import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:record/record.dart';
import 'dart:async';

import 'package:flutter_app/core/network/api_repository.dart';
import 'package:flutter_app/features/chat/presentation/cubit/chat_cubit.dart';
import 'package:flutter_app/features/chat/presentation/cubit/chat_state.dart';
import 'package:flutter_app/features/audio/presentation/cubit/voice_cubit.dart';
import 'package:flutter_app/main.dart';

class _TestApiRepository extends ApiRepository {
  _TestApiRepository() : super(baseUrl: 'http://127.0.0.1:8000');

  @override
  Future<String> getModelName() async => 'gemma4:e2b';

  @override
  Future<List<String>> getAvailableModels() async => ['gemma4:e2b'];

  @override
  Future<List<SavedConversation>> listConversations() async => [];
}

class _CancellableWidgetApi extends _TestApiRepository {
  final controller = StreamController<String>();

  @override
  Future<void> saveConversation(SavedConversation conversation) async {}

  @override
  Stream<String> completeStream(List<ChatMessage> messages, {String? model}) =>
      controller.stream;

  @override
  void cancelActiveRequest() {
    controller.close();
  }
}

void main() {
  testWidgets('chat page fits a compact Windows window', (tester) async {
    tester.view.physicalSize = const Size(800, 600);
    tester.view.devicePixelRatio = 1;
    addTearDown(tester.view.resetPhysicalSize);
    addTearDown(tester.view.resetDevicePixelRatio);

    final api = _TestApiRepository();
    await tester.pumpWidget(
      MultiRepositoryProvider(
        providers: [RepositoryProvider<ApiRepository>.value(value: api)],
        child: MultiBlocProvider(
          providers: [
            BlocProvider(create: (_) => ChatCubit(api)),
            BlocProvider(create: (_) => VoiceCubit(api, AudioRecorder())),
          ],
          child: const SovereignApp(),
        ),
      ),
    );
    await tester.pumpAndSettle();

    expect(find.text('مساعدك المحلي'), findsOneWidget);
    expect(tester.takeException(), isNull);
  });

  testWidgets('stop button cancels an active answer', (tester) async {
    tester.view.physicalSize = const Size(1000, 700);
    tester.view.devicePixelRatio = 1;
    addTearDown(tester.view.resetPhysicalSize);
    addTearDown(tester.view.resetDevicePixelRatio);

    final api = _CancellableWidgetApi();
    final cubit = ChatCubit(api);
    await tester.pumpWidget(
      MultiRepositoryProvider(
        providers: [RepositoryProvider<ApiRepository>.value(value: api)],
        child: MultiBlocProvider(
          providers: [
            BlocProvider<ChatCubit>.value(value: cubit),
            BlocProvider(create: (_) => VoiceCubit(api, AudioRecorder())),
          ],
          child: const SovereignApp(),
        ),
      ),
    );
    await tester.pumpAndSettle();

    await tester.enterText(find.byType(TextField), 'أوقف هذا الرد');
    await tester.tap(find.byTooltip('إرسال'));
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 30));
    expect(find.byTooltip('إيقاف التوليد'), findsOneWidget);

    await tester.tap(find.byTooltip('إيقاف التوليد'));
    await tester.pump();
    await tester.pumpAndSettle(const Duration(milliseconds: 50));

    expect(cubit.state.requestStatus, RequestStatus.cancelled);
    expect(find.byTooltip('إرسال'), findsOneWidget);
    expect(tester.takeException(), isNull);
    await cubit.close();
    await api.controller.close();
  });
}