import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:path_provider_platform_interface/path_provider_platform_interface.dart';
import 'package:ikar/core/config/app_wallpaper_tint.dart';
import 'package:ikar/core/storage/app_database.dart';
import 'package:ikar/core/storage/chat_wallpaper_store.dart';
import 'package:ikar/core/utils/haptics.dart';
import 'package:ikar/frontend/screens/profile/custom_gradient_editor_screen.dart';
import 'package:ikar/frontend/screens/profile/theme_settings_screen.dart';
import 'package:ikar/l10n/app_localizations.dart';
import 'package:ikar/main.dart' show api;
import 'package:shared_preferences/shared_preferences.dart';

class _Paths extends PathProviderPlatform {
  _Paths(this.path);
  final String path;
  @override
  Future<String?> getApplicationSupportPath() async => path;
  @override
  Future<String?> getApplicationDocumentsPath() async => path;
}

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  testWidgets(
    'custom theme edits the global gradient and keeps chat overrides',
    (tester) async {
      final previousPaths = PathProviderPlatform.instance;
      late Directory dir;
      await tester.runAsync(() async {
        api.state;
        dir = await Directory.systemTemp.createTemp('ikar-theme-test-');
        PathProviderPlatform.instance = _Paths(dir.path);
        SharedPreferences.setMockInitialValues({});
        Haptics.enabled = false;
        await AppWallpaperTint.load();
        await AppDatabase.init();
        await AppDatabase.saveProfile(ProfileData.stub(42));
        await AppDatabase.setActiveAccount(42);
        await ChatWallpaperStore.instance.load();
        await ChatWallpaperStore.instance.setTheme(
          42,
          7,
          'synthetic-chat-theme',
        );
      });
      addTearDown(() async {
        await api.dispose();
        await AppDatabase.close();
        PathProviderPlatform.instance = previousPaths;
        Haptics.enabled = true;
        await dir.delete(recursive: true);
      });
      await tester.pumpWidget(
        MaterialApp(
          locale: const Locale('ru'),
          localizationsDelegates: AppLocalizations.localizationsDelegates,
          supportedLocales: AppLocalizations.supportedLocales,
          home: const ThemeSettingsScreen(),
        ),
      );
      await tester.runAsync(
        () => Future<void>.delayed(const Duration(milliseconds: 100)),
      );
      await tester.pumpAndSettle();
      await tester.tap(find.text('Собственная тема'));
      await tester.pumpAndSettle();
      expect(AppWallpaperTint.current.value, isTrue);
      expect(find.text('Настроить'), findsOneWidget);
      await tester.tap(find.text('Настроить'));
      await tester.pumpAndSettle();
      expect(find.byType(CustomGradientEditorScreen), findsOneWidget);
      final editorContext = tester.element(
        find.byType(CustomGradientEditorScreen),
      );
      Navigator.of(editorContext).pop(
        const CustomGradientResult(
          colors: [Colors.red, Colors.blue],
          animated: false,
          rotation: 0.7,
        ),
      );
      await tester.runAsync(
        () => Future<void>.delayed(const Duration(milliseconds: 100)),
      );
      await tester.pumpAndSettle();
      final wallpaper = ChatWallpaperStore.instance.get(
        42,
        kGlobalWallpaperChatId,
      )!;
      expect(wallpaper.gradientColors!.map((color) => color.toARGB32()), [
        Colors.red.toARGB32(),
        Colors.blue.toARGB32(),
      ]);
      expect(wallpaper.gradientRotation, 0.7);
      expect(
        ChatWallpaperStore.instance.get(42, 7)!.themeId,
        'synthetic-chat-theme',
      );
      final restored = ChatWallpaperStore.forTesting();
      await tester.runAsync(restored.load);
      expect(
        restored
            .get(42, kGlobalWallpaperChatId)!
            .gradientColors!
            .map((color) => color.toARGB32()),
        [Colors.red.toARGB32(), Colors.blue.toARGB32()],
      );
      await tester.tap(find.text('Системная'));
      await tester.pumpAndSettle();
      expect(AppWallpaperTint.current.value, isFalse);
      expect(restored.get(42, kGlobalWallpaperChatId), isNotNull);
      await tester.pumpWidget(const SizedBox.shrink());
    },
  );
}