Wocommerce apply coupon automatically to the cart for specific products

/**
* @Title: Wocommerce apply coupon automatically to the cart for specific products
* @Author: Mina Pansuriya
* @Blog URL :http://minapansuriya.com/wocommerce-apply-coupon-automatically-to-the-cart-for-specific-products/
**/

add_action( 'woocommerce_before_cart', 'pbs_apply_auto_discount_coupons' );

function pbs_apply_auto_discount_coupons() {
global $woocommerce;

if(is_cart() || is_checkout())
{

    $coupon_code = 'Sat$10Off'; // replace this Coupon Code with yours
 
    
    if ( $woocommerce->cart->has_discount( $coupon_code ) )
    {
        return;
    }
    
    foreach ($woocommerce->cart->get_cart() as $cart_item ) 
    {

          $autocoupon = array("263", "15");  // Replace this product IDs with yours


          if(in_array($cart_item['product_id'], $autocoupon))
          {
              $woocommerce->cart->add_discount( $coupon_code );
              wc_print_notices();
          }
    }
    
  }
}