<template>
  <div class="order-box">
    <div class="left">
      <div class="user bg-fff u-p-20">
        <div class="userinfo" v-if="carts.vipUser.id" @click="chooseUser">
          <el-avatar :src="carts.vipUser.headImg" class="avatar" :size="50" />
          <div class="u-m-l-12">
            <p>
              <span class="name u-font-16">{{ carts.vipUser.nickName }}</span>
              <span class="vip" v-if="carts.vipUser.isVip">
                VIP{{ carts.vipUser.memberLevelName }}
              </span>
            </p>
            <p class="u-font-14 color-666 u-m-t-10">
              <span class="money">余额：{{ carts.vipUser.amount }}</span>
              <span class="score u-m-l-10">积分：{{ carts.vipUser.pointBalance }}</span>
            </p>
          </div>
        </div>
        <div class="userinfo" v-else @click="chooseUser">
          <el-avatar class="avatar" :size="50" />
          <div class="u-m-l-12 no-wrap">
            <p>
              <span class="name u-font-16">服务员下单</span>
            </p>
            <p class="u-font-14 color-666 u-m-t-10">
              <span class="money">余额：</span>
              <span class="score u-m-l-10">积分：</span>
            </p>
          </div>
        </div>
        <template v-if="carts.vipUser.id">
          <div class="score">
            <div class="u-flex u-col-center u-m-t-10">
              <span class="u-font-14 font-bold u-m-r-20">积分抵扣</span>
              <el-radio-group v-model="score.sel" size="small" class="">
                <el-radio :value="-1">
                  <span class="u-font-14">不使用</span>
                </el-radio>
                <el-radio :value="0" :disabled="!pointsRes.usable">
                  <span class="u-font-14">使用</span>
                </el-radio>
                <!-- <el-radio :value="1" :disabled="!pointsRes.usable">
                  <span class="u-font-14">部分抵扣</span>
                </el-radio> -->
              </el-radio-group>
              <el-input-number class="u-m-l-10" v-if="score.sel != -1" v-model="usePointsNumber" step-strictly
                :step="pointsRes.equivalentPoints" placeholder="请输入积分抵扣数量" :min="pointsRes.minDeductionPoints"
                :max="pointsRes.maxUsablePoints" :disabled="!pointsRes.usable"
                @change="pointsToMoney"></el-input-number>
            </div>
            <p class="u-font-14 color-666 u-m-t-10" v-if="pointsRes.unusableReason && !pointsRes.usable">
              <span class="color-red">*</span>
              <span>{{ pointsRes.unusableReason }}</span>
            </p>
            <p class="u-font-14 color-666 u-m-t-10" v-else>
              <span class="color-red">*</span>
              <span>{{ pointsRes.equivalentPoints }}积分等于1元</span>
            </p>
          </div>
          <div class="u-flex u-col-center u-m-t-20 no-wrap">
            <span class="u-font-14 font-bold u-m-r-20">团购代金券</span>
            <div class="u-flex my-select">
              <span class="u-m-r-10">代金券名称</span>
              <el-icon>
                <ArrowDown />
              </el-icon>
            </div>
            <svg-icon iconClass="scan" size="30" class="u-m-l-10 cur-pointer"></svg-icon>
          </div>
          <div class="u-flex u-col-center u-m-t-20 no-wrap">
            <span class="u-font-14 font-bold u-m-r-20">优惠券</span>
            <div v-if="
              carts.orderCostSummary.fullReduction !== undefined &&
              carts.orderCostSummary.fullReduction.actualAmount > 0
            " style="font-size: 14px; color: #555">
              参与满减活动不可用优惠券！
            </div>
            <div class="u-flex my-select" @click="openCoupon" v-else>
              <span class="u-m-r-10">选择优惠券</span>
              <el-icon>
                <ArrowDown />
              </el-icon>
            </div>
          </div>
          <div class="u-m-t-20" v-if="quansSelArr.length > 0">
            <div class="font-bold u-m-b-10">已选优惠券</div>
            <el-table empty-text="未选择优惠券" :data="quansSelArr">
              <el-table-column type="index" width="50" label="#"></el-table-column>
              <el-table-column prop="name" label="券名称"></el-table-column>
              <el-table-column label="券类型" width="80">
                <template v-slot="scope">
                  {{ UTILS.returnCoupType(scope.row) }}
                </template>
              </el-table-column>
              <el-table-column label="商品信息">
                <template v-slot="scope">
                  <div>
                    {{ scope.row.foods }}
                  </div>
                </template>
              </el-table-column>
              <el-table-column prop="discountAmount" label="抵扣">
                <template v-slot="scope">
                  <span class="color-red">￥{{ scope.row.discountAmount }}</span>
                </template>
              </el-table-column>
              <el-table-column prop="useRestrictions" label="操作">
                <template v-slot="scope">
                  <el-button type="danger" size="small" @click="delQuan(scope.row)">删除</el-button>
                </template>
              </el-table-column>
            </el-table>
          </div>
        </template>
      </div>

      <div class="u-m-t-30">
        <el-button size="large" @click="discountShow">
          {{ checkOrderPay.discount ? checkOrderPay.discount / 10 + "折" : "整单打折/减免" }}
        </el-button>
      </div>
      <div class="u-m-t-30">
        <p class="u-font-16 font-bold u-m-r-20 font-bold u-flex">选择支付方式</p>
        <div class="u-m-t-20">
          <div>
            <el-button v-for="(item, index) in payTypes.list" :key="index" size="large"
              :type="index == payTypes.sel ? 'primary' : ''" :disabled="canUsePayType(item)"
              @click="changePayType(index)">
              {{ item.payName }}
            </el-button>
          </div>
        </div>
        <div class="u-m-t-20">
          <el-button type="primary" size="large" @click="nowPayClick()">立即支付</el-button>
        </div>
      </div>
    </div>
    <div class="right">
      <h3>账单明细</h3>
      <!-- <p class="u-font-12 u-m-b-20">
        <span class="color-red">*</span>
        <span class="color-red">餐位费和打包费不参与折扣和满减</span>
      </p> -->
      <div class="order-info">
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">订单号：</span>

          <span class="u-m-l-10 value">{{ orderInfo.orderNo }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">餐位费</span>
          <span class="u-m-l-10 value">￥{{ carts.orderCostSummary.seatFee }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">打包费</span>
          <span class="u-m-l-10 value">￥{{ carts.orderCostSummary.packFee }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">商品订单金额</span>
          <span class="u-m-l-10 value">
            ￥{{
              carts.orderCostSummary.goodsOriginalAmount -
              carts.orderCostSummary.goodsDiscountAmount
            }}
          </span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">满减活动</span>
          <span class="u-m-l-10 value">
            -￥{{ carts.orderCostSummary.fullReduction.actualAmount }}
          </span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">新客立减</span>
          <span class="u-m-l-10 value">-￥{{ carts.orderCostSummary.newUserDiscount }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">商品优惠券</span>
          <span class="u-m-l-10 value">-￥{{ productCouponDiscountAmount }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">会员折扣</span>
          <span class="u-m-l-10 value">-￥{{ carts.orderCostSummary.vipDiscountAmount }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">其他优惠券</span>
          <span class="u-m-l-10 value">-￥{{ fullCouponDiscountAmount }}</span>
        </div>

        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">整单改价</span>
          <span class="u-m-l-10 value color-red">
            -￥{{ carts.orderCostSummary.merchantReduction.actualAmount }}
          </span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">积分抵扣</span>
          <span class="u-m-l-10 value">-￥{{ carts.orderCostSummary.pointDeductionAmount }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">抹零</span>
          <span class="u-m-l-10 value">-￥{{ 0 }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">总价(商品订单金额-商品优惠券-满减券-整单改价-积分抵扣)</span>
          <span class="u-m-l-10 value color-red">￥{{ totalPrice }}</span>
        </div>
        <div class="u-flex u-m-b-10 u-row-between">
          <span class="title">应付金额(总价+客座费+打包费)</span>
          <span class="u-m-l-10 value price">￥{{ carts.orderCostSummary.finalPayAmount }}</span>
        </div>
      </div>
    </div>
    <!-- 扫码 -->
    <scanPay ref="refScanPay" :order="orderInfo" @confirm="refScanPayConfirm" @paysuccess="paysuccess"></scanPay>
    <!-- 打折 -->
    <discount ref="refDiscount" @confirm="discountConfirm"></discount>
    <!-- 优惠券 -->
    <popup-coupon ref="refCoupon" :user="carts.vipUser" @confirm="refCouponConfirm"></popup-coupon>
    <!-- 挂账 -->
    <chooseGuaZahng ref="refGuaZhang" :payMoney="currentpayMoney" @confirm="refGuaZhangConfirm"></chooseGuaZahng>
  </div>
</template>

<script setup>
import * as UTILS from "@/utils/coupon-utils.js";

import * as quanUtil from "../quan_util.js";
import { OrderPriceCalculator } from "@/utils/goods";
import { useCartsStore } from "@/store/modules/carts";
import { useUserStore } from "@/store/modules/user";
import chooseGuaZahng from "./popup-choose-guazhang.vue";
const shopUser = useUserStore();
const carts = useCartsStore();
import popupCoupon from "./popup-coupon.vue";
import PointsApi from "@/api/account/points";
import limitTimeDiscountApi from "@/api/market/limitTimeDiscount.js";
import payTypeApi from "@/api/account/payType";
import payApi from "@/api/order/pay";
import scanPay from "./scan-pay.vue";
import discount from "./discount.vue";
import { ElLoading } from "element-plus";
import { ElMessage, ElMessageBox } from "element-plus";
import { BigNumber } from "bignumber.js";

// 配置BigNumber精度
BigNumber.set({
  DECIMAL_PLACES: 2,
  ROUNDING_MODE: BigNumber.ROUND_DOWN, // 向下取整，符合业务需求
});
//挂账
const refGuaZhang = ref();
function refGuaZhangConfirm(guazhangRen) {
  payOrder("arrears", true, guazhangRen);
}
function refGuaZhangShow() {
  refGuaZhang.value.open();
}

const refCoupon = ref();
let quansSelArr = ref([]);
function openCoupon() {
  //商品订单金额
  const price = carts.orderCostSummary.goodsRealAmount;
  refCoupon.value.open(price, props.orderInfo);
}

function refCouponConfirm(e, goodsList) {
  e = e.map((v) => {
    return {
      ...v,
      couponType: v.type,
      title: v.name,
    };
  });
  console.log("refCouponConfirm", e);
  carts.setCoupons(e);

  quansSelArr.value = e;
  checkOrderPay.discountAmount = 0;
  checkOrderPay.discount = 0;
}
function delQuan(row) {
  const index = quansSelArr.value.findIndex((v) => v.id == row.id);
  if (index != -1) {
    quansSelArr.value.splice(index, 1);
  }
  carts.setCoupons(quansSelArr.value);
}

//打折
const refDiscount = ref();
const checkOrderPay = reactive({
  discountAmount: 0, //手动优惠金额
  discount: 0,
});
function discountConfirm(e) {
  console.log(e);
  Object.assign(checkOrderPay, e);
  if (e.discount) {
    carts.setMerchantDiscountReduction(e.discount);
  } else {
    carts.setMerchantFixedReduction(e.discountAmount);
    checkOrderPay.discount = 0;
  }

  score.sel = -1;
  usePointsNumber.value = 0;
}

// 计算商家减免前金额（使用bignumber.js确保精度）
function returnMerchantReductionDiscount() {
  const {
    fullReduction, //满减活动
    goodsOriginalAmount, // 商品原价总和
    goodsDiscountAmount, // 商品折扣
    couponDeductionAmount, // 优惠券抵扣
    pointDeductionAmount, // 积分抵扣
    seatFee, // 餐位费（不参与减免）
    packFee, // 打包费（不参与减免）
    additionalFee,
  } = carts.orderCostSummary;

  // 将所有金额转换为BigNumber实例
  const originalAmount = new BigNumber(goodsOriginalAmount);
  const discountAmount = new BigNumber(goodsDiscountAmount);
  const couponAmount = new BigNumber(couponDeductionAmount);
  const pointAmount = new BigNumber(pointDeductionAmount);
  const seat = new BigNumber(seatFee);
  const pack = new BigNumber(packFee);
  const additional = new BigNumber(additionalFee);
  const vipDiscountAmount = new BigNumber(carts.orderCostSummary.vipDiscountAmount);

  // 按照原逻辑进行精确计算
  const total = originalAmount
    .minus(fullReduction.actualAmount) // 减去满减活动抵扣金额
    .minus(discountAmount) // 减去商品折扣
    .minus(couponAmount) // 减去优惠券抵扣
    .minus(pointAmount) // 减去积分抵扣
    .minus(vipDiscountAmount) // 减去会员折扣
    .plus(seat) // 加上餐位费
    .plus(pack) // 加上打包费
    .plus(additional); // 加上附加费

  // 确保结果不小于0，返回数字类型
  return total.lte(0) ? 0 : total.toNumber();
}

function discountShow(e) {
  refDiscount.value.open({
    // amount: carts.goodsTotal - productCouponDiscountAmount.value,
    amount: returnMerchantReductionDiscount(),
  });
}

const props = defineProps({
  table: {
    type: Object,
    default: () => { },
  },
  user: {
    type: Object,
    default: () => {
      return { id: "" };
    },
  },
  perpole: {
    type: [Number, String],
    default: 0,
  },
  orderInfo: {
    type: Object,
    default: () => { },
  },
});

watch(
  () => props.user.id,
  (newval) => {
    quansSelArr.value = [];
    checkOrderPay.discountAmount = 0;
    checkOrderPay.discount = 0;
    score.sel = -1;
    usePointsNumber.value = 0;
    if (newval !== "") {
      pointsInit();
    }
  }
);

watch(
  () => props.orderInfo.id,
  (newval) => {
    if (newval !== "") {
      pointsInit();
    }
  }
);

//002-获取订单可用积分及抵扣金额（支付页面使用）
const pointsRes = ref({
  usable: false,
  equivalentPoints: 0, // 积分换算比例 eg: 20 积分 = 1 元
  maxDeductionRatio: 0, // 下单最高抵扣比例（小数）
  minPaymentAmount: 0, // 下单实付抵扣门槛（元）
  maxUsablePoints: 0,
  minDeductionPoints: 0,
  unusableReason: "",
});
const usePointsNumber = ref(0); // 输入的积分数量（用户填写）
//积分可抵扣最大金额
const scoreMaxMoney = computed(() => {
  return (
    carts.orderCostSummary.finalPayAmount +
    carts.orderCostSummary.pointDeductionAmount -
    carts.orderCostSummary.merchantReduction.actualAmount
  );
});
watch(
  () => scoreMaxMoney.value,
  (newval, oldval) => {
    if (newval != oldval) {
      pointsInit();
    }
  }
);

async function pointsInit() {
  if (!carts.vipUser.id) {
    return;
  }
  const { pointsConfig, pointsUser } = await PointsApi.calcOrderUsablePoints({
    shopUserId: carts.vipUser.id,
  });

  // 不修改 accountPoints（为余额），将积分保存到 pointBalance 字段
  carts.vipUser.pointBalance = pointsUser && pointsUser.id ? pointsUser.pointBalance : 0;

  // 保险取值
  const eq = pointsConfig?.equivalentPoints || 0;
  const rawMaxRatio = pointsConfig?.maxDeductionRatio || 0;
  // 兼容后端返回的百分比或小数两种形式：如果大于1，则视为百分比（如100表示100%），需除以100
  const maxRatio = rawMaxRatio > 1 ? rawMaxRatio / 100 : rawMaxRatio;
  const minPay = pointsConfig?.minPaymentAmount || 0;

  // 计算当前订单可抵扣金额上限（元）
  // 使用“抵扣前实付金额”作为门槛判断（即把当前已应用的积分抵扣金额加回），
  // 避免在已经抵扣导致 finalPay 变小后错误地判定为不可用。
  let finalPay = Number(carts.orderCostSummary.finalPayAmount) || 0;
  const currentPointDeduction = Number(carts.orderCostSummary.pointDeductionAmount) || 0;
  const basePay = finalPay + currentPointDeduction;

  const res = {
    usable: true,
    equivalentPoints: eq,
    maxDeductionRatio: maxRatio,
    minPaymentAmount: minPay,
    maxUsablePoints: 0,
    minDeductionPoints: pointsConfig?.minDeductionPoints || eq,
    unusableReason: "",
  };

  // 如果订单实付低于最小使用门槛，则不可用（门槛仅作为启用条件）
  // 这里使用 basePay（抵扣前实付）进行判断，确保已填写积分后不会回退为不可用
  if (basePay <= 0 || (minPay > 0 && basePay < minPay)) {
    res.usable = false;
    res.unusableReason = `订单实付金额低于 ${minPay} 元，无法使用积分抵扣`;
  } else if (eq <= 0) {
    res.usable = false;
    res.unusableReason = `积分换算比例配置错误，无法使用积分抵扣`;
  } else {
    // 计算基于比例限制的最大抵扣金额（元）
    // 注意：此处不再减少 minPaymentAmount，minPaymentAmount 仅用作是否可用的门槛；
    // 真正的最大抵扣由 maxRatio（抵扣比例）与用户积分数量共同决定。
    // 计算基于比例限制的最大抵扣金额（元），基于抵扣前实付金额
    let maxByRatio = basePay * maxRatio;

    if (res.usable) {
      // 可用积分上限（按等价积分步长对齐到 eq 的倍数）
      const maxByMoney = Math.floor(maxByRatio * eq);
      const userPoints = carts.vipUser.pointBalance || 0;
      let computedMax = Math.min(userPoints, maxByMoney);
      // 对齐到等价积分步长，保证输入步长生效
      if (eq > 0) {
        computedMax = Math.floor(computedMax / eq) * eq;
      }
      res.maxUsablePoints = computedMax;
      console.debug("pointsInit debug:", { finalPay: finalPay, basePay: basePay, eq, rawMaxRatio, maxRatio, maxByMoney, userPoints, computedMax });
      // 最小抵扣积分为配置值或等于换算比
      res.minDeductionPoints = pointsConfig?.minDeductionPoints || eq;
      if (res.maxUsablePoints < res.minDeductionPoints) {
        res.usable = false;
        res.unusableReason = `可用积分不足，至少需要 ${res.minDeductionPoints} 积分才可抵扣`;
      }
    }
  }

  pointsRes.value = res;
  carts.pointDeductionRule.pointsPerYuan = res.equivalentPoints;

  if (score.sel == -1) {
    // 未选择使用积分
    return res;
  }

  // 如果可用则默认填充可用最大值（对齐步长），否则清零
  if (res.usable) {
    // 计算默认填充值：基于抵扣前实付的比例上限与等价比计算需要的积分数
    const defaultMaxByMoney = Math.floor(basePay * res.maxDeductionRatio * res.equivalentPoints);
    let defaultPts = Math.min(res.maxUsablePoints || 0, defaultMaxByMoney || 0);
    if (res.equivalentPoints > 0) {
      defaultPts = Math.floor(defaultPts / res.equivalentPoints) * res.equivalentPoints;
    }
    // 最终确保不超过用户积分
    const userPts = carts.vipUser.pointBalance || 0;
    usePointsNumber.value = Math.min(defaultPts, userPts);
  } else {
    usePointsNumber.value = 0;
  }
  if (!res.usable) score.sel = -1;

  return res;
}

// 将输入的积分数转换为抵扣金额并写回 carts.orderCostSummary
function pointsToMoney(val) {
  const cfg = pointsRes.value;
  if (!cfg.usable || cfg.equivalentPoints <= 0) {
    usePointsNumber.value = 0;
    carts.orderCostSummary.pointUsed = 0;
    carts.orderCostSummary.pointDeductionAmount = 0;
    return;
  }

  // 确保为整数积分
  let pts = parseInt(usePointsNumber.value || 0, 10);
  if (isNaN(pts) || pts <= 0) {
    pts = 0;
  }

  // 限制最大值
  if (cfg.maxUsablePoints && pts > cfg.maxUsablePoints) {
    pts = cfg.maxUsablePoints;
  }

  // 计算抵扣金额（元），向下保留两位
  const money = new BigNumber(pts).div(cfg.equivalentPoints).decimalPlaces(2, BigNumber.ROUND_DOWN).toNumber();

  // 再次校验不超过允许的最大抵扣金额（基于比例或门槛）
  let finalPay = Number(carts.orderCostSummary.finalPayAmount) || 0;
  let maxByRatio = finalPay * cfg.maxDeductionRatio;
  // 对于单笔抵扣：若订单实付低于配置的最小门槛，则不可使用（作为启用条件）
  if (cfg.minPaymentAmount > 0 && finalPay < cfg.minPaymentAmount) {
    usePointsNumber.value = 0;
    carts.orderCostSummary.pointUsed = 0;
    carts.orderCostSummary.pointDeductionAmount = 0;
    return;
  }
  const maxAllowedMoney = new BigNumber(maxByRatio).decimalPlaces(2, BigNumber.ROUND_DOWN).toNumber();
  console.debug("pointsToMoney debug:", { finalPay, cfg, pts, money, maxByRatio, maxAllowedMoney });
  if (money > maxAllowedMoney) {
    // 调整积分到允许的最大金额对应的积分
    const allowedPts = Math.floor(maxAllowedMoney * cfg.equivalentPoints);
    pts = Math.min(allowedPts, cfg.maxUsablePoints);
  }

  usePointsNumber.value = pts;
  const finalMoney = new BigNumber(pts).div(cfg.equivalentPoints).decimalPlaces(2, BigNumber.ROUND_DOWN).toNumber();
  carts.orderCostSummary.pointUsed = pts;
  carts.orderCostSummary.pointDeductionAmount = finalMoney;
}

const emits = defineEmits(["chooseUser", "paysuccess"]);
function chooseUser() {
  emits("chooseUser");
}

const score = reactive({
  list: [],
  sel: -1,
});

const payTypes = reactive({
  list: [],
  sel: 0,
});
watch(
  () => score.sel,
  (newval) => {
    console.log(newval);
    usePointsNumber.value = 0;
    pointsInit();
  }
);
watch(
  () => usePointsNumber.value,
  (newval) => {
    carts.userPoints = newval;
  }
);
function canUsePayType(item) {
  if (currentpayMoney.value * 1 == 0) {
    return item.payType == "cash" ? false : true;
  }
  // if (item.payType == "virtual" && item.payName == "会员支付") {
  //   return props.user.id ? false : true;
  // }

  return false;
}
const refScanPay = ref();
function changePayType(i) {
  const payType = payTypes.list[i].payType;
  payTypes.sel = i;
  if (payType == "member-account") {
    return chooseUser();
  }
  refScanPayOpen(payType);
}

function returnPayParams() {
  console.log("carts.orderCostSummary", carts.orderCostSummary);
  return {
    money: currentpayMoney.value * 1,
    shopId: localStorage.getItem("shopId"),
    authCode: authCode,
    checkOrderPay: {
      vipPrice: shopUser.userInfo.isMemberPrice && carts.vipUser.id && carts.vipUser.isVip ? 1 : 0,
      orderId: props.orderInfo.id,
      // discountRatio: (checkOrderPay.discount / 100).toFixed(2),
      discountRatio: 0,
      seatNum: carts.dinnerType == "dine-in" ? props.perpole * 1 : 0,
      originAmount: carts.orderCostSummary.goodsRealAmount,
      discountAmount: discountAmount.value,
      productCouponDiscountAmount: carts.orderCostSummary.productCouponDeduction,
      otherCouponDiscountAmount: carts.orderCostSummary.fullCouponDeduction,
      orderAmount: carts.orderCostSummary.finalPayAmount, // 最终订单金额
      roundAmount: props.orderInfo.roundAmount,
      pointsDiscountAmount: carts.orderCostSummary.pointDeductionAmount, //积分抵扣金额
      pointsNum: carts.orderCostSummary.pointUsed,
      discountActAmount: carts.orderCostSummary.fullReduction.actualAmount, // 满减活动金额
      discountActId:
        carts.orderCostSummary.fullReduction.usedThreshold !== undefined
          ? carts.orderCostSummary.fullReduction.usedThreshold.activityId
          : "", // 满减活动id
      couponList: carts.coupons.map((v) => v.id),
      userId: carts.vipUser.userId || "",
      allPack: carts.dinnerType == "take-out" ? 1 : 0,
      limitRate: carts.limitDiscountRes,
      newCustomerDiscountId: carts.newUserDiscount !== null ? carts.newUserDiscount.id : "", // 新客立减Id
      newCustomerDiscountAmount:
        carts.newUserDiscount !== null ? carts.newUserDiscount.amount : 0, // 新客立减金额
      vipDiscountAmount: carts.orderCostSummary.vipDiscountAmount, // 超级会员折扣
    },
  };
}

function refScanPayOpen(payType) {
  if (payType == "member-account") {
    chooseUser();
    return;
  }
  if (payType == "deposit") {
    return refScanPay.value.open(returnPayParams(), "deposit");
  }
  if (payType == "scanCode") {
    return refScanPay.value.open(returnPayParams(), "scanCode");
  }
  if (payType == "arrears") {
    refGuaZhangShow();
    return;
  }
}

async function getPaytype() {
  const res = await payTypeApi.getList();
  payTypes.list = res.filter((v) => v.isDisplay);
  if (currentpayMoney.value * 1 <= 0) {
    payTypes.sel = payTypes.list.findIndex((v) => v.payType == "cash");
  }
}
function nowPayClick(payType) {
  payType = payType || payTypes.list[payTypes.sel].payType;
  if (payType === "cash") {
    ElMessageBox.confirm("是否确认已现金收款：" + currentpayMoney.value + "元", "快捷支付", {
      confirmButtonText: "确定",
      cancelButtonText: "取消",
      type: "warning",
    })
      .then(() => {
        payOrder("cash");
      })
      .catch(() => { });
    return;
  }
  if (payType == "member-account") {
    if (!carts.vipUser.id) {
      return ElMessage.error("请先选择会员");
    }
    payOrder(payType);
    return;
  }

  refScanPayOpen(payType);
}

let authCode = "";
function refScanPayConfirm($authCode, isScan) {
  const payType = payTypes.list[payTypes.sel].payType;
  authCode = $authCode;
  payOrder(payType, isScan);
}

let payTimer = null;
//是否是正扫
async function payOrder(payType, isScan, guazhangren) {
  clearTimeout(payTimer);
  const loading = ElLoading.service({
    lock: true,
    text: "支付中，请稍等……",
    background: "rgba(0, 0, 0, 0.7)",
  });
  payTimer = setTimeout(() => {
    ElMessage.error("支付超时");
    loading.close();
  }, 1000 * 20);
  let res = undefined;
  console.log(payType);
  try {
    if (payType == "scanCode") {
      res = isScan
        ? await payApi.scanPay(returnPayParams())
        : await payApi.microPay(returnPayParams());
    }
    if (payType == "cash") {
      res = await payApi.cashPay(returnPayParams());
    }
    if (payType == "deposit") {
      res = await payApi.vipPay({ ...returnPayParams(), payType: "scanCode" });
    }
    if (payType == "member-account") {
      res = await payApi.vipPay({
        ...returnPayParams(),
        payType: "userPay",
        shopUserId: carts.vipUser.id,
      });
    }
    if (payType == "arrears") {
      res = await payApi.creditPay({ ...returnPayParams(), creditBuyerId: guazhangren.id });
    }
    carts.clear();
  } catch (error) {
    console.log(error);
    clearTimeout(payTimer);
    loading.close();
  }

  if (res) {
    loading.close();
    paysuccess();
  }
}

function paysuccess() {
  clearTimeout(payTimer);
  ElMessage.success("支付成功");
  emits("paysuccess");
}
//整单改价
const discountAmount = computed(() => {
  const money = carts.goodsTotal - productCouponDiscountAmount.value;
  if (checkOrderPay.discount) {
    return ((money * (100 - checkOrderPay.discount)) / 100).toFixed(2);
  }
  return checkOrderPay.discountAmount;
});
//满减优惠券
const fullCouponDiscountAmount = computed(() => {
  return (
    carts.orderCostSummary.fullCouponDeduction || props.orderInfo.fullCouponDiscountAmount || 0
  );
});
//商品券抵扣金额
const productCouponDiscountAmount = computed(() => {
  // 优先从 Store 扩展字段取，若无则用 props 数据（过渡方案）
  return carts.orderCostSummary.productCouponDeduction;
});

const totalPrice = computed(() => {
  // 使用bignumber.js处理高精度计算
  const originalAmount = new BigNumber(carts.orderCostSummary.goodsOriginalAmount);
  const discountAmount = new BigNumber(carts.orderCostSummary.goodsDiscountAmount);
  const couponDeduction = new BigNumber(carts.orderCostSummary.couponDeductionAmount);
  const merchantReduction = new BigNumber(carts.orderCostSummary.merchantReduction.actualAmount);
  const pointDeduction = new BigNumber(carts.orderCostSummary.pointDeductionAmount);

  // 逐步计算：原价 - 商品折扣 - 优惠券 - 商家减免 - 积分抵扣
  const total = originalAmount
    .minus(discountAmount)
    .minus(couponDeduction)
    .minus(merchantReduction)
    .minus(pointDeduction)
    .decimalPlaces(2, BigNumber.ROUND_DOWN); // 保持与工具库一致的舍入策略
  const n = total.toNumber();
  if (n <= 0) {
    return 0;
  }
  return total.toNumber();
});

//应付金额
const currentpayMoney = computed(() => {
  return carts.orderCostSummary.finalPayAmount;
});
watch(
  () => currentpayMoney.value,
  (newval) => {
    if (newval * 1 <= 0) {
      payTypes.sel = payTypes.list.findIndex((v) => v.payType == "cash");
    }
  }
);

onMounted(() => {
  carts.payParamsInit();
  getPaytype();

  if (carts.vipUser.id) {
    pointsInit();
  }
});
defineExpose({
  nowPayClick,
});
</script>

<style lang="scss" scoped>
.userinfo {
  display: flex;
  align-items: center;
  line-height: 1;
  cursor: pointer;
}

.vip {
  padding: 2px 5px;
  background: #f7793d;
  color: #fff;
  border-radius: 4px;
  margin-left: 10px;
  font-size: 10px;
}

.order-box {
  display: flex;
  padding: 20px 20px;
  background-color: #f7f7fa;
  min-height: 100%;

  .left,
  .right {
    flex: 1;
  }

  .left {
    padding-right: 20px;
  }

  .right {
    border-left: 1px solid #ebebeb;
    padding-left: 20px;

    .order-info {
      font-size: 14px;

      .title {
        display: inline-block;
      }

      .value {
        display: inline-block;
      }

      .price {
        color: #fa5555;
        font-size: 20px;
      }
    }
  }
}

.my-select {
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  margin-left: 12px;
  cursor: pointer;
  font-size: 14px;
  color: #666;
  padding: 8px 10px 8px 20px;
}
</style>