Created command to list domains

module/CLI/src/Command/Domain/ListDomainsCommand.php

@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shlinkio\Shlink\CLI\Command\Domain;
+
+use Shlinkio\Shlink\CLI\Util\ExitCodes;
+use Shlinkio\Shlink\CLI\Util\ShlinkTable;
+use Shlinkio\Shlink\Core\Domain\DomainServiceInterface;
+use Shlinkio\Shlink\Core\Entity\Domain;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+use function Functional\map;
+
+class ListDomainsCommand extends Command
+{
+    public const NAME = 'domain:list';
+
+    private DomainServiceInterface $domainService;
+    private string $defaultDomain;
+
+    public function __construct(DomainServiceInterface $domainService, string $defaultDomain)
+    {
+        parent::__construct();
+        $this->domainService = $domainService;
+        $this->defaultDomain = $defaultDomain;
+    }
+
+    protected function configure(): void
+    {
+        $this
+            ->setName(self::NAME)
+            ->setDescription('List all domains that have been ever used for some short URL');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): ?int
+    {
+        $regularDomains = $this->domainService->listDomainsWithout($this->defaultDomain);
+
+        ShlinkTable::fromOutput($output)->render(['Domain', 'Is default'], [
+            [$this->defaultDomain, 'Yes'],
+            ...map($regularDomains, fn (Domain $domain) => [$domain->getAuthority(), 'No']),
+        ]);
+
+        return ExitCodes::EXIT_SUCCESS;
+    }
+}