woocommerce/api/rest-api-filters/rest-api-filters.php

<?php

register_woocommerce_admin_test_helper_rest_route(
    '/rest-api-filters',
    [ WCA_Test_Helper_Rest_Api_Filters::class, 'create' ],
    array(
        'methods' => 'POST',
        'args'                => array(
            'endpoint'     => array(
                'description'       => 'Rest API endpoint.',
                'type'              => 'string',
                'required'            => true,
                'sanitize_callback' => 'sanitize_text_field',
            ),
            'dot_notation' => array(
                'description'       => 'Dot notation of the target field.',
                'type'              => 'string',
                'required'            => true,
                'sanitize_callback' => 'sanitize_text_field',
            ),
            'replacement'   => array(
                'description'       => 'Replacement value for the target field.',
                'type'              => 'string',
                'required'            => true,
                'sanitize_callback' => 'sanitize_text_field',
            ),
        ),
    )
);

register_woocommerce_admin_test_helper_rest_route(
    '/rest-api-filters',
    [ WCA_Test_Helper_Rest_Api_Filters::class, 'delete' ],
    array(
        'methods' => 'DELETE',
        'args'                => array(
            'index'     => array(
                'description'       => 'Rest API endpoint.',
                'type'              => 'integer',
                'required' => true,
            ),
        ),
    )
);


register_woocommerce_admin_test_helper_rest_route(
    '/rest-api-filters/(?P<index>\d+)/toggle',
    [ WCA_Test_Helper_Rest_Api_Filters::class, 'toggle' ],
    array(
        'methods' => 'POST',
    )
);


class WCA_Test_Helper_Rest_Api_Filters {
    const WC_ADMIN_TEST_HELPER_REST_API_FILTER_OPTION = 'wc-admin-test-helper-rest-api-filters';

    public static function create( $request ) {
        $endpoint = $request->get_param('endpoint');
        $dot_notation = $request->get_param('dot_notation');
        $replacement = $request->get_param('replacement');

        self::update(
            function ( $filters ) use (
                $endpoint,
                $dot_notation,
                $replacement
            ) {
                $filters[] = array(
                'endpoint' => $endpoint,
                'dot_notation' => $dot_notation,
                'replacement' => filter_var( $replacement, FILTER_VALIDATE_BOOLEAN ),
                'enabled' => true,
                );
                return $filters;
            }
        );
        return new WP_REST_RESPONSE(null, 204);
    }

    public static function update( callable $callback ) {
        $filters = get_option(self::WC_ADMIN_TEST_HELPER_REST_API_FILTER_OPTION, array());
        $filters = $callback( $filters );
        return update_option(self::WC_ADMIN_TEST_HELPER_REST_API_FILTER_OPTION, $filters);
    }

    public static function delete( $request ) {
        self::update(
            function ( $filters ) use ( $request ) {
                array_splice($filters, $request->get_param('index'), 1);
                return $filters;
            }
        );

        return new WP_REST_RESPONSE(null, 204);
    }

    public static function toggle( $request ) {
        self::update(
            function ( $filters ) use ( $request ) {
                $index = $request->get_param('index');
                $filters[$index]['enabled'] = !$filters[$index]['enabled'];
                return $filters;
            }
        );
        return new WP_REST_RESPONSE(null, 204);
    }
}