import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../auth/auth_providers.dart';
import 'group_ride_models.dart';
import 'group_ride_service.dart';

/// Provider for GroupRideService.
final groupRideServiceProvider = Provider<GroupRideService>((ref) {
  return GroupRideService();
});

/// Stream of a specific Group Ride by ID.
final groupRideStreamProvider =
    StreamProvider.family<GroupRide?, String>((ref, rideId) {
  final service = ref.watch(groupRideServiceProvider);
  return service.groupRideStream(rideId);
});

/// Stream of participants for a specific Group Ride.
final groupRideParticipantsProvider =
    StreamProvider.family<List<GroupRideParticipant>, String>((ref, rideId) {
  final service = ref.watch(groupRideServiceProvider);
  return service.participantsStream(rideId);
});

/// Stream of upcoming Group Rides for the current user.
final upcomingGroupRidesProvider = StreamProvider<List<GroupRide>>((ref) {
  final user = ref.watch(currentUserProvider);
  if (user == null || user.isAnonymous) {
    return Stream.value([]);
  }
  final service = ref.watch(groupRideServiceProvider);
  return service.upcomingRidesStream(callerUid: user.uid);
});