Add DatabaseCredentials class and implement database picker question

src/Console/BackupDatabase.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Console;
+
+use App\Service\DatabaseManager;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\Question;
+
+class BackupDatabase extends Command
+{
+    protected static $defaultName = 'app:db:create';
+
+    public function __construct(
+        private DatabaseManager $db,
+    )
+    {
+        parent::__construct();
+    }
+
+    protected function configure(): void
+    {
+        $this->addArgument('name', InputArgument::OPTIONAL, 'Database name');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $question = $this->getHelper('question');
+
+        if (!$name = $input->getArgument('name')) {
+            $name = $question->ask($input, $output, new Question('Database name: '));
+        }
+
+        $this->db->createDatabase($name);
+
+        $output->writeln(sprintf('Database "%s" successfully created', $name));
+
+        return Command::SUCCESS;
+    }
+}