<?php

namespace League\OAuth2\Server\Entities\Traits;

use DateTimeImmutable;
use League\OAuth2\Server\Entities\ClientEntityInterface;
use League\OAuth2\Server\Entities\ScopeEntityInterface;

trait TokenEntityTrait
{
    /** @var ScopeEntityInterface[] */
    protected $scopes = [];

    /** @var DateTimeImmutable */
    protected $expiryDateTime;

    /** @var string|int|null */
    protected $userIdentifier;

    /** @var ClientEntityInterface */
    protected $client;

    /**
     * Associate a scope with the token.
     *
     * @param ScopeEntityInterface $scope
     */
    public function addScope(ScopeEntityInterface $scope)
    {
        $this->scopes[$scope->getIdentifier()] = $scope;
    }

    /**
     * Return an array of scopes associated with the token.
     *
     * @return ScopeEntityInterface[]
     */
    public function getScopes()
    {
        return \array_values($this->scopes);
    }

    /**
     * Get the token's expiry date time.
     *
     * @return DateTimeImmutable
     */
    public function getExpiryDateTime()
    {
        return $this->expiryDateTime;
    }

    /**
     * Set the date time when the token expires.
     *
     * @param DateTimeImmutable $dateTime
     */
    public function setExpiryDateTime(DateTimeImmutable $dateTime)
    {
        $this->expiryDateTime = $dateTime;
    }

    /**
     * Set the identifier of the user associated with the token.
     *
     * @param string|int|null $identifier The identifier of the user
     */
    public function setUserIdentifier($identifier)
    {
        $this->userIdentifier = $identifier;
    }

    /**
     * Get the token user's identifier.
     *
     * @return string|int|null
     */
    public function getUserIdentifier()
    {
        return $this->userIdentifier;
    }

    /**
     * Get the client that the token was issued to.
     *
     * @return ClientEntityInterface
     */
    public function getClient()
    {
        return $this->client;
    }

    /**
     * Set the client that the token was issued to.
     *
     * @param ClientEntityInterface $client
     */
    public function setClient(ClientEntityInterface $client)
    {
        $this->client = $client;
    }
}
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