<?php

namespace Httpcb;

use Httpcb\OAuth\UserData\UserDataInterface;
use Phalcon\Mvc\User\Component;
use App\Model\Data\User;

class Auth extends Component
{
    /**
     * @var string
     */
    protected $_session_key = 'auth';

    /**
     * Login using email/user + password combination.
     *
     * @param string $email_username
     * @param string $password
     * @return bool
     */
    public function login($email_username, $password)
    {
        // Look for a user with this username/email.
        $user = User::findFirstByUsernameOrEmail($email_username);

        if ($user) {
            // Verify password
            $hash = $user->getPassword();
            if (strlen($hash) > 1 && $this->security->checkHash($password, $hash)) {

                $this->setIdentity($user->getId());

                $this->eventsManager->fire('auth:onLogin', $this, 'password');

                return true;
            }
        }
        return false;
    }

    /**
     * Login using OAuth
     *
     * @param UserDataInterface $data
     * @return bool|\Phalcon\Mvc\Model\MessageInterface[]
     */
    public function loginOauth(UserDataInterface $data)
    {
        $user = User::findFirstByOAuthID($data);

        if (!$user) {
            // Did not find any user. create him.
            $user = User::createFromOAuthData($data);

            if ($user->save() === false) {
                return $user->getMessages();
            }
        }

        $this->setIdentity($user->getId());

        $this->eventsManager->fire('auth:onLogin', $this,
            "OAuth {$data->getProvider()}");

        return true;
    }

    /**
     * @param $identity
     * @return Auth
     */
    public function setIdentity($identity)
    {
        $this->session->set($this->_session_key, $identity);
        return $this;
    }

    /**
     * return \Model\Data\User
     */
    public function getIdentity()
    {
        $id = $this->session->get($this->_session_key);

        if ($id !== null) {
            return User::findFirst($id);
        }
        return null;
    }

    /**
     * return \Model\Data\User
     */
    public function getUser()
    {
        if ($this->hasIdentity()) {

            $id = $this->session->get($this->_session_key);

            return User::findFirst($id);
        }
        return null;
    }

    public function hasIdentity()
    {
        return $this->getIdentity() !== NULL;
    }


    /**
     * Clears the identity information.
     *
     * @return Auth
     */
    public function clearIdentity()
    {
        $this->session->remove($this->_session_key);
        return $this;
    }
}