Discount as fee on cart at first order exclude product on sale and if is applied a coupon disable fee - Version Update

discount-as-fee-on-cart-at-first-order-exclude-product-on-sale-and-if-is-applied-a-coupon-disable-fee-version-update.php

<?php

/**
 * Discount as fee on cart at first order exclude product on sale and if is applied a coupon disable fee - Version Update
 */ 

add_action('woocommerce_cart_calculate_fees' , 'custom_discount', 10, 1);
function custom_discount( $cart ){

    if ( is_admin() && ! defined( 'DOING_AJAX' ) || ! is_user_logged_in() )
        return;

	
	// Getting "completed" customer orders
    $customer_orders = get_posts( array(
        'numberposts' => -1,
        'meta_key'    => '_customer_user',
        'meta_value'  => get_current_user_id(),
        'post_type'   => 'shop_order', // WC orders post type
        'post_status' => 'wc-completed' // Only orders with status "completed"
    ) );
	
	  // Orders count
    $customer_orders_count = count($customer_orders);
	
	
	// Set variable
        $new_subtotal = 0;
	
        // Loop though each cart items and set prices in an array
        foreach ( $cart->get_cart() as $cart_item ) {

            // Get product
            $product = wc_get_product( $cart_item['product_id'] );

            // Product has no discount
            if ( ! $product->is_on_sale() ) {
                // line_subtotal
                $line_subtotal = $cart_item['line_subtotal'];

                // Add to new subtotal
                $new_subtotal += $line_subtotal;
            }
        }

        ## Discount calculation ##
        $discount = (-10 / 100) * $new_subtotal; // or WC()->cart->get_total_ex_tax()

        ## Applied discount (no products on sale) ##
        if( !$product->is_on_sale() && empty($customer_orders) || $customer_orders_count == 0){
            $cart->add_fee( 'Sconto del 10% sul primo ordine', $discount);
			
			if( sizeof( $cart->get_applied_coupons() ) > 0 ){
				//$cart->fees_api()->set_fees();
				WC()->cart->remove_coupons();
				wc_clear_notices();
				wc_print_notice( '<strong>Il codice promozionale non è valido dal primo ordine</strong>', 'error' );
			}
		}
}

///////////////////

/*
 * Add notice in cart and checkout
 */

add_action( 'woocommerce_before_checkout_form', 'notice_cart_checkout', 1 );
add_action( 'woocommerce_before_cart_contents', 'notice_cart_checkout', 1 );
function notice_cart_checkout() {
	
   if ( is_admin() && ! defined( 'DOING_AJAX' ) || ! is_user_logged_in() )
        return;

	
	// Getting "completed" customer orders
    $customer_orders = get_posts( array(
        'numberposts' => -1,
        'meta_key'    => '_customer_user',
        'meta_value'  => get_current_user_id(),
        'post_type'   => 'shop_order', // WC orders post type
        'post_status' => 'wc-completed' // Only orders with status "completed"
    ) );
	
	  // Orders count
    $customer_orders_count = count($customer_orders);
	
   if( empty($customer_orders) || $customer_orders_count == 0){
	   
	   $notice = '<strong>Congratulazioni! Hai diritto ad uno sconto del 10% sul primo ordine.</strong> <span style="font-size:35px;">🎉🎊</span>';
	   wc_print_notice( $notice, 'success' );
		}
}