Add user creation and deletion

src/Console/DeleteUserCommand.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Console;
+
+use App\Service\DatabaseService;
+use Symfony\Component\Console\Attribute\AsCommand;
+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\ChoiceQuestion;
+use Symfony\Component\Console\Question\Question;
+
+#[AsCommand('user:delete')]
+class DeleteUserCommand extends Command
+{
+    public function __construct(
+        private readonly DatabaseService $db,
+    )
+    {
+        parent::__construct();
+    }
+
+    public function configure(): void
+    {
+        $this->addArgument('name', InputArgument::OPTIONAL, 'User name');
+        $this->addArgument('host', InputArgument::OPTIONAL, 'User host');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $question = $this->getHelper('question');
+        $host = $input->getArgument('host');
+
+        if (!$name = $input->getArgument('name')) {
+            $selectQuestion = new ChoiceQuestion('User name: ', array_map(
+                fn($user) => $user['name'],
+                $this->db->listUsers())
+            );
+            $name = $question->ask($input, $output, $selectQuestion);
+        }
+
+        $this->db->deleteUser($name, $host);
+
+        $output->writeln(sprintf('User "%s" successfully deleted', $name));
+
+        return Command::SUCCESS;
+    }
+}