<?php
/**
 * Replaces the base price with an agent-specific override when present.
 *
 * @package Bookline
 */

declare( strict_types=1 );

namespace Bookline\Domain\Pricing\Modifiers;

use Bookline\Domain\Pricing\Money;
use Bookline\Domain\Pricing\PriceContext;
use Bookline\Domain\Pricing\PriceModifier;

/**
 * Priority 20 — agent price override from agent_services.
 *
 * @since 0.1.0
 */
final class AgentPriceOverride implements PriceModifier {

	/**
	 * Priority.
	 *
	 * @since 0.1.0
	 */
	public function priority(): int {
		return 20;
	}

	/**
	 * Apply agent override when set.
	 *
	 * @param PriceContext $ctx     Context.
	 * @param Money        $running Running total.
	 *
	 * @since 0.1.0
	 */
	public function apply( PriceContext $ctx, Money $running ): Money {
		$override = $ctx->agent_price_override();
		if ( null === $override ) {
			return $running;
		}
		return $override;
	}
}