<?php

namespace WooOrderCart\Front\AddToCart;

class AddToCartWooRequestGuard {
    private static ?self $instance = null;

    public static function instance(): self {
        return self::$instance ??= new self();
    }

    private function __construct() {
        add_action( 'wp_loaded', [ $this, 'protect_sidecart_ajax_request' ], 0 );
    }

    public function protect_sidecart_ajax_request(): void {
        if ( ! AddToCartContext::is_sidecart_ajax_request() ) {
            return;
        }

        $product_id = AddToCartContext::get_requested_product_id();
        if ( $product_id > 0 ) {
            $_REQUEST[ AddToCartContext::get_internal_product_id_key() ] = $product_id;
            $_POST[ AddToCartContext::get_internal_product_id_key() ] = $product_id;
            $_REQUEST['product_id'] = $product_id;
            $_POST['product_id'] = $product_id;
        }

        unset( $_REQUEST['add-to-cart'], $_POST['add-to-cart'], $_GET['add-to-cart'] );

        remove_action( 'wp_loaded', [ 'WC_Form_Handler', 'add_to_cart_action' ], 20 );
    }
}