import 'package:flutter/foundation.dart';

import '../models/closed_tab.dart';
import '../services/bar_tab_service.dart';

class HistoryViewModel extends ChangeNotifier {
  final BarTabService barTabService;

  HistoryViewModel({
    required this.barTabService,
  });

  List<ClosedTab> _closedTabs = [];
  bool _isLoading = false;
  bool _hasLoaded = false;
  String? _errorMessage;
  String _searchQuery = '';

  List<ClosedTab> get closedTabs {
    if (_searchQuery.isEmpty) return _closedTabs;

    return _closedTabs
        .where((tab) =>
        tab.customerName.toLowerCase().contains(_searchQuery.toLowerCase()))
        .toList();
  }

  bool get isLoading => _isLoading;

  bool get hasLoaded => _hasLoaded;

  String? get errorMessage => _errorMessage;

  Future<void> ensureLoaded() async {
    if (_hasLoaded || _isLoading) return;

    await load();
  }

  Future<void> load() async {
    if (_isLoading) return;

    _isLoading = true;
    _errorMessage = null;
    notifyListeners();

    try {
      _closedTabs = await barTabService.getClosedTabs();
    } catch (_) {
      _errorMessage = 'Could not load tab history.';
    } finally {
      _hasLoaded = true;
      _isLoading = false;
      notifyListeners();
    }
  }

  void search(String query) {
    _searchQuery = query;
    notifyListeners();
  }
}