import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'screens/history_screen.dart';
import 'screens/home_search_screen.dart';
import 'screens/oracle_chat_screen.dart';
import 'screens/provider_bakeoff_screen.dart';
import 'screens/settings_screen.dart';
import 'services/settings_repository.dart';
import 'services/words_repository.dart';
import 'widgets/gradient_star_badge.dart';

import 'g4f/client.dart';
import 'g4f/models.dart';
import 'g4f/providers/chatgpt_oss.dart';
import 'g4f/providers/pollinations.dart';
import 'g4f/providers/teach_anything.dart';
import 'g4f/providers/yqcloud.dart';
import 'g4f/providers/deep_ai.dart';
import 'g4f/providers/phind_ai.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await WordsRepository().init();
  await SettingsRepository().init();
  runApp(const Words999App());
}

class Words999App extends StatefulWidget {
  const Words999App({super.key});

  @override
  State<Words999App> createState() => _Words999AppState();
}

class _Words999AppState extends State<Words999App> {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Оракул 999 Символов',
      debugShowCheckedModeBanner: false,
      themeMode: ThemeMode.dark, // Default to rich mystical dark mode
      darkTheme: ThemeData(
        useMaterial3: true,
        brightness: Brightness.dark,
        scaffoldBackgroundColor: const Color(0xFF0C0E1A),
        colorScheme: const ColorScheme.dark(
          primary: Color(0xFFFFD54F), // Celestial Yellow Gold
          onPrimary: Color(0xFF1B1D30),
          primaryContainer: Color(0xFF2A2D4A),
          onPrimaryContainer: Color(0xFFFFF9C4),
          secondary: Color(0xFF80DEEA),
          surface: Color(0xFF151829),
          onSurface: Color(0xFFE8EAF6),
          surfaceContainerHigh: Color(0xFF1E2238),
          surfaceContainerHighest: Color(0xFF262B44),
          outline: Color(0xFF9FA8DA),
          outlineVariant: Color(0xFF3949AB),
        ),
        fontFamily: 'Roboto',
        appBarTheme: const AppBarTheme(
          backgroundColor: Color(0xFF0C0E1A),
          elevation: 0,
          scrolledUnderElevation: 3,
          centerTitle: false,
          titleTextStyle: TextStyle(
            color: Color(0xFFFFF9C4),
            fontSize: 20,
            fontWeight: FontWeight.w900,
            letterSpacing: 0.5,
          ),
        ),
        navigationBarTheme: NavigationBarThemeData(
          backgroundColor: const Color(0xFF101222),
          indicatorColor: const Color(0xFF2A2D4A),
          labelTextStyle: WidgetStateProperty.resolveWith((states) {
            if (states.contains(WidgetState.selected)) {
              return const TextStyle(
                color: Color(0xFFFFF9C4),
                fontWeight: FontWeight.bold,
                fontSize: 12,
              );
            }
            return const TextStyle(
              color: Color(0xFF8C93B8),
              fontSize: 12,
            );
          }),
        ),
      ),
      home: const bool.fromEnvironment('ORACLE_BAKEOFF')
          ? const ProviderBakeoffScreen()
          : const MainNavigationContainer(),
    );
  }
}

class MainNavigationContainer extends StatefulWidget {
  const MainNavigationContainer({super.key});

  @override
  State<MainNavigationContainer> createState() => _MainNavigationContainerState();
}

class _MainNavigationContainerState extends State<MainNavigationContainer> {
  int _currentIndex = 0;

  final List<Widget> _screens = const [
    HomeSearchScreen(),
    HistoryScreen(),
    SettingsScreen(),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: IndexedStack(
        index: _currentIndex,
        children: _screens,
      ),
      bottomNavigationBar: NavigationBar(
        selectedIndex: _currentIndex,
        onDestinationSelected: (index) {
          setState(() => _currentIndex = index);
          HapticFeedback.selectionClick();
        },
        destinations: const [
          NavigationDestination(
            icon: Icon(Icons.casino_outlined),
            selectedIcon: GradientStar(size: 22),
            label: 'Оракул',
          ),
          NavigationDestination(
            icon: Icon(Icons.history_rounded),
            selectedIcon: GradientStar(size: 22),
            label: 'История',
          ),
          NavigationDestination(
            icon: Icon(Icons.tune_rounded),
            selectedIcon: GradientStar(size: 22),
            label: 'Настройки',
          ),
        ],
      ),
      floatingActionButton: GestureDetector(
        onLongPress: () {
          Navigator.push(
            context,
            MaterialPageRoute(builder: (context) => const ProviderBakeoffScreen()),
          );
        },
        child: FloatingActionButton.extended(
          onPressed: () {
            Navigator.push(
              context,
              MaterialPageRoute(builder: (context) => const OracleChatScreen()),
            );
          },
          icon: const Icon(Icons.auto_awesome),
          label: const Text("ОРАКУЛ"),
        ),
      ),
    );
  }
}

class _G4FTestHelper {
  Future<String> testAI() async {
    final client = G4FClient();
    // We access the providers from the client's internal list by just creating them here to test directly.
    // Or simply test the main client logic. To test all, we will test them individually.
    
    // We import them dynamically inside the test to keep main.dart clean long-term
    final results = <String>[];
    final messages = [Message(role: Role.user, content: "Коротко ответь 'Работает' и добавь одно случайное эмодзи.")];
    
    // Yqcloud
    try {
      print("⏳ Тестируем Yqcloud...");
      results.add("📡 Yqcloud: " + await _testProvider(client, "Yqcloud", messages));
      print("✅ Yqcloud ответил!");
    } catch (e) {
      print("❌ Yqcloud Ошибка: $e");
      results.add("❌ Yqcloud Ошибка: $e");
    }
    
    // TeachAnything
    try {
      print("⏳ Тестируем TeachAnything...");
      results.add("📡 TeachAnything: " + await _testProvider(client, "TeachAnything", messages));
      print("✅ TeachAnything ответил!");
    } catch (e) {
      print("❌ TeachAnything Ошибка: $e");
      results.add("❌ TeachAnything Ошибка: $e");
    }
    
    // ChatGptOss
    try {
      print("⏳ Тестируем ChatGptOss...");
      results.add("📡 ChatGptOss: " + await _testProvider(client, "ChatGptOss", messages));
      print("✅ ChatGptOss ответил!");
    } catch (e) {
      print("❌ ChatGptOss Ошибка: $e");
      results.add("❌ ChatGptOss Ошибка: $e");
    }
    
    // Pollinations
    try {
      print("⏳ Тестируем Pollinations...");
      results.add("📡 Pollinations: " + await _testProvider(client, "Pollinations", messages));
      print("✅ Pollinations ответил!");
    } catch (e) {
      print("❌ Pollinations Ошибка: $e");
      results.add("❌ Pollinations Ошибка: $e");
    }
    
    // DeepAi
    try {
      print("⏳ Тестируем DeepAi...");
      results.add("📡 DeepAi: " + await _testProvider(client, "DeepAi", messages));
      print("✅ DeepAi ответил!");
    } catch (e) {
      print("❌ DeepAi Ошибка: $e");
      results.add("❌ DeepAi Ошибка: $e");
    }

    // PhindAi
    try {
      print("⏳ Тестируем PhindAi...");
      results.add("📡 PhindAi: " + await _testProvider(client, "PhindAi", messages));
      print("✅ PhindAi ответил!");
    } catch (e) {
      print("❌ PhindAi Ошибка: $e");
      results.add("❌ PhindAi Ошибка: $e");
    }

    // DeepInfraWebView
    try {
      print("⏳ Тестируем DeepInfraWebView (в скрытом браузере)...");
      String finalResult = "";
      await for (final chunk in client.chat.completions.createStream(messages: messages)) {
        finalResult += chunk;
      }
      results.add("📡 DeepInfraWebView: $finalResult");
      print("✅ DeepInfraWebView ответил!");
    } catch (e) {
      print("❌ DeepInfraWebView Ошибка: $e");
      results.add("❌ DeepInfraWebView Ошибка: $e");
    }

    print("🎉 Все тесты завершены!");
    return results.join("\\n\\n");
  }

  Future<String> _testProvider(G4FClient client, String providerName, List<Message> messages) async {
    try {
      dynamic provider;
      switch (providerName) {
        case "Yqcloud": provider = Yqcloud(); break;
        case "TeachAnything": provider = TeachAnything(); break;
        case "ChatGptOss": provider = ChatGptOss(); break;
        case "Pollinations": provider = Pollinations(); break;
        case "DeepAi": provider = DeepAi(); break;
        case "PhindAi": provider = PhindAi(); break;
      }
      
      final stream = provider.createAsyncGenerator(
        provider.defaultModel,
        messages,
        stream: false,
      );
      return await stream.join();
    } catch (e) {
      return "ОШИБКА: $e";
    }
  }
}