Show regular price in minicart

This code for showing regular price for each product in minicart and subtotal sum. Work with simple and variable products. For bundle products — need corrections.

function display_regular_price_in_mini_cart( $item_data, $cart_item ) {
    
    $product = wc_get_product( $cart_item['product_id'] );
    $quantity = $cart_item['quantity'];
    if ( $product->is_type( 'variable' ) ) {
        $variation_id = $cart_item['variation_id'];
        $variation = wc_get_product( $variation_id );
        $regular_price = $variation->get_regular_price();
    } else {
        $regular_price = $product->get_regular_price();
    }
    
    if ( $regular_price ) {
        $item_data[] = array(
            'key'     => 'regular_price',
            'value'   => '<span class="test_quantity">'.$quantity.' × '.'</span><del>'.wc_price( $regular_price ).'</del><br/>',
            'display' => '',
        );
    }
    
    return $item_data;
}
add_filter( 'woocommerce_get_item_data', 'display_regular_price_in_mini_cart', 10, 2 );

function show_subtotal_with_regular_prices( $subtotal ) {
   
    $cart = WC()->cart->get_cart();
    $subtotal_sale = $subtotal;
    $subtotal = 0;

    foreach ( $cart as $cart_item_key => $cart_item ) {
        $product_id = $cart_item['product_id'];
        $product = wc_get_product( $cart_item['product_id'] );
        $quantity = $cart_item['quantity'];
        if ( $product->is_type( 'variable' ) ) {
        $variation_id = $cart_item['variation_id'];
        $variation = wc_get_product( $variation_id );
        $regular_price = $variation->get_regular_price();
        } else {
            $regular_price = $product->get_regular_price();
        }
            $subtotal += $regular_price * $quantity;
    }
    return  $subtotal_sale.'<del>'.wc_price($subtotal).'</del>';
}

add_filter( 'woocommerce_cart_subtotal', 'show_subtotal_with_regular_prices' );