<?php
/**
 * 认证服务.
 *
 * @author nj
 * @date   2021-01-22 11:36:11
 */

namespace Modules\ManageApi\Services;

use App\Constants\ManageConstant;
use App\Repositories\Utils\JwtRepository;
use Cache;
use Str;

class ManageAuthService
{
    /**
     * Jwt受众.
     *
     * @var string
     */
    private $jwtAud = 'manage-users';

    /**
     * 获取存储用户设备Token的缓存Key.
     * @param string $managerUid
     * @return string
     */
    public function getManagerCacheKey($managerUid)
    {
        $cacheKey = 'manager_auth_'. $managerUid;

        return $cacheKey;
    }

    /**
     * 创建单点Jwt.
     * @param string $managerUid 管理员UID
     * @param int $roleId 角色ID
     * @return array
     * @throws \Psr\SimpleCache\InvalidArgumentException
     */
    public function createSingleJwt($managerUid, $roleId)
    {
        $manager = new \stdClass();
        $manager->manager_uid = $managerUid;
        $manager->role_id = $roleId;
        /**
         * @var JwtRepository $jwtRepository
         */
        $jwtRepository = make(JwtRepository::class);
        $tokenInfo = $jwtRepository->createManageJwt($manager);
        $token = $tokenInfo['token'];

        $cacheKey = $this->getManagerCacheKey($managerUid);
        /**
         * @var Cache $cache
         */
        $cache = make('cache');
        $cacheToken = $cache->has($cacheKey) ? $cache->get($cacheKey) : '';
        if (!empty($cacheToken)) {
            $cache->delete($cacheKey);
        }
        $cache->set($cacheKey, $token, config('jwt.ttl') * 60);

        return $tokenInfo;
    }

    /**
     * 获取头部Token.
     * @return mixed
     */
    public function getHeaderToken()
    {
        $token = request()->header(ManageConstant::MG_TOKEN_NAME, null);
        if (empty($token)) {
            // 支持GET/PUT获取token
            $token = request()->input(ManageConstant::MG_TOKEN_NAME, null);
        }

        return $token;
    }

    /**
     * 获取Token中的ManagerInfo
     * @return array  返回manager_uid, role_id
     */
    public function getManagerInfo()
    {
        $managerInfo = [];
        $token = $this->getHeaderToken();
        if (!empty($token)) {
            /**
             * @var JwtRepository $jwtRepository
             */
            $jwtRepository = make(JwtRepository::class);
            $validateResult = $jwtRepository->validateToken($token, $this->jwtAud);
            if ($validateResult['is_valid']) {
                $claim = $validateResult['token_obj']->claims();
                $managerInfo = [
                    'manager_uid' => !empty($claim->get('manager_uid')) ? $claim->get('manager_uid') : '',
                    'role_id' => !empty($claim->get('role_id')) ? $claim->get('role_id') : 0,
                ];
            }
        }

        return $managerInfo;
    }
}