Implemented action factory analogue to trigger factory

app/Rules/Actions/ActionFactory.php

@@ -0,0 +1,69 @@
+<?php
+declare(strict_types = 1);
+/**
+ * ActionFactory.php
+ * Copyright (C) 2016 Robert Horlings
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace FireflyIII\Rules\Actions;
+
+use FireflyIII\Models\RuleAction;
+use FireflyIII\Models\TransactionJournal;
+use FireflyIII\Support\Domain;
+
+/**
+ * Interface ActionInterface
+ *
+ * @package FireflyIII\Rules\Actions
+ */
+class ActionFactory
+{
+    protected static $actionTypes = null;
+    
+    /**
+     * Returns the class name to be used for actions with the given name
+     * @param string $actionType
+     * @return ActionInterface
+     */
+    public static function getActionClass(string $actionType): string {
+        $actionTypes = self::getActionTypes();
+        
+        if (!array_key_exists($actionType, $actionTypes)) {
+            abort(500, 'No such action exists ("' . $actionType . '").');
+        }
+        
+        $class = $actionTypes[$actionType];
+        if (!class_exists($class)) {
+            abort(500, 'Could not instantiate class for rule action type "' . $actionType . '" (' . $class . ').');
+        }
+        
+        return $class;
+    }
+    
+    /**
+     * Returns the action for the given type and journal
+     * @param RuleAction $action
+     * @param TransactionJournal $journal
+     * @return ActionInterface
+     */
+    public static function getAction(RuleAction $action, TransactionJournal $journal): ActionInterface {
+        $actionType = $action->action_type;
+        $class = self::getActionClass($actionType);
+        
+        return new $class($action, $journal);
+    }
+    
+    /**
+     * Returns a map with actiontypes, mapped to the class representing that type
+     */
+    protected static function getActionTypes() {
+        if( !self::$actionTypes ) {
+            self::$actionTypes = Domain::getRuleActions();
+        }
+        
+        return self::$actionTypes;
+    }
+}