<?php
/**
 * c_pass_activation.class.php
 * Created by Komma Mediadesign.
 * Author: mike
 * Date: 4/26/13
 */

class Pass_Activation extends Controller
{
    /**
     *
     *	@var object Database Handler object for executing basic queries
     */
    private $_dbh;

    /**
     *
     *	@var array Activation data such as email, used and stored
     */
    private $_data = array('email'=>'','hash'=>'','stored'=>'','used'=>'');

    /**
     *
     *	@var array Userdata used within activation class
     */
    private $_userData = array();

    /**
     *
     *	@var string Activation hash which is stored in the database and is send to the user
     */
    private $_actHash = '';

    public function __construct()
    {
        parent::__construct();

        $this->_dbh = new DatabaseHandler();
        $this->_dbh->setTableName('kms_activation');
    }

    /*
     * Display to the user that the pass hass been send
     */
    public function isSend()
    {
        // Set Page Title
        $this->View->setData('page_title','Forgot pass | ' . SITE_NAME);
        $this->View->setData('body_id','body_login');
        $this->View->setData('background','<div id="background"><img src="' . IMAGE_ROOT . 'static/water.jpg" alt="Komma Mediadesign" /></div>');

        // Render the View
        $this->View->render('login/v_pass_send');
    }

    /*
     * Display to the user that the activation hash has been expired
     */
    public function expired()
    {
        // Set Page Title
        $this->View->setData('page_title','Activation expired | ' . SITE_NAME);
        $this->View->setData('body_id','body_login');
        $this->View->setData('background','<div id="background"><img src="' . IMAGE_ROOT . 'static/water.jpg" alt="Komma Mediadesign" /></div>');

        // Render the View
        $this->View->render('login/v_hash_expired');
    }


    /*
     * Get a hash from the database
     */
    public function get($hash = NULL)
    {
        if( ! empty($hash))
        {
            $this->_dbh->setData($this->_data);
            $this->_data = $this->_dbh->addRule('hash', $hash);
            if($data = $this->_dbh->select())
            {
                return $data;
            }
        }
        return false;
    }

    /*
     * Sends an activation mail to the user.
     */
    public function send()
    {
        // Get user from session
        $user = Session::get('activation_user');
        Session::destroy('activation_user');

        $this->_userData = $user;

        if( isset($this->_userData['email']) && ! empty($this->_userData['email']))
        {
            // Get/Set info
            $fromName = 'Komma Mediadesign';
            $from = 'info@komma-mediadesign.nl';
            $subject = 'Wachtwoord vergeten';

            // Create Url
            $this->_actHash = $this->createKey();
            $url = $this->createUrl($this->_actHash);

            // Message
            $str = 'U heeft in het Komma Management Systeem aangegeven dat u uw wachtwoord bent vergeten.<br />';
            $str .= 'Middels onderstaande link kunt opnieuw een wachtwoord kiezen.<br />';
            $str .= 'Deze link is de komende 24 uur geldig, dus zorgt dat u binnen deze tijd uw wachtwoord hebt gewijzigd.<br /><br />';
            $str .= '<a href="'.$url.'" target="_blank">link: '.$url.'</a><br /><br />';

            $msg = $str;

            // Send
            $mail = new PHPMailer(TRUE);
            try
            {
                $mail->AddAddress($this->_userData['email'], $this->_userData['user']);
                $mail->SetFrom($from, $fromName);
                $mail->Subject = $subject;
                $mail->MsgHTML($msg);
                $mail->Send();
            }
            catch (phpmailerException $e)
            {
                return FALSE;
            }

            // Update DB
            if($this->store())
            {
                $this->Functions->redirect(LANG_ROOT . URL_PAGE . '/' . $this->View->urls['isSend'] . '/');
            }
        }
        return FALSE;
    }


    /*
     * Validates the activation hash
     */
    public function validate()
    {
        if(defined('URL_SUB2'))
        {
            $actHash = URL_SUB2;
            // Check if we can find this hash in the database
            if($data = $this->get($actHash))
            {
                // This password has already been used
                if( ! empty($data['used']))
                {
                    $this->Functions->redirect(LANG_ROOT . URL_PAGE . '/' . $this->View->urls['expired'] . '/');
                }
                // Enter a new password
                else{
                    Session::set('pass_update_act_hash',$actHash);
                    $this->Functions->redirect(LANG_ROOT . $this->View->urls['pass_updater'] . '/');
                }
            }
        }
        return false;
    }

    /**
     * Creates a new ;
     *
     * @access private
     * @param
     * @return string
     */
    private function createKey()
    {
        $actHash = sha1($this->_userData['email'].'flipflop'.time());
        return $actHash;
    }

    /**
     * Creates a new activationurl
     *
     * @access private
     * @param
     * @return string
     */
    private function createUrl($actHash)
    {
        $url = BASE_ROOT . LANG_ROOT . $this->View->urls['pass_activation'] . '/validate/' . $actHash . '/';
        return $url;
    }

    /**
     * Stores the activationkey
     *
     * @access private
     * @param
     * @return null
     */
    private function store()
    {
        $data = array();
        $data['hash'] = $this->_actHash;
        $data['email'] = $this->_userData['email'];
        $data['stored'] = time();

        $this->_dbh->setData($data);
        if($this->_dbh->insert())
        {
            return TRUE;
        }
        return FALSE;
    }

    /**
     * Updates activation key when used
     *
     * @access public
     * @param string
     * @return boolean
     */
    public function update($actHash)
    {
        // value to update
        $this->_dbh->setData(array('used'=>time()));
        $this->_dbh->addRule('hash',$actHash);
        // update
        if($this->_dbh->update())
        {
            return TRUE;
        }
        return FALSE;
    }
}