<?php
/**
 * Minimum completion time check.
 *
 * @package ZeroSpamForms
 */

namespace TwoOTwoCode\ZeroSpamForms\Engine\Checks;

defined( 'ABSPATH' ) || exit;

use TwoOTwoCode\ZeroSpamForms\Engine\CheckResult;
use TwoOTwoCode\ZeroSpamForms\Engine\ReasonCodeRegistry;
use TwoOTwoCode\ZeroSpamForms\Engine\SettingsSnapshot;
use TwoOTwoCode\ZeroSpamForms\Engine\SpamCheckInterface;
use TwoOTwoCode\ZeroSpamForms\Engine\SubmissionContext;

/**
 * Flags submissions completed faster than a human-like threshold.
 */
final class MinimumTimeCheck implements SpamCheckInterface {
	/**
	 * Get check name.
	 */
	public function get_name(): string {
		return 'minimum_time';
	}

	/**
	 * Whether the check is enabled.
	 *
	 * @param SettingsSnapshot $settings Immutable settings snapshot.
	 */
	public function is_enabled( SettingsSnapshot $settings ): bool {
		return $settings->is_check_enabled( 'minimum_time_check_enabled' );
	}

	/**
	 * Evaluate completion time.
	 *
	 * @param SubmissionContext $context  Normalized submission context.
	 * @param SettingsSnapshot  $settings Immutable settings snapshot.
	 */
	public function evaluate( SubmissionContext $context, SettingsSnapshot $settings ): CheckResult {
		$completion_time = $context->get_completion_time_seconds();

		if ( null === $completion_time ) {
			return CheckResult::pass();
		}

		if ( $completion_time < $settings->get_minimum_fill_time_seconds() ) {
			if ( SettingsSnapshot::STRICTNESS_SAFE === $settings->get_strictness() ) {
				return CheckResult::pass();
			}

			if ( SettingsSnapshot::STRICTNESS_STRICT === $settings->get_strictness() ) {
				return CheckResult::block( ReasonCodeRegistry::TOO_FAST );
			}

			return CheckResult::suspicious( ReasonCodeRegistry::TOO_FAST );
		}

		return CheckResult::pass();
	}
}