<?php
/**
 * class.helper.php
 * @package gulliver.system
 *
 * ProcessMaker Open Source Edition
 * Copyright (C) 2004 - 2011 Colosa Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * For more information, contact Colosa Inc, 2566 Le Jeune Rd.,
 * Coral Gables, FL, 33134, USA, or email info@colosa.com.
 *
 */

/**
 * Class Helper
 * @author Erik Amaru Ortiz. <erik@colosa.com>
 * @package gulliver.system
 * @access public
 */

class Helper{
  public $content;
  public $gzipEnabled;
  public $minified;
  public $gzipModuleEnabled;
  public $contentType;

  function __construct(){
    $this->content      = '';
    $this->gzipEnabled  = true;
    $this->minified     = true;
    $this->gzipModuleEnabled = false;
    $this->contentType = 'text/html';
  }

  function addFile($file){
    if( is_file($file) )
      $this->content .= file_get_contents($file);
  }

  function addContent($content){
      $this->content = $content;
  }

  function setContentType($ctype){
    $this->contentType = $ctype;
  }

  function init(){
    header("Content-type: {$this->contentType}");
    header('Pragma: cache');
    header('Cache-Control: public');

    if( $this->gzipEnabled && extension_loaded('zlib') ){
      $this->gzipModuleEnabled = true;
      ob_start('ob_gzhandler');
    } else
      ob_start();
  }

  function minify() {
		if ($this->contentType != 'text/css') {
			G::LoadThirdParty('jsmin', 'jsmin');
			$this->content = JSMin::minify($this->content);
		}
	}

	function flush(){
    if( $this->minified )
      $this->minify();
    print($this->content);
    ob_end_flush();
  }

  function serve($type=null){
    if( isset($type) )
      $this->setContentType($ctype);
    $this->init();
    $this->flush();
  }
}
/*
function minify($buffer) {
  return G::removeComments($buffer);
}
*/