<?php
/**
 * Port for checking and flushing a Redis configuration.
 *
 * @package Akantio\Cache
 */

declare(strict_types=1);

namespace Akantio\Cache\Application\ObjectCache;

interface RedisProbe {

	/**
	 * Connects, authenticates and pings.
	 *
	 * @param array<string, mixed> $config Runtime "redis" section.
	 */
	public function check( array $config ): ProbeResult;

	/**
	 * Deletes every key of this site's prefix.
	 *
	 * @param array<string, mixed> $config Runtime "redis" section.
	 * @return int Keys deleted.
	 * @throws BackendUnavailable When Redis is unreachable.
	 */
	public function flush( array $config ): int;
}