import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:travel_mate/models/trip_invitation.dart';

void main() {
  group('TripInvitation', () {
    test('toMap serializes required fields', () {
      final invitation = TripInvitation(
        id: 'id_1',
        tripId: 'trip_1',
        tripTitle: 'Weekend Rome',
        inviterId: 'user_a',
        inviterName: 'Alice',
        inviteeId: 'user_b',
        inviteeEmail: 'bob@example.com',
        createdAt: DateTime(2026, 3, 3),
      );

      final map = invitation.toMap();

      expect(map['tripId'], 'trip_1');
      expect(map['status'], 'pending');
      expect(map['respondedAt'], isNull);
      expect(map['createdAt'], isA<Timestamp>());
    });

    test('copyWith updates selected values', () {
      final invitation = TripInvitation(
        id: 'id_1',
        tripId: 'trip_1',
        tripTitle: 'Trip',
        inviterId: 'user_a',
        inviterName: 'Alice',
        inviteeId: 'user_b',
        inviteeEmail: 'bob@example.com',
        createdAt: DateTime(2026, 3, 3),
      );

      final updated = invitation.copyWith(
        status: 'accepted',
        respondedAt: DateTime(2026, 3, 4),
      );

      expect(updated.status, 'accepted');
      expect(updated.respondedAt, DateTime(2026, 3, 4));
      expect(updated.tripId, invitation.tripId);
    });
  });
}