<template>
  <div class="order-manage-container">
    <div class="page-title"><i class="title-bar"></i><span>历史购买</span></div>
    <!-- 搜索栏 -->
    <div class="search-bar">
      <el-input v-model="queryParams.keyword" placeholder="搜索订单号" style="width: 200px" clearable @keyup.enter="handleQuery">
        <template #prefix
          ><el-icon><Search /></el-icon
        ></template>
      </el-input>
      <el-date-picker
        v-model="queryParams.dateRange"
        type="daterange"
        range-separator="—"
        start-placeholder="开始日期"
        end-placeholder="结束日期"
        style="width: 240px"
      />
      <el-button type="primary" @click="handleQuery">搜索</el-button>
      <el-button @click="handleReset">重置</el-button>
    </div>
    <!-- 筛选栏 -->
    <div class="filter-bar">
      <span class="filter-label">下单部门</span>
      <el-tree-select
        v-model="queryParams.department"
        style="width: 100px"
        :data="deptList"
        :props="{ value: 'deptId', label: 'deptName', children: 'children' }"
        value-key="deptId"
        placeholder="请选择"
        check-strictly
        :render-after-expand="false"
        clearable
      >
      </el-tree-select>
      <span class="filter-label">状态</span>
      <el-select v-model="queryParams.status" placeholder="请选择" style="width: 100px" clearable>
        <el-option v-for="dict in order_status" :key="dict.value" :label="dict.label" :value="dict.value" />
      </el-select>
      <span class="filter-label">支付方式</span>
      <el-select v-model="queryParams.payType" placeholder="请选择" style="width: 100px" clearable
        ><el-option v-for="dict in pay_method" :key="dict.value" :label="dict.label" :value="dict.value"
      /></el-select>
    </div>
    <!-- Tab切换 -->
    <div class="tab-bar">
      <div class="tab-left">
        <div v-for="tab in statusTabs" :key="tab.key" :class="['tab-item', { active: activeTab === tab.key }]" @click="activeTab = tab.key">
          <el-icon><component :is="tab.icon" /></el-icon><span>{{ tab.label }}</span>
        </div>
      </div>
    </div>
    <!-- 订单列表 -->
    <div class="order-list">
      <div v-for="order in orderList" :key="order.id" class="order-card">
        <div class="order-header">
          <span class="order-time">{{ order.orderTime }}</span>
          <span class="order-info">订单号：{{ order.orderNo }}</span>
          <span class="order-info">下单人：{{ order.orderPerson }}</span>
          <span class="order-info">部门：{{ order.department }}</span>
          <el-button type="danger" size="small" @click="handleAddCart(order)">批量加入购物车</el-button>
          <el-button type="primary" link class="expand-btn" @click="handleExpand(order)"
            >{{ order.expanded ? '收起' : '展开' }} <el-icon><ArrowDown /></el-icon
          ></el-button>
        </div>
        <div v-if="order.countdown" class="countdown-bar">订单锁定剩余时间：{{ order.countdown }}</div>
        <div class="product-list">
          <div v-for="(item, itemIndex) in order.expanded ? order.products : order.products.slice(0, 1)" :key="itemIndex" class="product-row">
            <div class="product-cell product-info-cell">
              <div class="product-image">
                <el-image :src="item.image" fit="contain"
                  ><template #error
                    ><div class="image-placeholder">
                      <el-icon :size="30" color="#ccc"><Picture /></el-icon></div></template
                ></el-image>
              </div>
              <div class="product-detail">
                <div class="product-name">{{ item.name }}</div>
                <div class="product-spec">{{ item.spec1 }} {{ item.spec2 }}</div>
                <div class="product-price">¥{{ item.price }}</div>
              </div>
              <div class="product-quantity">x{{ item.quantity }}</div>
            </div>
            <div class="product-cell amount-cell" v-if="itemIndex === 0">
              <div class="amount-info">
                <span class="label">支付款</span><span class="value highlight">¥{{ order.payAmount }}</span>
              </div>
              <div class="amount-info">
                <span class="label">含运费：</span><span class="value">¥{{ order.freight }}</span>
              </div>
            </div>
            <!-- <div class="product-cell status-cell" v-if="itemIndex === 0">
              <span class="status-text" :style="{ color: getStatusColor(order.status) }">{{ order.statusText }}</span>
              <el-button type="primary" link size="small" @click="handleViewDetail(order)">查看订单轨迹</el-button>
              <template v-if="order.auditStatus"
                ><span :class="['audit-status', getAuditStatusClass(order.auditStatus)]">{{ order.auditStatus }}</span
                ><el-button type="primary" link size="small">查看审批流</el-button></template
              >
              <el-button v-if="order.fileCount" type="primary" link size="small">审核文件({{ order.fileCount }})</el-button>
            </div> -->
            <div class="product-cell action-cell" v-if="itemIndex === 0">
              <el-button type="primary" link size="small" @click="handleAddCart(order)">加入购物车</el-button>
            </div>
          </div>
        </div>
      </div>
      <el-empty v-if="orderList.length === 0" description="暂无订单" />
    </div>
    <!-- 分页 -->
    <TablePagination v-model:page="queryParams.pageNum" v-model:page-size="queryParams.pageSize" :total="total" @change="handleQuery" />
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, computed, onMounted, watch } from 'vue';
import { useRouter } from 'vue-router';
import { Search, ArrowDown, Document, Clock, Box, CircleCheck, CircleClose, Picture } from '@element-plus/icons-vue';
import { TablePagination } from '@/components';
import { getOrderList, getOrderProducts } from '@/api/pc/enterprise/order';
import type { OrderMain } from '@/api/pc/enterprise/orderTypes';
import { ElMessage } from 'element-plus';
import { getDeptTree } from '@/api/pc/organization';
import { DeptInfo } from '@/api/pc/organization/types';
import { addProductShoppingCart } from '@/api/goods/index';
const { proxy } = getCurrentInstance() as ComponentInternalInstance;
const { order_status, pay_method } = toRefs<any>(proxy?.useDict('order_status', 'pay_method'));

const router = useRouter();
const activeTab = ref('all');
const loading = ref(false);

const deptList = ref([]);

const statusTabs = [
  { key: 'all', label: '全部订单', icon: Document },
  { key: 'preOrder', label: '预下单', icon: Clock },
  { key: 'shipping', label: '待收货', icon: Box },
  { key: 'completed', label: '已完成', icon: CircleCheck },
  { key: 'cancelled', label: '已取消', icon: CircleClose }
];

// 监听标签页切换，重置页码并重新获取数据
watch(activeTab, (newTab) => {
  queryParams.pageNum = 1;
  // 根据标签页设置后端查询的状态参数
  if (newTab === 'all') {
    queryParams.status = '';
  } else {
    // 将前端标签页key映射回后端状态值
    const tabToStatusMap: Record<string, string> = {
      'preOrder': '0', // 待支付
      'shipping': '4', // 待发货,部分发货,发货完成
      'completed': '5', // 已完成
      'cancelled': '7' // 已关闭,已取消
    };
    queryParams.status = tabToStatusMap[newTab] || '';
  }
  fetchOrderList();
});

const queryParams = reactive({ keyword: '', dateRange: null, department: '', status: '', payType: '', pageNum: 1, pageSize: 5 });
const total = ref(0);
const allOrders = ref<any[]>([]);

// 将后端状态映射为前端标签页key
const mapBackendStatusToTabKey = (backendStatus: string) => {
  const statusMap: Record<string, string> = {
    '0': 'preOrder', // 待支付
    '1': 'preOrder', // 待确认
    '2': 'shipping', // 待发货
    '3': 'shipping', // 部分发货
    '4': 'shipping', // 发货完成
    '5': 'completed', // 已完成
    '6': 'cancelled', // 已关闭
    '7': 'cancelled' // 已取消
  };
  return statusMap[backendStatus] || backendStatus;
};

// 根据订单状态获取状态文本
const getStatusText = (status: string) => {
  const statusMap: Record<string, string> = {
    '0': '待支付',
    '1': '待确认',
    '2': '待发货',
    '3': '部分发货',
    '4': '发货完成',
    '5': '已完成',
    '6': '已关闭',
    '7': '已取消'
  };
  return statusMap[status] || status;
};

// 加载部门树
const loadDeptTree = async () => {
  try {
    const res = await getDeptTree();
    if (res.code === 200 && res.data) {
      deptList.value = res.data;

      if (Array.isArray(res.data)) {
        const treeData = proxy?.handleTree<DeptInfo>(res.data, 'deptId', 'parentId');
        deptList.value = treeData || res.data;
      } else {
        deptList.value = [];
      }
    }
  } catch (error) {
    console.error('获取部门树失败:', error);
    ElMessage.error('获取部门树失败');
  }
};

// 获取订单列表
const fetchOrderList = async () => {
  loading.value = true;
  try {
    const params: any = {
      pageNum: queryParams.pageNum,
      pageSize: queryParams.pageSize
    };

    // 添加筛选条件
    if (queryParams.keyword) params.orderNo = queryParams.keyword;
    if (queryParams.department) params.department = queryParams.department;
    if (queryParams.status) params.orderStatuses = queryParams.status; // 使用orderStatuses支持多状态查询
    if (queryParams.payType) params.payType = queryParams.payType;
    if (queryParams.dateRange && queryParams.dateRange.length === 2) {
      params.beginTime = queryParams.dateRange[0];
      params.endTime = queryParams.dateRange[1];
    }

    const res = await getOrderList(params);
    if (res.code === 200) {
      // 将后端数据转换为前端需要的格式
      allOrders.value = (res.rows || []).map((order: OrderMain) => ({
        id: order.id,
        orderTime: order.createTime,
        orderNo: order.orderNo,
        orderPerson: order.customerName, // 需要关联用户信息
        department: order.createDeptName, // 需要关联部门信息
        payAmount: order.payableAmount || 0,
        freight: order.shippingFee || 0,
        status: mapBackendStatusToTabKey(order.orderStatus || ''),
        statusText: getStatusText(order.orderStatus || ''),
        countdown: '',
        auditStatus: order.checkStatus,
        fileCount: 0,
        expanded: false,
        products: [] // 商品信息需要单独加载
      }));

      total.value = res.total || 0;
    }
  } catch (error) {
    console.error('获取订单列表失败:', error);
  } finally {
    loading.value = false;
  }
};

const orderList = computed(() => allOrders.value);

const getStatusColor = (status: string) =>
  ({ completed: '#67c23a', preOrder: '#e6a23c', shipping: '#409eff', cancelled: '#909399' })[status] || '#909399';
const getAuditStatusClass = (auditStatus: string) => (auditStatus === '审批通过' ? 'success' : auditStatus === '审批驳回' ? 'danger' : 'warning');

const handleExpand = async (order: any) => {
  const orderIndex = allOrders.value.findIndex((o) => o.id === order.id);
  if (orderIndex === -1) return;

  const currentOrder = allOrders.value[orderIndex];

  if (!currentOrder.expanded && currentOrder.products.length === 0) {
    try {
      const res = await getOrderProducts([order.id]);
      if (res.code === 200 && res.rows) {
        const products = res.rows.map((p: any) => ({
          id: p.productId || p.id,
          image: p.productImage || '',
          name: p.productName || '',
          spec1: p.productUnit || '',
          spec2: p.productNo || '',
          price: p.orderPrice || 0,
          quantity: p.orderQuantity || 0
        }));

        // 替换整个数组以触发响应式更新
        allOrders.value = allOrders.value.map((o, i) => (i === orderIndex ? { ...o, expanded: true, products } : o));
        return;
      }
    } catch (error) {
      console.error('加载商品失败:', error);
      return;
    }
  }

  // 替换整个数组以触发响应式更新
  allOrders.value = allOrders.value.map((o, i) => (i === orderIndex ? { ...o, expanded: !o.expanded } : o));
};

const handleViewDetail = (order: any) => {
  router.push(`/order/orderManage/detail/${order.orderNo}`);
};
const handleQuery = () => {
  queryParams.pageNum = 1;
  fetchOrderList();
};
const handleReset = () => {
  queryParams.keyword = '';
  queryParams.dateRange = null;
  queryParams.department = '';
  queryParams.payType = '';
  queryParams.pageNum = 1;
  fetchOrderList();
};

// 加入购物车
const handleAddCart = async (order: any) => {
  try {
    // 如果商品列表为空，先加载商品
    if (!order.products || order.products.length === 0) {
      const res = await getOrderProducts([order.id]);
      if (res.code === 200 && res.rows) {
        order.products = res.rows.map((p: any) => ({
          id: p.productId || p.id,
          image: p.productImage || '',
          name: p.productName || '',
          spec1: p.productUnit || '',
          spec2: p.productNo || '',
          price: p.orderPrice || 0,
          quantity: p.orderQuantity || 0
        }));
      } else {
        ElMessage.warning('无法获取订单商品信息');
        return;
      }
    }

    // 批量加入购物车
    const promises = order.products.map((product: any) =>
      addProductShoppingCart({
        productId: product.id,
        productNum: product.quantity || 1
      })
    );

    await Promise.all(promises);
    ElMessage.success(`已将${order.products.length}件商品加入购物车`);
  } catch (error) {
    console.error('加入购物车失败:', error);
    ElMessage.error('加入购物车失败');
  }
};

// 页面加载时获取订单列表
onMounted(() => {
  loadDeptTree();
  fetchOrderList();
});
</script>

<style scoped lang="scss">
.order-manage-container {
  padding: 20px;
  background: #fff;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 120px);
}
.page-title {
  font-size: 16px;
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}
.title-bar {
  display: inline-block;
  width: 3px;
  height: 16px;
  background: #e60012;
  border-radius: 2px;
}
.search-bar {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 15px;
}
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
  .filter-label {
    font-size: 14px;
    color: #666;
  }
}
.tab-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #eee;
  margin-bottom: 15px;
  .tab-left {
    display: flex;
    gap: 25px;
  }
  .tab-item {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 12px 0;
    cursor: pointer;
    color: #666;
    font-size: 14px;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    &:hover,
    &.active {
      color: #333;
    }
    &.active {
      border-bottom-color: #e60012;
    }
  }
}
.order-list {
  flex: 1;
  overflow-y: auto;
  margin-bottom: 15px;
  .order-card {
    border: 1px solid #eee;
    border-radius: 4px;
    margin-bottom: 15px;
    overflow: hidden;
    .order-header {
      display: flex;
      align-items: center;
      gap: 15px;
      padding: 12px 15px;
      background: #f9f9f9;
      border-bottom: 1px solid #eee;
      font-size: 13px;
      color: #666;
      .order-time {
        color: #333;
      }
      .expand-btn {
        margin-left: auto;
      }
    }
    .countdown-bar {
      background: #fff5e6;
      color: #e6a23c;
      padding: 8px 15px;
      font-size: 13px;
      border-bottom: 1px solid #eee;
    }
    .product-list {
      .product-row {
        display: flex;
        border-bottom: 1px solid #f5f5f5;
        &:last-child {
          border-bottom: none;
        }
      }
      .product-cell {
        padding: 15px;
        display: flex;
        flex-direction: column;
        justify-content: center;
      }
      .product-info-cell {
        flex: 1;
        flex-direction: row;
        align-items: center;
        gap: 15px;
        .product-image {
          width: 80px;
          height: 80px;
          background: #f5f5f5;
          border-radius: 4px;
          overflow: hidden;
          flex-shrink: 0;
          .el-image {
            width: 100%;
            height: 100%;
          }
          .image-placeholder {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
          }
        }
        .product-detail {
          flex: 1;
          .product-name {
            font-size: 14px;
            color: #333;
            margin-bottom: 5px;
            line-height: 1.4;
          }
          .product-spec {
            font-size: 12px;
            color: #999;
            margin-bottom: 5px;
          }
          .product-price {
            font-size: 16px;
            font-weight: bold;
            color: #e60012;
          }
        }
        .product-quantity {
          font-size: 13px;
          color: #666;
        }
      }
      .amount-cell {
        width: 120px;
        border-left: 1px solid #f5f5f5;
        .amount-info {
          margin-bottom: 5px;
          .label {
            font-size: 12px;
            color: #999;
          }
          .value {
            font-size: 14px;
            color: #333;
            &.highlight {
              font-size: 16px;
              font-weight: bold;
              color: #e60012;
            }
          }
        }
      }
      .status-cell {
        width: 120px;
        border-left: 1px solid #f5f5f5;
        align-items: flex-start;
        gap: 5px;
        .status-text {
          font-size: 14px;
          font-weight: 500;
        }
        .audit-status {
          font-size: 12px;
          &.success {
            color: #e60012;
          }
          &.warning {
            color: #e6a23c;
          }
          &.danger {
            color: #e60012;
          }
        }
      }
      .action-cell {
        width: 100px;
        border-left: 1px solid #f5f5f5;
        align-items: flex-start;
        gap: 3px;
      }
    }
  }
}
:deep(.table-pagination) {
  flex-shrink: 0;
  margin-top: 15px;
}
</style>
