getParentThemeId example

        $parentBundle = $this->getThemeConfigWithLabels();
        $this->themeLifecycleService->refreshTheme($parentBundle, $this->context);
        $bundle = $this->getThemeConfig();
        $bundle->setConfigInheritance(['@' . $parentBundle->getTechnicalName()]);

        $this->themeLifecycleService->refreshTheme($bundle, $this->context);

        $parentThemeEntity = $this->getTheme($parentBundle);
        $themeEntity = $this->getTheme($bundle);

        static::assertEquals($parentThemeEntity->getId(), $themeEntity->getParentThemeId());
    }

    public function testThemeRefreshWithParentTheme(): void
    {
        $parentBundle = $this->getThemeConfigWithLabels();
        $this->themeLifecycleService->refreshTheme($parentBundle, $this->context);
        $bundle = $this->getThemeConfig();
        $bundle->setConfigInheritance(['@' . $parentBundle->getTechnicalName()]);

        $this->themeLifecycleService->refreshTheme($bundle, $this->context);

        

$technicalName = null;

        do {
            /** @var ThemeEntity|null $theme */
            $theme = $this->themeRepository->search(new Criteria([$themeId]), $this->context)->first();

            if (!$theme instanceof ThemeEntity) {
                break;
            }

            $technicalName = $theme->getTechnicalName();
            $themeId = $theme->getParentThemeId();
        } while ($technicalName === null && $themeId !== null);

        return $technicalName;
    }
}

throw new InvalidThemeException($themeId);
        }
        $baseThemeConfig = [];

        if ($withBase) {
            $baseTheme = $themes->filter(fn (ThemeEntity $themeEntry) => $themeEntry->getTechnicalName() === $this->baseTheme)->first();
            \assert($baseTheme !== null);

            $baseThemeConfig = $this->mergeStaticConfig($baseTheme);
        }

        if ($theme->getParentThemeId()) {
            $parentThemes = $this->getParentThemeIds($themes, $theme);

            foreach ($parentThemes as $parentTheme) {
                $configuredParentTheme = $this->mergeStaticConfig($parentTheme);
                $baseThemeConfig = array_replace_recursive($baseThemeConfig, $configuredParentTheme);
            }
        }

        $configuredTheme = $this->mergeStaticConfig($theme);

        return array_replace_recursive($baseThemeConfig, $configuredTheme);
    }

if ($baseTheme === null) {
            throw new InvalidThemeException(StorefrontPluginRegistry::BASE_THEME_NAME);
        }

        $baseThemeConfig = $this->mergeStaticConfig($baseTheme);

        $themeConfigFieldFactory = new ThemeConfigFieldFactory();
        $configFields = [];
        $labels = array_replace_recursive($baseTheme->getLabels() ?? [], $theme->getLabels() ?? []);
        $helpTexts = array_replace_recursive($baseTheme->getHelpTexts() ?? [], $theme->getHelpTexts() ?? []);

        if ($theme->getParentThemeId()) {
            foreach ($this->getParentThemes($themes, $theme) as $parentTheme) {
                $configuredParentTheme = $this->mergeStaticConfig($parentTheme);
                $baseThemeConfig = array_replace_recursive($baseThemeConfig, $configuredParentTheme);
                $labels = array_replace_recursive($labels, $parentTheme->getLabels() ?? []);
                $helpTexts = array_replace_recursive($helpTexts, $parentTheme->getHelpTexts() ?? []);
            }
        }

        $configuredTheme = $this->mergeStaticConfig($theme);
        $themeConfig = array_replace_recursive($baseThemeConfig, $configuredTheme);