class ResponsiveImageConfigUpdater

final class ResponsiveImageConfigUpdater {
    
    /**
     * Flag determining whether deprecations should be triggered.
     *
     * @var bool
     */
    private $deprecationsEnabled = TRUE;
    
    /**
     * Stores which deprecations were triggered.
     *
     * @var bool
     */
    private $triggeredDeprecations = [];
    
    /**
     * Sets the deprecations enabling status.
     *
     * @param bool $enabled
     *   Whether deprecations should be enabled.
     */
    public function setDeprecationsEnabled(bool $enabled) : void {
        $this->deprecationsEnabled = $enabled;
    }
    
    /**
     * Re-order mappings by breakpoint ID and descending numeric multiplier order.
     *
     * @param \Drupal\responsive_image\ResponsiveImageStyleInterface $responsive_image_style
     *   The responsive image style
     *
     * @return bool
     *   Whether the responsive image style was updated.
     *
     *   @todo when removing this, evaluate if we need to keep it permanently
     *   to support an upgrade path (migration) from Drupal 7 picture module.
     */
    public function orderMultipliersNumerically(ResponsiveImageStyleInterface $responsive_image_style) : bool {
        $changed = FALSE;
        $original_mapping_order = $responsive_image_style->getImageStyleMappings();
        $responsive_image_style->removeImageStyleMappings();
        foreach ($original_mapping_order as $mapping) {
            $responsive_image_style->addImageStyleMapping($mapping['breakpoint_id'], $mapping['multiplier'], $mapping);
        }
        if ($responsive_image_style->getImageStyleMappings() !== $original_mapping_order) {
            $changed = TRUE;
        }
        $deprecations_triggered =& $this->triggeredDeprecations['3267870'][$responsive_image_style->id()];
        if ($this->deprecationsEnabled && $changed && !$deprecations_triggered) {
            $deprecations_triggered = TRUE;
            @trigger_error(sprintf('The responsive image style multiplier re-ordering update for "%s" is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Profile, module and theme provided Responsive Image configuration should be updated. See https://www.drupal.org/node/3274803', $responsive_image_style->id()), E_USER_DEPRECATED);
        }
        return $changed;
    }
    
    /**
     * Processes responsive image type fields.
     *
     * @param \Drupal\Core\Entity\Display\EntityViewDisplayInterface $view_display
     *   The view display.
     *
     * @return bool
     *   Whether the display was updated.
     */
    public function processResponsiveImageField(EntityViewDisplayInterface $view_display) : bool {
        $changed = FALSE;
        foreach ($view_display->getComponents() as $field => $component) {
            if (isset($component['type']) && $component['type'] === 'responsive_image' && !array_key_exists('image_loading', $component['settings'])) {
                $component['settings']['image_loading']['attribute'] = 'eager';
                $view_display->setComponent($field, $component);
                $changed = TRUE;
            }
        }
        $deprecations_triggered =& $this->triggeredDeprecations['3192234'][$view_display->id()];
        if ($this->deprecationsEnabled && $changed && !$deprecations_triggered) {
            $deprecations_triggered = TRUE;
            @trigger_error(sprintf('The responsive image loading attribute update for "%s" is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Configuration should be updated. See https://www.drupal.org/node/3279032', $view_display->id()), E_USER_DEPRECATED);
        }
        return $changed;
    }

}