<template>
  <UserLayout>
    <div class="order-page">
      <el-card class="order-card">
        <template #header>
          <div class="order-header">
            <span>我的订单</span>
          </div>
        </template>

        <div v-if="orderList.length === 0" class="empty-orders">
          <el-empty description="暂无订单" />
        </div>

        <div v-else>
          <!-- 订单列表 -->
          <div class="order-list">
            <el-table :data="orderList" style="width: 100%" row-key="id">
              <el-table-column prop="orderNo" label="订单号" min-width="200" />
              <el-table-column
                prop="createTime"
                label="下单时间"
                min-width="180"
              >
                <template #default="scope">
                  {{ formatDate(scope.row.createTime) }}
                </template>
              </el-table-column>
              <el-table-column
                prop="productCount"
                label="商品数量"
                min-width="100"
              />
              <el-table-column
                prop="totalAmount"
                label="订单总额"
                min-width="120"
              >
                <template #default="scope">
                  ¥{{ scope.row.totalAmount.toFixed(2) }}
                </template>
              </el-table-column>
              <el-table-column
                prop="statusText"
                label="订单状态"
                min-width="100"
              />
              <el-table-column label="操作" min-width="120">
                <template #default="scope">
                  <el-button
                    type="primary"
                    link
                    @click="viewOrderDetail(scope.row)"
                  >
                    查看详情
                  </el-button>
                </template>
              </el-table-column>
            </el-table>
          </div>

          <!-- 分页 -->
          <div class="pagination-container">
            <el-pagination
              v-model:current-page="currentPage"
              v-model:page-size="pageSize"
              :page-sizes="[5, 10, 20, 50]"
              :total="total"
              layout="total, sizes, prev, pager, next, jumper"
              @size-change="handleSizeChange"
              @current-change="handleCurrentChange"
            />
          </div>
        </div>
      </el-card>
    </div>

    <!-- 订单详情模态框 -->
    <el-dialog
      v-model="dialogVisible"
      title="订单详情"
      width="900px"
      class="order-detail-dialog"
    >
      <div v-if="currentOrder" class="order-detail">
        <h3 class="section-title">订单信息</h3>
        <el-descriptions :column="2" border>
          <el-descriptions-item label="订单号">
            {{ currentOrder.orderNo }}
          </el-descriptions-item>
          <el-descriptions-item label="下单时间">
            {{ formatDateTime(currentOrder.createTime) }}
          </el-descriptions-item>
          <el-descriptions-item label="订单状态">
            {{ getOrderStatusText(currentOrder.status) }}
          </el-descriptions-item>
          <el-descriptions-item label="支付方式">
            {{ getPayTypeText(currentOrder.payType) }}
          </el-descriptions-item>
          <el-descriptions-item label="订单总额">
            ¥{{ currentOrder.totalAmount.toFixed(2) }}
          </el-descriptions-item>
          <el-descriptions-item label="实付金额">
            ¥{{ currentOrder.payAmount.toFixed(2) }}
          </el-descriptions-item>
        </el-descriptions>

        <h3 class="section-title">收货信息</h3>
        <el-descriptions :column="1" border>
          <el-descriptions-item label="收货人">
            {{ currentOrder.receiverName }}
          </el-descriptions-item>
          <el-descriptions-item label="联系电话">
            {{ currentOrder.receiverPhone }}
          </el-descriptions-item>
          <el-descriptions-item label="收货地址">
            {{ currentOrder.receiverAddress }}
          </el-descriptions-item>
        </el-descriptions>

        <h3 class="section-title">商品信息</h3>
        <div class="order-items">
          <el-table :data="currentOrder.orderItems" style="width: 100%">
            <el-table-column prop="productImage" label="商品" width="300">
              <template #default="scope">
                <div class="product-info">
                  <el-image
                    :src="scope.row.productImage"
                    class="product-image"
                    fit="cover"
                  />
                  <div class="product-details">
                    <div class="product-name">
                      {{ scope.row.productName }}
                    </div>
                    <div class="product-sku">{{ scope.row.skuName }}</div>
                  </div>
                </div>
              </template>
            </el-table-column>

            <el-table-column prop="price" label="单价" width="168">
              <template #default="scope">
                ¥{{ scope.row.price.toFixed(2) }}
              </template>
            </el-table-column>

            <el-table-column prop="quantity" label="数量" width="200" />

            <el-table-column prop="totalPrice" label="小计" width="200">
              <template #default="scope">
                ¥{{ scope.row.totalPrice.toFixed(2) }}
              </template>
            </el-table-column>
          </el-table>
        </div>
      </div>

      <template #footer>
        <span class="dialog-footer">
          <el-button @click="dialogVisible = false">关闭</el-button>
        </span>
      </template>
    </el-dialog>
  </UserLayout>
</template>
<script setup lang="ts">
import UserLayout from "@/layouts/UserLayout.vue";
import { ref, onMounted } from "vue";
import { useUserStore } from "@/stores/UserStore";
import { ElMessage } from "element-plus";
import { getOrderList, getOrderDetail } from "@/apis/order";
import type { OrderListItem, OrderDetail } from "@/types/order";

const userStore = useUserStore();

// 订单列表相关
const orderList = ref<OrderListItem[]>([]);
const currentPage = ref(1);
const pageSize = ref(10);
const total = ref(0);

// 订单详情相关
const dialogVisible = ref(false);
const currentOrder = ref<OrderDetail | null>(null);

// 获取订单列表
const loadOrderList = async () => {
  if (!userStore.userInfo) {
    ElMessage.warning("请先登录");
    return;
  }

  try {
    const res = await getOrderList({
      page: currentPage.value,
      size: pageSize.value,
      userId: userStore.userInfo.id,
    });

    if (res.code === 200) {
      orderList.value = res.data.list;
      total.value = res.data.total;
    } else {
      ElMessage.error(res.message || "获取订单列表失败");
    }
  } catch (err) {
    console.error(err);
    ElMessage.error("获取订单列表失败");
  }
};

// 处理页面大小变化
const handleSizeChange = (val: number) => {
  pageSize.value = val;
  currentPage.value = 1;
  loadOrderList();
};

// 处理页码变化
const handleCurrentChange = (val: number) => {
  currentPage.value = val;
  loadOrderList();
};

// 查看订单详情
const viewOrderDetail = async (order: OrderListItem) => {
  if (!userStore.userInfo) {
    ElMessage.warning("请先登录");
    return;
  }

  try {
    const res = await getOrderDetail(order.id, userStore.userInfo.id);
    if (res.code === 200) {
      currentOrder.value = res.data;
      dialogVisible.value = true;
    } else {
      ElMessage.error(res.message || "获取订单详情失败");
    }
  } catch (err) {
    console.error(err);
    ElMessage.error("获取订单详情失败");
  }
};

// 格式化日期 (用于列表中的日期)
const formatDate = (date: string | Date | number[]) => {
  // 检查是否为空值
  if (!date) return "-";

  try {
    let d: Date;

    // 如果是数组格式 [year, month, day, hour, minute, second]
    if (Array.isArray(date)) {
      if (date.length < 6) return "-";
      // 注意：JavaScript 中月份是从0开始的，所以需要减1
      d = new Date(date[0], date[1] - 1, date[2], date[3], date[4], date[5]);
    }
    // 如果是字符串并且是 ISO 8601 格式 (如: 2025-12-21T00:04:18)
    else if (typeof date === "string" && date.includes("T")) {
      d = new Date(date);
    }
    // 其他格式处理
    else {
      d = new Date(date);
    }

    // 检查是否为有效日期
    if (isNaN(d.getTime())) return "-";

    const year = d.getFullYear();
    const month = String(d.getMonth() + 1).padStart(2, "0");
    const day = String(d.getDate()).padStart(2, "0");
    const hours = String(d.getHours()).padStart(2, "0");
    const minutes = String(d.getMinutes()).padStart(2, "0");
    return `${year}-${month}-${day} ${hours}:${minutes}`;
  } catch (e) {
    console.error("日期格式化错误:", e, "输入值:", date);
    return "-";
  }
};

// 格式化日期时间 (用于详情中的日期时间)
const formatDateTime = (date: string | Date | number[]) => {
  // 检查是否为空值
  if (!date) return "-";

  try {
    let d: Date;

    // 如果是数组格式 [year, month, day, hour, minute, second]
    if (Array.isArray(date)) {
      if (date.length < 6) return "-";
      // 注意：JavaScript 中月份是从0开始的，所以需要减1
      d = new Date(date[0], date[1] - 1, date[2], date[3], date[4], date[5]);
    }
    // 如果是字符串并且是 ISO 8601 格式 (如: 2025-12-21T00:04:18)
    else if (typeof date === "string" && date.includes("T")) {
      d = new Date(date);
    }
    // 其他格式处理
    else {
      d = new Date(date);
    }

    // 检查是否为有效日期
    if (isNaN(d.getTime())) return "-";

    const year = d.getFullYear();
    const month = String(d.getMonth() + 1).padStart(2, "0");
    const day = String(d.getDate()).padStart(2, "0");
    const hours = String(d.getHours()).padStart(2, "0");
    const minutes = String(d.getMinutes()).padStart(2, "0");
    const seconds = String(d.getSeconds()).padStart(2, "0");
    return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
  } catch (e) {
    console.error("日期时间格式化错误:", e, "输入值:", date);
    return "-";
  }
};

// 获取订单状态文本
const getOrderStatusText = (status: number) => {
  const statusMap: Record<number, string> = {
    0: "待付款",
    1: "待发货",
    2: "待收货",
    3: "已完成",
    4: "已取消",
  };
  return statusMap[status] || "未知状态";
};

// 获取支付方式文本
const getPayTypeText = (payType: number) => {
  const payTypeMap: Record<number, string> = {
    0: "未支付",
    1: "微信",
    2: "支付宝",
  };
  return payTypeMap[payType] || "未知";
};

onMounted(() => {
  loadOrderList();
});
</script>

<style scoped>
.order-page {
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.order-header {
  font-size: 18px;
  font-weight: bold;
}

.empty-orders {
  text-align: center;
  padding: 40px 0;
}

.pagination-container {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.section-title {
  margin: 20px 0 10px 0;
  font-size: 16px;
  font-weight: bold;
}

.dialog-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 20px;
}

/* 商品信息样式仿照购物车 */
.product-info {
  display: flex;
  align-items: center;
  gap: 15px;
}

.product-image {
  width: 80px;
  height: 80px;
  border-radius: 4px;
}

.product-details {
  flex: 1;
}

.product-name {
  font-weight: bold;
  margin-bottom: 5px;
}

.product-sku {
  color: #999;
  font-size: 12px;
}

.order-items {
  margin-top: 20px;
}
</style>
