class DeliveryRecord {
  final int? id;
  final int routeId;
  final int stopId;
  final String date; // YYYY-MM-DD
  final DateTime deliveredAt;

  DeliveryRecord({
    this.id,
    required this.routeId,
    required this.stopId,
    required this.date,
    required this.deliveredAt,
  });

  Map<String, dynamic> toMap() => {
        if (id != null) 'id': id,
        'route_id': routeId,
        'stop_id': stopId,
        'date': date,
        'delivered_at': deliveredAt.toIso8601String(),
      };

  factory DeliveryRecord.fromMap(Map<String, dynamic> map) => DeliveryRecord(
        id: map['id'] as int?,
        routeId: map['route_id'] as int,
        stopId: map['stop_id'] as int,
        date: map['date'] as String,
        deliveredAt: DateTime.parse(map['delivered_at'] as String),
      );
}

class DailyStats {
  final String date;
  final int deliveredCount;
  final int totalCount;

  DailyStats({
    required this.date,
    required this.deliveredCount,
    required this.totalCount,
  });
}