add_action( 'woocommerce_before_calculate_totals', function( $cart ) {

    if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return;
    if ( ! function_exists( 'is_checkout' ) || ! is_checkout() ) return; 
    if ( ! $cart || is_wp_error( $cart ) ) return;

    static $processing = false;
    if ( $processing ) return;
    $processing = true;

    // --- זיהוי שיטת משלוח שנבחרה ---
    $delivery_methods_base = array( 'flat_rate', 'courier' ); // משלוח עד הבית
    $pickup_methods_base   = array( 'local_pickup' );         // איסוף עצמי

    $chosen = WC()->session && is_array( WC()->session->get('chosen_shipping_methods') )
        ? WC()->session->get('chosen_shipping_methods')
        : array();

    $chosen_base = null;
    $chosen_rate_id = null;
    if ( ! empty( $chosen ) ) {
        $chosen_rate_id = $chosen[0];           // למשל "flat_rate:3"
        $parts = explode( ':', $chosen_rate_id );
        $chosen_base = $parts[0];               // "flat_rate" / "local_pickup"
    }

    $is_delivery = in_array( $chosen_base, $delivery_methods_base, true );
    $is_pickup   = in_array( $chosen_base, $pickup_methods_base, true );

    if ( ! $is_delivery && ! $is_pickup ) {
        $is_pickup = true; // ברירת מחדל
    }

    // --- סה"כ יחידות בסל ---
    $total_qty = 0;
    foreach ( $cart->get_cart() as $ci ) {
        $total_qty += (int) $ci['quantity'];
    }
    if ( $total_qty < 1 ) { $processing = false; return; }

    // --- יעד מחיר סופי (כולל משלוח) לפי הכמות ---
    if ( $is_pickup ) {
        $desired_total_including_shipping = 110 * $total_qty;
    } else {
        if ( $total_qty <= 5 ) {
            $map = array(
                1 => 126,
                2 => 236,
                3 => 346,
                4 => 460,
                5 => 576,
            );
            $desired_total_including_shipping = $map[ $total_qty ];
        } else {
            $desired_total_including_shipping = 110 * $total_qty;
        }
    }

    // --- חישוב משלוח "כפוי" לפני שליפה (חשוב! אחרת נקבל 0) ---
    $shipping_cost = 0;
    if ( $is_delivery ) {
        // מייצרים את החבילות לפי העגלה הנוכחית
        $packages = WC()->cart->get_shipping_packages();
        // מחשבים משלוח עכשיו כדי שה־rates יתמלאו
        WC()->shipping()->calculate_shipping( $packages );
        // כעת שולפים את ה־rates המחושבים
        $calc_packages = WC()->shipping()->get_packages();

        if ( ! empty( $calc_packages ) && isset( $calc_packages[0]['rates'] ) ) {
            $rates = $calc_packages[0]['rates'];
            if ( $chosen_rate_id && isset( $rates[ $chosen_rate_id ] ) ) {
                $rate = $rates[ $chosen_rate_id ];
                // עלות + מיסים (אם יש)
                $shipping_cost = floatval( $rate->cost );
                if ( ! empty( $rate->taxes ) && is_array( $rate->taxes ) ) {
                    $shipping_cost += array_sum( array_map( 'floatval', $rate->taxes ) );
                }
            }
        }
    }

    // --- עכשיו היעד ל-Subtotal של המוצרים בלבד ---
    $target_items_total = max( 0, $desired_total_including_shipping - $shipping_cost );

    // --- חלוקת המחיר לפריטים: base + remainder ---
    $base      = intdiv( $target_items_total, $total_qty );
    $remainder = $target_items_total - ( $base * $total_qty );

    if ( $remainder === 0 ) {
        foreach ( $cart->get_cart() as $item ) {
            if ( ! empty( $item['data'] ) ) {
                $item['data']->set_price( $base );
            }
        }
        $processing = false; 
        return;
    }

    $cart_object = WC()->cart;
    $existing_items = $cart->get_cart();

    foreach ( $existing_items as $cart_item_key => $cart_item ) {
        if ( $remainder <= 0 ) break;
        if ( empty( $cart_item['data'] ) ) continue;

        $product       = $cart_item['data'];
        $product_id    = $cart_item['product_id'];
        $variation_id  = isset( $cart_item['variation_id'] ) ? (int) $cart_item['variation_id'] : 0;
        $variation_data= isset( $cart_item['variation'] ) ? $cart_item['variation'] : array();
        $quantity      = (int) $cart_item['quantity'];
        if ( $quantity <= 0 ) continue;

        $q_plus = min( $remainder, $quantity );
        $q_base = $quantity - $q_plus;

        if ( $q_plus === 0 || $q_base === $quantity ) {
            $product->set_price( $base );
            continue;
        }

        // עדכון שורה מקורית כ-base
        if ( $q_base > 0 ) {
            $cart->cart_contents[ $cart_item_key ]['quantity'] = $q_base;
            $cart->cart_contents[ $cart_item_key ]['data']->set_price( $base );
        } else {
            unset( $cart->cart_contents[ $cart_item_key ] );
        }

        // שורת "+1"
        $unique_key   = wp_generate_uuid4();
        $new_item_data= array( 'mb_tier_split' => $unique_key );
        $new_key = $cart_object->add_to_cart(
            $product_id,
            $q_plus,
            $variation_id,
            $variation_data,
            $new_item_data
        );
        if ( $new_key ) {
            $cart->cart_contents[ $new_key ]['data']->set_price( $base + 1 );
        }

        $remainder -= $q_plus;
    }

    if ( $remainder > 0 ) {
        foreach ( array_reverse( array_keys( $cart->cart_contents ) ) as $key ) {
            if ( $remainder <= 0 ) break;
            $q = (int) $cart->cart_contents[ $key ]['quantity'];
            if ( $q === 1 ) {
                $cart->cart_contents[ $key ]['data']->set_price( $base + 1 );
                $remainder -= 1;
            }
        }
    }

    $processing = false;
}, 9999 );
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		<lastmod>2025-10-30T11:58:01+00:00</lastmod>
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		<lastmod>2025-07-30T15:45:06+00:00</lastmod>
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		<lastmod>2025-10-05T11:57:37+00:00</lastmod>
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		<lastmod>2025-11-02T13:22:40+00:00</lastmod>
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