library;
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:get/get.dart';
import 'package:loopin/service/http.dart';
import 'package:loopin/api/shop_api.dart';
import 'package:shirne_dialog/shirne_dialog.dart';
import 'package:timer_count_down/timer_count_down.dart';
import 'package:loopin/utils/wxsdk.dart';
import '../../behavior/custom_scroll_behavior.dart';
import '../../utils/lifecycle_handler.dart';

class SellerOrderDetail extends StatefulWidget {
  const SellerOrderDetail({super.key});

  @override
  State<SellerOrderDetail> createState() => _SellerOrderDetailState();
}

class _SellerOrderDetailState extends State<SellerOrderDetail> with SingleTickerProviderStateMixin {
  late String _orderId;
  dynamic orderGoodsInfo;
  int _initialSeconds = 30 * 60; // 存储初始秒数
  bool _countdownFinished = false; // 新增标志位，用于跟踪倒计时是否结束
  bool _isLoading = true; // 添加加载状态

  @override
  void initState() {
    super.initState();
    _orderId = Get.arguments['orderId'] ?? '';
    getOrderDetail(orderId: _orderId);
    LifecycleHandler.onAppResumed = _onAppResumed;
  }

  @override
  void dispose() {
    LifecycleHandler.onAppResumed = null;
    super.dispose();
  }

  void _onAppResumed() {
    print('App回到前台，刷新订单状态,订单Id${_orderId}');
    getOrderDetail(orderId: _orderId); // 刷新订单详情数据
    _showPaymentResultDialog(); // 展示支付结果弹框
  }

  // 获取订单状态
  void getOrderRealStatus({required String orderId}) async {
    try {
      final res = await Http.get('${ShopApi.goodsOrderStatus}/$orderId');
      Get.toNamed('/myOrder');
    } catch (e) {
      print('报错-------------->${e}');
    }
  }

  // 获取订单详情信息，包含商品参数
  void getOrderDetail({required String orderId}) async {
    try {
      setState(() {
        _isLoading = true;
      });
      final res = await Http.get('${ShopApi.goodsOrderDetail}/$orderId');
      print('订单详情-------------->${res['data']}');
      setState(() {
        orderGoodsInfo = res['data'];
        _isLoading = false;
      });
    } catch (e) {
      setState(() {
        _isLoading = false;
      });
      MyDialog.toast('获取订单详情失败');
    }
  }

  // 取消订单
  void _cancelOrder() async {
    try {
      final res = await Http.post('${ShopApi.cancelGoodsOrder}/$_orderId');
      getOrderDetail(orderId: _orderId); // 刷新订单详情数据
    } catch (e) {
      MyDialog.toast('取消订单失败');
    }
  }

  // 显示支付结果弹框
  void _showPaymentResultDialog() {
    showDialog(
      context: context,
      barrierDismissible: false,
      barrierColor: Colors.black54,
      builder: (BuildContext context) {
        return Dialog(
          backgroundColor: Colors.white,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(16.0),
          ),
          child: Padding(
            padding: const EdgeInsets.all(20.0),
            child: Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                // 图标
                Container(
                  width: 60,
                  height: 60,
                  decoration: BoxDecoration(
                    color: Color(0xFFFFF8E6),
                    shape: BoxShape.circle,
                  ),
                  child: Icon(
                    Icons.payment,
                    size: 32,
                    color: Color(0xFFFFA500),
                  ),
                ),
                SizedBox(height: 16),

                // 标题
                Text(
                  '支付确认',
                  style: TextStyle(
                    fontSize: 18,
                    fontWeight: FontWeight.bold,
                    color: Colors.black87,
                  ),
                ),
                SizedBox(height: 8),

                // 描述
                Text(
                  '请确认您的支付状态',
                  style: TextStyle(
                    fontSize: 14,
                    color: Colors.grey[600],
                  ),
                  textAlign: TextAlign.center,
                ),
                SizedBox(height: 24),

                // 按钮区域
                Row(
                  children: [
                    // 支付遇到问题按钮
                    Expanded(
                      child: OutlinedButton(
                        onPressed: () {
                          Navigator.of(context).pop();
                          getOrderRealStatus(orderId: _orderId); // 主动再次拉取订单状态
                        },
                        style: OutlinedButton.styleFrom(
                          backgroundColor: Colors.white,
                          foregroundColor: Colors.grey[700],
                          side: BorderSide(color: Colors.grey[300]!),
                          padding: EdgeInsets.symmetric(vertical: 12),
                          shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(8),
                          ),
                        ),
                        child: Text('支付遇到问题'),
                      ),
                    ),
                    SizedBox(width: 12),

                    // 支付完成按钮
                    Expanded(
                      child: ElevatedButton(
                        onPressed: () {
                          Navigator.of(context).pop();
                          getOrderRealStatus(orderId: _orderId); // 同时主动拉取订单状态
                        },
                        style: ElevatedButton.styleFrom(
                          backgroundColor: Color(0xFFFF5000),
                          foregroundColor: Colors.white,
                          padding: EdgeInsets.symmetric(vertical: 12),
                          shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.circular(8),
                          ),
                        ),
                        child: Text('支付完成'),
                      ),
                    ),
                  ],
                ),
              ],
            ),
          ),
        );
      },
    );
  }

  // 获取订单状态文本
  String getOrderStatusText(int status) {
    switch (status) {
      case 0:
        return '待付款';
      case 1:
        return '待核销';
      case 2:
        return '已完成';
      case 3:
        return '已关闭';
      case 4:
        return '退款中';
      case 5:
        return '已退款';
      case 6:
        return '已取消';
      default:
        return '未知状态';
    }
  }

  // 获取订单状态颜色
  Color getOrderStatusColor(int status) {
    switch (status) {
      case 0:
        return Colors.grey;
      case 1:
        return Colors.blue;
      case 2:
        return Colors.green;
      case 3:
        return Colors.red;
      case 4:
        return Colors.orange;
      case 5:
        return Colors.grey;
      case 6:
        return Colors.grey;
      default:
        return Colors.black;
    }
  }

  // 获取商品信息列表
  List<dynamic> getProductInfoList() {
    // 优先使用 items 字段
    if (orderGoodsInfo?['items'] != null && orderGoodsInfo!['items'] is List) {
      return orderGoodsInfo!['items'];
    }
    // 如果 items 为空，使用 productInfo 字段
    if (orderGoodsInfo?['productInfo'] != null && orderGoodsInfo!['productInfo'] is List) {
      return orderGoodsInfo!['productInfo'];
    }
    // 如果都为空，返回空列表
    return [];
  }

  // 获取第一个商品信息
  dynamic getFirstProductInfo() {
    final productList = getProductInfoList();
    return productList.isNotEmpty ? productList[0] : null;
  }

  // 构建商品图片
  Widget _buildProductImage(dynamic productInfo) {
    final picUrl = productInfo?['pic'];

    if (picUrl == null || picUrl.isEmpty) {
      return Container(
        width: 80.0,
        height: 80.0,
        decoration: BoxDecoration(
          color: Colors.grey[100],
          borderRadius: BorderRadius.circular(8.0),
        ),
        child: Icon(
          Icons.shopping_bag_outlined,
          size: 40.0,
          color: Colors.grey[400],
        ),
      );
    }

    return Image.network(
      picUrl,
      width: 80.0,
      height: 80.0,
      fit: BoxFit.cover,
      errorBuilder: (context, error, stackTrace) {
        return Container(
          width: 80.0,
          height: 80.0,
          decoration: BoxDecoration(
            color: Colors.grey[100],
            borderRadius: BorderRadius.circular(8.0),
          ),
          child: Icon(
            Icons.shopping_bag_outlined,
            size: 40.0,
            color: Colors.grey[400],
          ),
        );
      },
      loadingBuilder: (context, child, loadingProgress) {
        if (loadingProgress == null) return child;
        return Container(
          width: 80.0,
          height: 80.0,
          decoration: BoxDecoration(
            color: Colors.grey[100],
            borderRadius: BorderRadius.circular(8.0),
          ),
          child: Center(
            child: CircularProgressIndicator(
              value: loadingProgress.expectedTotalBytes != null
                  ? loadingProgress.cumulativeBytesLoaded / loadingProgress.expectedTotalBytes!
                  : null,
            ),
          ),
        );
      },
    );
  }

  // 构建商品列表
  Widget _buildProductList() {
    final productList = getProductInfoList();

    if (productList.isEmpty) {
      return Padding(
        padding: const EdgeInsets.symmetric(vertical: 16.0),
        child: Text(
          '暂无商品信息',
          style: TextStyle(color: Colors.grey, fontSize: 14),
        ),
      );
    }

    return Column(
      children: productList.map((product) {
        return Padding(
          padding: const EdgeInsets.only(bottom: 12.0),
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              _buildProductImage(product),
              SizedBox(width: 10.0),
              Expanded(
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text(
                      product?['productName']?.toString() ?? '未知商品',
                      maxLines: 2,
                      overflow: TextOverflow.ellipsis,
                      style: TextStyle(fontSize: 14),
                    ),
                    SizedBox(height: 8),
                    Row(
                      children: [
                        Text(
                          '¥${product?['salePrice']?.toString() ?? '0.00'}',
                          style: TextStyle(color: Colors.red, fontWeight: FontWeight.bold),
                        ),
                        Spacer(),
                        Text(
                          'x${product?['buyNum']?.toString() ?? '1'}',
                          style: TextStyle(color: Colors.grey),
                        ),
                      ],
                    ),
                  ],
                ),
              )
            ],
          ),
        );
      }).toList(),
    );
  }

  // 构建底部按钮
  Widget buildBottomButtons() {
    if (orderGoodsInfo == null) return SizedBox.shrink();

    int orderStatus = orderGoodsInfo?['status'] ?? 0;

    switch (orderStatus) {
      case 0: // 待付款
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [
            ElevatedButton(
              onPressed: () {
                // 取消订单逻辑
                _cancelOrder();
              },
              style: ButtonStyle(
                backgroundColor: WidgetStateProperty.all(Colors.white),
                foregroundColor: WidgetStateProperty.all(Colors.black87),
                side: WidgetStateProperty.all(BorderSide(color: Colors.grey[300]!)),
              ),
              child: const Text('取消订单'),
            ),
            const SizedBox(width: 10.0),
            ElevatedButton(
              onPressed: () {
                // 打开微信小程序的某个页面地址，如pages/index/index
                Wxsdk.openMiniApp(orderId: _orderId);
              },
              style: ButtonStyle(
                backgroundColor: WidgetStateProperty.all(Color(0xff07c160)),
                foregroundColor: WidgetStateProperty.all(Colors.white),
              ),
              child: const Text('去支付'),
            ),
          ],
        );

      case 1: // 待核销
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [
            const SizedBox(width: 10.0),
            ElevatedButton(
              onPressed: () {},
              style: ButtonStyle(
                backgroundColor: WidgetStateProperty.all(Color(0xFFFF5000)),
                foregroundColor: WidgetStateProperty.all(Colors.white),
              ),
              child: const Text('待核销'),
            ),
          ],
        );

      case 2: // 已完成
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [
            const SizedBox(width: 10.0),
            ElevatedButton(
              onPressed: () {},
              style: ButtonStyle(
                backgroundColor: WidgetStateProperty.all(Colors.green),
                foregroundColor: WidgetStateProperty.all(Colors.white),
              ),
              child: const Text('已完成'),
            ),
          ],
        );

      case 3: // 已关闭
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [
            const SizedBox(width: 10.0),
            ElevatedButton(
              onPressed: () {},
              style: ButtonStyle(
                backgroundColor: WidgetStateProperty.all(Colors.grey),
                foregroundColor: WidgetStateProperty.all(Colors.white),
              ),
              child: const Text('已关闭'),
            ),
          ],
        );

      case 4: // 退款中
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [
            const SizedBox(width: 10.0),
            ElevatedButton(
              onPressed: () {},
              style: ButtonStyle(
                backgroundColor: WidgetStateProperty.all(Colors.orange),
                foregroundColor: WidgetStateProperty.all(Colors.white),
              ),
              child: const Text('退款中'),
            ),
          ],
        );

      case 5: // 已退款
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [
            const SizedBox(width: 10.0),
            ElevatedButton(
              onPressed: () {},
              style: ButtonStyle(
                backgroundColor: WidgetStateProperty.all(Colors.grey),
                foregroundColor: WidgetStateProperty.all(Colors.white),
              ),
              child: const Text('已退款'),
            ),
          ],
        );

      case 6: // 已取消
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [
            const SizedBox(width: 10.0),
            ElevatedButton(
              onPressed: () {},
              style: ButtonStyle(
                backgroundColor: WidgetStateProperty.all(Colors.grey),
                foregroundColor: WidgetStateProperty.all(Colors.white),
              ),
              child: const Text('已取消'),
            ),
          ],
        );

      default:
        return SizedBox.shrink();
    }
  }

  Widget emptyTip() {
    return Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Image.asset(
          'assets/images/empty.png',
          width: 100.0,
        ),
        SizedBox(height: 16),
        Text(
          '还没有订单信息~',
          style: TextStyle(color: Colors.grey, fontSize: 12.0),
        )
      ],
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.grey[50],
      appBar: AppBar(
        backgroundColor: Color(0xFFFF5000),
        foregroundColor: Colors.white,
        title: Text('订单详情'),
        titleSpacing: 1.0,
      ),
      body: _isLoading
          ? Center(child: CircularProgressIndicator())
          : orderGoodsInfo == null
              ? emptyTip()
              : ScrollConfiguration(
                  behavior: CustomScrollBehavior().copyWith(scrollbars: false),
                  child: ListView(
                    physics: BouncingScrollPhysics(),
                    padding: EdgeInsets.all(10.0),
                    children: [
                      if (orderGoodsInfo?['status'] == 0) // 修正：应该是 status 而不是 orderStatus
                        Container(
                          padding: EdgeInsets.all(12.0),
                          margin: EdgeInsets.only(bottom: 10.0),
                          decoration: BoxDecoration(
                            color: Colors.white,
                            borderRadius: BorderRadius.circular(15.0),
                            boxShadow: [
                              BoxShadow(
                                color: Colors.black.withAlpha(10),
                                offset: Offset(0.0, 1.0),
                                blurRadius: 1.0,
                                spreadRadius: 0.0,
                              ),
                            ],
                          ),
                          child: Column(
                            children: [
                              Row(
                                mainAxisAlignment: MainAxisAlignment.center,
                                children: [
                                  Icon(
                                    Icons.info,
                                    size: 16.0,
                                    color: Colors.orange,
                                  ),
                                  SizedBox(width: 4),
                                  Text(
                                    getOrderStatusText(orderGoodsInfo?['status'] ?? 0),
                                    style: TextStyle(color: Colors.orange),
                                  ),
                                  SizedBox(width: 4),
                                  Text(
                                    _countdownFinished ? '倒计时已结束' : '剩余 ',
                                    style: TextStyle(color: Colors.grey),
                                  ),
                                  if (!_countdownFinished)
                                    Countdown(
                                      seconds: _initialSeconds,
                                      build: (_, double time) {
                                        int m = ((time % 3600) ~/ 60).toInt();
                                        int s = (time % 60).toInt();
                                        String formatted = "${m.toString().padLeft(2, '0')}:${s.toString().padLeft(2, '0')}";

                                        return Text(
                                          formatted,
                                          style: TextStyle(color: Colors.red, fontWeight: FontWeight.bold),
                                        );
                                      },
                                      interval: Duration(seconds: 1),
                                      onFinished: () {
                                        print("倒计时结束");
                                        _cancelOrder();
                                        setState(() {
                                          _countdownFinished = true;
                                        });
                                      },
                                    ),
                                ],
                              ),
                              SizedBox(height: 4),
                              Text(
                                _countdownFinished
                                    ? '订单已自动取消'
                                    : '超过30分钟未支付，订单将自动取消',
                                style: TextStyle(color: Colors.grey, fontSize: 12.0),
                              ),
                            ],
                          ),
                        ),
                      // 商品信息
                      Container(
                        margin: EdgeInsets.only(bottom: 10.0),
                        padding: EdgeInsets.all(10.0),
                        decoration: BoxDecoration(
                          color: Colors.white,
                          borderRadius: BorderRadius.circular(15.0),
                          boxShadow: [
                            BoxShadow(
                              color: Colors.black.withAlpha(10),
                              offset: Offset(0.0, 1.0),
                              blurRadius: 1.0,
                              spreadRadius: 0.0,
                            ),
                          ],
                        ),
                        child: Column(
                          children: [
                            Row(
                              children: [
                                Spacer(),
                                Text(
                                  getOrderStatusText(orderGoodsInfo?['status'] ?? 0),
                                  style: TextStyle(
                                    color: getOrderStatusColor(orderGoodsInfo?['status'] ?? 0),
                                    fontWeight: FontWeight.bold,
                                  ),
                                )
                              ],
                            ),
                            SizedBox(height: 10),
                            _buildProductList(),
                          ],
                        ),
                      ),
                      // 订单信息
                      Container(
                        margin: EdgeInsets.only(bottom: 10.0),
                        padding: EdgeInsets.all(10.0),
                        decoration: BoxDecoration(
                          color: Colors.white,
                          borderRadius: BorderRadius.circular(15.0),
                          boxShadow: [
                            BoxShadow(
                              color: Colors.black.withAlpha(10),
                              offset: Offset(0.0, 1.0),
                              blurRadius: 1.0,
                              spreadRadius: 0.0,
                            ),
                          ],
                        ),
                        child: Column(
                          children: [
                            Row(
                              children: [
                                Text(
                                  '订单信息',
                                  style: TextStyle(fontSize: 15.0, fontWeight: FontWeight.bold),
                                ),
                                Spacer(),
                                InkWell(
                                  child: Icon(
                                    Icons.copy,
                                    color: Colors.grey,
                                    size: 18.0,
                                  ),
                                  onTap: () async {
                                    await Clipboard.setData(ClipboardData(text: _orderId));
                                    MyDialog.toast('订单已复制到剪切板', icon: Icon(Icons.check_circle));
                                  },
                                )
                              ],
                            ),
                            SizedBox(height: 10),
                            Column(
                              children: [
                                _buildOrderInfoRow('订单号', orderGoodsInfo?['orderId']?.toString() ?? ''),
                                _buildOrderInfoRow('下单时间', orderGoodsInfo?['createTime']?.toString() ?? ''),
                                _buildOrderInfoRow('购买数量', _calculateTotalQuantity().toString()),
                                _buildOrderInfoRow('订单金额', '¥${orderGoodsInfo?['totalAmount']?.toString() ?? '0.00'}'),
                                _buildOrderInfoRow('实付金额', '¥${orderGoodsInfo?['payAmount']?.toString() ?? '0.00'}'),
                              ],
                            )
                          ],
                        ),
                      ),
                    ],
                  ),
                ),
      // 底部固定按钮
      bottomNavigationBar: orderGoodsInfo == null
          ? null
          : SafeArea(
              minimum: const EdgeInsets.all(10),
              child: Container(
                height: 60.0,
                color: Colors.white,
                padding: const EdgeInsets.symmetric(horizontal: 10.0, vertical: 5.0),
                child: buildBottomButtons(),
              ),
            ),
    );
  }

  // 计算总购买数量
  int _calculateTotalQuantity() {
    final productList = getProductInfoList();
    int total = 0;
    for (var product in productList) {
      total += (product?['buyNum'] as int? ?? 0);
    }
    return total;
  }

  Widget _buildOrderInfoRow(String label, String value) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 6.0),
      child: Row(
        children: [
          Text(
            label,
            style: TextStyle(color: Colors.grey, fontSize: 13),
          ),
          Spacer(),
          Text(value, style: TextStyle(fontSize: 13)),
        ],
      ),
    );
  }
}