Extract data from standard keycloak payload via "__call" magic method.

keycloak_payload_dto.php

<?php

namespace PhacMan\MultiTool\Keycloak;

use PhacMan\MultiTool\Convert\CompoundWord;

/**
 * Extract data from standard keycloak payload.
 *
 * @method int|null    getExp()               1673171296
 * @method int|null    getIat()               1673170996
 * @method string|null getJti()               d58f5dc8-fd8f-462b-8a19-716f8f83985b
 * @method string|null getIss()               http://localhost:6080/auth/realms/something
 * @method string|null getAud()               account
 * @method string|null getSub()               36fa0f91-f94d-4a0c-afed-6b7d952e47da
 * @method string|null getTyp()               Bearer
 * @method string|null getAzp()               something
 * @method string|null getSessionState()      2a88c258-f73a-4103-b862-e1fbd8f4e04e
 * @method string|null getAcr()               1
 * @method array|null  getAllowedOrigins()    []
 * @method array|null  getRealmAccess()       []
 * @method array|null  getResourceAccess()    []
 * @method string|null getScope()             email profile
 * @method string|null getSid()               2a88c258-f73a-4103-b862-e1fbd8f4e04e
 * @method bool|null   getEmailVerified()     true
 * @method string|null getName()              Something Name
 * @method string|null getPreferredUsername() username
 * @method string|null getGivenName()         Given Name
 * @method string|null getFamilyName()        Family Name
 * @method string|null getEmail()             some@thing.com
 */
class PayloadDto
{
    private CompoundWord $convert;

    /**
     * @var array<string, array<int, string>|int|string>
     */
    private array $data;

    public function __construct(
        string $payload
    ) {
        $json = json_decode($payload, true);
        $this->data = !\is_array($json) ? [] : $json;
        $this->convert = new CompoundWord();
    }

    /**
     * @param  string             $name
     * @param  array<int, string> $arguments
     * @return mixed
     */
    public function __call(string $name, array $arguments = []): mixed
    {
        $key = $this->convert->camelToSnake($name);
        $key = substr($key, 4);

        if ('allowed_origins' === $key) {
            $key = 'allowed-origins';
        }

        return $this->data[$key] ?? null;
    }
}