import 'package:riverpod_annotation/riverpod_annotation.dart';

import '../../auth/application/auth_notifier.dart';
import '../../../core/admin/admin_guard.dart';
import '../domain/user_profile.dart';
import '../infrastructure/profile_repository.dart';

part 'profile_notifier.g.dart';

/// Live profile of the currently signed-in user. Emits null while loading or
/// when no user is signed in.
@riverpod
Stream<UserProfile?> currentProfile(CurrentProfileRef ref) {
  final user = ref.watch(authNotifierProvider).valueOrNull;
  if (user == null) return Stream.value(null);
  return ref.watch(profileRepositoryProvider).watchProfile(user.uid);
}

/// Resolves the effective [UserRole] for the current session. Admin status is
/// determined by email allow-list first (so seed-data admins work before
/// they've even loaded a profile doc); otherwise the Firestore-stored role is
/// used, defaulting to [UserRole.viewer] when not logged in.
@riverpod
UserRole currentUserRole(CurrentUserRoleRef ref) {
  final user = ref.watch(authNotifierProvider).valueOrNull;
  if (user == null) return UserRole.viewer;
  if (isAdmin(user)) return UserRole.admin;
  final profile = ref.watch(currentProfileProvider).valueOrNull;
  if (profile == null) return UserRole.viewer;
  return profile.role;
}

/// One-shot lookup of an arbitrary user profile by uid. Used by the public
/// player profile screen.
@riverpod
Future<UserProfile?> profileById(ProfileByIdRef ref, String uid) {
  return ref.watch(profileRepositoryProvider).getProfile(uid);
}