<?php

declare (strict_types=1);
namespace FormEnhancerDeps\Invoker\Reflection;

use Closure;
use FormEnhancerDeps\Invoker\Exception\NotCallableException;
use ReflectionException;
use ReflectionFunction;
use ReflectionFunctionAbstract;
use ReflectionMethod;
/**
 * Create a reflection object from a callable or a callable-like.
 *
 * @internal
 */
class CallableReflection
{
    /**
     * @param callable|array|string $callable Can be a callable or a callable-like.
     * @throws NotCallableException|ReflectionException
     */
    public static function create($callable): ReflectionFunctionAbstract
    {
        // Closure
        if ($callable instanceof Closure) {
            return new ReflectionFunction($callable);
        }
        // Array callable
        if (is_array($callable)) {
            [$class, $method] = $callable;
            if (!method_exists($class, $method)) {
                throw NotCallableException::fromInvalidCallable($callable);
            }
            return new ReflectionMethod($class, $method);
        }
        // Callable object (i.e. implementing __invoke())
        if (is_object($callable) && method_exists($callable, '__invoke')) {
            return new ReflectionMethod($callable, '__invoke');
        }
        // Standard function
        if (is_string($callable) && function_exists($callable)) {
            return new ReflectionFunction($callable);
        }
        throw new NotCallableException(sprintf('%s is not a callable', is_string($callable) ? $callable : 'Instance of ' . get_class($callable)));
    }
}
