<?

/**
 * 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");
        }
    }

}