import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:travel_mate/models/trip_invitation.dart';
import 'package:travel_mate/pages/trip_invitations_page.dart';
import 'package:travel_mate/repositories/trip_invitation_repository.dart';

class _FakeTripInvitationDataSource implements TripInvitationDataSource {
  final StreamController<List<TripInvitation>> _controller =
      StreamController<List<TripInvitation>>();

  bool acceptedCalled = false;
  bool rejectedCalled = false;

  void emitInvitations(List<TripInvitation> invitations) {
    _controller.add(invitations);
  }

  @override
  Future<void> respondToInvitation({
    required String invitationId,
    required bool isAccepted,
  }) async {
    if (isAccepted) {
      acceptedCalled = true;
      return;
    }
    rejectedCalled = true;
  }

  @override
  Stream<List<TripInvitation>> watchInvitationsForUser(String userId) {
    return _controller.stream;
  }

  @override
  Future<void> createInvitation({
    required String tripId,
    required String tripTitle,
    required String inviterId,
    required String inviterName,
    required String inviteeId,
    required String inviteeEmail,
  }) async {}

  @override
  Future<TripInvitation?> getInvitationById(String invitationId) async {
    return null;
  }

  @override
  Future<TripInvitation?> getPendingInvitation({
    required String tripId,
    required String inviteeId,
  }) async {
    return null;
  }

  @override
  Stream<List<TripInvitation>> watchPendingInvitationsForUser(String userId) {
    return _controller.stream;
  }

  Future<void> dispose() async {
    await _controller.close();
  }
}

void main() {
  group('TripInvitationsPage', () {
    testWidgets('shows invitations in correct tabs', (tester) async {
      final fakeRepository = _FakeTripInvitationDataSource();

      await tester.pumpWidget(
        MaterialApp(
          home: TripInvitationsPage(
            repository: fakeRepository,
            userIdOverride: 'user_1',
          ),
        ),
      );

      final invitations = [
        TripInvitation(
          id: 'pending_1',
          tripId: 'trip_1',
          tripTitle: 'Road Trip',
          inviterId: 'u2',
          inviterName: 'Alice',
          inviteeId: 'user_1',
          inviteeEmail: 'user@example.com',
          status: 'pending',
          createdAt: DateTime(2026, 3, 6),
        ),
        TripInvitation(
          id: 'accepted_1',
          tripId: 'trip_2',
          tripTitle: 'Tokyo',
          inviterId: 'u3',
          inviterName: 'Bob',
          inviteeId: 'user_1',
          inviteeEmail: 'user@example.com',
          status: 'accepted',
          createdAt: DateTime(2026, 3, 6),
        ),
      ];

      fakeRepository.emitInvitations(invitations);
      await tester.pump();

      expect(find.text('Road Trip'), findsOneWidget);
      expect(find.text('Accepter'), findsOneWidget);

      await tester.tap(find.text('Acceptées'));
      await tester.pumpAndSettle();

      expect(find.text('Tokyo'), findsOneWidget);
      expect(find.text('Accepter'), findsNothing);

      await fakeRepository.dispose();
    });
  });
}