<?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\DomCrawler\Field;

/**

 * FileFormField represents a file form field (an HTML file input tag).

 *

 * @author Fabien Potencier <fabien@symfony.com>

 *

 * @api

 */

class FileFormField extends FormField

{

    /**

     * Sets the PHP error code associated with the field.

     *

     * @param integer $error The error code (one of UPLOAD_ERR_INI_SIZE, UPLOAD_ERR_FORM_SIZE, UPLOAD_ERR_PARTIAL, UPLOAD_ERR_NO_FILE, UPLOAD_ERR_NO_TMP_DIR, UPLOAD_ERR_CANT_WRITE, or UPLOAD_ERR_EXTENSION)

     *

     * @throws \InvalidArgumentException When error code doesn't exist

     */

    public function setErrorCode($error)

    {

        $codes = array(UPLOAD_ERR_INI_SIZE, UPLOAD_ERR_FORM_SIZE, UPLOAD_ERR_PARTIAL, UPLOAD_ERR_NO_FILE, UPLOAD_ERR_NO_TMP_DIR, UPLOAD_ERR_CANT_WRITE, UPLOAD_ERR_EXTENSION);

        if (!in_array($error, $codes)) {

            throw new \InvalidArgumentException(sprintf('The error code %s is not valid.', $error));

        }

        $this->value = array('name' => '', 'type' => '', 'tmp_name' => '', 'error' => $error, 'size' => 0);

    }

    /**

     * Sets the value of the field.

     *

     * @param string $value The value of the field

     *

     * @api

     */

    public function upload($value)

    {

        $this->setValue($value);

    }

    /**

     * Sets the value of the field.

     *

     * @param string $value The value of the field

     */

    public function setValue($value)

    {

        if (null !== $value && is_readable($value)) {

            $error = UPLOAD_ERR_OK;

            $size = filesize($value);

            $name = basename($value);

            // copy to a tmp location

            $tmp = tempnam(sys_get_temp_dir(), 'upload');

            unlink($tmp);

            copy($value, $tmp);

            $value = $tmp;

        } else {

            $error = UPLOAD_ERR_NO_FILE;

            $size = 0;

            $name = '';

            $value = '';

        }

        $this->value = array('name' => $name, 'type' => '', 'tmp_name' => $value, 'error' => $error, 'size' => $size);

    }

    /**

     * Initializes the form field.

     *

     * @throws \LogicException When node type is incorrect

     */

    protected function initialize()

    {

        if ('input' != $this->node->nodeName) {

            throw new \LogicException(sprintf('A FileFormField can only be created from an input tag (%s given).', $this->node->nodeName));

        }

        if ('file' != $this->node->getAttribute('type')) {

            throw new \LogicException(sprintf('A FileFormField can only be created from an input tag with a type of file (given type is %s).', $this->node->getAttribute('type')));

        }

        $this->setValue(null);

    }

}