Add dropshipment costs #php #woocommerce

dropship.php

<?php

add_filter( 'woocommerce_package_rates', 'custom_shipping_costs', 20, 2 );
function custom_shipping_costs( $rates, $package ) 
{
    // New shipping cost (can be calculated)
    $new_cost = 5;
    $tax_rate = 0.21;
	
	global $woocommerce;
    //$address  = ( !empty( $woocommerce->customer->get_shipping_address_1() ) ) ? $woocommerce->customer->get_shipping_address_1() : $woocommerce->customer->get_billing_address_1();
    //$postcode = ( !empty( $woocommerce->customer->get_shipping_postcode() ) ) ? $woocommerce->customer->get_shipping_postcode() : $woocommerce->customer->get_billing_postcode();

	
  foreach( $rates as $rate_key => $rate )
	{
        // Excluding free shipping methods
        if( $rate->method_id == 'free_shipping')
		{
			if ( WC()->customer->get_shipping_address_1() != WC()->customer->get_billing_address_1() )
			{
        //works but doesnt remove the free shipping cost from checkout
				//WC()->cart->add_fee( 'Dropshipment ', $new_cost, true );
       
				//instead we use this but it is not working 100% (for visibility)
				$rates[$rate_key]->method_id = 'flat_rate';
				$rates[$rate_key]->label = __( 'Dropshipment', 'woocommerce' ); // New label name
				$rates[$rate_key]->cost = $new_cost; // * (1 + $tax_rate);
				
				// working, but not showing on VAT line in checkout..
				// Set taxes rate cost (if enabled)				
				
				if( ! WC()->customer->is_vat_exempt() )
				{
					$taxes = array();
					$taxes['sub_total'] = $new_cost * $tax_rate;
					$rates[$rate_key]->taxes = $taxes;
				}
				
				/*
        // example from online but doesnt calculate VAT because taxes keys are not set..
				// Set taxes rate cost (if enabled)				
				foreach ($rates[$rate_key]->taxes as $key => $tax){
					if( $rates[$rate_key]->taxes[$key] > 0 )
						$taxes[$key] = $new_cost * $tax_rate;
				}
				*/
				
  			}
     }
  }
  return $rates;
}

?>