<?php
require_once(APPPATH.'/libraries/LayoutParser'.EXT);
class Layout {

    protected static $layoutParser;

    protected $layoutBlock;
    protected $controllerObject;
    protected $controllerActionName;

    public function _setControllerActionName($controllerActionName = ''){
        $controllerActionName = preg_replace('/\//', '_', $controllerActionName);
        $controllerActionName = trim($controllerActionName , '_');
        $this->controllerActionName = $controllerActionName;
        echo var_dump($controllerActionName);
        $this->layoutBlock = &self::$layoutParser->getActionLayout( $this->controllerActionName );
    }

    public function _getControllerLayout(){
        return var_dump($this->layoutBlock);
    }

    public function _getTemplate(){
        return $this->layoutBlock['template'];
    }

    public function _getChildController($childName){
        if(!is_array($this->layoutBlock['child_blocks']))
            return null;

        $childLayout = null;
        foreach( $this->layoutBlock['child_blocks'] as &$val ){
            if( strcmp($val['name'], $childName) === 0){
                $childLayout = &$val;
                break;
            }
        }

        if($childLayout === null)
            return null;

        require_once APPPATH . 'controllers/' . strtolower($childLayout['controller']) . EXT;
        $childController = New $childLayout['controller']();
        $childController->_setLayout($childLayout);

        return $childController;
    }

    public function _appendChild($childName){
        $childController = &$this->_getChildController($childName);
        if($childController !== null)
            $childController->_doAction();
    }

    public function _doAction(){
        $this->layoutBlock;
        $this->{ $this->layoutBlock['action'] }();
    }

    public function __construct(&$controllerObject = NULL , &$layout = NULL){
        if($layout === NULL){
            self::$layoutParser = LayoutParser::getInstance();
            $this->layoutBlock = &self::$layoutParser->getLayout();
        }
        else {
            $this->layoutBlock = &$layout;
        }

        if($controllerObject !== NULL){
            $this->controllerObject = $controllerObject;
        }
    }

    public function _setLayout(&$layout){
        $this->layoutBlock = &$layout;
    }

    public function _initControllerLayout(){

    }
}

?>