Dynamic Fees for Shipping Per Payment GateWay for WooCommerce

dynamic-fees.php

add_action('init', 'cg_init');

function cg_init() {
  add_action('woocommerce_cart_calculate_fees', 'cg_add_fee');
  add_action('wp_footer', 'cg_footer', 9999);
}

function cg_footer() {
  ?>
  <script type="text/javascript">
    jQuery(function($) {
      setInterval(function() {

        $(".input-radio[name='payment_method']").off().change(function() {
        console.log('triggered');
          jQuery('body').trigger('update_checkout');
        });

      }, 500);
    });
  </script>
  <?php
}

function cg_add_fee($the_cart) {
  global $woocommerce;
  $amount = floatval( preg_replace( '#[^\d.]#', '', $woocommerce->cart->get_cart_total() ) );
  if ( $amount < 50  &&  $woocommerce->customer->get_billing_country() == 'GR' ) {
  if ($woocommerce->session->chosen_payment_method == 'cod') {
    $woocommerce->cart->add_fee('Shipping Cost',  '5', true, 'standard');
  } else {
      $woocommerce->cart->add_fee('Shipping Cost',  '3', true, 'standard');
  }
 } else {
     $woocommerce->cart->add_fee('Shipping Cost - Free Shipping',  '0', true, 'standard');
 }
}