Clear WP REST API Cache on certain interactions from WP Admin Panel

WpRestCache.php

<?php

use WP_Rest_Cache_Plugin\Includes\Caching\Caching;

class WpRestCache
{
    public function __construct()
    {
        add_filter('wp_rest_cache/allowed_endpoints', [$this, 'cacheEndpoints'], 10, 1);
        add_filter('wp_rest_cache/determine_object_type', [$this, 'determinteObjectType'], 10, 4);
        add_action('acf/save_post', [$this, 'handleCacheOnSaveOptions'], 10, 1);
        add_action('pll_save_strings_translations', [$this, 'handleOnSaveTranslation']);
        add_action('transition_post_status', [$this, 'handleCacheOnPostSchedule'], 10, 3);
    }

    public function cacheEndpoints($allowed_endpoints)
    {
        if (!isset($allowed_endpoints['NAMESPACE/v1']) || !in_array('options', $allowed_endpoints['NAMESPACE/v1'])) {
            $allowed_endpoints['NAMESPACE/v1'][] = 'options';
        }
        return $allowed_endpoints;
    }

    public function determinteObjectType($object_type, $cache_key, $data, $uri)
    {
        if ('unknown' !== $object_type || strpos($uri, '/wp-json/NAMESPACE/v1/options') === false) {
            return $object_type;
        }

        if (false !== strpos($uri, '/wp-json/NAMESPACE/v1/options')) {
            $object_type = 'options';
        }

        return $object_type;
    }

    public function handleCacheOnSaveOptions($post_id)
    {
        self::deleteOptionsCache();
    }

    public function handleOnSaveTranslation()
    {
        self::deleteOptionsCache();
    }

    public function handleCacheOnPostSchedule($new, $old, $post)
    {
        if ($post->post_type === 'post' && $new === 'publish' && $old === 'future') {
            self::deletePostArchiveCache();
            self::deleteHomepagesCache();
        }
    }

    public static function deleteOptionsCache()
    {
        if (class_exists(Caching::class)) {
            Caching::get_instance()->delete_object_type_caches('options');
        }
    }

    public static function deleteCompleteCache()
    {
        if (class_exists(Caching::class)) {
            Caching::get_instance()->delete_all_caches(false);
        }
    }

    public static function deletePageAndPostCache()
    {
        if (class_exists(Caching::class)) {
            Caching::get_instance()->delete_object_type_caches('post');
            Caching::get_instance()->delete_object_type_caches('page');
        }
    }

    public static function deletePostArchiveCache()
    {
        if (class_exists(Caching::class)) {
            Caching::get_instance()->delete_cache_by_endpoint('/wp-json/wp/v2/posts', Caching::FLUSH_PARAMS);
        }
    }

    public static function deleteHomepagesCache()
    {
        // The frontend uses the data from the option instead of the frontpage itself
        self::deleteOptionsCache();

        // We run this just in case
        if (class_exists(Caching::class)) {
            $languages = pll_languages_list([
                'fields' => 'slug',
            ]);
            $homeId = get_option('page_on_front');

            foreach ($languages as $lang) {
                $postId = pll_get_post($homeId, $lang);
                Caching::get_instance()->delete_cache_by_endpoint('/wp-json/wp/v2/pages/' . $postId);
            }
        }
    }
}