Add command to create database

src/Console/CreateDatabaseCommand.php

@@ -0,0 +1,43 @@
+<?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 CreateDatabaseCommand extends Command
+{
+    // the name of the command (the part after "bin/console")
+    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;
+    }
+}

src/Service/DatabaseManager.php

@@ -25,4 +25,17 @@ class DatabaseManager
 
         return $dbs;
     }
+
+    public function createDatabase(string $name)
+    {
+        $dbs = $this->listDatabases();
+        if(in_array($name, $dbs)) {
+            throw new \Exception(sprintf('Database "%s" already exists', $name));
+        }
+
+        $result = $this->conn->query(sprintf('CREATE DATABASE `%s`', $name));
+        if (!$result) {
+            throw new \Exception(sprintf('Database create error: %s', $this->conn->error));
+        }
+    }
 }