/sample/core/classes/Vortice.php

<?php
/* 
 * Copyright (c) 2009, Carlos André Ferrari <[carlos@]ferrari.eti.br>; Luan Almeida <[luan@]luan.eti.br>
 * All rights reserved. 
 */

/**
 * Vortice core Class, template engine and framework super core
 *
 * @version	1
 * @package	Framework
 * @author	Carlos André Ferrari <carlos@ferrari.eti.br>
 * @author	Luan Almeida <luanlmd@gmail.com>
 */

class Vortice{

	/**
	* Variables to replace on the template render
	* @staticvar	array
	* @access		private
	*/

	private static $vars = array();
	
	/**
	* Templates loaded
	* @staticvar	array
	* @access		private
	*/

	private static $templates = array();
	
	/**
	* Flag to check if template controller was alread executed
	* @staticvar	bool
	* @access		private
	*/
	private static $masterload = false;
	
	/**
	* Template setted to render the page
	* @staticvar	string
	* @access		private
	*/

	private static $tpl = '';
	
	/**
	* Setted view to render the content generated on controller
	* @staticvar	string
	* @access		private
	*/

	private static $view = '';
	
	/**
	* Is the framework engine initialized?
	* @staticvar	boolean
	* @access		private
	*/

	private static $started = false;
	
	/**
	* Clean html white spaces before send it to the browser?
	* @staticvar	bool
	* @access		private
	*/

	private static $clean = false;
	
	/**
	* Aplication base uri
	* @staticvar	string
	* @access		private
	*/

	private static $rootsite = '/';
	
	/**
	* Aplication title
	* @vstaticar	array
	* @access		private
	*/

	private static $title = '';
	
	/**
	* Forget the template renderization?
	* @staticvar	bool
	* @access		private
	*/

	private static $notemplate = false;
	
	/**
	* Loaded html content
	* @staticvar	string
	* @access		protected
	*/

	protected static $contents = '';
	
	/**
	* Return data format
	* @staticvar	string
	* @static
	*/

	public static $rendermode = 'html';

	/**
	* Constructor
	* @return	void
	*/

	private function __construct(){

		throw (new Exception('Don\'t do that!!'));

	}


	/**
	* Start the template engine
	* @return	void
	*/

	public static function start(){

		if (!self::$started){ 

			self::$started = true;

			self::$title = apphash;

			self::$rootsite = virtualroot;
			self::setVar('title', self::$title);

			self::setView(controller . ':' . action);
			self::loadTemplates();
			ob_start();

		}

	}


	/**
	* Auto load the templates templates
	* @return	void
	* @access	private
	*/
	private static function loadTemplates(){
		$dir = root . 'app/webroot/templates';
		if (is_dir($dir) && $dh = opendir($dir))
			while (($file = readdir($dh)) !== false)
				if (preg_match('@^[0-9a-z\_]+$@', $file) && is_dir($dir . '/' . $file) && file_exists($dir . '/' . $file . '/template.php')) self::addTemplate($file);
	}

	/**
	* Disable the template rendering
	* @return	void
	*/
	public static function disableTemplate(){

		self::$notemplate = true;

	}
	
	/**
	* Set the render mode
	* @param	string	$mode	new render mode
	* @return	void
	*/
	public static function setRenderMode($mode){
		self::$rendermode = $mode;
	}

	/**
	* Manual add a template
	* @param	string	$nome	template name
	* @return	void
	*/

	public static function addTemplate($nome){
		if (!file_exists(root . 'app/webroot/templates/' . $nome . '/template.php')) throw(new TemplateNotFoundException($nome));

		self::$templates[$nome] = $nome;

		if (self::$tpl == '') self::$tpl = $nome;

	}

	
	/**
	* Set the response to be cleaned or not
	* @param	bool	$op		Clear the whitespaces before send to the browser?
	* @return	void
	*/

	public static function setClean($op = true){

		self::$clean = $op;

	}

	
	/**
	* Set internal var to be replaced on the template
	* @param	string	$nome	name
	* @param	string	$valor	value
	* @return	void
	*/

	public static function setVar($nome, $valor){

		self::$vars[$nome] = e($valor);

	}

	
	/**
	* Set the active template
	* @param	string	$nome	template name
	* @return	void
	*/

	public static function setTemplate($nome){

		if (!isset(self::$templates[$nome])) throw (new TemplateNotLoadedException($nome));

		self::$tpl = $nome;

	}

	
	/**
	* Set the active controller name
	* @param	string	$nome	controller name
	* @return	void
	*/

	public static function setController($nome){

		self::$controller = $nome;

	}

	
	/**
	* Set the active action
	* @param	string	$nome	action name
	* @return	void
	*/

	public static function setAction($action){

		self::$action = $action;

	}

	
	/**
	* get the requested view
	* @return	string
	*/

	public static function getView($prefix=''){

		if (strstr(self::$view, ':') !== false){

			list($c, $v) = explode(':', self::$view);

			return $c . '/' . $prefix . $v;

		}

		return controller . '/' . $prefix . self::$view;

	}

	
	/**
	* Set the view
	* @param	string	$nome	view name
	* @return	void
	*/

	public static function setView($nome){

		self::$view = $nome;

	}
	

	/**
	* Load the CSS files inside a dir
	* @param	string	$dir	path
	* @return	string
	*/	
	protected static function loadCssDir($dir){
		$tmp = array('mobile' => array(), 'screen' => array(), 'print' => array());

		if (is_dir(root . 'app/webroot/' . $dir)){

			if ($handle = opendir(root . 'app/webroot/' . $dir)) {

				while (false !== ($file = readdir($handle))) {
					$nome = explode('.', $file);

					if (count($nome) > 1 && $nome[count($nome)-1] == 'css'){
						$mtime = filemtime(root . 'app/webroot/' . $dir . '/' . $file);
						if (strstr($nome[0], 'mobile'))

							$tmp['mobile'][] = '<link href="' . virtualroot . $dir . '/' . $file . '?' . $mtime . '" rel="stylesheet" media="all" />';
						else

							if (strstr($nome[0], 'print'))

								$tmp['print'][] = '<link href="' . virtualroot . $dir . '/' . $file . '?' . $mtime . '" rel="stylesheet" media="print" />';

							else
								$tmp['screen'][] = '<link href="' . virtualroot . $dir . '/' . $file . '?' . $mtime . '" rel="stylesheet" media="screen" />';

					}

				}

				closedir($handle);

			}

		}
		if (mobile && count($tmp['mobile']) > 0){
			sort($tmp['mobile']);
			return implode("\r\n\t", $tmp['mobile']);
		}
		sort($tmp['screen']);
		return implode("\r\n\t", array_merge($tmp['screen'], $tmp['print']));
	}

	
	/**
	* Alias for geraCss method
	* @return	void
	*/
	protected static function makeCss(){
		return self::geraCss();
	}
	
	/**
	* Read and make all Link for the template css's
	* @return	void
	*/

	protected static function geraCss(){

		$pasta = self::$tpl;
		$tmp = self::loadCssDir('css');

		$tmp .= self::loadCssDir('templates/' . $pasta . '/css');
		return $tmp;

	}

	
	/**
	* Alias for geraJs method
	* @return	void
	*/
	protected static function makeJs(){
		return self::geraJs();
	}
	
	/**
	* Load the JS files inside a dir
	* @param	string	$dir	path
	* @return	string
	*/	
	protected static function loadJsDir($dir){
		$tmp = array();
		if (is_dir(root . 'app/webroot/' . $dir))

			if ($handle = opendir(root . 'app/webroot/' . $dir)){
				while (false !== ($file = readdir($handle))) {
					$mtime = filemtime(root . 'app/webroot/' . $dir . '/' . $file);

					if (preg_match('@\.js$@', $file)) $tmp[] = '<script type="text/javascript" src="' . self::$rootsite . $dir . '/' . $file . '?' . $mtime . '"></script>';

				}

				closedir($handle);

			}
		sort($tmp);
		return implode("\r\n\t", $tmp);
	}
	
	/**
	* Read and make all Link for the template scripts
	* @return	void
	*/

	protected static function geraJs(){
		$pasta = self::$tpl;
		$tmp = self::loadJsDir('js');

		$tmp .= self::loadJsDir('templates/' . $pasta . '/js');
		return $tmp;

	}

	
	/**
	* Merge the vars to the contents
	* @return	void
	*/

	protected static function mergeVars(){

		foreach (self::$vars as $k => $v){

			self::$contents = str_replace('<!--' . $k . '-->', $v, self::$contents);

			unset(self::$vars[$k]);

		}

	}

	
	/**
	* Execute everything and render the response
	* @return	string
	*/

	public static function render(){
		$middle = self::execute(false, action, controller);


		if (!self::$tpl)  self::$notemplate = true;

		else $pasta = self::$tpl;
		
		ob_start();	

		

		if (ajax){

			if (post){

				header('Content-type: application/json; charset=UTF-8');

				$json = Json::getInstance();

				return ($json->render());

			}
			self::$rendermode = 'content';

		}elseif (!self::$notemplate){
			if (mobile && file_exists(root . 'app/webroot/templates/' . $pasta . '/mobile.php'))
				include root . 'app/webroot/templates/' . $pasta . '/mobile.php';
			else 
				include root . 'app/webroot/templates/' . $pasta . '/template.php';

			self::setVar('csstags', self::geraCss());

			self::setVar('jstags', self::geraJs());

		}
		
		I18n::translate($middle);
		

		self::$contents = ob_get_clean();
		self::$contents = self::$notemplate ? $middle : preg_replace('@<!--conte(udo|nt)-->@', $middle, self::$contents);
		self::setVar('rootsite', self::$rootsite);		

		

		self::mergeVars();

		
		I18n::translate(self::$contents);
		

		if (self::$clean){

			self::$contents = preg_replace('@[[:space:]]{1,}@', ' ', self::$contents);

			self::$contents = preg_replace('@[ ]+<\/@', '</', self::$contents);

		}

		switch (self::$rendermode){
			case 'html':
				return self::$contents;
			case 'json':
				//header('Content-type: application/json');
				header('Content-type: text/plain');
				return json_encode(DAO::getAll());
			case 'serial':
				header('Content-type: text/plain');
				return serialize(DAO::getAll());
			case 'content':
				return $middle;
			default:
				$tmp_render = 'render_' . self::$rendermode;
				if (function_exists($tmp_render)) return $tmp_render();
				throw (new ResponseTypeNotFoundException('Formato de retorno inválido: ' . self::$rendermode));
		}

	}

	
	/**
	* Execute a request
	* @param	string	$view
	* @param	string	$action
	* @param	string	$controller	
	* @return	string
	*/

	public static function execute($view, $action, $controller){

		ob_start();
		
		if (!self::$masterload && class_exists('MasterController')){
			$obj = new MasterController();
			self::$masterload = true;
		}
		
		$c = $controller;
		$controller = camelize($controller).'Controller';
		if (class_exists($controller)){
			$obj = new $controller();
			$action = lcfirst(camelize($action));
			if (method_exists($obj, $action)) $obj->$action();

			else throw (new ActionNotFoundException($controller . '->' . $action . '()'));

		}else{
			// if its a static view
			$vpath = array(
				root . 'app/view/_static/' . (uri ? uri : 'index') . '.' . request_lang . '.php',
				root . 'app/view/_static/' . uri . '/index.' . request_lang . '.php',
				root . 'app/view/_static/' . (uri ? uri : 'index') . '.php',
				root . 'app/view/_static/' . uri . '/index.php'
			);
			foreach ($vpath as $vp)
				if (file_exists($vp)){
					include ($vp);
					return ob_get_clean();
				}
			throw (new ControllerNotFoundException($controller));
		} 
		
		$_ref = DAO::getAll();
		foreach ($_ref as $k => &$v)
			$$k = $v;
		unset($_ref);
				
		if (mobile){
			$v = $view ? $c . '/mobile.' . $view : self::getView('mobile.');
			if (file_exists(root . 'app/view/' . $v . '.php')){

				include root . 'app/view/' . $v . '.php';
				return ob_get_clean();
			}
		}
		
		$v = $view ? $c . '/' . $view : self::getView();
		$vpath = root . 'app/view/' . $v . '.php';
		
		if (file_exists($vpath)){
			include $vpath;
			return ob_get_clean();
		}
	}
}