add AbstractRegistry

Author: Machometec

src/Commands/AbstractRegistry.php

@@ -0,0 +1,76 @@
+<?php
+
+/**
+ * @author      Mohammed Moussaoui
+ * @copyright   Copyright (c) Mohammed Moussaoui. All rights reserved.
+ * @license     MIT License. For full license information see LICENSE file in the project root.
+ * @link        https://github.com/DevNet-Framework
+ */
+
+namespace DevNet\Cli\Commands;
+
+use DevNet\System\Collections\Enumerator;
+use DevNet\System\Collections\IEnumerable;
+use DevNet\System\Type;
+
+abstract class AbstractRegistry implements IEnumerable
+{
+    private Type $type;
+    private array $classes = [];
+    private array $objects = [];
+
+    abstract public static function getSingleton(): static;
+
+    public function __construct(string $type)
+    {
+        $this->type = new Type($type);
+    }
+
+    /**
+     * @param object|string $service object or class name of the injected service
+     */
+    public function set(string $name, $service): void
+    {
+        if (is_string($service)) {
+            $this->classes[$name] = $service;
+        } else if (is_object($service)) {
+            if ($this->type->isTypeOf($service)) {
+                $this->objects[$name] = $service;
+            }
+        }
+    }
+
+    public function get(string $name): ?object
+    {
+        $object = $this->objects[$name] ?? null;
+        if ($object) {
+            return $object;
+        }
+
+        $class = $this->classes[$name] ?? '';
+        if (class_exists($class)) {
+            $object = new $class();
+            if ($this->type->isTypeOf($object)) {
+                $this->objects[$name] = $object;
+                return $object;
+            }
+        }
+
+        return null;
+    }
+
+    public function getIterator(): Enumerator
+    {
+        $names = array_keys($this->classes);
+        foreach ($names as $name) {
+            $this->get($name);
+        }
+
+        return new Enumerator($this->objects);
+    }
+
+    public static function register(string $name, string $class): void
+    {
+        static::getSingleton()->set($name, $class);
+    }
+}