Add Free shipping conditionally with specific category on cart and minimum order for this category

Add Free shipping conditionally with specific category on cart and minimum order for this category.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   = 'Cannabis Light'; 	## ID Categoria prodotto o slug o intero titolo della categoria
    $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;
			// Get non discounted subtotal including taxes from subcategories
			$subtotal += $cart_item['line_subtotal'] + $cart_item['line_subtotal_tax']; 
		}else{
            $others = true;
    }
}

    if ( $found ) {   // Se c'è la categoria
        foreach($rates as $rate_id => $rate) {
            if ('wbs' === $rate->method_id && $subtotal >= 50 ){		// Se c'è il flat rate maggiore di 50 euro nel subtotale
                unset($rates[ $rate_id ]);  // Disattiva flat rate
        }elseif('free_shipping' === $rate->method_id && $subtotal < 50 ){
			// Display an error notice (and avoid checkout)
        wc_add_notice( sprintf(
            __( "Devi spendere almeno %s in %s per usufruire delle spedizione gratuita!", "woocommerce" ),
            wc_price('50'),
            '"<strong>' . ucfirst($term) . '</strong>"' 
        ), 'error' );
				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;
}