import 'dart:math';
import 'dart:typed_data';
import 'package:argon2/argon2.dart';
import 'dart:io';
import 'package:postgres/postgres.dart';

String username = 'admin';
String password = 'password';

var r = Random.secure();
String randomSalt = String.fromCharCodes(List.generate(32, (index) => r.nextInt(33) + 89));
final salt = randomSalt.toBytesLatin1();

var parameters = Argon2Parameters(
  Argon2Parameters.ARGON2_i,
  salt,
  version: Argon2Parameters.ARGON2_VERSION_10,
  iterations: 2,
  memoryPowerOf2: 16,
);

final postgres = PostgreSQLConnection(
  Platform.environment['JOBLINK_POSTGRES_ADDRESS']!,
  int.parse(Platform.environment['JOBLINK_POSTGRES_PORT']!),
  'fbla',
  username: Platform.environment['JOBLINK_POSTGRES_USERNAME'],
  password: Platform.environment['JOBLINK_POSTGRES_PASSWORD'],
);

Future<void> main() async {
  await postgres.open();
  var argon2 = Argon2BytesGenerator();
  argon2.init(parameters);

  var passwordBytes = parameters.converter.convert(password);
  var result = Uint8List(32);
  argon2.generateBytes(passwordBytes, result);
  var resultHex = result.toHexString();

  postgres.query(
  '''
          INSERT INTO public.users (username, password_hash, salt) 
          VALUES ('$username', '$resultHex', '$randomSalt')
          '''
  );
}