<template>
  <view class="order-info">
    <view class="order-item">
      <text class="label">订单号</text>
      <text class="value">{{ orderData.orderId }}</text>
    </view>
    <view class="order-item">
      <text class="label">流水号</text>
      <text class="value">{{ orderData.paySerialNumber }}</text>
    </view>
    <view class="order-item">
      <text class="label">支付方式</text>
      <text class="value">{{ payWayText }}</text>
    </view>
    <!-- 在已退款状态显示 -->
    <view v-if="orderData.orderStatus === '4'" class="order-item">
      <text class="label">退款单号</text>
      <text class="value">{{ orderData.refundOrderNo }}</text>
    </view>
    <view class="line"></view>
    <view class="order-item amount">
      <text class="label">实际支付金额</text>
      <text class="value">{{ formattedAmount }}</text>
    </view>
    <!-- 根据订单状态动态显示按钮 -->
    <button
      v-if="shouldShowButton"
      :class="['reserve-button', { loading: isLoading }]"
      :disabled="isLoading"
      @click="handleButtonClick"
    >
      {{ isLoading ? "处理中..." : buttonText }}
    </button>
    <view class="feedback">
      <text @click="openFeedback">投诉反馈</text>
    </view>
  </view>
</template>

<script setup>
import { defineProps, computed, ref, defineEmits } from "vue";
import {
  preOrder,
  orderPayNow,
  orderCancel,
  orderRefund,
} from "@/request/api/OrderApi";

// 支付方式映射常量
const PAY_WAY_MAP = {
  0: "微信",
  1: "支付宝",
  2: "云闪付",
};

// 加载状态
const isLoading = ref(false);

// 定义事件发射器
const emit = defineEmits(['show-refund-popup']);

const props = defineProps({
  orderData: {
    type: Object,
    required: true,
    default: () => ({
      orderId: "",
      paySerialNumber: "",
      payWay: "", // 支付方式 0-微信 1-支付宝 2-云闪付
      payAmt: "",
      orderStatus: "0", // 订单状态 0-待支付 1-待确认 2-待使用 3-已取消 4-退款中 5-已关闭 6-已完成
      orderType: "0", // 0-酒店订单, 1-门票订单, 2-餐饮
    }),
  },
});

// 使用计算属性缓存支付方式文本
const payWayText = computed(() => {
  return PAY_WAY_MAP[props.orderData.payWay] || "未知支付方式";
});

// 格式化金额显示
const formattedAmount = computed(() => {
  const amount = props.orderData.payAmt;
  return amount ? `${parseFloat(amount).toFixed(2)}` : "0.00";
});

// 按钮文案逻辑
const buttonText = computed(() => {
  const status = props.orderData.orderStatus;
  switch (status) {
    case "0": // 待支付状态
      return "立即支付";
    case "2": // 待使用状态
      return "申请退款";
    default: // 其他状态
      return "再次预定";
  }
});

// 是否显示按钮（退款中状态不显示）
const shouldShowButton = computed(() => {
  return props.orderData.orderStatus !== "4"; // 4-退款中
});

// 处理按钮点击事件
const handleButtonClick = async () => {
  if (isLoading.value) return; // 防止重复点击

  const status = props.orderData.orderStatus;
  const orderId = props.orderData.orderId;
  // 支付方式
  const payWay = props.orderData.payWay;
  // 支付渠道
  const paySource = "1";

  if (status === "2") {
    // 情况2：待使用状态，显示退款弹窗
    emit('show-refund-popup');
    return; // 直接返回，不执行后续代码
  }

  try {
    isLoading.value = true;

    // 情况1：待支付状态或其他状态，先预下单再支付
    // 第一步：预下单
    const res = await orderPayNow({ orderId, payWay, paySource });
    console.log(res);

    // 仅作为示例，非真实参数信息。
    uni.requestPayment({
      provider: "wxpay",
      timeStamp: String(Date.now()),
      nonceStr: "A1B2C3D4E5",
      package: "prepay_id=wx20180101abcdefg",
      signType: "MD5",
      paySign: "",
      success: (res) => {
        console.log("success:" + JSON.stringify(res));
      },
      fail: (err) => {
        console.log("fail:" + JSON.stringify(err));
      },
    });
  } catch (error) {
    console.error("操作失败:", error);
    uni.showToast({
      title: error.message || "操作失败，请重试",
      icon: "none",
    });
  } finally {
    isLoading.value = false;
  }
};

// 投诉电话
const openFeedback = () => {
  const phoneNumber = props.orderData.complaintHotline;
  uni.makePhoneCall({ phoneNumber });
};
</script>

<style scoped lang="scss">
@import "./styles/index.scss";
</style>
