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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Debug\FatalErrorHandler;

use Symfony\Component\Debug\Exception\FatalErrorException;
use Symfony\Component\Debug\Exception\UndefinedMethodException;

/**
 * ErrorHandler for undefined methods.
 *
 * @author Grégoire Pineau <lyrixx@lyrixx.info>
 */
class UndefinedMethodFatalErrorHandler implements FatalErrorHandlerInterface
{
    /**
     * {@inheritdoc}
     */
    public function handleError(array $error, FatalErrorException $exception)
    {
        preg_match('/^Call to undefined method (.*)::(.*)$/', $error['message'], $matches);
        if (!$matches) {
            return;
        }

$className = $matches[1];
        $methodName = $matches[2];

$message = sprintf('Attempted to call method "%s" on class "%s" in %s line %d.', $methodName, $className, $error['file'], $error['line']);

$candidates = array();
        foreach (get_class_methods($className) as $definedMethodName) {
            $lev = levenshtein($methodName, $definedMethodName);
            if ($lev <= strlen($methodName) / 3 || false !== strpos($definedMethodName, $methodName)) {
                $candidates[] = $definedMethodName;
            }
        }

if ($candidates) {
            sort($candidates);
            $message .= sprintf(' Did you mean to call: "%s"?', implode('", "', $candidates));
        }

return new UndefinedMethodException($message, $exception);
    }
}

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