Example of not using @call method, no namespaces and no imports.

CheckIfUserIsConfirmedTask.php

<?php

class CheckIfUserIsConfirmedTask extends Task
{

    private $user;


    public function run($email, $password)
    {
        $this->loginWithCredentials($email, $password);
        // is the config flag set?
        if (Config::get('authentication-container.require_email_confirmation')) {

            if ( ! $this->user) {
                throw new LoginFailedException();
            }

            if ( ! $this->user->confirmed) {
                throw new UserNotConfirmedException();
            }
        }
    }


    public function loginWithCredentials($email, $password)
    {
        if (Auth::attempt(['email' => $email, 'password' => $password])) {
            $this->user = Auth::user();
        } else {
            throw new LoginFailedException();
        }
    }


    public function setUser(User $user)
    {
        $this->user = $user;
    }
}

ProxyApiLoginAction.php

<?php

/**
 * Class ProxyApiLoginAction.
 */
class ProxyApiLoginAction extends Action
{

    /**
     * @var \App\Containers\Authentication\Tasks\CallOAuthServerTask
     */
    private $authServerTask;

    /**
     * @var \App\Containers\Authentication\Tasks\CheckIfUserIsConfirmedTask
     */
    private $isConfirmedTask;

    /**
     * @var \App\Containers\Authentication\Tasks\MakeRefreshCookieTask
     */
    private $refreshCookieTask;


    /**
     * ProxyApiLoginAction constructor.
     *
     * @param \App\Containers\Authentication\Tasks\CallOAuthServerTask        $authServerTask
     * @param \App\Containers\Authentication\Tasks\CheckIfUserIsConfirmedTask $isConfirmedTask
     * @param \App\Containers\Authentication\Tasks\MakeRefreshCookieTask      $refreshCookieTask
     */
    public function __construct(
        CallOAuthServerTask $authServerTask,
        CheckIfUserIsConfirmedTask $isConfirmedTask,
        MakeRefreshCookieTask $refreshCookieTask
    ) {
        $this->authServerTask    = $authServerTask;
        $this->isConfirmedTask   = $isConfirmedTask;
        $this->refreshCookieTask = $refreshCookieTask;
    }


    /**
     * @param \App\Ship\Parents\Requests\Request $request
     * @param                                    $clientId
     * @param                                    $clientPassword
     *
     * @return  array
     */
    public function run(Request $request, $clientId, $clientPassword)
    {
        $authData = [
            'grant_type'    => 'password',
            'client_id'     => $clientId,
            'client_secret' => $clientPassword,
            'username'      => $request->email,
            'password'      => $request->password,
            'scope'         => '',
        ];

        $responseContent = $this->authServerTask->run($authData);

        $this->isConfirmedTask->run($request->email, $request->password);

        $refreshCookie = $this->refreshCookieTask->run($responseContent['refresh_token']);

        return [
            'response-content' => $responseContent,
            'refresh-cookie'   => $refreshCookie,
        ];
    }
}