import 'dart:async';
import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import 'profile_screen.dart';
import 'shared_preferences_provider.dart';
import 'status_page.dart';

void main() {
  runApp(
    ChangeNotifierProvider(
      create: (_) => SharedPreferencesProvider(),
      child: const MyApp(),
    ),
  );
}

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

  @override
  MyAppState createState() => MyAppState();
}

class MyAppState extends State<MyApp> {
  Future<void>? _prefsReady;
  bool isProfileActive = false;
  bool showProfileInitially = false;

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

    // Retrieve SharedPreferencesProvider instance outside async function
    final prefsProvider =
        Provider.of<SharedPreferencesProvider>(context, listen: false);
    _prefsReady = prefsProvider.ready;

    _prefsReady!.then((_) {
      // Ensure the widget is still mounted before updating state
      if (mounted) {
        setState(() {
          // Check if the username is not set, then show ProfileScreen initially
          showProfileInitially = prefsProvider.getUserName().isEmpty;
        });
      }
    });
  }

  void toggleProfileScreen() {
    setState(() {
      isProfileActive = !isProfileActive;
    });
  }

  void closeInitialProfileScreen() {
    setState(() {
      showProfileInitially = false;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Pogdark',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
        elevatedButtonTheme: ElevatedButtonThemeData(
          style: ElevatedButton.styleFrom(
            padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
            shape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(12),
            ),
          ),
        ),
      ),
      home: FutureBuilder(
        future: _prefsReady,
        builder: (context, snapshot) {
          if (snapshot.connectionState == ConnectionState.done) {
            return Stack(
              children: [
                StatusPage(toggleProfile: toggleProfileScreen),
                if (showProfileInitially)
                  BackdropFilter(
                    filter: ImageFilter.blur(sigmaX: 5, sigmaY: 5),
                    child: Container(
                      color: Colors.black.withOpacity(0.3),
                      child: Center(
                        child: ProfileScreen(
                          isEditing: false,
                          onClose: closeInitialProfileScreen,
                        ),
                      ),
                    ),
                  ),
                if (isProfileActive && !showProfileInitially)
                  BackdropFilter(
                    filter: ImageFilter.blur(sigmaX: 5, sigmaY: 5),
                    child: Container(
                      color: Colors.black.withOpacity(0.3),
                      child: Center(
                        child: ProfileScreen(
                          isEditing: true,
                          onClose: toggleProfileScreen,
                        ),
                      ),
                    ),
                  ),
              ],
            );
          } else {
            return const Center(child: CircularProgressIndicator());
          }
        },
      ),
    );
  }
}