import 'package:flutter/foundation.dart';

/// A persisted app choice for one shortcut slot.
@immutable
class SlotAssignment {
  const SlotAssignment({
    required this.packageName,
    required this.activityName,
    required this.label,
    this.iconAsset,
  });

  final String packageName;
  final String activityName;
  final String label;

  /// Optional stylized SVG icon for this Home button. Null means the pinned
  /// app's own icon (or the generic fallback for fixed slots).
  final String? iconAsset;

  bool get hasCustomIcon => iconAsset?.isNotEmpty ?? false;

  factory SlotAssignment.fromMap(Map<dynamic, dynamic> map) {
    return SlotAssignment(
      packageName: (map['package'] as String?) ?? '',
      activityName: (map['activity'] as String?) ?? '',
      label: (map['label'] as String?) ?? '',
      iconAsset: map['iconAsset'] as String?,
    );
  }

  Map<String, Object?> toMap() {
    return {
      'package': packageName,
      'activity': activityName,
      'label': label,
      if (hasCustomIcon) 'iconAsset': iconAsset,
    };
  }

  @override
  bool operator ==(Object other) {
    return other is SlotAssignment &&
        other.packageName == packageName &&
        other.activityName == activityName;
  }

  @override
  int get hashCode => Object.hash(packageName, activityName);

  @override
  String toString() => label.isEmpty ? packageName : label;
}