<?php
/**
 * @package SP Page Builder
 * @author JoomShaper http://www.joomshaper.com
 * @copyright Copyright (c) 2010 - 2021 JoomShaper
 * @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 or later
 */
//no direct accees
defined ('_JEXEC') or die ('restricted aceess');

use Joomla\CMS\Filesystem\File;
use Joomla\CMS\Filesystem\Path;
use Joomla\CMS\Component\ComponentHelper;

abstract class SppagebuilderAddons {

  public function __construct( $addon )
  {

    if ( !$addon ) {
      return false;
    }

    $this->addon = $addon;
  }

  /**
	 * Check placeholder file path for each media image
	 */
	protected function get_image_placeholder($src)
  {
    $config = ComponentHelper::getParams('com_sppagebuilder');	
    $lazyload = $config->get('lazyloadimg', '0');
    
    if ($lazyload)
    { 
      $filename = basename($src);
      $mediaPath = 'media/com_sppagebuilder/placeholder';
      $basePath = JPATH_ROOT . '/'. $mediaPath . '/' .$filename;

      if (File::exists($basePath))
      {
        return $mediaPath . '/' . $filename;
      }
      else
      {
        return $config->get('lazyplaceholder', '');
      }
    }

		return false;
  }	
  
  /**
   * Get any valid image dimension
   * @return Array
   */
  protected function get_image_dimension($src)
	{
    $src = JPATH_BASE . Path::clean($src);
    if (!file_exists(($src)))
    {
      return [];
    }

		preg_match('/\__(.*?)\./', $src, $match);

		if (count($match) > 1)
		{
			$dimension = explode('x', $match[1]);
			return ['width="' . $dimension[0] . '"', 'height="' . $dimension[1] . '"'];
		}

		$validImageExtensions = ['jpg', 'jpeg', 'png'];
		$extension = strtolower(pathinfo($src, PATHINFO_EXTENSION));

		if (\in_array($extension, $validImageExtensions))
		{
			$dimension = \getimagesize($src);

			if (!empty($dimension))
			{
				return ['width="' . $dimension[0] . '"', 'height="' . $dimension[1] . '"'];
			}
		}

		return [];
  }
}
