import 'package:isar/isar.dart';
import 'package:match_magic/models/isar/high_score.dart';
import 'package:match_magic/models/isar/settings.dart';
import 'package:path_provider/path_provider.dart';

class MainDB {
  MainDB._();
  static MainDB? _instance;
  static MainDB get instance => _instance ??= MainDB._();

  Isar? _isar;

  Isar get isar => _isar!;

  Future<bool> initMainDB({Isar? mock}) async {
    final dir = await getApplicationDocumentsDirectory();
    if (mock != null) {
      _isar = mock;
      return true;
    }
    if (_isar != null && isar.isOpen) return false;

    _isar = await Isar.open(
      [SettingsSchema, HighScoreSchema],
      directory: dir.path,
      inspector: false,
    );
    return true;
  }

  Future<void> saveSoundEnabled(bool isEnabled) async {
    print('saveSoundEnabled $isEnabled');
    final settings = await isar.settings.where().findFirst();
    await isar.writeTxn(() async {
      if (settings != null) {
        settings.isSoundEnabled = isEnabled;
        await isar.settings.put(settings);
      } else {
        final newSettings = Settings(
          isSoundEnabled: isEnabled,
          isMusicEnabled: true,
        );
        await isar.settings.put(newSettings);
      }
    });
  }

  Future<void> saveMusicEnabled(bool isEnabled) async {
    final settings = await isar.settings.where().findFirst();
    await isar.writeTxn(() async {
      if (settings != null) {
        settings.isMusicEnabled = isEnabled;
        await isar.settings.put(settings);
      } else {
        final newSettings = Settings(
          isSoundEnabled: true,
          isMusicEnabled: isEnabled,
        );
        await isar.settings.put(newSettings);
      }
    });
  }

  Future<bool> getSoundEnabled() async {
    final settings = await isar.settings.where().findFirst();
    return settings?.isSoundEnabled ?? true;
  }

  Future<bool> getMusicEnabled() async {
    final settings = await isar.settings.where().findFirst();
    return settings?.isMusicEnabled ?? true;
  }

  Future<void> addHighScore(int score, Function()? callback) async {
    final highScore = HighScore(
      highScoreValue: score,
    );

    await isar.writeTxn(() async {
      final existingHighScore = await isar.highScores.where().findFirst();

      if (existingHighScore != null) {
        if (score > existingHighScore.highScoreValue) {
          existingHighScore.highScoreValue = score;
          await isar.highScores.put(existingHighScore);
        } else {
          await isar.highScores.put(existingHighScore);
        }
      } else {
        await isar.highScores.put(highScore);
      }
    });
    if (callback != null) {
      callback();
    }
  }

  Future<int?> getHighScoreValue() async {
    final highScore = await isar.highScores.where().findFirst();

    return highScore?.highScoreValue;
  }
}