<?php
require_once 'class/resizer.php';

class ImageFS
{
    function getIconName($fileName, $width, $height, $force = false)
    {
        $width  = intval($width);
        $height = intval($height);
        $path_parts = pathinfo((string)$fileName);

        if (strpos($path_parts['basename'], '.') === false) {
            $iconName = $path_parts['basename'] . '_' . $width . ImageFS::getIconNameSeparator($force) . $height;
        } else {
            $extLen = strlen($path_parts['extension']);
            $name = substr($path_parts['basename'], 0, -($extLen + 1));
            $iconName = $name . '_' . $width . ImageFS::getIconNameSeparator($force) . $height . '.' . $path_parts['extension'];
        }
		return "{$path_parts['dirname']}/{$iconName}";
	}

    function getIconNameSeparator($force)
    {
     	if ($force) return 'X';
    	return 'x';
    }

	function getInfo($name)
	{
		$res = getimagesize($name);
		if ($res !== false) {
			$res['width'] = $res[0];
			$res['height'] = $res[1];
			$res['type'] = $res[2];
			$res['attr'] = $res[3];
		} else {
			$res = array();
		}
		return $res;
	}

    function resize($fileName, $iconWidth, $iconHeight, $force = false)
    {
        if (!is_file($fileName)) {
    	    return false;
        }

        $iconWidth  = (int)$iconWidth;
        $iconHeight = (int)$iconHeight;
		$force = (bool)$force;

		$img_info = ImageFS::getInfo($fileName);
		if (empty($img_info) ||
			(!$iconHeight && !$iconWidth) ||
			($iconWidth >= $img_info['width'] && $iconHeight >= $img_info['height']) ||
			($iconWidth == $img_info['width'] && $iconHeight == 0) ||
			($iconHeight == $img_info['height'] && $iconWidth == 0)
		) {
		    return $fileName;
		}

        $iconName = ImageFS::getIconName($fileName, $iconWidth, $iconHeight, $force);

        if (!is_file($iconName)) {
			$tempnamFile = tempnam('/tmp', 'rsz');
			if (copy($fileName, $tempnamFile)) {
//				$tempnamIcon = tempnam('/tmp', $iconName);
				$tempnamIcon = tempnam('/tmp', 'rsz2');
				 
				$resizer = new resizer($tempnamFile, $iconWidth, $iconHeight, $tempnamIcon);
				copy($tempnamIcon, $iconName);

				unlink($tempnamFile);
				unlink($tempnamIcon);
			}
        }

        return $iconName;
    }

	function resizeEx($fileName, $iconWidth, $iconHeight, $iconName, $force = false)
    {
        if (!is_file($fileName)) {
    	    return false;
        }

        $iconWidth  = (int)$iconWidth;
        $iconHeight = (int)$iconHeight;
		$force = (bool)$force;

		$img_info = ImageFS::getInfo($fileName);
		if (empty($img_info) ||
			(!$iconHeight && !$iconWidth) ||
			($iconWidth >= $img_info['width'] && $iconHeight >= $img_info['height']) ||
			($iconWidth == $img_info['width'] && $iconHeight == 0) ||
			($iconHeight == $img_info['height'] && $iconWidth == 0)
		) {
			copy($fileName, $iconName);
		    return $iconName;
		}

		if (!is_file($iconName)) {
			$tempnamFile = tempnam('/tmp', 'rsz');
			if (copy($fileName, $tempnamFile)) {
				$tempnamIcon = tempnam('/tmp', 'rsz2');
				 
				$resizer = new resizer($tempnamFile, $iconWidth, $iconHeight, $tempnamIcon);
				copy($tempnamIcon, $iconName);

				unlink($tempnamFile);
				unlink($tempnamIcon);
			}
        }

        return $iconName;
    }

	function delete($name)
	{
		ImageFS::delIcons($name);
		return unlink($name);
	}

	function delIcons($fullName)
	{
		$path_parts = pathinfo($fullName);
		$name = substr($path_parts['basename'], 0, -(strlen($path_parts['extension']) + 1));

		if (is_dir($path_parts['dirname'])) {
		    if ($dh = opendir($path_parts['dirname'])) {
		    	while (($file = readdir($dh)) !== false) {
					if (preg_match("/^{$name}_\d+[xX]\d+\.{$path_parts['extension']}$/", $file)) {
						unlink($path_parts['dirname'] . '/' . $file);
					}
		    	}
		    	closedir($dh);
		    }
		}

	    return true;
	}

}

function fck_image_fs($name, $width = 0, $height = 0, $force = false)
{
	$width  = intval($width);
    $height = intval($height);
	$iconName = ImageFS::getIconName($name, $width, $height, $force);
	$iconName = str_replace(WWW_PATH.'/fckfiles', BASE_URL.'/fckthumbs', $iconName);
	return $iconName;
}

function image_fs($name, $width = 0, $height = 0, $force = false)
{
    $width  = intval($width);
    $height = intval($height);
    if ($width || $height){
	    $name = ImageFS::resize($name, $width, $height, $force);
    }

    return $name;
}

function image_fs_full($name, $width = 0, $height = 0, $force = false)
{
	if ($width || $height) {
	    $iconName = ImageFS::resize($name, $width, $height, $force);
	} else {
		$iconName = $name;
	}
	$imgArr = ImageFS::getInfo($iconName);

	$out = ' src="' . $iconName . '" ';
	if ($imgArr['width']) {
		$out .= 'width="' . $imgArr['width'] . '" ';
	}

	if ($imgArr['height']){
		$out .= 'height="' . $imgArr['height'] . '" ';
	}
	return $out;
}