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<?php

/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2012 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\Document;

use Joomla\CMS\Factory;

// phpcs:disable PSR1.Files.SideEffects
\defined('JPATH_PLATFORM') or die;
// phpcs:enable PSR1.Files.SideEffects

/**
 * ImageDocument class, provides an easy interface to output image data
 *
 * @since  3.0.0
 */
class ImageDocument extends Document
{
    /**
     * Class constructor
     *
     * @param   array  $options  Associative array of options
     *
     * @since   3.0.0
     */
    public function __construct($options = [])
    {
        parent::__construct($options);

        // Set mime type
        $this->_mime = 'image/png';

        // Set document type
        $this->_type = 'image';
    }

    /**
     * Render the document.
     *
     * @param   boolean  $cache   If true, cache the output
     * @param   array    $params  Associative array of attributes
     *
     * @return  string  The rendered data
     *
     * @since   3.0.0
     */
    public function render($cache = false, $params = [])
    {
        // Get the image type
        $type = Factory::getApplication()->getInput()->get('type', 'png');

        switch ($type) {
            case 'jpg':
            case 'jpeg':
                $this->_mime = 'image/jpeg';
                break;
            case 'gif':
                $this->_mime = 'image/gif';
                break;
            case 'png':
            default:
                $this->_mime = 'image/png';
                break;
        }

        $this->_charset = null;

        parent::render($cache, $params);

        return $this->getBuffer();
    }
}