<script setup lang="ts">
import { onMounted, ref, computed } from "vue";
import { useRouter, useRoute } from "vue-router";
import { showDialog, showToast } from "vant";
import MobileBottomNav from "@/components/MobileBottomNav.vue";

import { fetchOrders, startOrderPayment, type Order, type PaymentOrder } from "@/features/orders/api/orders";
import { useSessionStore } from "@/stores/session";
import { formatDateMinute } from "@/utils/time";

const router = useRouter();
const route = useRoute();
const session = useSessionStore();
const loading = ref(false);
const orders = ref<Order[]>([]);
const activeTab = ref("all");
const payingOrderId = ref<number | null>(null);

onMounted(() => {
  loadOrders();
  if (route.query.tab) {
    activeTab.value = String(route.query.tab);
  }
});

async function loadOrders() {
  loading.value = true;
  try {
    orders.value = await fetchOrders();
  } catch {
    showToast({ message: "订单加载失败，请稍后重试", icon: "warning-o" });
  } finally {
    loading.value = false;
  }
}

/* 状态筛选 */
const statusTabs = [
  { key: "all", label: "全部" },
  { key: "pending_payment", label: "待支付" },
  { key: "pending_handoff", label: "待交接" },
  { key: "renting", label: "使用中" },
  { key: "pending_checkout_confirm", label: "待结账" },
  { key: "completed", label: "已完成" },
];

const displayOrders = computed(() => {
  if (activeTab.value === "all") return orders.value;
  return orders.value.filter((o) => o.status === activeTab.value);
});

function statusLabel(status: string) {
  const map: Record<string, string> = {
    pending_payment: "待支付",
    pending_handoff: "待交接",
    renting: "使用中",
    overdue: "已逾期",
    pending_return_confirm: "待结账",
    pending_checkout_confirm: "待号主确认",
    pending_checkout_accept: "待租客确认",
    checkout_disputing: "结账争议中",
    completed: "已完成",
    cancelled: "已取消",
    disputing: "申诉中",
    abnormal: "异常",
    closed: "已关闭",
  };
  return map[status] || status;
}

function goDetail(id: number) {
  router.push(`/m/orders/${id}`);
}

async function handlePay(order: Order) {
  payingOrderId.value = order.id;
  try {
    const payment = await startOrderPayment(order.id);
    if (payment.paid) {
      showToast({ message: "支付成功，等待号主交接", icon: "passed" });
      await loadOrders();
    } else {
      openPaymentCashier(payment);
    }
  } catch (error) {
    showToast({ message: readError(error, "支付失败"), icon: "cross" });
  } finally {
    payingOrderId.value = null;
  }
}

function openPaymentCashier(payment: PaymentOrder) {
  const payURL = payment.jspay_url || payment.td_code || payment.jspay_info || "";
  if (payURL && /^https?:\/\//i.test(payURL)) {
    window.location.href = payURL;
    return;
  }
  showDialog({
    title: "订单支付",
    message: payURL || "支付单已创建，请在订单详情页刷新支付状态。",
    confirmButtonText: "查看详情",
  }).then(() => {
    router.push(`/m/orders/${payment.order_id}`);
  });
}

function readError(error: unknown, fallback: string) {
  if (typeof error === "object" && error && "response" in error) {
    const response = (error as { response?: { data?: { message?: string } } })
      .response;
    return response?.data?.message || fallback;
  }
  return fallback;
}

function money(value: unknown) {
  return Math.round(Number(value || 0));
}

function isOwner(order: Order) {
  return order.owner_id === session.userId;
}

function amountLabel(order: Order) {
  return isOwner(order) ? "预计租金" : "支付租金";
}

function orderRentAmount(order: Order) {
  if (isOwner(order)) return Number(order.owner_rent_amount ?? order.display_amount ?? 0);
  return Number(order.rent_amount ?? order.display_amount ?? 0);
}

function ownerActualIncome(order: Order) {
  if (!isOwner(order)) return null;
  const value = order.checkout?.owner_income_amount;
  return typeof value === "number" ? value : null;
}
</script>

<template>
  <main class="mobile-orders">
    <!-- 顶部导航 -->
    <header class="page-header">
      <button class="back-btn" @click="router.back()">
        <van-icon name="arrow-left" :size="20" />
      </button>
      <h1>我的订单</h1>
      <span class="header-spacer"></span>
    </header>

    <!-- 状态筛选条 - Vant 滑动标签页 -->
    <van-tabs
      v-model:active="activeTab"
      class="custom-tabs"
      line-width="20px"
      line-height="3px"
      color="#1477ff"
      title-active-color="#1477ff"
      title-inactive-color="#6b7280"
      :border="false"
      swipeable
      animated
    >
      <van-tab
        v-for="tab in statusTabs"
        :key="tab.key"
        :title="tab.label"
        :name="tab.key"
      />
    </van-tabs>

    <!-- 订单列表 -->
    <section class="order-list">
      <van-loading v-if="loading" class="center-loading" size="24px" vertical>
        加载中...
      </van-loading>

      <div v-else-if="displayOrders.length === 0" class="empty-state-wrap">
        <van-empty description="暂无相关订单" image="search" />
      </div>

      <div
        v-else
        v-for="order in displayOrders"
        :key="order.id"
        class="order-card"
        @click="goDetail(order.id)"
      >
        <!-- 卡片头：订单号 + 状态 -->
        <div class="card-header">
          <div class="header-left">
            <span class="order-no">{{ order.order_no }}</span>
          </div>
          <span class="status-badge" :class="'badge-' + order.status">
            {{ statusLabel(order.status) }}
          </span>
        </div>

        <!-- 卡片体：关键信息 -->
        <div class="card-body">
          <h3 class="order-title">{{ order.title }}</h3>
          <div class="tag-row">
            <span class="info-tag">{{ order.server_region }}</span>
            <span class="info-tag">{{ order.login_platform }}</span>
          </div>
          
          <div class="price-row">
            <div class="price-item">
              <span class="price-label">{{ amountLabel(order) }}</span>
              <span class="price-val">¥{{ money(orderRentAmount(order)) }}</span>
              <span v-if="ownerActualIncome(order) !== null" class="price-sub">实际到手 ¥{{ money(ownerActualIncome(order)) }}</span>
            </div>
            <div class="price-item">
              <span class="price-label">押金金额</span>
              <span class="price-val deposit">¥{{ money(order.deposit_amount) }}</span>
            </div>
          </div>
        </div>

        <!-- 卡片底：时间 + 操作 -->
        <div class="card-footer">
          <div class="time-box">
            <van-icon name="clock-o" class="clock-icon" />
            <span class="order-time">{{ formatDateMinute(order.created_at) }}</span>
          </div>
          <div class="footer-action">
            <van-button
              v-if="order.status === 'pending_payment' && order.renter_id === session.userId"
              size="small"
              type="warning"
              round
              class="pay-btn"
              :loading="payingOrderId === order.id"
              @click.stop="handlePay(order)"
            >
              去支付
            </van-button>
            <span v-else class="detail-link">
              查看详情 <van-icon name="arrow" :size="10" />
            </span>
          </div>
        </div>
      </div>
    </section>

    <!-- 底部导航 -->
    <MobileBottomNav />
  </main>
</template>

<style scoped>
.mobile-orders {
  min-height: 100dvh;
  background: #f6f8fa;
  padding-bottom: calc(64px + env(safe-area-inset-bottom));
}

/* ========== 顶部导航 ========== */
.page-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  height: 48px;
  padding: 0 12px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(243, 244, 246, 0.8);
}

.page-header h1 {
  flex: 1;
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  text-align: center;
  color: #111827;
}

.back-btn {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: none;
  background: none;
  color: #374151;
  cursor: pointer;
}

.header-spacer {
  width: 36px;
}

/* ========== Vant Tabs 自定义样式 ========== */
.custom-tabs {
  position: sticky;
  top: 48px;
  z-index: 99;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(243, 244, 246, 0.6);
}

:deep(.van-tabs__nav) {
  background: transparent;
  padding-bottom: 4px;
}

:deep(.van-tab) {
  font-size: 13px;
  font-weight: 600;
}

/* ========== 订单列表 ========== */
.order-list {
  padding: 14px 16px;
}

.center-loading {
  display: flex;
  justify-content: center;
  padding: 60px 0;
}

.empty-state-wrap {
  padding: 40px 0;
}

/* ========== 订单卡片 ========== */
.order-card {
  background: #ffffff;
  border-radius: 16px;
  margin-bottom: 14px;
  padding: 16px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.02), 0 1px 4px rgba(0, 0, 0, 0.02);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
  border: 1px solid rgba(243, 244, 246, 0.9);
  cursor: pointer;
}

.order-card:active {
  transform: scale(0.98);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 10px;
  border-bottom: 1px dashed #f3f4f6;
}

.order-no {
  font-size: 11px;
  color: #9ca3af;
  font-family: monospace;
}

.status-badge {
  padding: 4px 8px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

/* 状态徽章颜色 - 现代轻量化配色 */
.badge-pending_payment { color: #ff6a00; background: rgba(255, 106, 0, 0.08); }
.badge-pending_handoff { color: #d97706; background: rgba(217, 119, 6, 0.08); }
.badge-renting { color: #1477ff; background: rgba(20, 119, 255, 0.08); }
.badge-overdue { color: #ef4444; background: rgba(239, 68, 68, 0.08); }
.badge-pending_return_confirm { color: #8b5cf6; background: rgba(139, 92, 246, 0.08); }
.badge-pending_checkout_confirm { color: #8b5cf6; background: rgba(139, 92, 246, 0.08); }
.badge-pending_checkout_accept { color: #a855f7; background: rgba(168, 85, 247, 0.08); }
.badge-checkout_disputing { color: #ef4444; background: rgba(239, 68, 68, 0.08); }
.badge-completed { color: #10b981; background: rgba(16, 185, 129, 0.08); }
.badge-cancelled { color: #9ca3af; background: rgba(156, 163, 175, 0.08); }
.badge-disputing { color: #ef4444; background: rgba(239, 68, 68, 0.08); }
.badge-abnormal { color: #ef4444; background: rgba(239, 68, 68, 0.08); }
.badge-closed { color: #6b7280; background: rgba(107, 114, 128, 0.08); }

.card-body {
  padding: 12px 0 0;
}

.order-title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: #111827;
  line-height: 1.4;
}

.tag-row {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
}

.info-tag {
  font-size: 11px;
  color: #6b7280;
  background: #f3f4f6;
  padding: 3px 8px;
  border-radius: 6px;
  font-weight: 500;
}

.price-row {
  display: flex;
  background: #f9fafb;
  border-radius: 12px;
  padding: 10px 14px;
  justify-content: space-between;
  gap: 12px;
}

.price-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.price-label {
  font-size: 10px;
  color: #9ca3af;
}

.price-val {
  font-size: 15px;
  font-weight: 800;
  color: #ff5f00;
}

.price-val.deposit {
  color: #374151;
}

.price-sub {
  color: #10b981;
  font-size: 11px;
  font-weight: 700;
}

/* ========== 卡片底部 ========== */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid #f3f4f6;
}

.time-box {
  display: flex;
  align-items: center;
  gap: 4px;
  color: #9ca3af;
}

.clock-icon {
  font-size: 13px;
}

.order-time {
  font-size: 11px;
}

.detail-link {
  font-size: 12px;
  color: #1477ff;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 2px;
}

.pay-btn {
  height: 28px !important;
  padding: 0 16px !important;
  font-size: 12px !important;
  font-weight: 700 !important;
  background: linear-gradient(135deg, #ff8c00, #ff5f00) !important;
  border: none !important;
  box-shadow: 0 4px 10px rgba(255, 95, 0, 0.2) !important;
}
</style>
