import 'package:flutter/material.dart';
import 'package:get_it/get_it.dart';
import 'package:superport/services/equipment_service.dart';
import 'package:superport/data/models/equipment/equipment_history_dto.dart';

class TestHistoryScreen extends StatefulWidget {
  const TestHistoryScreen({Key? key}) : super(key: key);

  @override
  State<TestHistoryScreen> createState() => _TestHistoryScreenState();
}

class _TestHistoryScreenState extends State<TestHistoryScreen> {
  final EquipmentService _equipmentService = GetIt.instance<EquipmentService>();
  final TextEditingController _idController = TextEditingController(text: '1');
  List<EquipmentHistoryDto>? _histories;
  bool _isLoading = false;
  String? _error;

  Future<void> _testAddHistory() async {
    setState(() {
      _isLoading = true;
      _error = null;
    });

    try {
      final equipmentId = int.tryParse(_idController.text) ?? 1;
      
      // 테스트 이력 추가
      await _equipmentService.addEquipmentHistory(
        equipmentId,
        'I', // transaction type
        10,  // quantity
        'Test history added at ${DateTime.now()}', // remarks
      );
      
      // 이력 다시 조회
      await _testGetHistory();
      
    } catch (e) {
      setState(() {
        _error = 'Error adding history: $e';
        _isLoading = false;
      });
    }
  }

  Future<void> _testGetHistory() async {
    setState(() {
      _isLoading = true;
      _error = null;
      _histories = null;
    });

    try {
      final equipmentId = int.tryParse(_idController.text) ?? 1;
      
      print('[TEST] Fetching history for equipment ID: $equipmentId');
      
      final histories = await _equipmentService.getEquipmentHistory(
        equipmentId,
        page: 1,
        perPage: 20,
      );
      
      print('[TEST] Received ${histories.length} history records');
      
      setState(() {
        _histories = histories;
        _isLoading = false;
      });
    } catch (e) {
      print('[TEST ERROR] $e');
      setState(() {
        _error = 'Error: $e';
        _isLoading = false;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Equipment History Test'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              children: [
                Expanded(
                  child: TextField(
                    controller: _idController,
                    decoration: const InputDecoration(
                      labelText: 'Equipment ID',
                      border: OutlineInputBorder(),
                    ),
                    keyboardType: TextInputType.number,
                  ),
                ),
                const SizedBox(width: 8),
                ElevatedButton(
                  onPressed: _isLoading ? null : _testGetHistory,
                  child: const Text('Get History'),
                ),
                const SizedBox(width: 8),
                ElevatedButton(
                  onPressed: _isLoading ? null : _testAddHistory,
                  style: ElevatedButton.styleFrom(
                    backgroundColor: Colors.green,
                  ),
                  child: const Text('Add Test History'),
                ),
              ],
            ),
            const SizedBox(height: 16),
            if (_isLoading)
              const Center(child: CircularProgressIndicator())
            else if (_error != null)
              Card(
                color: Colors.red[50],
                child: Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: Text(
                    _error!,
                    style: const TextStyle(color: Colors.red),
                  ),
                ),
              )
            else if (_histories != null)
              Expanded(
                child: Card(
                  child: Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        Text(
                          'Found ${_histories!.length} history records',
                          style: const TextStyle(fontWeight: FontWeight.bold),
                        ),
                        const Divider(),
                        Expanded(
                          child: _histories!.isEmpty
                              ? const Center(child: Text('No history found'))
                              : ListView.builder(
                                  itemCount: _histories!.length,
                                  itemBuilder: (context, index) {
                                    final history = _histories![index];
                                    return Card(
                                      margin: const EdgeInsets.symmetric(vertical: 4),
                                      child: ListTile(
                                        leading: CircleAvatar(
                                          child: Text(history.transactionType),
                                        ),
                                        title: Text('Quantity: ${history.quantity}'),
                                        subtitle: Column(
                                          crossAxisAlignment: CrossAxisAlignment.start,
                                          children: [
                                            Text('Remarks: ${history.remarks ?? "N/A"}'),
                                            Text('Date: ${history.transactionDate}'),
                                            Text('User: ${history.userName ?? "Unknown"}'),
                                          ],
                                        ),
                                      ),
                                    );
                                  },
                                ),
                        ),
                      ],
                    ),
                  ),
                ),
              ),
          ],
        ),
      ),
    );
  }
}