<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link    https://matomo.org
 * @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */
namespace Piwik\Plugins\FeatureFlags;

interface FeatureFlagStorageInterface
{
    /**
     * Returns true/false depending on if enabled
     *
     * If the flag isn't set for the particular storage context then will return null
     */
    public function isFeatureActive(\Piwik\Plugins\FeatureFlags\FeatureFlagInterface $feature) : ?bool;
    /**
     * @internal
     */
    public function disableFeatureFlag(\Piwik\Plugins\FeatureFlags\FeatureFlagInterface $feature) : void;
    /**
     * @internal
     */
    public function enableFeatureFlag(\Piwik\Plugins\FeatureFlags\FeatureFlagInterface $feature) : void;
    /**
     * Delete a feature flag even if it doesn't exist in code as a class
     *
     * @internal
     */
    public function deleteFeatureFlag(string $featureName) : void;
}
