<?php
require_once 'presentation/template.php';
require_once 'presentation/url.php';

/**
 * @package Presentation
 */
class Component extends Template {

	var $logic;
	var $components;
	var $name; //components unique exemplar name
	var $url;
	
	function init() {
		parent::init();
		$this->components = array();
		$this->url = new URL();
	}

	/**
	 * Vajadusel võivad järglased siin teostada mingeid tegevusi, 
	 * kui on näiteks mingi inf vaja parentile edasi anda, 
	 * või ennast kohandada kuidagi parentiga.
	 */
	function set_parent(&$parent) {
		//var_dump($this->name);
		parent::set_parent($parent);
		if (isset($parent)) {
			$this->def_logic($parent->get_logic());
			$this->url->add_url($parent->url);
		}
	}

	
	/**
	 * Siin saab kasut reference'i, siis kasutame, muidu ei saa, siis ei kasuta :P
	 * 
	 * @return 
	 */
	function set_logic(&$logic) {
		//var_dump($logic);
		//var_dump($this);
		if (isset($logic))
			$this->logic =& $logic;
	}
	
	function def_logic(&$logic) {
		//var_dump($logic);
		//var_dump($this);
		if (!isset($this->logic))
			$this->logic =& $logic;
	}
	
	function &get_logic() {
		return $this->logic;
	}
	
	function get_url() {
		return $this->url;
	}
	
	function set_name($name) {
		//$this->url->remove($this->name);
		$this->name = $name;
		//$this->url->add($name)
		
	}
	
	function get_link($command = NULL) {
		$url = $this->url->get_copy();
		//var_dump($this->url);
		$url->add($this->name, $command);
		return $url->render();
	}
	
	/*
	function Component(&$logic, $template_file_name = NULL) {
		//$template_file_name = (isset($template_name) ? "$template_name.tpl.php" : NULL) ;
		$template_path = './templates/';
		parent::Template($template_file_name);//, $template_path);
		$this->set_logic($locic);
		//$this->set_parent($parent);
	}
	*/
	
	function &add_component(&$c, $container_place = NULL, $unique_exemplar_name = NULL, $template_name = NULL) {
		//echo "add_component";
		$c->set_parent($this);
		//$c->compose();
		
		if (!isset($unique_exemplar_name))
			$unique_exemplar_name = $c->get_unique_name(get_class($c)); 
		$c->set_name($unique_exemplar_name);
			//nimi muutub iga päringuga.. ebasoovitav variant
			//c annab ise endale nime.. juba parem parem
		//echo $unique_exemplar_name;
		//var_dump($unique_exemplar_name);
		$this->components[$c->name] =& $c;
		if (isset($container_place))
			$this->add_template($container_place, $c); //NB??
		else
			$this->set_over_template($c);
		return $c;
	}

	function &add_comp($class_name, $container_place = NULL, &$logic, $unique_exemplar_name = NULL, $template_name = NULL) {
		if (!$c = $this->get_comp($class_name, $template_name)) {
			echo 'tundmatu klass '.$class_name;
			return FALSE;
		}
		//var_dump($logic);
		//var_dump($c->logic);
		//composes kasutatakse $c-name, mille saab alles add_component-is
		//$c->name = $unique_exemplar_name; //väärtustame siis enne..
		//echo($c->name);
		//add_component kustsub välja add_template, mis teeb set_parent(), mis võtab parent'i logicu.
		//ja seda ma ei taha kui mul on logic siit sisse antud.
		$c->set_logic($logic);
		$c2 =& $this->add_component($c, $container_place, $unique_exemplar_name, $template_name);
		$c->compose();//?
		//die();
		return $c2;
		//return $this->add_component($c, $container_place, $unique_exemplar_name, $template_name);
		/*
		$c->compose();

		if (!isset($unique_exemplar_name))
			$unique_exemplar_name = $c->get_unique_name($class_name); 
			//nimi muutub iga päringuga.. ebasoovitav variant
			//c annab ise endale nime.. juba parem parem
		$this->components[$unique_exemplar_name] =& $c; 
		return $c;
		*/
	}

	function &get_comp($class_name, $template_name = NULL) {
		$path = './preslogic/';
		if (is_string($class_name) and file_exists($path."$class_name.comp.php")) {
			include_once $path."$class_name.comp.php";
		}else
			return NULL;
		$c =& new $class_name($template_name);
		return $c;
	}

	function compose() {
		//siin additakse alamkomponendid, ja antakse väärtused.
		//$this->add_comp('relationviewbox', 'topical', $relation, 'suhtekuva','relview');
	}

	function get_unique_name($base_name) {
		$name = $base_name.'_'.substr(md5((string)rand()), 0, 5);
		return $name;
	}

	function fetch($file_name) {
		//valmista ette midagi komponendi puus.. näiteks renderda lingid..
		//komponentide omavaheline info vahetus
		//üks variant on, et see tehakse samal hetkel kui komponente liidetakse-lahutatakse
		//kuid see teeb asja väga keeruliseks. lihtsam on teha puu valmis, ning alles siis
		//lasta komponentidel suhted klaarida.
		return parent::fetch($file_name);
	}

}

?>