Добавляет InterfaceCommand

src/CommandRegistry.php

@@ -45,10 +45,10 @@ public function getDevice(): InterfaceDevice
     }
 
     /**
-     * @param        $command
-     * @param string $type
+     * @param InterfaceCommand $command
+     * @param string           $type
      */
-    public function setCommand($command, string $type): void
+    public function setCommand(InterfaceCommand $command, string $type): void
     {
         $this->commandsRegistry[$type] = $command;
     }

src/InterfaceCommand.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Date: 21.02.18
+ * Time: 23:45
+ *
+ * @author    : Korotkov Danila <dankorot@gmail.com>
+ * @copyright Copyright (c) 2018, Korotkov Danila
+ * @license   http://www.gnu.org/licenses/gpl.html GNU GPLv3.0
+ */
+
+namespace Behavioral\Command;
+
+
+/**
+ * Interface InterfaceCommand
+ * @package Behavioral\Command
+ */
+interface InterfaceCommand
+{
+
+    /**
+     * @param InterfaceDevice $device
+     * @return mixed
+     */
+    public function execute(InterfaceDevice $device);
+}

src/ToggleCommand.php

@@ -14,7 +14,7 @@
  * Class ToggleCommand
  * @package Behavioral\Command
  */
-class ToggleCommand
+class ToggleCommand implements InterfaceCommand
 {
     /**
      * @return int

src/TurnOffCommand.php

@@ -14,7 +14,7 @@
  * Class TurnOffCommand
  * @package Behavioral\Command
  */
-class TurnOffCommand
+class TurnOffCommand implements InterfaceCommand
 {
 
     /**

src/TurnOnCommand.php

@@ -14,7 +14,7 @@
  * Class TurnOnCommand
  * @package Behavioral\Command
  */
-class TurnOnCommand
+class TurnOnCommand implements InterfaceCommand
 {
 
     /**