<?php
/**
 * Adapter registry.
 *
 * @package BRVerify
 */

declare(strict_types=1);

namespace BRVerify\Adapters;

use BRVerify\Contracts\AdapterInterface;

/**
 * Holds registered storage adapters (local free + extended edition remotes via hook).
 */
final class Adapter_Registry {

	/**
	 * Adapters keyed by id.
	 *
	 * @var array<string,AdapterInterface>
	 */
	private array $adapters = array();

	/**
	 * Register an adapter (last writer wins for same id).
	 *
	 * @param AdapterInterface $adapter Adapter instance.
	 */
	public function register( AdapterInterface $adapter ): void {
		$this->adapters[ $adapter->id() ] = $adapter;
	}

	/**
	 * Get adapter by id.
	 *
	 * @param string $id Adapter id.
	 */
	public function get( string $id ): ?AdapterInterface {
		return $this->adapters[ $id ] ?? null;
	}

	/**
	 * All adapters.
	 *
	 * @return array<string,AdapterInterface>
	 */
	public function all(): array {
		return $this->adapters;
	}
}