<?php
class LazyObject {
    public static function proxy(string $className, mixed $c = null) {
        if (!class_exists($className, true)) {
            throw new InvalidArgumentException("Class {$className} does not exist");
        }
        $reflector = new ReflectionClass($className);
        if (!$reflector->isInstantiable()) {
            throw new InvalidArgumentException("Class {$className} cannot be instantiated");
        }
		$constructor = $reflector->getConstructor();

        // If the class has a constructor with required parameters
        if ($constructor && $constructor->getNumberOfRequiredParameters() > 0) {
			$initializer = static function (mixed $i) use ($className) {
				return new $className($i);
			};
			return $reflector->newLazyProxy(fn() => $initializer($c));
		} else {
			$initializer = static function () use ($className) {
				return new $className();
			};
			return $reflector->newLazyProxy($initializer);
		}
    }
}