<template>
  <view class="order-page">
    <!-- 顶部Tab切换 -->
    <view class="tab-header">
      <view 
        class="tab-item" 
        :class="{ active: currentTab === 'all' }"
        @click="switchTab('all')"
      >
        <text class="tab-text">全部订单</text>
        <view class="tab-line" v-if="currentTab === 'all'"></view>
      </view>
      <view 
        class="tab-item" 
        :class="{ active: currentTab === 'paid' }"
        @click="switchTab('paid')"
      >
        <text class="tab-text">已支付</text>
        <view class="tab-line" v-if="currentTab === 'paid'"></view>
      </view>
      <view 
        class="tab-item" 
        :class="{ active: currentTab === 'unpaid' }"
        @click="switchTab('unpaid')"
      >
        <text class="tab-text">未支付</text>
        <view class="tab-line" v-if="currentTab === 'unpaid'"></view>
      </view>
    </view>

    <!-- 数量统计和筛选 -->
    <view class="filter-bar">
      <text class="total-count">总数量: {{ filteredOrders.length }}</text>
      <view class="search-btn" @click="showFilterSidebar = true">
        <text class="search-icon">🔍</text>
      </view>
    </view>

    <!-- 筛选条件显示 -->
    <view class="filter-condition" v-if="filterStartTime || filterEndTime">
      <text class="filter-text">{{ filterStartTime }} - {{ filterEndTime }}</text>
      <text class="filter-clear" @click="clearFilter">✕</text>
    </view>

    <!-- 订单列表 -->
    <scroll-view class="order-scroll" scroll-y>
      <view class="order-list">
        <view 
          class="order-card" 
          v-for="(order, index) in filteredOrders" 
          :key="index"
        >
          <!-- 第一行: 日期 + 状态 -->
          <view class="order-header">
            <text class="order-date">{{ order.create_time }}</text>
            <text class="order-status" :class="{ paid: order.status === 'paid', unpaid: order.status === 'unpaid' }">
              {{ order.status === 'paid' ? '已支付' : '未支付' }}
            </text>
          </view>
          <view class="divider"></view>

          <!-- 商品列表（整体可点击跳转） -->
          <view class="product-section" @click="goToDetail(order)">
            <view class="product-list">
              <view 
                class="product-item" 
                v-for="(product, pIndex) in order.products" 
                :key="pIndex"
              >
                <image class="product-img" :src="product.image" mode="aspectFill" />
                <view class="product-info">
                  <text class="product-name">{{ product.name }}</text>
                  <text class="product-price-qty">￥{{ product.price }} x {{ product.quantity }}</text>
                </view>
              </view>
            </view>
            <view class="product-arrow">
              <text class="arrow-icon">›</text>
            </view>
          </view>

          <!-- 总计 -->
          <view class="order-total">
            <text class="total-qty">共{{ order.totalQuantity }}件</text>
            <view class="total-amount">
              <text class="total-label">总计:</text>
              <text class="total-price">￥{{ order.totalAmount }}</text>
            </view>
          </view>

          <!-- 操作按钮 -->
          <view class="order-action">
            <view 
              class="action-btn" 
              :class="{ 'pay-btn': order.status === 'unpaid', 'refund-btn': order.status === 'paid' }"
              @click="handleAction(order)"
            >
              {{ order.status === 'unpaid' ? '立即支付' : '申请退款' }}
            </view>
          </view>
        </view>

        <!-- 空状态 -->
        <view class="empty-state" v-if="filteredOrders.length === 0">
          <text class="empty-text">暂无订单</text>
        </view>
      </view>
      <view class="bottom-spacer"></view>
    </scroll-view>

    <!-- 筛选侧边栏 -->
    <view class="filter-sidebar-mask" v-if="showFilterSidebar" @click="showFilterSidebar = false">
      <view class="filter-sidebar" @click.stop>
        <view class="sidebar-header">
          <text class="sidebar-title">筛选条件</text>
          <text class="sidebar-close" @click="showFilterSidebar = false">✕</text>
        </view>
        <view class="sidebar-content">
          <view class="date-row">
            <text class="date-label">开始时间</text>
            <picker 
              mode="date" 
              :value="tempStartTime" 
              @change="onStartTimeChange"
            >
              <view class="date-picker">
                <text class="date-value">{{ tempStartTime || '请选择' }}</text>
              </view>
            </picker>
          </view>
          <view class="date-row">
            <text class="date-label">结束时间</text>
            <picker 
              mode="date" 
              :value="tempEndTime" 
              @change="onEndTimeChange"
            >
              <view class="date-picker">
                <text class="date-value">{{ tempEndTime || '请选择' }}</text>
              </view>
            </picker>
          </view>
        </view>
        <view class="sidebar-footer">
          <view class="sidebar-btn reset-btn" @click="resetFilter">
            <text class="btn-text">重置</text>
          </view>
          <view class="sidebar-btn confirm-btn" @click="confirmFilter">
            <text class="btn-text">确定</text>
          </view>
        </view>
      </view>
    </view>

    <!-- 底部导航条 -->
    <page-nav-bar
      :hasPrev="true"
      :hasNext="false"
      @prev="handleNavPrev"
      @next="handleNavNext"
    />
  </view>
</template>

<script>
import PageNavBar from '@/components/page-nav-bar/page-nav-bar.vue';
import { checkLoginWithPrompt } from '@/utils/auth-guard.js';

export default {
  components: { PageNavBar },
  data() {
    return {
      currentTab: 'all',
      showFilterSidebar: false,
      tempStartTime: '',
      tempEndTime: '',
      filterStartTime: '',
      filterEndTime: '',
      // 模拟订单数据
      orderList: [
        {
          id: 1,
          create_time: '2026-04-30 10:25:30',
          status: 'paid',
          products: [
            { name: '君乐宝450ml悦鲜活', price: 0.01, quantity: 2, image: '/static/c1.png' },
            { name: '可口可乐330ml', price: 3.00, quantity: 1, image: '/static/c4.png' }
          ],
          totalQuantity: 3,
          totalAmount: '0.04'
        },
        {
          id: 2,
          create_time: '2026-04-29 15:12:45',
          status: 'unpaid',
          products: [
            { name: '农夫山泉550ml', price: 2.00, quantity: 3, image: '/static/c5.png' }
          ],
          totalQuantity: 3,
          totalAmount: '6.00'
        },
        {
          id: 3,
          create_time: '2026-04-28 09:30:00',
          status: 'paid',
          products: [
            { name: '乐事薯片原味75g', price: 7.50, quantity: 1, image: '/static/c6.png' },
            { name: '白桔（0.0.0.0-5.5.5）', price: 0.05, quantity: 5, image: '/static/c3.png' }
          ],
          totalQuantity: 6,
          totalAmount: '1.00'
        },
        {
          id: 4,
          create_time: '2026-04-27 18:45:20',
          status: 'unpaid',
          products: [
            { name: '白红（0.0.0.0-9.9.9）', price: 0.06, quantity: 10, image: '/static/c2.png' }
          ],
          totalQuantity: 10,
          totalAmount: '0.60'
        },
        {
          id: 5,
          create_time: '2026-04-25 12:00:00',
          status: 'paid',
          products: [
            { name: '君乐宝450ml悦鲜活', price: 0.01, quantity: 1, image: '/static/c1.png' }
          ],
          totalQuantity: 1,
          totalAmount: '0.01'
        }
      ]
    };
  },
  computed: {
    filteredOrders() {
      let list = this.orderList;
      
      // Tab筛选
      if (this.currentTab === 'paid') {
        list = list.filter(o => o.status === 'paid');
      } else if (this.currentTab === 'unpaid') {
        list = list.filter(o => o.status === 'unpaid');
      }
      
      // 日期筛选
      if (this.filterStartTime) {
        list = list.filter(o => o.create_time >= this.filterStartTime);
      }
      if (this.filterEndTime) {
        list = list.filter(o => o.create_time.split(' ')[0] <= this.filterEndTime);
      }
      
      return list;
    }
  },
  onLoad() {
    // 进入订单页需要登录
    if (!checkLoginWithPrompt('order')) return;
  },
  methods: {
    switchTab(tab) {
      this.currentTab = tab;
    },
    onStartTimeChange(e) {
      this.tempStartTime = e.detail.value;
    },
    onEndTimeChange(e) {
      this.tempEndTime = e.detail.value;
    },
    resetFilter() {
      this.tempStartTime = '';
      this.tempEndTime = '';
    },
    confirmFilter() {
      this.filterStartTime = this.tempStartTime;
      this.filterEndTime = this.tempEndTime;
      this.showFilterSidebar = false;
    },
    clearFilter() {
      this.filterStartTime = '';
      this.filterEndTime = '';
    },
    goToDetail(order) {
      uni.showToast({ title: '订单详情开发中', icon: 'none' });
    },
    handleAction(order) {
      if (order.status === 'unpaid') {
        // 支付需要登录
        if (!checkLoginWithPrompt('pay')) return;
        uni.showModal({
          title: '立即支付',
          content: `确认支付￥${order.totalAmount}？`,
          success: (res) => {
            if (res.confirm) {
              uni.showToast({ title: '支付成功', icon: 'success' });
            }
          }
        });
      } else {
        uni.showModal({
          title: '申请退款',
          content: '确认申请退款？',
          success: (res) => {
            if (res.confirm) {
              uni.showToast({ title: '退款申请已提交', icon: 'success' });
            }
          }
        });
      }
    },
    handleNavPrev() {
      uni.navigateBack({ fail: () => { uni.switchTab({ url: '/pages/index/index' }); } });
    },
    handleNavNext() {
      uni.showToast({ title: '暂无下一页', icon: 'none' });
    }
  }
};
</script>

<style scoped>
page { height: 100%; background-color: #f5f5f5; }

.order-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background-color: #f5f5f5;
}

/* 顶部Tab */
.tab-header {
  display: flex;
  background: #fff;
  padding: 0 24rpx;
}
.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28rpx 0 20rpx;
  position: relative;
}
.tab-text {
  font-size: 30rpx;
  color: #666;
}
.tab-item.active .tab-text {
  color: #2979ff;
  font-weight: bold;
}
.tab-line {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48rpx;
  height: 6rpx;
  background: #2979ff;
  border-radius: 3rpx;
}

/* 筛选栏 */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20rpx 28rpx;
  background: #fff;
  border-top: 1rpx solid #f0f0f0;
}
.total-count {
  font-size: 28rpx;
  color: #333;
}
.search-btn {
  padding: 8rpx 16rpx;
}
.search-icon {
  font-size: 36rpx;
}

/* 筛选条件显示 */
.filter-condition {
  display: flex;
  align-items: center;
  padding: 16rpx 28rpx;
  background: #e8f4ff;
}
.filter-text {
  font-size: 26rpx;
  color: #2979ff;
  flex: 1;
}
.filter-clear {
  font-size: 28rpx;
  color: #999;
  padding: 8rpx;
}

/* 订单列表 */
.order-scroll {
  flex: 1;
  height: 0;
}
.order-list {
  padding: 20rpx;
}
.order-card {
  background: #fff;
  border-radius: 16rpx;
  margin-bottom: 20rpx;
  padding: 24rpx;
}

/* 订单头部 */
.order-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.order-date {
  font-size: 26rpx;
  color: #666;
}
.order-status {
  font-size: 26rpx;
  font-weight: bold;
}
.order-status.paid {
  color: #19be6b;
}
.order-status.unpaid {
  color: #e4393c;
}
.divider {
  height: 1rpx;
  background: #f0f0f0;
  margin: 20rpx 0;
}

/* 商品列表 */
.product-section {
  display: flex;
  align-items: stretch;
  margin-bottom: 20rpx;
}
.product-list {
  flex: 1;
  min-width: 0;
}
.product-item {
  display: flex;
  align-items: center;
  padding: 16rpx 0;
}
.product-img {
  width: 100rpx;
  height: 100rpx;
  border-radius: 8rpx;
  background: #f0f0f0;
  flex-shrink: 0;
}
.product-info {
  flex: 1;
  margin-left: 20rpx;
  min-width: 0;
}
.product-name {
  font-size: 28rpx;
  font-weight: bold;
  color: #333;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.product-price-qty {
  font-size: 24rpx;
  color: #999;
  margin-top: 8rpx;
  display: block;
}
.product-arrow {
  display: flex;
  align-items: center;
  padding: 0 16rpx 0 20rpx;
}
.arrow-icon {
  font-size: 52rpx;
  color: #bbb;
}

/* 总计 */
.order-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16rpx;
  border-top: 1rpx solid #f0f0f0;
}
.total-qty {
  font-size: 26rpx;
  color: #666;
}
.total-amount {
  display: flex;
  align-items: center;
}
.total-label {
  font-size: 26rpx;
  color: #666;
}
.total-price {
  font-size: 32rpx;
  font-weight: bold;
  color: #e4393c;
  margin-left: 4rpx;
}

/* 操作按钮 */
.order-action {
  display: flex;
  justify-content: flex-end;
  margin-top: 20rpx;
}
.action-btn {
  padding: 16rpx 40rpx;
  border-radius: 40rpx;
  font-size: 26rpx;
}
.pay-btn {
  background: linear-gradient(135deg, #2979ff, #1e60e0);
  color: #fff;
}
.refund-btn {
  background: #fff;
  border: 2rpx solid #2979ff;
  color: #2979ff;
}

/* 空状态 */
.empty-state {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 100rpx 0;
}
.empty-text {
  font-size: 28rpx;
  color: #999;
}

/* 筛选侧边栏 */
.filter-sidebar-mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
}
.filter-sidebar {
  position: absolute;
  top: 0;
  right: 0;
  width: 600rpx;
  height: 100%;
  background: #fff;
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32rpx 28rpx;
  border-bottom: 1rpx solid #f0f0f0;
}
.sidebar-title {
  font-size: 32rpx;
  font-weight: bold;
  color: #333;
}
.sidebar-close {
  font-size: 36rpx;
  color: #999;
  padding: 8rpx;
}
.sidebar-content {
  flex: 1;
  padding: 28rpx;
}
.date-row {
  margin-bottom: 32rpx;
}
.date-label {
  font-size: 28rpx;
  color: #333;
  margin-bottom: 16rpx;
  display: block;
}
.date-picker {
  background: #f5f5f5;
  border-radius: 8rpx;
  padding: 24rpx;
}
.date-value {
  font-size: 28rpx;
  color: #333;
}
.sidebar-footer {
  display: flex;
  padding: 28rpx;
  border-top: 1rpx solid #f0f0f0;
}
.sidebar-btn {
  flex: 1;
  padding: 24rpx 0;
  text-align: center;
  border-radius: 8rpx;
  margin: 0 8rpx;
}
.reset-btn {
  background: #f5f5f5;
}
.confirm-btn {
  background: #2979ff;
}
.reset-btn .btn-text {
  color: #666;
}
.confirm-btn .btn-text {
  color: #fff;
}
.btn-text {
  font-size: 28rpx;
}

/* 底部占位 */
.bottom-spacer {
  height: 120rpx;
}
</style>