import { Image, ScrollView, View } from '@tarojs/components'
import Popup from '@/components/popup'
import classnames from 'classnames'
import MCheckbox from '@/components/checkbox'
import LoadingCard from '@/components/loadingCard'
import InfiniteScroll from '@/components/infiniteScroll'
import styles from './index.module.scss'
import { useCallback, useEffect, useMemo, useRef, useState, useTransition } from 'react'
import Taro from '@tarojs/taro'
import { alert, goLink } from '@/common/common'
import { GetShoppingCartApi, DelShoppingCartApi, UpdateShoppingCartApi } from '@/api/shopCart'
import { formatHashTag, formatImgUrl, formatPriceDiv } from '@/common/fotmat'
import { setParam } from '@/common/system'
import { debounce, throttle } from '@/common/util'
import Counter from '../counter'
import { ApplyOrderAccessApi, GetAdminUserInfoApi, SubscriptionMessageApi } from '@/api/user'
import useCommonData from '@/use/useCommonData'
import BindSalesmanPopup from '../bindSalesmanPopup'
import LabAndImgShow from '../LabAndImgShow'
import LabAndImg from '../LabAndImg'
import ProductItem from './components/productItem'
import { saleModeType } from '@/common/enum'

type param = {
  show?: true | false
  onClose?: () => void
  intoStatus?: 'again' | 'shop'
  default_sale_mode?: saleModeType //面料类型（0：大货， 1：剪版，2：散剪
}
type modelClassType = {
  value: saleModeType
  title: string
  unit: string
  step: number
  digits: number
  minNum: number
  maxNum: number
  defaultNum: number
  eunit: string
}
export default ({ show = false, onClose, intoStatus = 'shop', default_sale_mode }: param) => {
  const selectList: modelClassType[] = [
    { value: 0, title: '大货', unit: '条', eunit: 'kg', step: 1, digits: 0, minNum: 1, maxNum: 100000, defaultNum: 1 },
    { value: 1, title: '剪板', unit: '米', eunit: 'm', step: 1, digits: 2, minNum: 0.5, maxNum: 9.99, defaultNum: 1 },
    { value: 2, title: '散剪', unit: '米', eunit: 'kg', step: 1, digits: 2, minNum: 3, maxNum: 100000, defaultNum: 3 },
  ]

  const [isPending, startTransition] = useTransition()

  //切换面料类型
  const [selectIndex, setSelectIndex] = useState<saleModeType>(default_sale_mode || 0)
  const selectProduct = (index: 0 | 1 | 2) => {
    setSelectIndex(index)
  }
  useEffect(() => {
    if (!isPending) {
      setSelectIndex(() => default_sale_mode!)
    }
  }, [default_sale_mode])

  useEffect(() => {
    startTransition(() => {
      resetList()
      setSelectStatus(true)
    })
  }, [selectIndex])

  //获取购物车数据数量
  const { getShopCount } = useCommonData()

  //获取所有数据数据
  const [list, setList] = useState<{ [id: number]: any }>({})
  const [loading, setLoading] = useState(false)
  const { fetchData: getShoppingFetchData } = GetShoppingCartApi()
  const getShoppingCart = async () => {
    const { data } = await getShoppingFetchData()
    let color_list = data.color_list || []
    initList(color_list)
    setLoading(false)
  }

  //更新单条数据
  const getShoppingCartInfo = async (item) => {
    const res = await getShoppingFetchData({ id: item.id })
    if (res.success) {
      let info = res.data.color_list[0]
      let newInfo = {
        ...item,
        estimate_amount: info.estimate_amount,
        estimate_weight: info.estimate_weight,
        lab: info.lab,
        roll: info.roll,
        length: info.length,
        sale_offset: info.sale_offset,
        sale_price: info.sale_price,
        standard_price: info.standard_price,
      }
      setList((e) => ({ ...e, [item['id']]: newInfo }))
    }
  }

  const listData = useMemo(() => {
    return Object.values(list)
  }, [list])

  //初始化全部数据默认勾选
  const initList = (color_list) => {
    let obj = {}
    color_list?.map((item) => {
      item.selected = selectIndex == item.sale_mode
      const { unit, eunit, step, digits, minNum, maxNum } = selectList[item.sale_mode]
      item = { ...item, unit, eunit, step, digits, minNum, maxNum }
      obj[item.id] = item
    })
    setList(() => ({ ...obj }))
  }

  //重置勾选数据
  const resetList = () => {
    Object.values(list)?.map((item) => {
      if (selectIndex == item.sale_mode) {
        item.selected = true
      } else {
        item.selected = false
      }
      list[item['id']] = { ...item }
    })
    setList(() => ({ ...list }))
  }

  //显示时展示数据
  useEffect(() => {
    if (!show) {
      setList({})
      setSelectIndex(default_sale_mode || 0)
    } else {
      setLoading(true)
      getShoppingCart()
      setShowBindSalesman(() => false)
    }
  }, [show])

  const [showPopup, setShowPopup] = useState(false)
  useEffect(() => {
    setShowPopup(show)
  }, [show])

  //全选反选
  const [selectStatus, setSelectStatus] = useState(false)
  const selectAll = () => {
    Object.values(list)?.map((item) => {
      if (selectIndex == item.sale_mode) {
        item.selected = !selectStatus
        list[item['id']] = { ...item }
      }
    })
    setList(() => ({ ...list }))
    setSelectStatus(!selectStatus)
  }

  //checkbox选中判断是否全部选中，全部选中后是全选，否则反选
  useEffect(() => {
    let list_count = 0
    let select_count = 0
    Object.values(list)?.map((item) => {
      if (selectIndex == item.sale_mode) {
        list_count++
        if (item.selected) select_count++
      }
    })
    setSelectStatus(select_count == list_count)
  }, [list])

  //修改数量
  const onChangeCount = useCallback((item) => {
    getInputValue(item)
  }, [])

  //修改选择
  const onChangeSelect = useCallback((item) => {
    setList((e) => ({ ...e, [item.id]: { ...item } }))
  }, [])

  //popup关闭
  const closePopup = () => {
    onClose?.()
    setShowPopup(false)
  }

  //删除购物车内容
  const { fetchData: delShopFetchData } = DelShoppingCartApi()
  const delSelect = () => {
    getSelectId()
    if (selectIds.current.length <= 0) return alert.none('请选择要删除的面料!')
    Taro.showModal({
      content: '删除所选商品？',
      success: async function (res) {
        if (res.confirm) {
          const res = await delShopFetchData({ id: selectIds.current })
          if (res.success) {
            getShoppingCart()
            getShopCount()
            Taro.showToast({
              title: '成功',
              icon: 'success',
            })
          } else {
            Taro.showToast({
              title: res.msg,
              icon: 'none',
            })
          }
        } else if (res.cancel) {
          console.log('用户点击取消')
        }
      },
    })
  }

  //获取面料选中的id
  const selectIds = useRef<number[]>([])
  const getSelectId = () => {
    selectIds.current = []
    Object.values(list)?.map((item) => {
      if (selectIndex == item.sale_mode) {
        item.selected && selectIds.current.push(item.id)
      }
    })
  }

  //预估金额和总条数
  const estimatePrice = useMemo(() => {
    let estimate_amount = 0
    let product_list = new Set() //面料
    let color_count = 0 //颜色数量
    let all_count = 0 //总数量
    Object.values(list)?.map((item) => {
      if (item.selected) {
        estimate_amount += item.estimate_amount
        product_list.add(item.product_id)
        color_count++
        all_count += item.sale_mode == 0 ? parseFloat(item.roll) : parseFloat(item.length)
      }
    })
    let all_count_text = selectIndex == 0 ? all_count + ' 条' : all_count / 100 + ' 米'
    console.log('text::', list)
    return {
      price: Number(formatPriceDiv(estimate_amount)).toFixed(2),
      countText: `已选 ${product_list.size} 种面料，${color_count} 个颜色，共 ${all_count_text}`,
      color_count,
    }
  }, [list])

  //去结算
  const { fetchData: useFetchData } = GetAdminUserInfoApi()
  const { fetchData: applyOrderAccessFetchData } = ApplyOrderAccessApi()
  const orderDetail = throttle(async () => {
    let res = await useFetchData()
    if (res.data.order_access_status !== 3) {
      if (res.data.order_access_status == 1) applyOrderAccessFetchData()
      setShowBindSalesman(() => true)
      onClose?.()
      return false
    }
    getSelectId()
    if (selectIds.current.length == 0) {
      alert.error('请选择面料')
    } else {
      let ids = selectIds.current.join('-')
      setParam({ ids, sale_mode: selectIndex }) //临时存储
      closePopup()
      if (intoStatus == 'again') {
        goLink('/pages/order/comfirm', null, 'redirectTo')
      } else {
        goLink('/pages/order/comfirm')
      }
    }
  }, 500)

  //计数组件-当后端修改完成才修改前端显示
  const { fetchData: fetchDataUpdateShoppingCart } = UpdateShoppingCartApi()
  const getInputValue = debounce(async (item) => {
    let res = await fetchDataUpdateShoppingCart({ id: item.id, roll: item.roll, length: item.length })
    if (res.success) {
      console.log('item修改：：', item)
      getShoppingCartInfo(item)
    } else {
      setList((e) => ({ ...e }))
    }
  }, 300)

  //绑定业务员和电话号码
  const [showBindSalesman, setShowBindSalesman] = useState(false)

  //显示图片弹窗
  const [showLabImage, setShowLabImage] = useState(false)
  const [labImageValue, setLabImageValue] = useState()
  const getLabAndImg = useCallback((val) => {
    setShowLabImage(() => true)
    setLabImageValue(val)
  }, [])
  const closeLabImgShow = useCallback(() => {
    setShowLabImage(() => false)
  }, [])

  return (
    <View className={styles.shop_cart_main}>
      <Popup showTitle={false} show={showPopup} onClose={() => closePopup()}>
        <View className={styles.popup_con}>
          <View className={styles.header}>
            <View onClick={selectAll}>{!selectStatus ? '全选' : '反选'}</View>
            <View onClick={delSelect}>
              <text className={classnames('iconfont', 'icon-shanchu', styles.miconfont)}></text>
              删除所选
            </View>
          </View>
          <View className={styles.count_all}>{estimatePrice.countText}</View>
          <View className={styles.search}>
            {selectList.map((item) => {
              return (
                <View
                  key={item.value}
                  onClick={() => selectProduct(item.value)}
                  className={classnames(styles.search_item, selectIndex == item.value && styles.search_item_select)}>
                  {item.title}
                </View>
              )
            })}
          </View>
          <View className={styles.con}>
            {(loading || isPending) && <LoadingCard />}
            {!loading && !isPending && listData?.length > 0 && (
              <InfiniteScroll moreStatus={false}>
                <View className={styles.product_list}>
                  {listData?.map((item) => {
                    return <ProductItem sale_model={selectIndex} onChangeCount={onChangeCount} onChangeSelect={onChangeSelect} item={item} />
                  })}
                </View>
              </InfiniteScroll>
            )}
            {!loading && listData?.length == 0 && (
              <View className={styles.empty}>
                <View className={styles.title}>暂未选择商品</View>
                <View className={styles.btn} onClick={() => goLink('/pages/index/index', null, 'switchTab')}>
                  去选购
                </View>
              </View>
            )}
          </View>
          <View className={styles.buy_btn}>
            <View className={styles.buy_con}>
              <View className={styles.icon}>
                <View className={classnames('iconfont', 'icon-gouwuche', styles.miconfont)}></View>
              </View>
              <View className={styles.price_con}>
                <View className={styles.price_real}>
                  <text>￥</text>
                  {estimatePrice.price}
                </View>
                <View className={styles.price_forecast}>预估金额</View>
              </View>
              <View className={styles.goPay} onClick={() => orderDetail()}>
                去结算({estimatePrice.color_count})
              </View>
            </View>
          </View>
        </View>
      </Popup>
      <View>
        <BindSalesmanPopup show={showBindSalesman} onClose={() => setShowBindSalesman(false)} />
      </View>
      <View>
        <LabAndImgShow value={labImageValue} show={showLabImage} onClose={closeLabImgShow} />
      </View>
    </View>
  )
}