34 lines
1.0 KiB
Dart
34 lines
1.0 KiB
Dart
import 'package:hydrated_bloc/hydrated_bloc.dart';
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import '../../../../api/marianumconnect/queries/get_capabilities/guardian_child.dart';
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/// The child a guardian is currently looking at. Shared by every module that
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/// shows per-child data (timetable, absence report, later messages), so
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/// switching the child in one place switches it everywhere.
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class ChildSelectionCubit extends HydratedCubit<String?> {
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ChildSelectionCubit() : super(null);
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void select(String childId) => emit(childId);
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Future<void> reset() async => emit(null);
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@override
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String? fromJson(Map<String, dynamic> json) => json['childId'] as String?;
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@override
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Map<String, dynamic>? toJson(String? state) => {'childId': state};
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}
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/// The selected child if it is still linked, otherwise the first one. Null
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/// when there are no children.
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GuardianChild? effectiveChild(
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List<GuardianChild> children,
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String? selectedId,
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) {
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if (children.isEmpty) return null;
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for (final child in children) {
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if (child.id == selectedId) return child;
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}
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return children.first;
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}
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