public function recalculate_coupons() {
		// Reset line item totals.
		foreach ( $this->get_items() as $item ) {
			$item->set_total( $item->get_subtotal() );
			$item->set_total_tax( $item->get_subtotal_tax() );
		}

		$discounts = new WC_Discounts( $this );

		foreach ( $this->get_items( 'coupon' ) as $coupon_item ) {
			$coupon_code = $coupon_item->get_code();
			$coupon_id   = wc_get_coupon_id_by_code( $coupon_code );

			// If we have a coupon ID (loaded via wc_get_coupon_id_by_code) we can simply load the new coupon object using the ID.
			if ( $coupon_id ) {
				$coupon_object = new WC_Coupon( $coupon_id );

			} else {

				// If we do not have a coupon ID (was it virtual? has it been deleted?) we must create a temporary coupon using what data we have stored during checkout.
				$coupon_object = new WC_Coupon();
				$coupon_object->set_props( (array) $coupon_item->get_meta( 'coupon_data', true ) );
				$coupon_object->set_code( $coupon_code );
				$coupon_object->set_virtual( true );

				// If there is no coupon amount (maybe dynamic?), set it to the given **discount** amount so the coupon's same value is applied.
				if ( ! $coupon_object->get_amount() ) {

					// If the order originally had prices including tax, remove the discount + discount tax.
					if ( $this->get_prices_include_tax() ) {
						$coupon_object->set_amount( $coupon_item->get_discount() + $coupon_item->get_discount_tax() );
					} else {
						$coupon_object->set_amount( $coupon_item->get_discount() );
					}
					$coupon_object->set_discount_type( 'fixed_cart' );
				}
			}

			/**
			 * Allow developers to filter this coupon before it get's re-applied to the order.
			 *
			 * @since 3.2.0
			 */
			$coupon_object = apply_filters( 'woocommerce_order_recalculate_coupons_coupon_object', $coupon_object, $coupon_code, $coupon_item, $this );

			if ( $coupon_object ) {
				$discounts->apply_coupon( $coupon_object, false );
			}
		}

		$this->set_coupon_discount_amounts( $discounts );
		$this->set_item_discount_amounts( $discounts );

		// Recalculate totals and taxes.
		$this->calculate_totals( true );
	}