Created cli-specific services config file

config/autoload/services.global.php

@@ -1,5 +1,4 @@
 <?php
-use Shlinkio\Shlink\CLI;
 use Acelaya\UrlShortener\Factory\CacheFactory;
 use Acelaya\UrlShortener\Factory\EntityManagerFactory;
 use Acelaya\UrlShortener\Middleware;
@@ -7,7 +6,6 @@ use Acelaya\UrlShortener\Service;
 use Acelaya\ZsmAnnotatedServices\Factory\V3\AnnotatedFactory;
 use Doctrine\Common\Cache\Cache;
 use Doctrine\ORM\EntityManager;
-use Symfony\Component\Console;
 use Zend\Expressive;
 use Zend\Expressive\Container;
 use Zend\Expressive\Helper;
@@ -21,7 +19,6 @@ return [
     'services' => [
         'factories' => [
             Expressive\Application::class => Container\ApplicationFactory::class,
-            Console\Application::class => CLI\Factory\ApplicationFactory::class,
 
             // Url helpers
             Helper\UrlHelper::class => Helper\UrlHelperFactory::class,
@@ -42,12 +39,6 @@ return [
             Service\ShortUrlService::class => AnnotatedFactory::class,
             Cache::class => CacheFactory::class,
 
-            // Cli commands
-            CLI\Command\GenerateShortcodeCommand::class => AnnotatedFactory::class,
-            CLI\Command\ResolveUrlCommand::class => AnnotatedFactory::class,
-            CLI\Command\ListShortcodesCommand::class => AnnotatedFactory::class,
-            CLI\Command\GetVisitsCommand::class => AnnotatedFactory::class,
-
             // Middleware
             Middleware\Routable\RedirectMiddleware::class => AnnotatedFactory::class,
         ],
@@ -56,7 +47,7 @@ return [
             'httpClient' => GuzzleHttp\Client::class,
             Router\RouterInterface::class => Router\FastRouteRouter::class,
             AnnotatedFactory::CACHE_SERVICE => Cache::class,
-        ]
+        ],
     ],
 
 ];

module/CLI/config/services.config.php

@@ -0,0 +1,20 @@
+<?php
+use Acelaya\UrlShortener\Middleware;
+use Acelaya\ZsmAnnotatedServices\Factory\V3\AnnotatedFactory;
+use Shlinkio\Shlink\CLI;
+use Symfony\Component\Console;
+
+return [
+
+    'services' => [
+        'factories' => [
+            Console\Application::class => CLI\Factory\ApplicationFactory::class,
+
+            CLI\Command\GenerateShortcodeCommand::class => AnnotatedFactory::class,
+            CLI\Command\ResolveUrlCommand::class => AnnotatedFactory::class,
+            CLI\Command\ListShortcodesCommand::class => AnnotatedFactory::class,
+            CLI\Command\GetVisitsCommand::class => AnnotatedFactory::class,
+        ],
+    ],
+
+];

src/Service/UrlShortener.php

@@ -44,7 +44,7 @@ class UrlShortener implements UrlShortenerInterface
     ) {
         $this->httpClient = $httpClient;
         $this->em = $em;
-        $this->chars = $chars;
+        $this->chars = empty($chars) ? self::DEFAULT_CHARS : $chars;
     }
 
     /**