<?php
/**
 * 描述.
 *
 * @author nj
 * @date   2021-05-18 20:38:13
 */


namespace Modules\ManageApi\Controllers;


use App\Repositories\ManagerRepository;
use App\Repositories\Utils\JwtRepository;
use Modules\ManageApi\Services\ManageAuthService;
use Modules\ManageApi\Controllers\BaseController;
use Validator;
use App\Repositories\ManagerLogRepository;
use Lcobucci\JWT\Token;
use Otp\Otp;
use Otp\GoogleAuthenticator;
use ParagonIE\ConstantTime\Encoding;

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

    /**
     * 属性描述.
     *
     * @var ManagerLogRepository
     */
    protected $logRepo = null;

    public function login()
    {
        $inputData = $this->getJsonData();

        /**
         * @var Validator $validatorFactory
         */
        $validatorFactory = app('validator');

        /**
         * @var ManagerRepository $managerRepo
         */
        $managerRepo = app(ManagerRepository::class);

        /**
         * @var ManageAuthService $authService
         */
        $authService = app(ManageAuthService::class);

        $rules = [
            'account' => 'required|max:120',
            'password' => 'required|max:64',
            'verify' => 'nullable|max:12',
            'ggcode' => 'nullable|max:10',
        ];
        $validator = $validatorFactory->make($inputData, $rules);

        if ($validator->fails()) {
            // 如果有错误（可能是多个信息），这里只取第一个错误信息返回.
            return json_fail($validator->errors()->first());
        }

        // 查询字段.
        $columns = [
            'id', 'manager_uid', 'username', 'nick', 'role_id', 'password', 'salt', 'locked_at', 'otp_secret',
        ];
        // 条件.
        $conditions = ['username' => $inputData['account']];
        $managers = $managerRepo->findWhere($conditions, $columns);
        // 先判断是否存在用户.
        if ($managers->count() == 0) {
            $logSubject = '后台登陆获取token失败;原因:无此账号;入参:account['. $inputData['account'] .'];密码:['. pass_encode($inputData['password']) .']';
            $logSvalue = '';
            $logDbData = [];
            $this->log($logSubject, $logSvalue, $logDbData);

            // 给一个不容易分析的错误信息给前台.
            return json_fail('账号或者密码错误.');
        }
        // 取第一个用户.
        $manager = $managers->first();
        $md5password = $managerRepo->generatePassword($inputData['password'], $manager->salt);
        if ($manager->password !== $md5password) {
            $logSubject = '后台登陆获取token失败;原因:密码错误;入参:account['. $inputData['account'] .'];密码:['. pass_encode($inputData['password']) .']';
            $logSvalue = '';
            $logDbData = [];
            $this->log($logSubject, $logSvalue, $logDbData);

            return json_fail('账号或者密码错误.');
        }
        $ggcode = isset($inputData['ggcode']) ? $inputData['ggcode'] : '';
        $isOpenOtp =  boolval(env('OTP_OPEN', true)); //是否开启谷歌身份码验证功能
        if ($isOpenOtp) {
            if (empty($ggcode)) {
                return json_fail('请填写身份码.');
            }
            $otp = new Otp();
            $otpSecret = !empty($manager->otp_secret) ? $manager->otp_secret : GoogleAuthenticator::generateRandom();
            $otpCheckResult = $otp->checkTotp(Encoding::base32DecodeUpper($otpSecret), $ggcode);
            if (!$otpCheckResult) {
                $logSubject = '后台登陆获取token失败;原因:OTP错误;入参:account['. $inputData['account'] .'];密码:['. pass_encode($inputData['password']) .'];otp:['. pass_encode($ggcode) .']';
                $logSvalue = '';
                $logDbData = [];
                $this->log($logSubject, $logSvalue, $logDbData);

                return json_fail('身份码不正确');
            }
        }
        if (!empty($manager->locked_at)) {
            $logSubject = '后台登陆获取token失败;原因:被锁定;入参:account['. $inputData['account'] .'];密码:['. pass_encode($inputData['password']) .']';
            $logSvalue = '';
            $logDbData = [];
            $this->log($logSubject, $logSvalue, $logDbData);

            return json_fail('您已经被锁定，无法登陆.');
        }
        $logSubject = '后台登录成功';
        $logSvalue = $manager->manager_uid;
        list($module, $action) = $this->getModuleAndAction();
        $inputs = [
            'manager_uid' => $manager->manager_uid,
            'username' => $manager->username,
            'nick' => $manager->nick,
            'subject' => mb_strcut($logSubject, 0, 700),
            'module' => $module,
            'action' => $action,
            'svalue' => !empty($logSvalue) ? $logSvalue : '',
            'db_data' => [],
        ];

        $this->getLogRepo()->createOne($inputs);

        $tokenInfo = $authService->createSingleJwt($manager->manager_uid, $manager->role_id);

        $data = [
            'token' => $tokenInfo['token'],
            'expired_at' => $tokenInfo['expired_at'],
            'manager_uid' => $manager->manager_uid,
        ];

        return json_success($data);
    }

    public function logout()
    {
    }

    /**
     * 刷新Token并返回token.
     * @param  mixed  $validatorFactory
     * @param  JwtRepository  $jwtRepository
     * @param  ManageAuthService  $authService
     * @return mixed
     * @throws \Psr\SimpleCache\InvalidArgumentException
     */
    public function refreshToken() {

        /**
         * @var Validator $validatorFactory
         */
        $validatorFactory = app('validator');

        /**
         * @var ManagerRepository $managerRepo
         */
        $managerRepo = app(ManagerRepository::class);

        /**
         * @var ManageAuthService $authService
         */
        $authService = app(ManageAuthService::class);
        /**
         * @var JwtRepository $jwtRepository
         */
        $jwtRepository = app(JwtRepository::class);

        $inputData = $this->getJsonData();
        $rules = [
            'manager_uid' => 'required',
            'old_token' => 'required',
        ];
        $validator = $validatorFactory->make($inputData, $rules);
        if ($validator->fails()) {
            // 如果有错误（可能是多个信息），这里只取第一个错误信息返回.
            return json_fail($validator->errors()->first());
        }
        $validateResult = $jwtRepository->validateToken($inputData['old_token'], $this->jwtAud);
        if ($validateResult['is_illegal']) {
            return json_fail('无效数据传入.');
        }
        if (!$validateResult['is_valid']) {
            return json_fail('旧Token无效.');
        }
        /*if (!$validateResult['is_expired']) {
            // 旧token没过期
            return json_fail('旧token怎么了');
        }*/
        /**
         * @var Token $tokenObj
         */
        $tokenObj = $validateResult['token_obj'];
        $claims = $tokenObj->claims();
        $managerUid = $claims->get('manager_uid');
        $roleId = $claims->get('role_id');
        // 检查入参设备信息是否有效.
        if ($managerUid != $inputData['manager_uid']) {
            $logSubject = '后台登陆刷新token失败;原因:入参manager_uid和token中的manager_uid不一致;入参:manager_uid['. $inputData['manager_uid'] .']';
            $logSvalue = '';
            $logDbData = [];
            $this->log($logSubject, $logSvalue, $logDbData);

            return json_fail('无效数据匹配.');
        }
        $tokenInfo = $authService->createSingleJwt($managerUid, $roleId);

        $data = [
            'token' => $tokenInfo['token'],
            'expired_at' => $tokenInfo['expired_at'],
        ];

        return json_success($data);
    }

    /**
     * php ping
     * @return string
     */
    public function ping()
    {
        return 'pong';
    }

    /**
     * 记录操作日志.
     * @param string $subject 主题.
     * @param  string  $svalue 关联数据.
     * @param  array  $dbData 此数组数据结构一定要是["after_items" => [0, 1, 2], "before_items" => [0, 1, 2]], after_items,before_items 是一个二维码数组.
     * @return bool
     */
    protected function log(string $subject, $svalue = '', $dbData = [])
    {
        list($module, $action) = $this->getModuleAndAction();
        $inputs = [
            'manager_uid' => '',
            'username' => '',
            'nick' => '匿名',
            'subject' => mb_strcut((string)$subject, 0, 700),
            'module' => $module,
            'action' => $action,
            'svalue' => !empty($svalue) ? mb_strcut((string)$svalue, 0, 700) : '',
            'db_data' => $dbData,
        ];

        $this->getLogRepo()->createOne($inputs);

        return true;
    }

    /**
     * 获取日志仓库.
     * @return ManagerLogRepository|null
     */
    protected function getLogRepo()
    {
        if (empty($this->logRepo)) {
            $this->logRepo = make(ManagerLogRepository::class);
        }

        return $this->logRepo;
    }
}