Cart and Checkout order bump up-sell

add_action( 'ccom_order_bump', function() {

	// Settings
	$product_title = 'Hoodie with Zipper';
	$offer_html = '
		<h2 style="color: white;">
			<strong>Special offer!</strong>
		</h2>
		Get the Hoodie with Zipper today.
	';

	// Check For Preexistence
	$product_post = get_page_by_title(
		$product_title, OBJECT, 'product'
	);
	$already_in_cart = false;

	if( ! WC()->cart->is_empty() ) {
		foreach( WC()->cart->get_cart() as $cart_item ) {
			if( $cart_item['product_id'] === $product_post->ID ) {
				$already_in_cart = true;
			}
		}
	}

	if( $already_in_cart ) {
		return;
	}

	// Offer Product
	$product = wc_get_product( $product_post );
	$options = [];

	// Variable Product
	if( $product->is_type( 'variable' ) ) {

		$product_variations = $product->get_available_variations();

		foreach( $product_variations as $i => $variation ) {
			$variation_title = array_pop( $variation['attributes'] );
			$options[] = sprintf(
				'<label><input name="add-to-cart" type="radio" value="%d" /> %s $%s</label>',
				$variation['variation_id'],
				$i === 0 ? ' checked="checked"' : '',
				$variation_title,
				number_format( $variation['display_price'], 2 )
			);
		}

	// Non-Variable Product
	} else {
		$options[] = sprintf(
			'<input type="hidden" name="add-to-cart" value="%d" /> $%s',
			$product->get_id(),
			number_format( $product->get_price(), 2 )
		);
	}

	// Output
	printf( '
			<div class="woocommerce-info">
				<form action="">
					%s %s
					<button class="button" style="%s">Add to Cart</button>
				</form>
			</div>
		', $offer_html, implode( '   ', $options ),
		'background-color: rgba(0, 0, 0, 0.15); padding: 0.5em 1em;'
	);
} );

add_action( 'woocommerce_before_cart', function() {

	do_action( 'ccom_order_bump' );

} );

add_action( 'woocommerce_before_checkout_form', function() {

	do_action( 'ccom_order_bump' );

} );