import 'package:flutter/material.dart';
import 'package:wms_app/model/bo/stock_in_data_xugong.dart';
import '../../common/colorCom.dart';
import '../../utils/dialogUtils.dart';

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

  @override
  State<InventoryCheckPage> createState() => _InventoryCheckPageState();
}

class _InventoryCheckPageState extends State<InventoryCheckPage> {
  List<StockInDataXuGong> filteredItems = [];
  final TextEditingController goodsIdController = TextEditingController();
  final TextEditingController orderNoController = TextEditingController();
  final TextEditingController customerNameController = TextEditingController();
  final TextEditingController goodsDescController = TextEditingController();
  final TextEditingController weightController = TextEditingController();
  final TextEditingController sizeController = TextEditingController();

  // Simulate fetching data (this would be an API call in a real-world scenario)
  void _fetchFilteredData() {
    Future.delayed(Duration(seconds: 1), () {
      setState(() {
        // Filtering the data
        filteredItems = [
          StockInDataXuGong(
              goodsId: "001",
              goodsNum: 5,
              orderNo: "order123",
              orderType: "订购",
              customerName: "Customer A",
              goodsDesc: "Material 1 Description",
              weight: 20.0,
              size: "Small",
              spare1: "Spare1A",
              spare2: "Spare2A",
              containerNo: "Container123"),
          StockInDataXuGong(
              goodsId: "002",
              goodsNum: 10,
              orderNo: "order456",
              orderType: "订购",
              customerName: "Customer B",
              goodsDesc: "Material 2 Description",
              weight: 15.5,
              size: "Medium",
              spare1: "Spare1B",
              spare2: "Spare2B",
              containerNo: "Container456"),
        ];
      });
    });
  }

  // Filtering logic (you can enhance this logic as per the requirements)
  void _filterItems() {
    String goodsId = goodsIdController.text;
    String orderNo = orderNoController.text;
    String customerName = customerNameController.text;
    String goodsDesc = goodsDescController.text;
    String weight = weightController.text;
    String size = sizeController.text;

    // Perform the actual filtering (this is just a mock for now)
    _fetchFilteredData();
  }

  void _editGood(StockInDataXuGong item) {
    Navigator.push(
      context,
      MaterialPageRoute(
        builder: (context) => EditGoodPage(item: item, onSave: _updateGood),
      ),
    );
  }

  void _updateGood(StockInDataXuGong updatedItem) {
    setState(() {
      final index =
          filteredItems.indexWhere((e) => e.goodsId == updatedItem.goodsId);
      if (index != -1) {
        filteredItems[index] = updatedItem;
      }
    });
  }

  void _completeInventoryCheck() {
    DialogUtils.showSuccessMessage(context, "盘点完成", "所有物料已完成盘点", btnLabel: "我知道了");
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        iconTheme: const IconThemeData(color: Colors.white),
        leading: IconButton(
          onPressed: () {
            Navigator.of(context).pop();
          },
          icon: const Icon(Icons.arrow_back),
        ),
        centerTitle: true,
        backgroundColor: ColorCommon.colorScheme,
        title: const Text(
          "物料盘点",
          style: TextStyle(color: Colors.white),
        ),
      ),
      body: Padding(
        padding: const EdgeInsets.all(10),
        child: Column(
          children: [
            // Filtering Fields
            _buildEditableField("物料号", goodsIdController),
            _buildEditableField("单据号", orderNoController),
            _buildEditableField("客户名称", customerNameController),
            _buildEditableField("物料描述", goodsDescController),
            _buildEditableField("重量", weightController),
            _buildEditableField("尺寸", sizeController),
            
            // Filter Button
            Padding(
              padding: const EdgeInsets.symmetric(vertical: 10),
              child: ElevatedButton(
                onPressed: _filterItems,
                child: const Text("筛选"),
              ),
            ),

            // Display filtered items
            Expanded(
              child: ListView.builder(
                itemCount: filteredItems.length,
                itemBuilder: (context, index) {
                  final item = filteredItems[index];
                  return Card(
                    margin: const EdgeInsets.symmetric(vertical: 5),
                    child: ListTile(
                      onTap: () => _editGood(item),
                      title: Row(
                        children: [
                          Expanded(child: Text("物料号: ${item.goodsId}")),
                          Expanded(child: Text("数量: ${item.goodsNum}")),
                          Expanded(child: Text("描述: ${item.goodsDesc}")),
                          Expanded(child: Text("重量: ${item.weight} KG")),
                          Expanded(child: Text("尺寸: ${item.size}")),
                        ],
                      ),
                    ),
                  );
                },
              ),
            ),

            // Complete Inventory Check Button
            Padding(
              padding: const EdgeInsets.all(10),
              child: ElevatedButton(
                onPressed: _completeInventoryCheck,
                child: const Text("确认盘点"),
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildEditableField(String title, TextEditingController controller) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 8.0),
      child: TextField(
        controller: controller,
        decoration: InputDecoration(labelText: title),
        keyboardType: TextInputType.text,
      ),
    );
  }
}

class EditGoodPage extends StatefulWidget {
  final StockInDataXuGong item;
  final Function(StockInDataXuGong) onSave;

  const EditGoodPage({super.key, required this.item, required this.onSave});

  @override
  _EditGoodPageState createState() => _EditGoodPageState();
}

class _EditGoodPageState extends State<EditGoodPage> {
  late StockInDataXuGong _editedItem;

  @override
  void initState() {
    super.initState();
    _editedItem = widget.item;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("编辑物料"),
        backgroundColor: ColorCommon.colorScheme,
      ),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(10),
        child: Column(
          children: [
            _buildEditableField("物料号", _editedItem.goodsId,
                (value) => _editedItem.goodsId = value),
            _buildEditableField("数量", _editedItem.goodsNum.toString(),
                (value) => _editedItem.goodsNum = double.tryParse(value) ?? 0),
            _buildEditableField("单据号", _editedItem.orderNo,
                (value) => _editedItem.orderNo = value),
            _buildEditableField("单据类型", _editedItem.orderType,
                (value) => _editedItem.orderType = value),
            _buildEditableField("客户名称", _editedItem.customerName,
                (value) => _editedItem.customerName = value),
            _buildEditableField("描述", _editedItem.goodsDesc,
                (value) => _editedItem.goodsDesc = value),
            _buildEditableField("重量", _editedItem.weight.toString(),
                (value) => _editedItem.weight = double.tryParse(value) ?? 0.0),
            _buildEditableField(
                "尺寸", _editedItem.size, (value) => _editedItem.size = value),
            ElevatedButton(
              onPressed: () {
                widget.onSave(_editedItem);
                Navigator.pop(context);
              },
              child: const Text("保存修改"),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildEditableField(
      String title, String initialValue, Function(String) onChanged) {
    TextEditingController controller =
        TextEditingController(text: initialValue);
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 8.0),
      child: TextField(
        controller: controller,
        decoration: InputDecoration(labelText: title),
        onChanged: onChanged,
        keyboardType: TextInputType.text,
      ),
    );
  }
}