HNKDBOSS-WEB/hn-shop-uniapp/pages/checkout/cashier/index.vue

<template>
  <view v-if="!isLoading" class="container" :style="appThemeStyle">
    <!-- 订单信息 -->
    <view class="order-info">
      <!-- 支付剩余时间 -->
      <view v-if="order.showExpiration" class="order-countdown">
        <text class="m-r-6">剩余时间</text>
        <count-down :date="order.expirationTime" separator="zh" theme="text" />
      </view>
      <!-- 付款金额 -->
      <view class="order-amount">
        <text class="unit">￥</text>
        <text class="amount">{{ order.pay_price }}</text>
      </view>
    </view>

    <!-- 支付方式 -->
    <view class="payment-method">
      <view v-for="(item, index) in methods" :key="index" class="pay-item dis-flex flex-x-between" @click="handleSelectPayType(index)">
        <view class="item-left dis-flex flex-y-center">
          <view class="item-left_icon" :class="[item.method]">
            <text class="iconfont" :class="[PayMethodIconEnum[item.method]]"></text>
          </view>
          <view class="item-left_text">
            <text>{{ PayMethodEnum[item.method].name }}</text>
          </view>
          <view v-if="item.method === PayMethodEnum.BALANCE.value" class="user-balance">
            <text>(可用￥{{ personal.balance }}元)</text>
          </view>
        </view>
        <view class="item-right col-m" v-if="curPaymentItem && curPaymentItem.method == item.method">
          <text class="iconfont icon-check"></text>
        </view>
      </view>
    </view>

    <!-- 确认按钮 -->
    <view class="footer-fixed">
      <view class="btn-wrapper">
        <view class="btn-item btn-item-main" :class="{disabled}" @click="handleSubmit()">确认支付</view>
      </view>
    </view>

    <!-- 支付确认弹窗 -->
    <!-- #ifdef H5 -->
    <u-modal
      v-if="tempUnifyData"
      v-model="showConfirmModal"
      title="支付确认"
      show-cancel-button
      confirm-text="已完成支付"
      :confirm-color="appTheme.mainBg"
      negative-top="100"
      :asyncClose="true"
      @confirm="onTradeQuery(tempUnifyData.outTradeNo, tempUnifyData.method)"
    >
      <view class="modal-content">
        <text>请在{{ PayMethodClientNameEnum[tempUnifyData.method] }}内完成支付，如果您已经支付成功，请点击“已完成支付”按钮</text>
      </view>
    </u-modal>
    <!-- #endif -->
  </view>
</template>

<script>
import storage from '@/utils/storage'
import {inArray, urlEncode} from '@/utils/util'
import {Alipay, Wechat} from '@/core/payment'
import CountDown from '@/components/countdown'
import {PayMethodEnum} from '@/common/enum/payment'
import {PayStatusEnum} from '@/common/enum/order'
import * as CashierApi from '@/api/cashier'

// 支付方式对应的图标
const PayMethodIconEnum = {
  [PayMethodEnum.WECHAT.value]: 'icon-wechat-pay',
  [PayMethodEnum.ALIPAY.value]: 'icon-alipay',
  [PayMethodEnum.BALANCE.value]: 'icon-balance-pay'
}

// 支付方式的终端名称
const PayMethodClientNameEnum = {
  [PayMethodEnum.WECHAT.value]: '微信',
  [PayMethodEnum.ALIPAY.value]: '支付宝'
}

// H5端支付下单时的数据
// 用于从第三方支付页返回到收银台页面后拿到下单数据
const getTempUnifyData = (orderKey) => {
  // if (window.performance && window.performance.navigation.type == 2) {
  const tempUnifyData = storage.get('tempUnifyData_' + orderKey)
  if (tempUnifyData) {
    storage.remove('tempUnifyData_' + orderKey)
    return tempUnifyData
  }
  // }
  return null
}

export default {
  components: {
    CountDown
  },
  data() {
    return {
      // 加载中
      isLoading: true,
      // 确认按钮禁用
      disabled: false,
      // 枚举类
      PayMethodEnum,
      PayMethodIconEnum,
      PayMethodClientNameEnum,
      // 当前选中的支付方式
      curPaymentItem: null,
      // 当前订单ID
      orderId: null,
      // 当前结算订单信息
      order: {},
      // 个人信息
      personal: {balance: '0.00'},
      // 当前客户端的支付方式列表（后端根据platform判断）
      methods: [],
      // 支付确认弹窗
      showConfirmModal: false,
      // #ifdef H5
      // 当前第三方支付信息 (临时数据, 仅用于H5端)
      tempUnifyData: {outTradeNo: '', method: ''}
      // #endif
    }
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad({orderId}) {
    // 记录订单ID
    this.orderId = Number(orderId)
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow() {
    // 获取收银台信息
    this.getCashierInfo()
  },

  methods: {
    // 获取收银台信息
    getCashierInfo() {
      const app = this
      app.isLoading = true
      CashierApi.orderInfo(app.orderId, {client: app.platform}).then((result) => {
        app.order = result.data.order
        app.personal = result.data.personal
        app.methods = result.data.paymentMethods
        app.isLoading = false
        app.setDefaultPayType()
        app.checkOrderPayStatus()
        // #ifdef H5
        // 判断当前页面来源于浏览器返回
        this.performance()
        // #endif
      })
    },

    // 设置默认的支付方式
    setDefaultPayType() {
      const app = this
      if (app.disabled) return
      if (app.curPaymentItem) return
      const defaultIndex = app.methods.findIndex((item) => item.is_default == true)
      defaultIndex > -1 && app.handleSelectPayType(defaultIndex)
    },

    // 判断当前订单是否为已支付
    checkOrderPayStatus() {
      const app = this
      if (app.order.pay_status == PayStatusEnum.SUCCESS.value) {
        app.$toast('恭喜您，订单已付款成功')
        app.onSuccessNav()
      }
    },

    // 选择支付方式
    handleSelectPayType(index) {
      this.curPaymentItem = this.methods[index]
    },

    // 判断当前页面来源于浏览器返回并提示手动查单
    // #ifdef H5
    performance() {
      const app = this
      // 判断订单状态, 异步回调会将订单状态变为已支付, 那么就不需要让用户手动查单了
      if (app.order.pay_status == PayStatusEnum.PENDING.value) {
        const performanceData = getTempUnifyData(app.orderId)
        if (performanceData) {
          app.tempUnifyData = performanceData
          app.showConfirmModal = true
        }
      }
    },
    // #endif

    // 确认支付
    handleSubmit() {
      const app = this
      // 判断是否选择了支付方式
      if (!app.curPaymentItem) {
        app.$toast('您还没有选择支付方式')
        return
      }
      // 按钮禁用
      if (app.disabled) return
      app.disabled = true
      // 提交到后端API
      CashierApi.orderPay(app.orderId, {
        method: app.curPaymentItem.method,
        client: app.platform,
        extra: app.getExtraAsUnify(app.curPaymentItem.method)
      })
        .then((result) => app.onSubmitCallback(result))
        .finally((err) => setTimeout(() => (app.disabled = false), 10))
    },

    // 获取第三方支付的扩展参数
    getExtraAsUnify(method) {
      if (method === PayMethodEnum.ALIPAY.value) {
        return Alipay.extraAsUnify()
      }
      if (method === PayMethodEnum.WECHAT.value) {
        return Wechat.extraAsUnify()
      }
      return {}
    },

    // 订单提交成功后回调
    onSubmitCallback(result) {
      const app = this
      const method = app.curPaymentItem.method
      const paymentData = result.data.payment
      // 余额支付
      if (method === PayMethodEnum.BALANCE.value) {
        app.onShowSuccess(result)
      }
      // 发起支付宝支付
      if (method === PayMethodEnum.ALIPAY.value) {
        console.log('paymentData', paymentData)
        Alipay.payment({orderKey: app.orderId, ...paymentData})
          .then((res) => app.onPaySuccess(res))
          .catch((err) => app.onPayFail(err))
      }
      // 发起微信支付
      if (method === PayMethodEnum.WECHAT.value) {
        console.log('paymentData', paymentData)
        Wechat.payment({orderKey: app.orderId, ...paymentData})
          .then((res) => app.onPaySuccess(res))
          .catch((err) => app.onPayFail(err))
      }
    },

    // 订单支付成功的回调方法
    // 这里只是前端支付api返回结果success,实际订单是否支付成功 以后端的查单和异步通知为准
    onPaySuccess({res, option: {isRequireQuery, outTradeNo, method}}) {
      const app = this
      // 判断是否需要主动查单
      // isRequireQuery为true代表需要主动查单
      if (isRequireQuery) {
        app.onTradeQuery(outTradeNo, method)
        return true
      }
      this.onShowSuccess(res)
    },

    // 显示支付成功信息并页面跳转
    onShowSuccess({message}) {
      this.$toast(message || '订单支付成功')
      this.onSuccessNav()
    },

    // 订单支付失败
    onPayFail(err) {
      console.log('onPayFail', err)
      const errMsg = err.message || '订单未支付'
      this.$error(errMsg)
    },

    // 已完成支付按钮事件: 请求后端查单
    onTradeQuery(outTradeNo, method) {
      const app = this
      // 交易查询
      // 查询第三方支付订单是否付款成功
      CashierApi.tradeQuery({outTradeNo, method, client: app.platform})
        .then((result) => (result.data.isPay ? app.onShowSuccess(result) : app.onPayFail(result)))
        .finally(() => (app.showConfirmModal = false))
    },

    // 支付成功后的跳转
    onSuccessNav() {
      // 相应全局事件订阅: 刷新上级页面数据
      uni.$emit('syncRefresh', true)
      // 获取上级页面
      const pages = getCurrentPages()
      const lastPage = pages.length < 2 ? null : pages[pages.length - 2]
      const backRoutes = ['pages/order/index', 'pages/order/detail']
      setTimeout(() => {
        if (lastPage && inArray(lastPage.route, backRoutes)) {
          uni.navigateBack()
        } else {
          this.$navTo('pages/order/index', {}, 'redirectTo')
        }
      }, 1200)
    }
  }
}
</script>

<style>
page {
  background: #f4f4f4;
}
</style>
<style lang="scss" scoped>
.container {
  background-color: #f4f4f4;
}

// 订单信息
.order-info {
  padding: 80rpx 0;
  text-align: center;

  .order-countdown {
    display: flex;
    justify-content: center;
    font-size: 26rpx;
    color: #666666;
    margin-bottom: 20rpx;
  }

  .order-amount {
    margin: 0 auto;
    max-width: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #111111;

    .unit {
      font-size: 30rpx;
      margin-bottom: -18rpx;
    }

    .amount {
      font-size: 56rpx;
    }
  }
}

// 支付方式
.payment-method {
  width: 94%;
  margin: 0 auto 20rpx auto;
  padding: 0 40rpx;
  background-color: #ffffff;
  border-radius: 20rpx;

  .pay-item {
    padding: 26rpx 0;
    font-size: 28rpx;
    border-bottom: 1rpx solid rgb(248, 248, 248);

    &:last-child {
      border-bottom: none;
    }

    .item-left_icon {
      margin-right: 20rpx;
      font-size: 44rpx;

      &.wechat {
        color: #00c800;
      }

      &.alipay {
        color: #009fe8;
      }

      &.balance {
        color: #ff9700;
      }
    }

    .item-left_text {
      font-size: 28rpx;
    }

    .item-right {
      font-size: 32rpx;
    }

    .user-balance {
      margin-left: 20rpx;
      font-size: 26rpx;
    }
  }
}

// 支付确认弹窗
.modal-content {
  padding: 40rpx 48rpx;
  font-size: 30rpx;
  line-height: 50rpx;
  text-align: left;
  color: #606266;
  // height: 620rpx;
  box-sizing: border-box;
}

// 底部操作栏
.footer-fixed {
  position: fixed;
  bottom: var(--window-bottom);
  left: 0;
  right: 0;
  z-index: 11;
  box-shadow: 0 -4rpx 40rpx 0 rgba(151, 151, 151, 0.24);
  background: #fff;

  // 设置ios刘海屏底部横线安全区域
  padding-bottom: constant(safe-area-inset-bottom);
  padding-bottom: env(safe-area-inset-bottom);

  .btn-wrapper {
    height: 120rpx;
    display: flex;
    align-items: center;
    padding: 0 40rpx;
  }

  .btn-item {
    flex: 1;
    font-size: 28rpx;
    height: 80rpx;
    color: #fff;
    border-radius: 50rpx;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .btn-item-main {
    background: linear-gradient(to right, $main-bg, $main-bg2);
    color: $main-text;

    // 禁用按钮
    &.disabled {
      opacity: 0.6;
    }
  }
}
</style>