import 'package:libac_flutter/nbt/Stream.dart';

import 'UUID.dart';

class NbtUUID {
  final int MSB;
  final int LSB;

  const NbtUUID(this.MSB, this.LSB);

  static final NbtUUID ZERO = NbtUUID.fromUUID(UUID.ZERO);

  factory NbtUUID.fromUUID(UUID id) {
    ByteLayer layer = ByteLayer();
    layer.writeBytes(id.getBytes());
    layer.resetPosition();

    int MSB = layer.readLong();
    int LSB = layer.readLong();

    return NbtUUID(MSB, LSB);
  }

  /// Returns the Most Significant Bits (MSB) long value of the UUID.
  int getMostSignificantBits() => MSB;

  /// Returns the Least Significant Bits (LSB) long value of the UUID.
  int getLeastSignificantBits() => LSB;

  UUID toUUID() {
    ByteLayer layer = ByteLayer();
    layer.writeLong(MSB);
    layer.writeLong(LSB);

    return UUID(layer.readBytes(16));
  }

  @override
  String toString() {
    return toUUID().toString();
  }
}