategoryList() {
    try {
      const { status, data, msg } = await getProductCategoryList()
      if (status) {
        this.setData({
          categoryList: data.map(item => {
            return {
              ...item,
              text: item.category_name
            }
          })
        })
      } else {
        wx.showToast({
          title: msg,
          icon: 'none'
        })
      }
    } catch (err) {}
  },
  // 获取品牌
  async fetchProductBrandList() {
    try {
      const { status, data, msg } = await getProductBrandList()
      if (status) {
        this.setData({
          brandList: data.map(item => {
            return {
              ...item,
              text: item.brand_name
            }
          })
        })
      } else {
        wx.showToast({
          title: msg,
          icon: 'none'
        })
      }
    } catch (err) {}
  },
  async fetchProductDetail() {
    try {
      const { status, data, msg } = await getProductDetail(this.data.form.id)
      if (status) {
        this.setForm(data)
      } else {
        wx.showToast({
          title: msg,
          icon: 'none'
        })
      }
    } catch (err) {}
  },
  ...uploadJS,
  uploadCallBack(res) {
    const that = this
    const temp = res.map(item => {
      return {
        'url': item.url,
        'formkey': item.formkey
      }
    })
    let tempForm = {}
    let formkey = ''
    if (temp.length > 0) {
      formkey = temp[0].formkey
    }

    switch (formkey) {
      case 'product_img_url':
        tempForm[`form.${formkey}[0]`] = temp[0]
        break
      case 'product_rotation_img_list':
      case 'product_detail_img_list':
        const formkeyData = this.data.form[formkey]
        tempForm[`form.${formkey}`] = formkeyData.concat(...temp)
        break
      default:
    }

    if (Object.keys(tempForm).length > 0) {
      this.setData(tempForm, () => {
        that.updateBusinessGoodsEditsDataOfStorage(formkey, that.data.form[formkey].map(item => item.url))
      })
    }
  },
  categoryShow() {
    this.setData({
      booCategory: true
    })
  },
  categoryHide() {
    if (this.data.categoryList.length > 0) {
      this.selectComponent('#picker-category').setIndexes([this.data.categoryInDefaultIndex])
    }

    this.setData({
      booCategory: false
    })
  },
  categoryConfirm(event) {
    const { value, index } = event.detail

    this.setData({
      'form.product_category_id': value,
      categoryInDefaultIndex: index
    }, () => {
      this.updateBusinessGoodsEditsDataOfStorage('product_category_id', value.id)
    })

    this.categoryHide()
  },
  brandShow() {
    this.setData({
      booBrand: true
    })
  },
  brandHide() {
    if (this.data.brandList.length > 0) {
      this.selectComponent('#picker-brand').setIndexes([this.data.brandInDefaultIndex])
    }

    this.setData({
      booBrand: false
    })
  },
  brandConfirm(event) {
    const { value, index } = event.detail

    this.setData({
      'form.product_brand_id': value,
      brandInDefaultIndex: index
    }, () => {
      this.updateBusinessGoodsEditsDataOfStorage('product_brand_id', value.id)
    })

    this.brandHide()
  },
  unitShow() {
    this.setData({
      booUnit: true
    })
  },
  unitHide() {
    if (this.data.unitInColumns.length > 0) {
      this.selectComponent('#picker-unit').setIndexes([this.data.unitInDefaultIndex])
    }

    this.setData({
      booUnit: false
    })
  },
  unitConfirm(event) {
    const { value, index } = event.detail

    this.setData({
      'form.product_unit': value,
      unitInDefaultIndex: index
    }, () => {
      this.updateBusinessGoodsEditsDataOfStorage('product_unit', value)
    })

    this.unitHide()
  },
  setFormValue(event) {
    const { value } = event.detail
    const { formkey } = event.target.dataset
    let tempForm = {}

    switch (formkey) {
      case 'product_title':
      case 'product_desc':
      case 'product_spec':
        tempForm[`form.${formkey}`] = value
        break
      case 'product_all_price':
      case 'product_price':
        tempForm[`form.${formkey}`] = value.replace(/^0[0-9]*/, '0').replace(/^\D*(\d*(?:\.\d{0,2})?).*$/g, '$1')
        break
      case 'product_count':
        tempForm[`form.${formkey}`] = value.replace(/^0[0-9]*/, '0')
        break
      default:
    }

    this.setData(tempForm, () => {
      this.updateBusinessGoodsEditsDataOfStorage(formkey, this.data.form[formkey])
    })
  },
  saleAtTypeShow() {
    this.setData({ booSaleAtType: true })
  },
  saleAtTypeHide() {
    let tempForm = {}
    tempForm['booSaleAtType'] = false

    if (this.data.saleAtType === '0') {
      tempForm['form.product_sale_at'] = '现货'
    } else {
      tempForm['form.product_sale_at'] = ''
      tempForm['booSaleAt'] = true
    }

    this.setData(tempForm, () => {
      this.updateBusinessGoodsEditsDataOfStorage('product_sale_at', 0)
    })
  },
  handleSaleAtType(e) {
    const { type } = e.currentTarget.dataset

    this.setData({
      saleAtType: type
    }, () => {
      this.saleAtTypeHide()
    })
  },
  saleAtHide() {
    this.setData({
      booSaleAt: false
    })
  },
  saleAtConfirm(event) {
    const { YYYY, MM, DD } = formatTs(event.detail)

    this.setData({
      currentDate: event.detail,
      'form.product_sale_at': `${YYYY}年${MM}月${DD}日`
    }, () => {
      this.updateBusinessGoodsEditsDataOfStorage('product_sale_at', getTs(this.data.form.product_sale_at, 'YYYY年MM月DD日', 's'))
    })

    this.saleAtHide()
  },
  getForm() {
    const {
      product_img_url,
      product_rotation_img_list,
      product_detail_img_list,
      product_title,
      product_desc,
      product_category_id,
      product_brand_id,
      product_spec,
      product_unit,
      product_all_price,
      product_price,
      product_count,
      product_sale_at
    } = this.data.form

    return {
      product_img_url: product_img_url.map(item => item.url).join(''),
      product_rotation_img_list: product_rotation_img_list.map(item => item.url),
      product_detail_img_list: product_detail_img_list.map(item => item.url),
      product_title,
      product_desc,
      product_category_id: product_category_id.id,
      product_brand_id: product_brand_id.id,
      product_spec,
      product_unit,
      product_all_price: yuan2Fen(product_all_price),
      product_price: yuan2Fen(product_price),
      product_count,
      product_sale_at: product_sale_at === '现货' ? 0 : (product_sale_at ? getTs(product_sale_at, 'YYYY年MM月DD日', 's') : '')
    }
  },
  verify() {
    let errorList = []
    const {
      product_img_url,
      product_rotation_img_list,
      product_detail_img_list,
      product_title,
      product_desc,
      product_category_id,
      product_brand_id,
      product_spec,
      product_unit,
      product_count,
      product_sale_at
    } = this.getForm()

    if (!product_img_url) {
      errorList.push('请上传商品主图')
    }
    if (!product_rotation_img_list) {
      errorList.push('请上传商品轮播图')
    }
    if (!product_detail_img_list) {
      errorList.push('请上传商品详情图')
    }
    if (!product_title) {
      errorList.push('请输入商品标题')
    }
    if (!product_desc) {
      errorList.push('请输入商品简介')
    }
    if (!product_category_id) {
      errorList.push('请选择商品分类')
    }
    if (!product_brand_id) {
      errorList.push('请选择商品品牌')
    }
    if (!product_spec) {
      errorList.push('请输入商品规格')
    }
    if (!product_unit) {
      errorList.push('请选择商品单位')
    }
    if (!(this.data.form.product_all_price)) {
      errorList.push('请输入批发价')
    }
    if (!(this.data.form.product_price)) {
      errorList.push('请输入零售价')
    }
    if (!product_count) {
      errorList.push('请输入库存')
    }

    if (product_sale_at !== 0 && !product_sale_at) {
      errorList.push('请选择预售时间')
    }

    return errorList
  },
  async onSubmit(e) {
    const temp = this.getForm()
    const verifyList = this.verify()

    if (verifyList.length) {
      wx.showToast({
        title: verifyList[0],
        icon: 'none'
      })
      return
    }
    try {
      let res = {}
      if (this.data.form.id) {
        res = await postModifyProduct({ ...temp, id: this.data.form.id })
      } else {
        res = await postAddProduct(temp)
      }
      const { status, msg } = res
      if (status) {
        wx.navigateBack({
          delta: 1
        })
      } else {
        wx.showToast({
          title: msg,
          icon: 'none'
        })
      }
    } catch (err) {}
  },
  setUnitInColumns() {
    const { product_unit_list } = app.globalData.objSystemConfig

    this.setData({
      unitInColumns: Array.isArray(product_unit_list) && product_unit_list.length > 0 ? product_unit_list : []
    })
  },
  setForm(data) {
    let temp = {}
    for (let key in data) {
      let value = data[key]
      if ((Array.isArray(value) && value.length >= 1) || (Object.prototype.toString.call(value) === '[object Object]') || (typeof value === 'string' && value) || typeof value === 'number') {
        if (key === 'product_img_url') {
          value = [
            {
              'formkey': key,
              'url': Array.isArray(value) ? value.join('') : value
            }
          ]
        }
        if (key === 'product_rotation_img_list' || key === 'product_detail_img_list') {
          value = (Array.isArray(value) ? value : JSON.parse(value)).map(item => {
            return {
              'formkey': key,
              'url': item
            }
          })
        }

        if (key === 'product_category_id') {
          const category = this.data.categoryList.filter(item => item.id === value)
          if (category.length > 0) {
            value = category[0]
            temp['categoryInDefaultIndex'] = this.data.categoryList.findIndex(item => item.id === value.id)
          }
        }
        if (key === 'product_brand_id') {
          const brand = this.data.brandList.filter(item => item.id === value)
          if (brand.length > 0) {
            value = brand[0]
            temp['brandInDefaultIndex'] = this.data.brandList.findIndex(item => item.id === value.id)
          }
        }

        if (key === 'product_unit') {
          const unit = this.data.unitInColumns.filter(item => item === value)
          if (unit.length > 0) {
            temp['unitInDefaultIndex'] = this.data.unitInColumns.findIndex(item => item === value)
          }
        }

        if (key === 'product_all_price' || key === 'product_price') {
          value = fen2Yuan(value)
        }

        if (key === 'product_sale_at') {
          if (value === 0) {
            value = '现货'
          } else {
            const { YYYY, MM, DD } = formatTs(value * 1000)

            temp['saleAtType'] = '1'
            temp['currentDate'] = value * 1000
            value = `${YYYY}年${MM}月${DD}日`
          }
        }

        if (key === 'product_check_status') {
          temp['productCheckStatus'] = value
        }

        if (this.data.form.hasOwnProperty(key)) {
          temp[`form.${key}`] = value
        }
      }
    }

    this.setData(temp)
  },
  async updateBusinessGoodsEditsDataOfStorage(formKey, value) {
    const key = app.globalData.businessGoodsEditsStorageKey
    let temp = {}

    if (this.data.form.id) {
      return
    }

    try {
      const { data, errMsg } = await wx.getStorage({ key })
      if (errMsg === 'getStorage:ok' && /^{/.test(data)) {
        temp = JSON.parse(data)
      }
    } catch (e) {
      temp = {}
    }

    wx.setStorage({
      key,
      data: JSON.stringify({
        ...temp,
        [formKey]: value
      })
    })
  }
})