<?php
/**
 * Price result value object.
 *
 * @package Extrova
 */

declare( strict_types=1 );

namespace Extrova\Core;

defined( 'ABSPATH' ) || exit;

/**
 * Result of pricing one selection.
 *
 * @since 1.0.0
 */
final readonly class PriceResult {

	/**
	 * Constructor.
	 *
	 * @param string $amount         Net amount (decimal string) charged as the fee amount.
	 * @param bool   $taxable        Whether taxes apply.
	 * @param string $tax_class      Tax class slug.
	 * @param string $display_amount Amount shown to the customer (incl./excl. per `woocommerce_tax_display_cart`).
	 * @param string $tax            Estimated tax for the current customer (decimal string).
	 */
	public function __construct(
		public string $amount,
		public bool $taxable,
		public string $tax_class,
		public string $display_amount,
		public string $tax = '0'
	) {}

	/**
	 * Zero result.
	 *
	 * @param bool   $taxable   Taxable.
	 * @param string $tax_class Tax class.
	 */
	public static function zero( bool $taxable = false, string $tax_class = '' ): self {
		return new self( '0', $taxable, $tax_class, '0', '0' );
	}

	/**
	 * Whether nothing is charged.
	 */
	public function is_zero(): bool {
		return (float) $this->amount <= 0;
	}
}