import "operations/trip.dart";

class BRRState {
  final List<Trip> trips;
  final String? scheduleFileName;
  final DateTime? uploadedAt;
  final String? routeInfo; // e.g., "Metropolitan Line - Uxbridge"
  final String? serviceDate; // "21/09/2025"

  BRRState({
    this.trips = const [],
    this.scheduleFileName,
    this.uploadedAt,
    this.routeInfo,
    this.serviceDate,
  });

  BRRState copyWith({
    List<Trip>? trips,
    String? scheduleFileName,
    DateTime? uploadedAt,
    String? routeInfo,
    String? serviceDate,
  }) {
    return BRRState(
      trips: trips ?? this.trips,
      scheduleFileName: scheduleFileName ?? this.scheduleFileName,
      uploadedAt: uploadedAt ?? this.uploadedAt,
      routeInfo: routeInfo ?? this.routeInfo,
      serviceDate: serviceDate ?? this.serviceDate,
    );
  }

  Map<String, dynamic> toJson() {
    return {
      "trips": trips.map((trip) => trip.toJson()).toList(),
      "scheduleFileName": scheduleFileName,
      "uploadedAt": uploadedAt?.toIso8601String(),
      "routeInfo": routeInfo,
      "serviceDate": serviceDate,
    };
  }

  factory BRRState.fromJson(Map<String, dynamic> json) {
    return BRRState(
      trips: (json["trips"] as List?)
              ?.map((tripJson) => Trip.fromJson(tripJson as Map<String, dynamic>))
              .toList() ??
          [],
      scheduleFileName: json["scheduleFileName"] as String?,
      uploadedAt: json["uploadedAt"] != null
          ? DateTime.parse(json["uploadedAt"] as String)
          : null,
      routeInfo: json["routeInfo"] as String?,
      serviceDate: json["serviceDate"] as String?,
    );
  }
}