import 'package:flutter/material.dart';
import 'package:wolf_3d_data_types/wolf_3d_data_types.dart';
import 'package:wolf_3d_flutter/wolf_3d.dart';
import 'package:wolf_3d_renderer/wolf_3d_renderer.dart';

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

  @override
  State<DifficultyScreen> createState() => _DifficultyScreenState();
}

class _DifficultyScreenState extends State<DifficultyScreen> {
  bool get isShareware => Wolf3d.I.activeGame.version == GameVersion.shareware;

  @override
  void dispose() {
    Wolf3d.I.audio.stopMusic();
    super.dispose();
  }

  void _startGame(Difficulty difficulty, {bool showGallery = false}) {
    Wolf3d.I.audio.stopMusic();

    Navigator.of(context).pushReplacement(
      MaterialPageRoute(
        builder: (_) => WolfRenderer(
          Wolf3d.I.activeGame,
          difficulty: difficulty,
          startingEpisode: Wolf3d.I.activeEpisode,
          audio: Wolf3d.I.audio,
        ),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      floatingActionButton: FloatingActionButton(
        backgroundColor: Colors.red[900],
        onPressed: () => _startGame(Difficulty.bringEmOn, showGallery: true),
        child: const Icon(Icons.bug_report, color: Colors.white),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            const Text(
              'HOW TOUGH ARE YOU?',
              style: TextStyle(
                color: Colors.red,
                fontSize: 32,
                fontWeight: FontWeight.bold,
                fontFamily: 'Courier',
              ),
            ),
            const SizedBox(height: 40),

            // --- Difficulty Buttons ---
            ListView.builder(
              shrinkWrap: true,
              itemCount: Difficulty.values.length,
              itemBuilder: (context, index) {
                final Difficulty difficulty = Difficulty.values[index];
                return Padding(
                  padding: const EdgeInsets.symmetric(vertical: 8.0),
                  child: ElevatedButton(
                    style: ElevatedButton.styleFrom(
                      backgroundColor: Colors.blueGrey[900],
                      foregroundColor: Colors.white,
                      minimumSize: const Size(300, 50),
                      shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(4),
                      ),
                    ),
                    onPressed: () => _startGame(difficulty),
                    child: Text(
                      difficulty.title,
                      style: const TextStyle(fontSize: 18),
                    ),
                  ),
                );
              },
            ),
          ],
        ),
      ),
    );
  }
}