classroom-music-activation/miniprogram/pages/select-goods/index.ts

import { api_shopInstruments, api_shopProduct } from "../../api/login"
import { debounce, formatPrice } from "../../utils/util"
// 获取应用实例
const app = getApp<IAppOption>()
// pages/select-goods/index.ts
Page({

  /**
   * 页面的初始数据
   */
  data: {
    backParams: null as any,
    instrumentList: [] as any,
    list: [] as any,
    isOverSaled: false, // 是否所有商品都没有库存
    smallGoods: {}, // 最小金额商品
    selected: {} as any,
    selectInstrumentId: '', // 选中的乐器
    selectedInstrument: {} as any,
    formatSelectGood: {
      typeName: '',
      showSalePrice: '', // 显示的现价
      originalPrice: 0, // 原价
      salePrice: 0, // 现价
      discountPrice: '' // 已省
    } as any, // 格式化所有选中的数据

    userBeneficiaryId: '', // 选中用户的编号
    userBeneficiaryInfo: {
      name: '',
      phoneNumber: '',
      schoolInfo: ''
    },
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad() {
    this.onInit()
  },
  /**
   * 获取基础信息
   */
  async onInit() {
    try {
      const result = await api_shopInstruments({ appId: app.globalData.appId })
      const instrumentList = result.data.data || []
      instrumentList?.forEach((item: any) => {
        item.showSalePrice = formatPrice(item.salePrice || 0, 'ALL')
        const formatSalePrice: any = formatPrice(item.salePrice || 0)
        item.integerPart = formatSalePrice.integerPart
        item.decimalPart = formatSalePrice.decimalPart
        item.originalPrice = formatPrice(item.originalPrice, "ALL");
      })
      const { data } = await api_shopProduct({ appId: app.globalData.appId });
      const list = data.data || []
      let selected: any = {}
      let isOverSaled = true // 是否销售完

      // 最少金额商品
      let smallGoods: any = {}
      list.forEach((item: any) => {
        item.originalPrice = formatPrice(item.originalPrice, "ALL");
        item.showSalePrice = formatPrice(item.salePrice, "ALL");
        item.typeName = this.formatPeriod(item.num, item.period);
        item.discountPrice = formatPrice(
          item.originalPrice - item.salePrice,
          "ALL"
        );
        const prices: any = formatPrice(item.salePrice)
        item.integerPart = prices.integerPart
        item.decimalPart = prices.decimalPart
        if (item.stockNum > 0) {
          isOverSaled = false
          if (!selected.id) {
            selected = item
          }
        }

        // 获取最小金额
        if (smallGoods?.salePrice) {
          smallGoods = smallGoods.salePrice <= item.salePrice ? smallGoods : item
        } else {
          smallGoods = item
        }
      });
      if (isOverSaled) {
        // 没有可购买商品则默认选中第一个商品
        selected = list[0]
      }

      this.setData({
        list,
        instrumentList, // 乐器列表
        isOverSaled,
        selected,
        smallGoods,
        selectInstrumentId: '',
        selectedInstrument: {},

        userBeneficiaryId: '',
        userBeneficiaryInfo: {
          name: '',
          phoneNumber: '',
          schoolInfo: ''
        }
      }, () => {
        this.onFormatGoods()
      })
    } catch (e) {
      console.log(e, 'e')
    }
  },
  // 格式化类型
  formatPeriod(num: number, type: string) {
    const template: any = {
      DAY: "天卡",
      MONTH: "月卡",
      YEAR: "年卡"
    }
    if (type === "YEAR" && num >= 99) {
      return '永久卡'
    }
    return num + (template[type] || '')
  },
  onBack() {
    wx.navigateBack()
  },
  // 选择
  onSelectGoods(e: any) {
    const { dataset } = e.currentTarget
    const item = this.data.list.find((item: any) => item.id === dataset.id)
    // 判断是否有库存
    if (item.stockNum <= 0) {
      return
    }
    this.setData({
      selected: item || {}
    }, () => {
      this.onFormatGoods()
    })
  },
  /** 选中乐器 */
  onSelectInstrument(e: any) {
    const { dataset } = e.currentTarget;
    if (dataset.id === this.data.selectInstrumentId) {
      this.setData({
        selectInstrumentId: '',
        selectedInstrument: {}
      }, () => {
        this.onFormatGoods()
      })
    } else {
      const item = this.data.instrumentList.find((item: any) => item.id === dataset.id);
      this.setData({
        selectInstrumentId: dataset.id,
        selectedInstrument: item || {}
      }, () => {
        this.onFormatGoods()
      })
    }

  },
  isLogin() {
    // 判断是否登录
    if (!app.globalData.isLogin) {
      wx.navigateTo({
        url: '../login/login',
      })
      return false
    }
    return true
  },
  /** 格式化选中的商品 */
  onFormatGoods() {
    const selected = this.data.selected;
    const selectedInstrument = this.data.selectedInstrument

    const params = {
      typeName: '',
      showSalePrice: '' as any, // 显示的现价
      originalPrice: 0, // 原价
      salePrice: 0, // 现价
      discountPrice: '' as any, // 已省
      integerPart: '',
      decimalPart: '',
    }
    // 选中期限
    if (selected.id) {
      params.typeName = selected.typeName
      params.showSalePrice = selected.showSalePrice
      params.originalPrice = selected.originalPrice
      params.salePrice = selected.salePrice
      params.discountPrice = selected.discountPrice

      const prices: any = formatPrice(params.salePrice);
      params.integerPart = prices.integerPart
      params.decimalPart = prices.decimalPart
    }
    // 选中乐器
    if (selectedInstrument.id) {
      params.typeName = selected.typeName ? selected.typeName + '+' + selectedInstrument.name : selectedInstrument.name
      params.originalPrice = Number(selected.originalPrice) + Number(selectedInstrument.originalPrice)
      params.salePrice = Number(selected.salePrice) + Number(selectedInstrument.salePrice)
      params.showSalePrice = formatPrice(params.salePrice, "ALL");
      params.discountPrice = formatPrice(
        params.originalPrice - params.salePrice,
        "ALL"
      );

      const prices: any = formatPrice(params.salePrice);
      params.integerPart = prices.integerPart
      params.decimalPart = prices.decimalPart
    }

    this.setData({
      formatSelectGood: params
    })
  },
  onSubmit() {
    // 判断是否登录
    const that = this
    if (!this.data.userBeneficiaryId) {
      wx.showToast({
        title: '请添加权益享用人',
        icon: 'none'
      })
      return
    }
    debounce(function () {
      if (!that.isLogin()) {
        return
      }
      const params = [] as any
      const selected = that.data.selected
      if (selected.id) {
        params.push({
          pic: selected.pic,
          name: selected.name,
          period: selected.period,
          num: selected.num,
          originalPrice: selected.originalPrice,
          salePrice: selected.salePrice,
          shopId: selected.shopId,
          id: selected.id,
          goodsType: 'ACTIVATION_CODE', // INSTRUMENTS
        })
      }
      const selectedInstrument = that.data.selectedInstrument
      if (selectedInstrument.id) {
        params.push({
          pic: selectedInstrument.pic,
          name: selectedInstrument.name,
          period: selectedInstrument?.period,
          num: selectedInstrument?.num || 0,
          originalPrice: selectedInstrument.originalPrice,
          salePrice: selectedInstrument.salePrice,
          shopId: selectedInstrument.shopId,
          id: selectedInstrument.id,
          goodsType: 'INSTRUMENTS', // INSTRUMENTS
        })
      }

      let info = JSON.stringify({
        ...params
      });
      info = encodeURIComponent(info);

      console.log(params, "params")
      wx.navigateTo({
        url: `../orders/order-detail?orderInfo=${info}&userBeneficiaryId=${that.data.userBeneficiaryId}`,
        success: () => {
          that.setData({
            popupShow: false,
            currentIndex: 1,
          })
        }
      })
    }, 500)()
  },
  /** 添加购买人 */
  onAddBuyer() {
    wx.navigateTo({
      url: "../buyerInformation/index?userBeneficiaryId=" + this.data.userBeneficiaryId,
    });
  },
  onShow() {
    if (this.data.backParams) {
      // console.log(this.data.backParams, 'backParams'); // { key: 'value' }
      const backParams: any = this.data.backParams || {};
      this.setData({
        userBeneficiaryId: backParams.userBeneficiaryId,
        userBeneficiaryInfo: {
          name: backParams.name,
          phoneNumber: backParams.phone,
          schoolInfo: backParams.schoolInfo
        },
        backParams: null // 清空参数
      })
    }

  }
})