<?php

/**

 * Spawn Framework

 *

 * Front controller

 *

 * @author  Paweł Makowski

 * @copyright (c) 2010-2014 Paweł Makowski

 * @license http://spawnframework.com/license New BSD License

 */

namespace Spawn;

final class Spawn

{

    /**

     * @var \Spawn\Loader

     */

    public $loader;



    /**

     * @var \Spawn\Router

     */

    public $router;



    /**

     * default action

     * @var string

     */

    public $action;



    /**

     * default controller

     * @var string

     */

    public $controller;



    /*

    * @var string

    */

    public static $controllerSeparator = '-';



    /**

     * load bootstrap.php

     */

    public function bootstrap($di)

    {

        $bootstrap = new \Bootstrap($di);

        $bootstrap->start();

    }



    /**

     * load page

     */

    public function init()

    {

        ob_start();

        try{

        	$di = new DI;

        	$this -> event  = new Event($di);        	           

            $firewall = new \Spawn\Firewall($di);            

            $di->set('event', $this->event);

            $di->set('firewall', $firewall);

            $this -> bootstrap($di);



            $this -> event  -> run('Spawn.Ready') -> delete('Spawn.Ready');



            register_shutdown_function( array($this, 'shutdown') );



            $uri = new Request\Uri();

            $uri -> initPath() -> initArgs();

            $controller_core = $uri->param(0, $this -> controller);

            $controller = '\Controller\\' .str_replace(' ', '\\',ucwords(str_replace(self::$controllerSeparator, ' ', $controller_core)));

            $action     = $uri->param(1, $this -> action ).'Action';



            if( !class_exists($controller) or (class_exists($controller) && !method_exists($controller, $action )) ){

                $controller_core = $controller_core . self::$controllerSeparator . $this->controller;

                $controller = $controller.'\\'.$this->controller;

            }



            if( !class_exists($controller) or (class_exists($controller) && !method_exists($controller, $action )) ){

                $this -> router -> init( $uri );

                $uri = $this -> router -> getUri();

                $controller = '\Controller\\' . str_replace(' ', '\\', ucwords(str_replace(self::$controllerSeparator, ' ',  $this -> router -> getController())));

                $action = $this -> router -> getAction() . 'Action';

            }else{

                $uri -> setParam(0, $controller_core ) -> setParam(1, $uri->param(1, $this -> action ) );

            }



            if( !class_exists($controller) or (class_exists($controller) && !method_exists($controller, $action )) ){

                self::error404();

            }

            $firewall->start();

            $di->delete('firewall');

            $this -> event  -> run('Spawn.Execute') -> delete('Spawn.Execute');



            $controller =  new $controller;

            $request = new Request();

            $request -> uri = $uri;

            $di->set('request', $request);

            $controller->di = $di;

            $controller -> request = $request;

            $controller -> loader = $this -> loader;

            $controller -> event = $this -> event;

            $controller -> init();

            $controller -> $action( $request );

            $controller -> end();

            echo $controller -> response;

            $this -> event  -> run('Spawn.Finish') -> delete('Spawn.Finish');



        }catch(\Exception $error) {

            $this -> event  -> run('Spawn.Exception', $error) -> delete('Spawn.Exception');

            self::exceptionPage($error);

        }

    }

	

	/**

	*

	*/

    public function shutdown()

    {

        $this -> event -> run('Spawn.Shutdown');

    }

    

    /**

    *

    */

    public static function baseDetect()

    {

    	$script_name = $_SERVER['SCRIPT_NAME'];

        $sn = explode('/', $script_name);

        $index = current(array_reverse($sn));

        $base = str_replace($index,'',$script_name);

		

		if(strpos($base, '/')!==0) {

			throw new \Exception('Invalid script name');

		}

		

        if(Config::load('Uri')->get('base') != $base) {

            $config = include(ROOT_PATH.'Bin/Config/Uri.php');



            $config['base'] = $base;

            Config::load('Uri')->set('base',$base);



            $data = '<?php '.PHP_EOL.'return $config = '.var_export($config, true).';';

            file_put_contents(ROOT_PATH.'Bin/Config/Uri.php', $data);

            

            if(file_exists(ROOT_PATH.'.htaccess')) {

                $htaccess = file_get_contents(ROOT_PATH.'.htaccess');

                $htaccess = preg_replace('#RewriteBase (.*)#i', 'RewriteBase '.$base, $htaccess);

                file_put_contents(ROOT_PATH.'.htaccess', $htaccess);

            }

        }

    }





    /**

     *render 404 page

     */

    public static function error404()

    {

        $buff = ob_get_contents();

        ob_end_clean();

        $di = new DI;

        $di->event-> run('Spawn.404') -> delete('Spawn.404');

        $error = new \Controller\Error();

        $error -> indexAction();

        echo $error -> response;

        exit;

    }



    /**

     *

     */

    public static function exception( $severity, $message='', $filename=__FILE__, $lineno=__LINE__ )

    {

        if (0 == error_reporting()) {

            return;

        }

        

        if( class_exists('Log') ){

            Log::add($message.' File: '.$filename.' Line: '.$lineno);

        }

        

        if(is_object($severity)){

        	self::exceptionPage($severity);

        }else{

        	throw new \ErrorException($message, E_ERROR, $severity, $filename, $lineno);

        }

    }



    public static function exceptionPage($error)

    {

        $buff = ob_get_contents();

        ob_end_clean();

        if(DEV){

            include_once(ROOT_PATH . 'Application'. DIRECTORY_SEPARATOR .'View'. DIRECTORY_SEPARATOR .'Error'. DIRECTORY_SEPARATOR .'exception.phtml');

        }else{

            include_once(ROOT_PATH . 'Application'. DIRECTORY_SEPARATOR .'View'. DIRECTORY_SEPARATOR .'Error'. DIRECTORY_SEPARATOR .'warning.phtml');

        }

    }



}//spawn