<?php
/**
 * patTemplate-function: Newsletter
 *
 * $Id$
 *
 * @package Wombat
 * @subpackage patTemplate
 * @author gERD Schaufelberger <gerd@php-tools.net>
 */

/**
 * patTemplate-function: Newsletter
 *
 * Allow to subcribe newsletter
 *
 * @version 0.1.1
 * @package Wombat
 * @subpackage patTemplate
 */
class patTemplate_Function_Newsletter extends patTemplate_Function
{
    /**
     * Name of the function
     * @var string
     */
    public $_name  =   'Newsletter';

    /**
     * Tell that this function has to be executed during runtime
     * @var string
     */
    public $_type = PATTEMPLATE_FUNCTION_RUNTIME;

    /**
     * Template Engine
     * @var patTemplate
     */
    private $tmpl;

    /**
     * Subscriber
     * @var WBDatasource_Newsletter_Subscriber
     */
    private $sub;

    /**
     * Mandator
     * @var WBMandator
     */
    private $mandator;

    /**
     * Call the function
     *
     * Simply show newsletter registration form, depending on current user
     *
     * @param array $params parameters of the function (= attributes of the tag)
     * @param string $content inside tag
     * @return string content to insert into the template
     */
    public function call($params, $content)
    {
        $this->tmpl =   WBClass::create('patTemplate');
        $paramsDef  =   array(
                                'tmpl'      =>  'default',
                                'class'     =>  '',
                                'mandator'  =>  '-1'

                            );
        $params     =   array_merge($paramsDef, $params);
        $this->tmpl->addGlobalVars($params);

        $this->mandator =   WBClass::create('WBMandator');
        if(!$this->hasMandatorNewsletter($params['mandator'])) {
            return $content;
        }

        $this->tmpl->addGlobalVar('mandator', $this->mandator->getId());
        $this->tmpl->addGlobalVars($this->mandator->get(), 'mandator_');

        $this->sub  =   WBClass::create('WBDatasource_Newsletter_Subscriber');
        $user       =   WBUser::getCurrent();

        $sub        =   false;
        if ($user->isAuthenticated()) {
            $this->sub->setUser($user);
            $this->tmpl->addGlobalVars($user->getData(), 'user_current_');
            $sub    =   $this->sub->loadByUser();
        }

        $suf    =   'New';
        if (!empty($sub)) {
            $this->tmpl->addGlobalVars($this->sub->get(), 'sub_');
            $suf    =   'Subriber';
            if (!$this->sub->hasMandator($params['mandator'])) {
                $suf    =   'Mandator';
            }
        }

        $this->tmpl->readTemplatesFromInput('Newsletter/Register/' . $params['tmpl'] . $suf. '.tmpl');
        return $this->tmpl->getParsedTemplate('snippet');
    }

    /**
     * Check If Mandator Has Newsletter
     *
     * @param string mandatorid
     * @return bool
     */
    private function hasMandatorNewsletter($manId)
    {
        if ('-1' == $manId) {
            return false;
        }
        $this->mandator->setId($manId);
        if ($this->mandator->hasNewsletter()) {
            return true;
        }

        return false;
    }
}