flutter/lib/pages/order/seller_detail.dart

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:loopin/components/my_toast.dart';
import '../../behavior/custom_scroll_behavior.dart';

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

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

class _SellerOrderDetailState extends State<SellerOrderDetail> with SingleTickerProviderStateMixin {
  late String ? _orderId;
  late String ?_writeOffCodeId;
  dynamic orderGoodsInfo;
  bool _isLoading = true; // 添加加载状态

  @override
  void initState() {
    super.initState();
    _orderId = Get.arguments['orderId'] ?? ''; // 从商家订单列表进入此页面，此时带着订单id
    _writeOffCodeId = Get.arguments['writeOffCodeId'] ?? ''; // 从扫码核销进入此页面，此时带着核销码
    if(_orderId != null){
      getOrderDetailByOrderId(_orderId);
    }else if(_writeOffCodeId != null){
      getOrderDetailByWriteOffId(_writeOffCodeId);
    }

  }

  @override
  void dispose() {
    super.dispose();
  }
  // 获取订单详情信息，根据订单id
  void getOrderDetailByOrderId(orderId) async {
    try {
      setState(() {
        _isLoading = true;
      });
      final res = await Http.get('${ShopApi.goodsOrderDetail}/$orderId');
       debugPrint(res['data'].toString(), wrapWidth: 600);
      setState(() {
        orderGoodsInfo = res['data'];
        _isLoading = false;
      });
    } catch (e) {
      setState(() {
        _isLoading = false;
      });
      MyDialog.toast('获取订单详情失败');
    }
  }
  // 获取订单详情信息，根据核销码
  void getOrderDetailByWriteOffId(code) async {
    try {
      setState(() {
        _isLoading = true;
      });
      final res = await Http.get('${ShopApi.getWriteOffDetail}?code=$code');
      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');
    }
  }

  // 确认核销订单
  void _confirmVerifyCode () async {
    late String writeOffCode;
    if(_orderId != null){ // 商家可以直接从订单详情获取核销码，并过滤后进行核销
        var verificationCodesList = orderGoodsInfo['verificationCodes'];
        if (verificationCodesList != null && verificationCodesList.isNotEmpty) {
        // 过滤可用的核销码（status为0）
        List<dynamic> newVerifyList = verificationCodesList.where((item) => item['status'] == 0).toList();
        if (newVerifyList.isNotEmpty) {
          writeOffCode = newVerifyList[0]['code'] ?? '';
        } else {
         return MyToast().tip(
            title: '暂无可用的核销码',
            position: 'center',
            type: 'error',
          );
        }
      } else {
       return MyToast().tip(
          title: '暂无可用的核销码',
          position: 'center',
          type: 'error',
        );
      }
    }else if(_writeOffCodeId != null){
      writeOffCode = _writeOffCodeId?? '';
    }
    try {
      final res = await Http.get('${ShopApi.confirmWriteOff}?code=$writeOffCode');
      debugPrint(res['data'].toString(), wrapWidth: 600);
        MyToast().tip(
          title: '核销成功',
          position: 'center',
          type: 'error',
        );
      } catch (e) {
    }
  }
  // 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: [],
        );

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

      case 2: // 已完成
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [],
        );

      case 3: // 已关闭
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [],
        );

      case 4: // 退款中
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [],
        );

      case 5: // 已退款
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [],
        );

      case 6: // 已取消
        return Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: [],
        );

      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)
                        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),


                                ],
                              ),
                              SizedBox(height: 4),
                            ],
                          ),
                        ),
                      // 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)),
        ],
      ),
    );
  }
}