Romm\Formz\Form\FormObject\Service\FormObjectSteps

Complexity

Total Complexity

14

Size/Duplication

Total Lines	110
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	10

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
C	getCurrentStep()	0	35	7
B	getStepPersistence()	0	25	6

<?php
/*
 * 2017 Romain CANON <romain.hydrocanon@gmail.com>
 *
 * This file is part of the TYPO3 FormZ project.
 * It is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License, either
 * version 3 of the License, or any later version.
 *
 * For the full copyright and license information, see:
 * http://www.gnu.org/licenses/gpl-3.0.html
 */

namespace Romm\Formz\Form\FormObject\Service;

use Romm\Formz\Configuration\Form\Step\Step\Step;
use Romm\Formz\Core\Core;
use Romm\Formz\Form\FormObject\FormObject;
use Romm\Formz\Form\FormObject\Service\Step\FormStepPersistence;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Extbase\Mvc\Web\Request;

class FormObjectSteps
{
    const METADATA_STEP_PERSISTENCE_KEY = 'core.formStepPersistence';

    /**
     * @var FormObject
     */
    protected $formObject;

    /**
     * Step persistence is saved in the form metadata.
     *
     * It allows having essential information about the form steps whenever it
     * is needed: submitted form values, as well as steps that were already
     * validated.
     *
     * @var FormStepPersistence
     */
    protected $stepPersistence;

    /**
     * @param FormObject $formObject
     */
    public function __construct(FormObject $formObject)
    {
        $this->formObject = $formObject;
    }

    /**
     * This function will search among the registered steps to find the one that
     * has the same controller parameters.
     *
     * It is also possible not to find any step, in this case `null` is
     * returned.
     *
     * @param Request $request
     * @return Step|null
     */
    public function getCurrentStep(Request $request)
    {
        $configuration = $this->formObject->getConfiguration();

        if (false === $configuration->hasSteps()) {
            return null;
        }

        $currentStep = null;

        foreach ($configuration->getSteps()->getEntries() as $step) {
            $data = [
                $step->getPageUid()    => Core::get()->getPageController()->id,
                $step->getExtension()  => $request->getControllerExtensionName(),
                $step->getController() => $request->getControllerName(),
                $step->getAction()     => $request->getControllerActionName(),
            ];

            foreach ($data as $stepData => $requestData) {
                if (false === empty($stepData)
                    && $stepData !== $requestData
                ) {
                    continue 2;
                }
            }

            if (null !== $currentStep) {
                throw new \Exception('todo'); // @todo
            }

            $currentStep = $step;
        }

        return $currentStep;
    }

    /**
     * Fetches the step persistence object for the form, which may have been
     * stored in the form metadata.
     *
     * If the form object hash did change since the persistence object was saved
     * it is "refreshed" with the new hash (some data are also deleted as they
     * are no longer considered as valid).
     *
     * @return FormStepPersistence
     */
    public function getStepPersistence()
    {
        // @todo check configuration has steps or fatal error
        if (null === $this->stepPersistence) {
            $objectHash = $this->formObject->getObjectHash();
            $metadata = $this->formObject->getFormMetadata()->getMetadata();

            if ($metadata->has(self::METADATA_STEP_PERSISTENCE_KEY)) {
                $this->stepPersistence = $metadata->get(self::METADATA_STEP_PERSISTENCE_KEY);

                if (false === $this->stepPersistence instanceof FormStepPersistence) {
                    unset($this->stepPersistence);
                } elseif ($objectHash !== $this->stepPersistence->getObjectHash()) {
                    $this->stepPersistence->refreshObjectHash($objectHash);
                }
            }

            if (null === $this->stepPersistence) {
                $this->stepPersistence = GeneralUtility::makeInstance(FormStepPersistence::class, $objectHash);
                $metadata->set(self::METADATA_STEP_PERSISTENCE_KEY, $this->stepPersistence);
            }
        }

        return $this->stepPersistence;
    }
}