rely/lib/features/people/presentation/providers/people_ui_state.dart

import 'package:flutter_riverpod/flutter_riverpod.dart';

/// Current sort mode for the people list.
enum PeopleSortOption { affinity, nextMoment, alphabetical }

/// Selected profile in the people workspace.
class SelectedPersonIdNotifier extends Notifier<String?> {
  @override
  String? build() => null;

  void select(String id) {
    state = id;
  }

  void clear() {
    state = null;
  }
}

final NotifierProvider<SelectedPersonIdNotifier, String?>
selectedPersonIdProvider = NotifierProvider<SelectedPersonIdNotifier, String?>(
  SelectedPersonIdNotifier.new,
);

/// Search query applied to the people list.
class PeopleSearchQueryNotifier extends Notifier<String> {
  @override
  String build() => '';

  void set(String value) {
    state = value;
  }
}

final NotifierProvider<PeopleSearchQueryNotifier, String>
peopleSearchQueryProvider = NotifierProvider<PeopleSearchQueryNotifier, String>(
  PeopleSearchQueryNotifier.new,
);

/// Relationship filter applied to the people list.
class PeopleRelationshipFilterNotifier extends Notifier<String?> {
  @override
  String? build() => null;

  void set(String? value) {
    state = value;
  }
}

final NotifierProvider<PeopleRelationshipFilterNotifier, String?>
peopleRelationshipFilterProvider =
    NotifierProvider<PeopleRelationshipFilterNotifier, String?>(
      PeopleRelationshipFilterNotifier.new,
    );

/// Selected sort mode for the people list.
class PeopleSortOptionNotifier extends Notifier<PeopleSortOption> {
  @override
  PeopleSortOption build() => PeopleSortOption.affinity;

  void set(PeopleSortOption value) {
    state = value;
  }
}

final NotifierProvider<PeopleSortOptionNotifier, PeopleSortOption>
peopleSortOptionProvider =
    NotifierProvider<PeopleSortOptionNotifier, PeopleSortOption>(
      PeopleSortOptionNotifier.new,
    );