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<?php

namespace Knowhow\UserBundle\Services;

use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Core\User\UserInterface;
use Knowhow\UserBundle\Entity\User;

class UserProvider implements UserProviderInterface
{

    private $_user;
    private $_container;

    public function __construct($container)
    {
        $this->_user = null;
        $this->_container = $container;
    }

    public function loadUserByUsername($username)
    {
        $this->_user = $this->_container->get('user_entity');
        $this->_user->findByUsername($username);

        if (!$this->_user->isHydrated()) {
            throw new UsernameNotFoundException('Username not found!');
        }

        return $this->_user;
    }

    public function loadUser(UserInterface $user)
    {
        if (empty($this->_user)) {
            $this->_user = new User();
        }
        return $this->_user;
    }

    public function supportsClass($class)
    {
        return $class == 'Knowhow\UserBundle\Entity\User';
    }

}