🚀 مُصادَق: الإطلاق الأولي للنظام المتكامل

app/Core/Container.php

@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Core;
+
+use Exception;
+use ReflectionClass;
+use ReflectionNamedType;
+
+final class Container
+{
+    private array $instances = [];
+
+    public function set(string $id, mixed $concrete): void
+    {
+        $this->instances[$id] = $concrete;
+    }
+
+    public function get(string $id): mixed
+    {
+        if (isset($this->instances[$id])) {
+            if ($this->instances[$id] instanceof \Closure) {
+                $this->instances[$id] = ($this->instances[$id])($this);
+            }
+            return $this->instances[$id];
+        }
+
+        return $this->resolve($id);
+    }
+
+    public function resolve(string $id): mixed
+    {
+        if (!class_exists($id)) {
+            throw new Exception("Class {$id} cannot be resolved.");
+        }
+
+        $reflection = new ReflectionClass($id);
+
+        if (!$reflection->isInstantiable()) {
+            throw new Exception("Class {$id} is not instantiable.");
+        }
+
+        $constructor = $reflection->getConstructor();
+
+        if (is_null($constructor)) {
+            return new $id();
+        }
+
+        $parameters = $constructor->getParameters();
+        $dependencies = [];
+
+        foreach ($parameters as $parameter) {
+            $type = $parameter->getType();
+
+            if (!$type instanceof ReflectionNamedType || $type->isBuiltin()) {
+                if ($parameter->isDefaultValueAvailable()) {
+                    $dependencies[] = $parameter->getDefaultValue();
+                    continue;
+                }
+                throw new Exception("Unable to resolve parameter '{$parameter->getName()}' in class {$id}");
+            }
+
+            $dependencies[] = $this->get($type->getName());
+        }
+
+        $instance = $reflection->newInstanceArgs($dependencies);
+        $this->instances[$id] = $instance;
+
+        return $instance;
+    }
+}