Summarize:

I’m using the following code that allow customers know calculation of an extra cost depending on product weight and then add to the cart summary.

Problem:

Code rendundant. I think there is a way to obtain the same output with a more clean and organized code.

Description:
This code add a cost name “Contributo costo pedane” on each unit depending from product weight setted up from woocommerce procuct page.

For each unit weight add 2,00 Euros

/*
  *Add cart fees by cart total weight Add_pedane
  */

add_action( 'woocommerce_cart_calculate_fees', 'a_man_ltd_wc_add_cart_fees' );
if ( ! function_exists( 'a_man_ltd_wc_add_cart_fees' ) ) {
    function a_man_ltd_wc_add_cart_fees( $cart ) {
        $weight = $cart->get_cart_contents_weight();
        if ( $weight <= 1 ) {
            $name="Contributo costo pedane";
            $amount    = 2;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 1 and $weight <=2 ) {
            $name="Contributo costo pedane";
            $amount    = 4;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 2 and $weight <=3 ) {
            $name="Contributo costo pedane";
            $amount    = 6;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 3 and $weight <=4 ) {
            $name="Contributo costo pedane";
            $amount    = 8;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 4 and $weight <=5 ) {
            $name="Contributo costo pedane";
            $amount    = 10;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 5 and $weight <=6 ) {
            $name="Contributo costo pedane";
            $amount    = 12;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 6 and $weight <=7 ) {
            $name="Contributo costo pedane";
            $amount    = 14;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 7 and $weight <=8 ) {
            $name="Contributo costo pedane";
            $amount    = 16;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 8 and $weight <=9 ) {
            $name="Contributo costo pedane";
            $amount    = 18;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 9 and $weight <=10 ) {
            $name="Contributo costo pedane";
            $amount    = 20;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 10 and $weight <=11 ) {
            $name="Contributo costo pedane";
            $amount    = 22;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 11 and $weight <=12 ) {
            $name="Contributo costo pedane";
            $amount    = 24;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 12 and $weight <=13 ) {
            $name="Contributo costo pedane";
            $amount    = 26;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 13 and $weight <=14 ) {
            $name="Contributo costo pedane";
            $amount    = 28;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 14 and $weight <=15 ) {
            $name="Contributo costo pedane";
            $amount    = 30;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 15 and $weight <=16 ) {
            $name="Contributo costo pedane";
            $amount    = 32;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 16 and $weight <=17 ) {
            $name="Contributo costo pedane";
            $amount    = 34;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 17 and $weight <=18 ) {
            $name="Contributo costo pedane";
            $amount    = 36;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 18 and $weight <=19 ) {
            $name="Contributo costo pedane";
            $amount    = 38;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 19 and $weight <=20 ) {
            $name="Contributo costo pedane";
            $amount    = 40;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 20 and $weight <=21 ) {
            $name="Contributo costo pedane";
            $amount    = 42;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 21 and $weight <=22 ) {
            $name="Contributo costo pedane";
            $amount    = 44;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 22 and $weight <=23 ) {
            $name="Contributo costo pedane";
            $amount    = 46;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 23 and $weight <=24 ) {
            $name="Contributo costo pedane";
            $amount    = 48;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 24 and $weight <=25 ) {
            $name="Contributo costo pedane";
            $amount    = 50;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 25 and $weight <=26 ) {
            $name="Contributo costo pedane";
            $amount    = 52;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 26 and $weight <=27 ) {
            $name="Contributo costo pedane";
            $amount    = 54;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 27 and $weight <=28 ) {
            $name="Contributo costo pedane";
            $amount    = 56;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 28 and $weight <=29 ) {
            $name="Contributo costo pedane";
            $amount    = 58;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 29 and $weight <=30 ) {
            $name="Contributo costo pedane";
            $amount    = 60;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 30 and $weight <=31 ) {
            $name="Contributo costo pedane";
            $amount    = 62;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 31 and $weight <=32 ) {
            $name="Contributo costo pedane";
            $amount    = 64;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
        if ( $weight > 32 and $weight <=33 ) {
            $name="Contributo costo pedane";
            $amount    = 66;
            $taxable   = true;
            $tax_class="";
            $cart->add_fee( $name, $amount, $taxable, $tax_class );
        }
    }
}

Limit and expectation:
In this example of coding posted below I have mapped costs for max weight 32-33 units manually but I think it is possible to do something oriented to infinite units with incremental steps of 2 Euros for each unit.