import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:mocktail/mocktail.dart';

import 'package:timetrack/features/entries/data/drift_entries_repository.dart';
import 'package:timetrack/features/entries/data/entries_repository.dart';
import 'package:timetrack/features/projects/data/drift_projects_repository.dart';
import 'package:timetrack/features/projects/data/projects_repository.dart';
import 'package:timetrack/features/projects/domain/project.dart';
import 'package:timetrack/features/projects/presentation/projects_screen.dart';

class MockProjectsRepository extends Mock implements ProjectsRepository {}
class MockTimeEntriesRepository extends Mock implements TimeEntriesRepository {}

void main() {
  late MockProjectsRepository mockProjects;
  late MockTimeEntriesRepository mockEntries;

  setUp(() {
    mockProjects = MockProjectsRepository();
    mockEntries = MockTimeEntriesRepository();

    when(() => mockProjects.watchAll())
        .thenAnswer((_) => Stream.value([]));
    when(() => mockProjects.watchActive())
        .thenAnswer((_) => Stream.value([]));
    when(() => mockEntries.watchByDateRange(any(), any()))
        .thenAnswer((_) => Stream.value([]));
  });

  Widget buildTestApp() {
    return ProviderScope(
      overrides: [
        projectsRepositoryProvider.overrideWithValue(mockProjects),
        timeEntriesRepositoryProvider.overrideWithValue(mockEntries),
      ],
      child: const MaterialApp(home: ProjectsScreen()),
    );
  }

  testWidgets('shows empty state on Active tab', (tester) async {
    await tester.pumpWidget(buildTestApp());
    await tester.pump();

    expect(find.byKey(const Key('active_empty')), findsOneWidget);
  });

  testWidgets('shows Add Project button', (tester) async {
    await tester.pumpWidget(buildTestApp());
    await tester.pump();

    expect(find.byIcon(Icons.add), findsOneWidget);
  });

  testWidgets('shows Active and Archived tabs', (tester) async {
    await tester.pumpWidget(buildTestApp());
    await tester.pump();

    expect(find.text('Active'), findsOneWidget);
    expect(find.text('Archived'), findsOneWidget);
  });

  testWidgets('renders project tile when project exists', (tester) async {
    final project = Project(
      id: 1,
      name: 'My Project',
      colorValue: 0xFF2563EB,
      createdAt: DateTime(2026),
    );
    when(() => mockProjects.watchActive())
        .thenAnswer((_) => Stream.value([project]));

    await tester.pumpWidget(buildTestApp());
    await tester.pump();

    expect(find.byKey(const Key('project_tile_1')), findsOneWidget);
    expect(find.text('My Project'), findsOneWidget);
  });

  testWidgets('tap Add opens project form sheet', (tester) async {
    await tester.pumpWidget(buildTestApp());
    await tester.pump();

    await tester.tap(find.byIcon(Icons.add));
    await tester.pumpAndSettle();

    expect(find.byKey(const Key('project_name_field')), findsOneWidget);
  });
}