<?php

namespace Workshop\Step07;


/**
 * @entity
 */
class Auth extends SimpleEntity
{
	/**
	 * @OneToOne(targetEntity="Workshop\Step07\Person", inversedBy="auth")
	 * @JoinColumn(name="person_id", referencedColumnName="id")
	 */
	private $person;

	/** @Column(length=64) */
	private $username;

	/** @Column(length=64) */
	private $hash;


	public function setUsername($username)
	{
		if (!$username = self::filterUsername($username)) {
			throw new \Exception(__('Username is a required entry.'));
		}
		$this->username = $username;
		return $this;
	}


	public function setHash($hash)
	{
		if (!$hash = self::filterHash($hash)) {
			throw new \Exception(__('Password is a required entry.'));
		}
		$this->hash = $hash;
		return $this;
	}


	public function isEqualPassword($password)
	{
		return $this->hash == self::hash($password, $this->username);
	}


	public static function hash($password, $username)
	{
		if (!$username = self::filterUsername($username)) {
			throw new \Exception(__('Username is a required entry.'));
		}
		if (!$password = self::filterPassword($password)) {
			throw new \Exception(__('Password is a required entry.'));
		}
		return self::filterHash(hash_hmac('sha256', $password, $username));
	}
}