import 'package:intl/intl.dart';

import 'closed_tab_item.dart';

class ClosedTab {
  final String id;
  final String originalTabId;
  final String customerName;
  final DateTime closedAt;
  final String paymentMethod;
  final List<ClosedTabItem> items;

  ClosedTab({
    required this.id,
    required this.originalTabId,
    required this.customerName,
    required this.closedAt,
    required this.paymentMethod,
    required this.items,
  });

  int get itemCount => items.fold(0, (sum, item) => sum + item.quantity);

  int get totalInCents =>
      items.fold(0, (sum, item) => sum + item.quantity * item.unitPriceInCents);

  String get formattedTotal =>
      NumberFormat.simpleCurrency().format(totalInCents / 100);

  String get formattedPaymentMethod {
    return switch (paymentMethod) {
      'cash' => 'Cash',
      'payconiq' => 'Payconiq',
      _ => 'Cash',
    };
  }

  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
      other is ClosedTab &&
          id == other.id &&
          originalTabId == other.originalTabId &&
          customerName == other.customerName &&
          closedAt == other.closedAt &&
          paymentMethod == other.paymentMethod &&
          _listEquals(items, other.items);

  @override
  int get hashCode => Object.hash(
        id,
        originalTabId,
        customerName,
        closedAt,
        paymentMethod,
        Object.hashAll(items),
      );
}

bool _listEquals<T>(List<T>? a, List<T>? b) {
  if (identical(a, b)) return true;
  if (a == null || b == null) return a == b;
  if (a.length != b.length) return false;
  for (int i = 0; i < a.length; i++) {
    if (a[i] != b[i]) return false;
  }
  return true;
}