Use enum for runtime (#92)

serverless.php

@@ -5,6 +5,7 @@
 use Bref\Context\Context;
 use Inverse\Termin\Config\ConfigParser;
 use Inverse\Termin\Container;
+use Inverse\Termin\Runtime;
 use Symfony\Component\Yaml\Yaml;
 
 require __DIR__.'/vendor/autoload.php';
@@ -16,7 +17,7 @@ public function handle($event, Context $context)
         $configLoader = new ConfigParser();
         $config = $configLoader->parse(Yaml::parseFile(__DIR__.'/config.yml'));
 
-        $container = new Container($config, 'serverless');
+        $container = new Container($config, Runtime::SERVERLESS);
 
         $termin = $container->getTermin();
         $termin->run($config->getSites());

src/Container.php

@@ -20,15 +20,15 @@ class Container extends Pimple
 {
     private const ROOT_DIR = __DIR__.'/../';
 
-    public function __construct(Config $config, string $runtime = 'normal')
+    public function __construct(Config $config, Runtime $runtime = Runtime::NORMAL)
     {
         parent::__construct();
 
         $this[NotifierInterface::class] = static fn () => (new NotifierFactory(new MultiNotifier()))->create($config);
 
         $this[LoggerInterface::class] = static function () use ($config, $runtime) {
             $logger = new Logger('termin');
-            if ($config->getLogToFile() || 'serverless' !== $runtime) {
+            if ($config->getLogToFile() || Runtime::SERVERLESS !== $runtime) {
                 $logger->pushHandler(new StreamHandler(self::ROOT_DIR.'var/log/app.log', $config->getLogLevel()));
             }
             $logger->pushHandler(new StreamHandler('php://stdout', $config->getLogLevel()));

src/Runtime.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Inverse\Termin;
+
+enum Runtime
+{
+    case SERVERLESS;
+    case NORMAL;
+}