Pink-Crab/Perique-Ajax

<?php

declare(strict_types=1);

/**
 * Ajax Dispatcher Middleware
 *
 * @since 0.1.0
 * @author Glynn Quelch <glynn.quelch@gmail.com>
 * @license http://www.opensource.org/licenses/mit-license.html  MIT License
 * @package PinkCrab\Ajax
 */

namespace PinkCrab\Ajax\Module;

use PinkCrab\Ajax\Ajax;
use PinkCrab\Ajax\Dispatcher\Ajax_Dispatcher;
use PinkCrab\Perique\Interfaces\Registration_Middleware;


class Ajax_Middleware implements Registration_Middleware {

    public Ajax_Dispatcher $dispatcher;

    public function __construct( Ajax_Dispatcher $dispatcher ) {
        $this->dispatcher = $dispatcher;
    }

    /**
     * Add all valid ajax calls to the dispatcher.
     *
     * @param object $class
     * @return object
     */
    public function process( object $class ): object {
        if ( is_a( $class, Ajax::class )
        && is_admin()
        && wp_doing_ajax()
        ) {
            $this->dispatcher->add_ajax_call( $class );
        }
        return $class;
    }

    public function setup(): void {
        /*noOp*/
    }

    /**
     * Register all ajax calls.
     *
     * @return void
     */
    public function tear_down(): void {
        $this->dispatcher->execute();
    }
}