Restore a discounted product price for a specific shipping method in Woocommerce

Question

I am trying to find a solution to the following issue. I have been using Woocommerce Dynamic Pricing in order to apply a 25% discount for a specific product category. Then, I need to remove that discount if shipping option will be local_pickup. I thought I can tweak the following code. It is missing something somewhere, so I am asking you for help.

function discount_table(){
// Set $cat_in_cart to false
$cat_in_cart = false;

// Loop through all products in the Cart        
foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {

    if ( has_term( 'category_1', 'product_cat', $cart_item['product_id'] ) ) {
        $cat_in_cart = true;
        break;
    }
}

    $total = WC()->cart->subtotal;
    $sconto_label = "";
    if($total >= 300){
        $sconto_label=15;       
    }elseif($total >= 220){
        $sconto_label=10;
    }elseif($total >= 150){
        $sconto_label=8;
    }elseif($total >= 100){
        $sconto_label=4;
    }
    $chosen_methods = WC()->session->get( 'chosen_shipping_methods' );
    $chosen_shipping = explode(':',$chosen_methods[0]);

    if($chosen_shipping[0]=='local_pickup' && !$cat_in_cart){
        $sconto_label=25;
    }
    else if ($chosen_shipping[0]=='local_pickup' && $cat_in_cart){
        $sconto_label=25;
// there should be something here or not?
    }
    $sconto_cliente = (($total*$sconto_label)/100);
    if($sconto_label!="")
        $sconto_cliente_net = ($sconto_loison/1.1);
        WC()->cart->add_fee( "Discount ($sconto_label%)", -$sconto_cliente_net, false );
}
add_action( 'woocommerce_cart_calculate_fees','discount_table' );

Is there a way to restore original price of one or more item of a specific category that have been already discounted when in cart?

Answer 1

To restore cart items price based on a product category and on a specific chosen shipping method, try the following (for Woocommerce Dynamic Pricing):

add_filter('woocommerce_add_cart_item_data', 'add_default_price_as_cart_item_custom_data', 50, 3 );
function add_default_price_as_cart_item_custom_data( $cart_item_data, $product_id, $variation_id ){
    // HERE define your product category(ies)
    $categories = array('t-shirts');

    if ( has_term( $categories, 'product_cat', $product_id ) ) {
        $product_id = $variation_id > 0 ? $variation_id : $product_id;

        // The WC_Product Object
        $product = wc_get_product($product_id);

        // Get product default base price
        $price = (float) $product->get_price();

        // Set the Product default base price as custom cart item data
        $cart_item_data['default_price'] = $price;
    }
    return $cart_item_data;
}

add_action( 'woocommerce_before_calculate_totals', 'restore_cart_item_price', 900, 1 );
function restore_cart_item_price( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    // HERE set the targeted Chosen Shipping method
    $targeted_shipping_method = 'local_pickup';

    // Get the chosen shipping method
    $chosen_methods            = WC()->session->get( 'chosen_shipping_methods' );
    $chosen_shipping_method_id = explode(':', reset($chosen_methods) );
    $chosen_shipping_method    = reset($chosen_shipping_method_id);

    // Loop through cart items
    foreach ( $cart->get_cart() as $cart_item ) {
        if( $targeted_shipping_method == $chosen_shipping_method && isset($cart_item['default_price']) ){
            // Set back the default cart item price
            $cart_item['data']->set_price($cart_item['default_price']);
        }
    }
}

Code goes in function.php file of your active child theme (or active theme). It should works.

Note: When Using a negative fee (a cart discount), the tax is always applied.