import 'position.dart';

class Room {
  const Room({required this.id, required this.name, required this.polygon});

  final String id;
  final String name;

  /// Polygon vertices in normalised 0..1 coordinates.
  final List<Position> polygon;

  Room copyWith({String? name, List<Position>? polygon}) =>
      Room(id: id, name: name ?? this.name, polygon: polygon ?? this.polygon);

  Map<String, dynamic> toJson() => {
        'id': id,
        'name': name,
        'polygon': polygon.map((p) => p.toJson()).toList(),
      };

  factory Room.fromJson(Map<String, dynamic> json) => Room(
        id: json['id'] as String,
        name: json['name'] as String,
        polygon: (json['polygon'] as List)
            .map((p) => Position.fromJson(p as Map<String, dynamic>))
            .toList(),
      );
}

class FloorPlan {
  const FloorPlan({
    required this.id,
    required this.floorId,
    required this.metersPerUnit,
    required this.rooms,
  });

  final String id;
  final String floorId;

  /// Scale: how many real-world meters one normalised unit represents.
  final double metersPerUnit;

  final List<Room> rooms;

  FloorPlan copyWith({double? metersPerUnit, List<Room>? rooms}) => FloorPlan(
        id: id,
        floorId: floorId,
        metersPerUnit: metersPerUnit ?? this.metersPerUnit,
        rooms: rooms ?? this.rooms,
      );

  Map<String, dynamic> toJson() => {
        'id': id,
        'floor_id': floorId,
        'meters_per_unit': metersPerUnit,
        'rooms': rooms.map((r) => r.toJson()).toList(),
      };

  factory FloorPlan.fromJson(Map<String, dynamic> json) => FloorPlan(
        id: json['id'] as String,
        floorId: json['floor_id'] as String,
        metersPerUnit: (json['meters_per_unit'] as num).toDouble(),
        rooms: (json['rooms'] as List)
            .map((r) => Room.fromJson(r as Map<String, dynamic>))
            .toList(),
      );
}