Add Free shipping conditionally with certain category on cart and minimum order

Add Free shipping conditionally with certain category on cart and minimum order.php

<?php
/**
 * Add Free shipping conditionally with certain category on cart and minimum order
 */

add_filter( 'woocommerce_package_rates', 'hide_shipping_flat_rate_conditionaly', 90, 2 );
function hide_shipping_flat_rate_conditionaly( $rates, $package ){

    // HERE Define your product category (ID, slug or name or an array of values)
    $term   = '52'; 	## ID Categoria prodotto
    $others = $found = false;
	
	// Loop dove cerca se c'è la categoria nel carrello
    foreach ( WC()->cart->get_cart() as $cart_item ) {
        $product_id = $cart_item['product_id'];
        if ( has_term( $term, 'product_cat', $cart_item['product_id'] ) )
            $found = true;
        else
            $others = true;
    }

    if ( $found ) {   // Se c'è la categoria
        foreach($rates as $rate_id => $rate) {
            if ('wbs' === $rate->method_id && WC()->cart->subtotal >= 50 ){		// Se c'è il flat rate maggiore di 50 euro nel subtotale
                unset($rates[ $rate_id ]);  // Disattiva flat rate
        }elseif('free_shipping' === $rate->method_id && WC()->cart->subtotal < 50 ){		// Altrimenti se c'è la spedizione gratuita al di sotto dei 50 euro nel subtotale
				unset($rates[ $rate_id ]); // Disattiva free shipping
			}
		}
    }
	
	elseif ( $other || ! $found ) {				// Altrimenti se ci sono altre categorie
        foreach($rates as $rate_id => $rate) {
            if ('free_shipping' === $rate->method_id /*&& WC()->cart->subtotal > 50 || WC()->cart->subtotal < 50 */ ){ // Se c'è il free shipping a prescindere
                unset($rates[ $rate_id ]);
        }/*elseif('free_shipping' === $rate->method_id && WC()->cart->subtotal < 50 ){
				unset($rates[ $rate_id ]);
			}*/
		}
    }
    return $rates;
}