import 'package:flutter/foundation.dart';
import '../models/instruction_log.dart';
import '../data/interface/IRepository.dart';

class InstructionLogProvider extends ChangeNotifier {
  final Repository<InstructionLog> _repository;
  List<InstructionLog> _logs = [];
  bool _isLoading = false;

  InstructionLogProvider(this._repository);

  List<InstructionLog> get logs => _logs;
  bool get isLoading => _isLoading;

  Future<void> loadLogs() async {
    _isLoading = true;
    notifyListeners();
    
    try {
      _logs = await _repository.load();
    } catch (e) {
      debugPrint('Ошибка загрузки журнала инструктажей: $e');
    } finally {
      _isLoading = false;
      notifyListeners();
    }
  }

  Future<void> addLog(InstructionLog log) async {
    try {
      final newLog = await _repository.add(log);
      _logs.add(newLog);
      notifyListeners();
    } catch (e) {
      debugPrint('Ошибка добавления записи в журнал: $e');
    }
  }

  Future<void> updateLog(InstructionLog log) async {
    try {
      await _repository.update(log);
      final index = _logs.indexWhere((l) => l.id == log.id);
      if (index != -1) {
        _logs[index] = log;
        notifyListeners();
      }
    } catch (e) {
      debugPrint('Ошибка обновления записи в журнале: $e');
    }
  }

  Future<void> deleteLog(String? id) async {
    try {
      await _repository.delete(id);
      _logs.removeWhere((log) => log.id == id);
      notifyListeners();
    } catch (e) {
      debugPrint('Ошибка удаления записи из журнала: $e');
    }
  }

  List<InstructionLog> getLogsByWorker(String workerId) {
    return _logs.where((log) => log.workerId == workerId).toList();
  }

  List<InstructionLog> getLogsByInstruction(String instructionId) {
    return _logs.where((log) => log.instructionId == instructionId).toList();
  }
}