<?php

/**
 * @package SP Page Builder
 * @author JoomShaper http://www.joomshaper.com
 * @copyright Copyright (c) 2010 - 2023 JoomShaper
 * @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 or later
 */
//no direct access
defined('_JEXEC') or die('Restricted access');

class SppagebuilderHelperImage
{

    public $height;
    public $width;
    private $src;

    public function __construct($src = '')
    {
        $this->src = $src;
        list($this->width, $this->height) = getimagesize($src);
    }

    public function getDimension()
    {
        return [$this->width, $this->height];
    }

    /**
     * Create thumb image with specifice height and width and with their ratio
     */
    public function createThumb($size, $destination, $base_name, $ext, $quality = 100)
    {

        $img = $this->createImageFromType($ext);

        if (count((array) $size) && $img != null)
        {
            $targetWidth = $size[0];
            $targetHeight = $size[1];

            $ratio_thumb = $targetWidth / $targetHeight;
            $ratio_original = $this->width / $this->height;

            if ($ratio_original >= $ratio_thumb)
            {
                $height = $this->height;
                $width = ceil(($height * $targetWidth) / $targetHeight);
                $x = ceil(($this->width - $width) / 2);
                $y = 0;
            }
            else
            {
                $width = $this->width;
                $height = ceil(($width * $targetHeight) / $targetWidth);
                $y = ceil(($this->height - $height) / 2);
                $x = 0;
            }

            $targetWidth = (int) $targetWidth;
            $targetHeight = (int) $targetHeight;

            $new = imagecreatetruecolor($targetWidth, $targetHeight);

            if ($ext == "gif" or $ext == "png")
            {
                imagecolortransparent($new, imagecolorallocatealpha($new, 0, 0, 0, 127));
                imagealphablending($new, false);
                imagesavealpha($new, true);
            }

            imagecopyresampled($new, $img, 0, 0, $x, $y, $targetWidth, $targetHeight, $width, $height);

            $dest = $destination . '/' . $base_name . '.' . $ext;

            $this->cloneImage($ext, $new, $dest, $quality);

            return true;
        }

        return false;
    }

    /**
     * Clone Image from original to destination source based on extension
     */
    private function cloneImage($ext, $new, $dest, $quality)
    {
        switch ($ext)
        {
            case 'bmp':
                imagewbmp($new, $dest);
                break;
            case 'webp':
                imagewebp($new, $dest, $quality);
                break;
            case 'gif':
                imagegif($new, $dest);
                break;
            case 'jpg':
                imagejpeg($new, $dest, $quality);
                break;
            case 'jpeg':
                imagejpeg($new, $dest, $quality);
                break;
            case 'png':
                imagepng($new, $dest, floor($quality / 11));
                break;
        }
    }

    /**
     * Create Image from their specific extension
     */
    private function createImageFromType($ext)
    {
        switch ($ext)
        {
            case 'bmp':
                $img = imagecreatefromwbmp($this->src);
                break;
            case 'webp':
                $img = imagecreatefromwebp($this->src);
                break;
            case 'gif':
                $img = imagecreatefromgif($this->src);
                break;
            case 'jpg':
                $img = imagecreatefromjpeg($this->src);
                break;
            case 'jpeg':
                $img = imagecreatefromjpeg($this->src);
                break;
            case 'png':
                $img = imagecreatefrompng($this->src);
                break;
        }
        return $img;
    }
}