Free shipping message

<?php

// bomendael

function get_free_shipping_minimum($zone_name = 'Nederland')
{
    if (! isset($zone_name)) {
        return null;
    }

    $result = null;
    $zone = null;

    $zones = \WC_Shipping_Zones::get_zones();
    foreach ($zones as $z) {
        if ($z['zone_name'] == $zone_name) {
            $zone = $z;
        }
    }

    if ($zone) {
        $shipping_methods_nl = $zone['shipping_methods'];
        $free_shipping_method = null;
        foreach ($shipping_methods_nl as $method) {
            if ($method->id == 'free_shipping') {
                $free_shipping_method = $method;
                break;
            }
        }

        if ($free_shipping_method) {
            $result = $free_shipping_method->min_amount;
        }
    }

    return $result;
}

function get_free_shipping_cost() {
    // Get current shipping zone (NL, BE, DE)
    $shipping_packages =  WC()->cart->get_shipping_packages();
    $shipping_zone = wc_get_shipping_zone(reset($shipping_packages));
    $zone_name = $shipping_zone->get_zone_name();

    // get free-shipping method by zone and return price
    return (float) get_free_shipping_minimum($zone_name);
}

// get all shipping classes from current cart
function s7_get_shipping_classes() {
  global $woocommerce;
  $items = $woocommerce->cart->get_cart();
  $classes = [];
  foreach($items as $item) {
    $classes[] = $item['data']->get_shipping_class();
  }
  return $classes;
}

// check if 'gratis' shipping class is active AND the only one
function s7_is_free_class_active($classes) {
  if(count($classes) == 1 && $classes[0] == 'gratis') {
    return true;
  }
  return false;
}

// show price until free shipping notice in cart totals
add_action('woocommerce_cart_totals_before_shipping', function () {
    $free_shipping_cost = get_free_shipping_cost();
    $subtotal = WC()->cart->total;
    $price_from = $free_shipping_cost;
    if (!s7_is_free_class_active(s7_get_shipping_classes()) && $free_shipping_cost > ($subtotal + 250)) {
      $remaining = $free_shipping_cost - $subtotal;
      $notice = sprintf("Bestel voor nog %s en je bestelling wordt gratis verzonden.", wc_price($remaining));
      ob_start(); ?>
      <tr class="bg-secondary-lighter">
        <td colspan="2"><?= $notice ?></td>
      </tr>
      <?php
      $content = ob_get_clean();
      echo $content;
    }
});



// ceramic version
/**
 * Show a message at the cart/checkout displaying
 * how much to go for free shipping.
 */
function free_shipping_notice() {
	if ( ! is_cart() && ! is_checkout() ) { // Remove partial if you don't want to show it on cart/checkout
		return;
	}
	$packages = WC()->cart->get_shipping_packages();
	$package = reset( $packages );
	$zone = wc_get_shipping_zone( $package );
	$cart_total = WC()->cart->get_displayed_subtotal();
	if ( WC()->cart->display_prices_including_tax() ) {
		$cart_total = round( $cart_total - ( WC()->cart->get_discount_total() + WC()->cart->get_discount_tax() ), wc_get_price_decimals() );
	} else {
		$cart_total = round( $cart_total - WC()->cart->get_discount_total(), wc_get_price_decimals() );
	}
	foreach ( $zone->get_shipping_methods( true ) as $k => $method ) {
		$min_amount = $method->get_option( 'min_amount' );
		if ( $method->id == 'free_shipping' && ! empty( $min_amount ) && $cart_total < $min_amount ) {
			$remaining = $min_amount - $cart_total;

			wc_add_notice( sprintf(__('Bestel nog voor %s, dan is de verzending gratis.', 'ceramicnature'), wc_price( $remaining )) );


		}
	}
}
add_action('woocommerce_before_cart', __NAMESPACE__ . '\\free_shipping_notice');