<?

/**
 * MY_Template
 * 
 * @package MY_Template
 * @author mk
 * @copyright 2011
 * @version 1.0
 * @access public
 */
class MY_Template {
	
	private $CI;
	
	private $layout;
	private $partials = array();
	private $destinations = array();
	
	function __construct() {
		$this->CI =& get_instance();
	}
	
	/**
	 * MY_Template::set_layout()
	 * 
	 * Define el view para el layout
	 * 
	 * @param string $layout
	 * @return void
	 */
	public function set_layout($layout) {
		$this->layout = $layout;
	}
	
	/**
	 * MY_Template::set_view()
	 * 
	 * Escribir un View en una zona del template
	 * 
	 * @param string $destination
	 * @param string $view_name
	 * @param array $view_data
	 * @return void
	 */
	public function set_view($destination = null, $view_name = null, $view_data = array()) {
		if (isset($destination) && isset($view_name)) {
			$this->partials[] = array(
				"type" => "view",
				"destination" => $destination,
				"view_name" => $view_name,
				"view_data" => $view_data
			);
		} else {
			show_error("Destination y View Name deben ser especificados");
		}
	}
	
	/**
	 * MY_Template::set_value()
	 * 
	 * Escribir un valor en una zona del template
	 * 
	 * @param string $destination
	 * @param mixed $value
	 * @return void
	 */
	public function set_value($destination = null, $value = null) {
		if (isset($destination) && isset($value)) {
			$this->partials[] = array(
				"type" => "value",
				"destination" => $destination,
				"value" => $value
			);
		} else {
			show_error("Destination y Value deben ser especificados");
		}
	}
	
	/**
	 * MY_Template::render()
	 * 
	 * Renderear el layout con todos los Views y valores escritos
	 * 
	 * @param bool $return
	 * @return void
	 */
	public function render($return = false) {
		foreach ($this->partials as $partial) {
			switch ($partial['type']) {
				case "view":
					$this->destinations[$partial['destination']] = $this->CI->load->view($partial['view_name'], $partial['view_data'], true);
					break;
				case "value":
					$this->destinations[$partial['destination']] = $partial['value'];
					break;
			}
		}
		if ($return) {
			return($this->CI->load->view($this->layout, array(), true));
		} else {
			$this->CI->load->view($this->layout);
		}
	}
	
	/**
	 * MY_Template::get()
	 * 
	 * Obtener un View rendereado o un valor para escribirlo en el layout
	 * 
	 * @param string $destination
	 * @return
	 */
	public function get($destination) {
		if (isset($this->destinations[$destination])) {
			return($this->destinations[$destination]);
		} else {
			return("");
		}
	}
	
	public function __get($destination) {
		if (isset($this->destinations[$destination])) {
			return($this->destinations[$destination]);
		} else {
			return("");
		}
	}
	
	public function __set($destination = null, $value = null) {
		if (isset($destination) && isset($value)) {
			$this->destinations[$destination] = $value;
		} else {
			show_error("Destination y Value deben ser especificados");
		}
	}
	
}