import 'dart:io';
import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:supabase_flutter/supabase_flutter.dart';
import 'app/router/app_router.dart';

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();

  // Load environment variables from .env
  await dotenv.load(fileName: '.env');

  final supabaseUrl = dotenv.env['SUPABASE_URL'] ?? '';
  final supabaseKey = dotenv.env['SUPABASE_PUBLISHABLE_KEY'] ??
      dotenv.env['SUPABASE_ANON_KEY'] ??
      '';

  if (supabaseUrl.isNotEmpty && supabaseKey.isNotEmpty) {
    await Supabase.initialize(
      url: supabaseUrl,
      publishableKey: supabaseKey,
    );
  } else {
    debugPrint(
      'WARNING: SUPABASE_URL or SUPABASE_PUBLISHABLE_KEY missing in .env. Supabase client uninitialized.',
    );
  }

  runApp(const ProviderScope(child: GLP1CompanionApp()));
}

class GLP1CompanionApp extends ConsumerWidget {
  const GLP1CompanionApp({super.key});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final router = ref.watch(routerProvider);
    final isApple = !kIsWeb && (Platform.isIOS || Platform.isMacOS);

    if (isApple) {
      return CupertinoApp.router(
        title: 'GLP-1 Companion',
        routerConfig: router,
        theme: const CupertinoThemeData(
          brightness: Brightness.light,
          primaryColor: CupertinoColors.activeGreen,
        ),
        debugShowCheckedModeBanner: false,
      );
    }

    return MaterialApp.router(
      title: 'GLP-1 Companion',
      routerConfig: router,
      theme: ThemeData(
        useMaterial3: true,
        colorSchemeSeed: Colors.teal,
        brightness: Brightness.light,
      ),
      debugShowCheckedModeBanner: false,
    );
  }
}