<?php

/**
 * This file is part of the Kdyby (http://www.kdyby.org)
 *
 * Copyright (c) 2008, 2011 Filip Procházka ([email protected])
 *
 * @license http://www.kdyby.org/license
 */

use Kdyby;
use Kdyby\Browser;
use Nette;
use Nette\Utils\Strings;



/**
 * @author Filip Procházka <[email protected]>
 *
 * @property-read \Kdyby\Browser\BrowserSession $session
 */
class ExampleWeb extends Nette\Object
{

    /** @var \Nette\Http\SessionSection */
    private $httpSession;

    /** @var array */
    private $credentials = array(
        'username' => NULL,
        'password' => NULL,
    );



    /**
     * @param \Nette\Http\SessionSection $session
     * @param array $credentials
     */
    public function __construct(Nette\Http\SessionSection $session, array $credentials)
    {
        $this->httpSession = $session;
        $this->credentials = $credentials;
    }



    /**
     * @return \Kdyby\Browser\BrowserSession
     */
    public function getSession()
    {
        if (empty($this->httpSession->example)) {
            $browser = new Browser\WebBrowser;
            $browser->setName($_SERVER['HTTP_USER_AGENT']);
            $this->httpSession->example = $browser->createSession();
        }

        return $this->httpSession->example;
    }



    /**
     * @return \Kdyby\Browser\WebPage
     */
    public function getLastPage()
    {
        return $this->getSession()->getLastPage();
    }



    /**
     * @return boolean
     */
    public function login()
    {
        $page = $this->getSession()->open('http://www.example.com/login/');
        $form = $page->findForm('div#col-content div.form div.content form');

        $form->setValues(array(
            'login-username' => $this->credentials['username'],
            'login-password' => $this->credentials['password'],
            'login-stay-signed' => '1'
        ));

        return $this->isLoggedIn($page->submit($form));
    }



    /**
     * @param \Kdyby\Browser\WebPage $loggedIn
     *
     * @return boolean
     */
    public function isLoggedIn(Browser\WebPage $loggedIn = NULL)
    {
        if ($loggedIn === NULL) {
            if (!$loggedIn = $this->getLastPage()) {
                $loggedIn = $this->getSession()->open('http://www.example.com');
            }
        }

        $username = Strings::normalize(trim($loggedIn->findOne('#login-box table a')->textContent));
        return Strings::lower($username) === Strings::lower($this->credentials['username']);
    }

}