import 'package:flame/components.dart';
import 'package:flame/game.dart';
import 'package:flutter/material.dart';
import 'package:match_magic/game/sprite_loader.dart';
import 'package:match_magic/utilities/audio_manager.dart';
import 'package:provider/provider.dart';
import 'board.dart';
import 'swap_notifier.dart';

class MatchMagicGameScreen extends StatefulWidget {
  const MatchMagicGameScreen({Key? key}) : super(key: key);

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

class _MatchMagicGameScreenState extends State<MatchMagicGameScreen> {
  late Future<List<Sprite>> _crystalsFuture;
  late Future<Sprite> _magicCubeFuture;
  Board? board;

  @override
  void initState() {
    super.initState();
    _crystalsFuture = SpriteLoader.loadCrystalSprites();
    _magicCubeFuture = SpriteLoader.loadMagicCubeSprite();
    AudioManager.load();
  }

  void _restartGame() {
    context.read<SwapNotifier>().resetScore();
    setState(() {
      board = null;
      _crystalsFuture = SpriteLoader.loadCrystalSprites();
      _magicCubeFuture = SpriteLoader.loadMagicCubeSprite();
    });
  }

  void _showSettingsDialog() {
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
          title: const Text('Settings'),
          content: const Text('The settings have not yet been implemented.'),
          actions: [
            TextButton(
              onPressed: () {
                Navigator.of(context).pop();
                _showExitConfirmationDialog();
              },
              child: const Text('Exit to Main Menu'),
            ),
            TextButton(
              onPressed: () {
                Navigator.of(context).pop();
              },
              child: const Text('Close'),
            ),
          ],
        );
      },
    );
  }

  void _showExitConfirmationDialog() {
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
          title: const Text('Warning'),
          content: const Text(
              'You will lose all game progress. Are you sure you want to exit?'),
          actions: [
            TextButton(
              onPressed: () {
                Navigator.of(context).pop();
                Navigator.of(context).popUntil((route) => route.isFirst);
                context.read<SwapNotifier>().resetScore();
              },
              child: const Text('Yes'),
            ),
            TextButton(
              onPressed: () {
                Navigator.of(context).pop();
              },
              child: const Text('No'),
            ),
          ],
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      body: FutureBuilder<List<Sprite>>(
        future: _crystalsFuture,
        builder: (context, crystalSnapshot) {
          if (crystalSnapshot.connectionState == ConnectionState.done) {
            if (crystalSnapshot.hasError) {
              return Center(child: Text('Error: ${crystalSnapshot.error}'));
            } else if (!crystalSnapshot.hasData ||
                crystalSnapshot.data == null) {
              return const Center(child: Text('No crystal sprites found'));
            } else {
              final crystals = crystalSnapshot.data!;

              return FutureBuilder<Sprite>(
                future: _magicCubeFuture,
                builder: (context, cubeSnapshot) {
                  if (cubeSnapshot.connectionState == ConnectionState.done) {
                    if (cubeSnapshot.hasError) {
                      return Center(
                          child: Text('Error: ${cubeSnapshot.error}'));
                    } else if (!cubeSnapshot.hasData ||
                        cubeSnapshot.data == null) {
                      return const Center(
                          child: Text('No magic cube sprite found'));
                    } else {
                      final magicCube = cubeSnapshot.data!;

                      board ??= Board(
                        sprites: crystals,
                        magicCubeSprite: magicCube,
                        swapNotifier: context.read<SwapNotifier>(),
                      );

                      return Stack(
                        children: [
                          Column(
                            children: [
                              const SizedBox(height: 50),
                              const ScoreDisplay(),
                              Expanded(
                                child: Center(
                                  child: AspectRatio(
                                    aspectRatio: 1,
                                    child: GameWidget(game: board!),
                                  ),
                                ),
                              ),
                              Row(
                                mainAxisAlignment: MainAxisAlignment.center,
                                children: [
                                  ElevatedButton(
                                    onPressed: _restartGame,
                                    child: const Text(
                                      'Restart',
                                      style: TextStyle(color: Colors.black),
                                    ),
                                  ),
                                  const SizedBox(width: 20),
                                  ElevatedButton(
                                    onPressed: () {
                                      board?.showHint();
                                    },
                                    child: const Text(
                                      'Hint',
                                      style: TextStyle(color: Colors.black),
                                    ),
                                  ),
                                ],
                              ),
                              const SizedBox(height: 50),
                            ],
                          ),
                          Positioned(
                            top: 16,
                            left: 16,
                            child: IconButton(
                              icon: const Icon(Icons.settings,
                                  color: Colors.white),
                              onPressed: _showSettingsDialog,
                            ),
                          ),
                        ],
                      );
                    }
                  } else {
                    return const Center(child: CircularProgressIndicator());
                  }
                },
              );
            }
          } else {
            return const Center(child: CircularProgressIndicator());
          }
        },
      ),
    );
  }
}

class ScoreDisplay extends StatelessWidget {
  const ScoreDisplay({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.all(8.0),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Consumer<SwapNotifier>(
            builder: (context, notifier, child) {
              return Card(
                color: Colors.blueGrey[900],
                child: Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Text(
                    'Score: ${notifier.score}',
                    style: const TextStyle(
                        fontSize: 18,
                        fontWeight: FontWeight.bold,
                        color: Colors.white),
                  ),
                ),
              );
            },
          ),
          Consumer<SwapNotifier>(
            builder: (context, notifier, child) {
              return Card(
                color: Colors.blueGrey[900],
                child: Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Text(
                    'Moves: ${notifier.moveCount}',
                    style: const TextStyle(
                        fontSize: 18,
                        fontWeight: FontWeight.bold,
                        color: Colors.white),
                  ),
                ),
              );
            },
          ),
        ],
      ),
    );
  }
}