import 'dart:io';
import 'package:mysql1/mysql1.dart';
import 'package:mess_api/config.dart';

Future<void> testDbConnection() async {
    final settings = ConnectionSettings(
        host: DBConfig.dbHost,
        port: DBConfig.dbPort,
        user: DBConfig.dbUser,
        password: DBConfig.dbPassword,
        db: DBConfig.dbName,
    );

    final conn = await MySqlConnection.connect(settings);

    final results = await conn.query(
        'SELECT test_number FROM test_table LIMIT 1',
    );

    if (results.isEmpty) {
        throw Exception('DB CONNECT FAIL: no data');
    }

    final value = results.first['test_number'];

    if (value != 777) {
        throw Exception('DB CONNECT FAIL: value=$value');
    }

    print('DB CONNECT OK (777)');

    await conn.close();
}

void main() async {
    await testDbConnection();

    final server = await HttpServer.bind(
        InternetAddress.anyIPv4,
        AppConfig.port,
    );

    print('API server running on http://localhost:${AppConfig.port}');

    await for (HttpRequest request in server) {
        request.response
            ..statusCode = HttpStatus.ok
            ..write('ok')
            ..close();
    }
}