Create Product Bundles by adding coupons to cart dynamically based on products in the cart - WooCommerce

create-product-bundles-by-adding-coupons-to-cart-dynamically-based-on-products-in-the-cart.php

<?php

/**
* Hire Jordan Smith // Create Product Bundles by adding coupons to cart dynamically based on products in the cart
*
* @version	 1.0
* @author    Jordan Smith <jordan@hirejordansmith.com>
* @license   GPL-2.0+
* @link      http://hirejordansmith.com/...
* @copyright 2016 - Hire Jordan Smith
*/

add_action( 'woocommerce_before_cart', 'hjs_add_hat_panty_bundle_coupon' );
function hjs_add_hat_panty_bundle_coupon() {
	
  global $woocommerce;
  
  // Replace 'hatpantybundle2016' with your coupon code
  $coupon_code = 'hatpantybundle2016'; 

  // Create Empty Array
  $cart_product_ids = [];
  
  // Build Array of Product Id's for Cart Products
  foreach ($woocommerce->cart->cart_contents as $key => $ids ) {
    $cart_product_ids[] = $ids['product_id'];		
  }
  
	// Numbers represent Product IDs
	if (in_array( 1507, $cart_product_ids) && in_array(1320, $cart_product_ids)) {

		if ( $woocommerce->cart->has_discount( $coupon_code ) ) return;

	  foreach ($woocommerce->cart->cart_contents as $key => $values ) {

		  $autocoupon = array(1507, 1320); 

		  if (in_array( $values['product_id'], $autocoupon) ){    

		      $woocommerce->cart->add_discount( $coupon_code );

		      wc_print_notices();

		      if ( $woocommerce->cart->has_discount( $coupon_code ) ) return;

		  }

	  }

	} else {
		
		// This will automatically remove the coupon if it's already added
		// I had this in place because I was doing more than one of these so it resets the cart
		$woocommerce->cart->remove_coupon( $coupon_code );	
	
  }
  
}