import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:supabase_flutter/supabase_flutter.dart';
import 'package:intl/date_symbol_data_local.dart';
import 'package:app_links/app_links.dart';
import 'core/routes.dart';

const _supabaseUrl     = 'https://xeotegswjwmhkwvtuxgx.supabase.co';
const _supabaseAnonKey = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6Inhlb3RlZ3N3andtaGt3dnR1eGd4Iiwicm9sZSI6ImFub24iLCJpYXQiOjE3NzIxODEwMjcsImV4cCI6MjA4Nzc1NzAyN30.PW6IQhpO8PRhPzA3ycPOgy_-Pqw9XQ0BCCE5ukPCcVM';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await initializeDateFormatting('pt_PT', null);

  await Supabase.initialize(
    url: _supabaseUrl,
    anonKey: _supabaseAnonKey,
    authOptions: const FlutterAuthClientOptions(
      authFlowType: AuthFlowType.pkce,
    ),
  );

  runApp(const ProviderScope(child: CrecheApp()));
}

class CrecheApp extends ConsumerStatefulWidget {
  const CrecheApp({super.key});
  @override
  ConsumerState<CrecheApp> createState() => _CrecheAppState();
}

class _CrecheAppState extends ConsumerState<CrecheApp> {
  final _appLinks = AppLinks();

  @override
  void initState() {
    super.initState();
    _initDeepLinks();
  }

  Future<void> _initDeepLinks() async {
    try {
      final initialUri = await _appLinks.getInitialLink();
      if (initialUri != null && _isAuthUri(initialUri)) {
        await _handleDeepLink(initialUri);
      }
    } catch (_) {}

    _appLinks.uriLinkStream.listen(
      (uri) { if (_isAuthUri(uri)) _handleDeepLink(uri); },
      onError: (_) {},
    );
  }

  bool _isAuthUri(Uri uri) {
    final q = uri.queryParameters;
    return q.containsKey('code') ||
           q.containsKey('access_token') ||
           q.containsKey('token_hash') ||
           uri.host == 'login-callback' ||
           uri.path.contains('login-callback');
  }

  Future<void> _handleDeepLink(Uri uri) async {
    try {
      await Supabase.instance.client.auth.getSessionFromUrl(uri);
    } catch (e) {
      debugPrint('Deep link error: $e');
    }
  }

  @override
  Widget build(BuildContext context) {
    final router = ref.watch(goRouterProvider);
    return MaterialApp.router(
      title: 'Diário do Candengue',
      debugShowCheckedModeBanner: false,
      routerConfig: router,
      theme: ThemeData(
        brightness: Brightness.dark,
        scaffoldBackgroundColor: const Color(0xFF0D1117),
        colorScheme: const ColorScheme.dark(
          primary:   Color(0xFF4FC3F7),
          secondary: Color(0xFF2ECC71),
          surface:   Color(0xFF161B22),
          error:     Color(0xFFE74C3C),
        ),
        appBarTheme: const AppBarTheme(
          backgroundColor: Color(0xFF161B22),
          elevation: 0,
          iconTheme: IconThemeData(color: Color(0xFF4FC3F7)),
          titleTextStyle: TextStyle(
            color: Color(0xFF4FC3F7), fontSize: 18, fontWeight: FontWeight.bold),
        ),
        bottomNavigationBarTheme: const BottomNavigationBarThemeData(
          backgroundColor:     Color(0xFF161B22),
          selectedItemColor:   Color(0xFF4FC3F7),
          unselectedItemColor: Color(0xFF888888),
          type: BottomNavigationBarType.fixed,
        ),
        inputDecorationTheme: InputDecorationTheme(
          filled: true,
          fillColor: Colors.white.withOpacity(0.04),
          border: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: BorderSide(color: Colors.white.withOpacity(0.09)),
          ),
        ),
        useMaterial3: true,
      ),
    );
  }
}