<?php

declare( strict_types=1 );

namespace AcezSeo\Data;

if ( ! defined( 'ABSPATH' ) )
{
	exit;
}

/**
 * License key storage — the foundation for a future Pro tier. The free
 * version is fully functional without a key; a saved key currently gets the
 * status 'saved' (no remote activation exists yet). When a licensing server
 * appears, plug the real check into the `acez_seo_license_status` filter or
 * extend this class — the storage shape and UI won't need to change.
 */
final class LicenseRepository implements LicenseRepositoryInterface
{
	private const OPTION_NAME = 'acez_seo_license';

	public const STATUS_FREE  = 'free';
	public const STATUS_SAVED = 'saved';

	/**
	 * @return array{key: string, status: string}
	 */
	public function get(): array
	{
		$stored = get_option( self::OPTION_NAME, array() );
		$stored = is_array( $stored ) ? $stored : array();

		$key    = (string) ( $stored['key'] ?? '' );
		$status = '' === $key ? self::STATUS_FREE : self::STATUS_SAVED;

		/**
		 * Filters the resolved license status — the extension point for a
		 * future remote activation check ('active', 'expired', ...).
		 *
		 * @param string $status
		 * @param string $key
		 */
		$status = (string) apply_filters( 'acez_seo_license_status', $status, $key );

		return array(
			'key'    => $key,
			'status' => $status,
		);
	}

	public function update_key( string $key ): bool
	{
		return update_option(
			self::OPTION_NAME,
			array(
				'key' => sanitize_text_field( trim( $key ) ),
			)
		);
	}
}