import 'package:uuid/uuid.dart';

/// Periodikus járműpozíció-minta — a navigációs oldal a beállított
/// időközönként ide ment egy sort, amíg a rögzítés fut. Ebből (és a
/// SourcePoint terv-pozíciókból) számítható utólag, mely forráspontok
/// mellett járt ténylegesen a jármű.
class VehiclePositionLog {
  final int? id;
  final String uuid;
  final int projectId;

  final String vehicleId; // pl. "V1" / "V2" / "V3"

  final double eovY;
  final double eovX;
  final double lat;
  final double lon;
  final double? altitude;
  final double? speedKmh;
  final double? heading;
  final int? fixQuality;
  final double? accuracy;

  final DateTime timestamp;
  final String? deviceId;
  final String? appInstanceId;

  VehiclePositionLog({
    this.id,
    String? uuid,
    required this.projectId,
    required this.vehicleId,
    required this.eovY,
    required this.eovX,
    required this.lat,
    required this.lon,
    this.altitude,
    this.speedKmh,
    this.heading,
    this.fixQuality,
    this.accuracy,
    DateTime? timestamp,
    this.deviceId,
    this.appInstanceId,
  })  : uuid = uuid ?? const Uuid().v4(),
        timestamp = timestamp ?? DateTime.now();

  Map<String, dynamic> toMap() => {
        if (id != null) 'id': id,
        'uuid': uuid,
        'project_id': projectId,
        'vehicle_id': vehicleId,
        'eov_y': eovY,
        'eov_x': eovX,
        'lat': lat,
        'lon': lon,
        'altitude': altitude,
        'speed_kmh': speedKmh,
        'heading': heading,
        'fix_quality': fixQuality,
        'accuracy': accuracy,
        'timestamp': timestamp.toIso8601String(),
        'device_id': deviceId,
        'app_instance_id': appInstanceId,
      };

  factory VehiclePositionLog.fromMap(Map<String, dynamic> m) =>
      VehiclePositionLog(
        id: m['id'] as int?,
        uuid: m['uuid'] as String,
        projectId: m['project_id'] as int,
        vehicleId: (m['vehicle_id'] as String?) ?? '',
        eovY: (m['eov_y'] as num).toDouble(),
        eovX: (m['eov_x'] as num).toDouble(),
        lat: (m['lat'] as num).toDouble(),
        lon: (m['lon'] as num).toDouble(),
        altitude: (m['altitude'] as num?)?.toDouble(),
        speedKmh: (m['speed_kmh'] as num?)?.toDouble(),
        heading: (m['heading'] as num?)?.toDouble(),
        fixQuality: m['fix_quality'] as int?,
        accuracy: (m['accuracy'] as num?)?.toDouble(),
        timestamp: DateTime.tryParse((m['timestamp'] as String?) ?? '') ??
            DateTime.now(),
        deviceId: m['device_id'] as String?,
        appInstanceId: m['app_instance_id'] as String?,
      );
}