<?php

namespace app\common\service;

use app\api\controller\WechatSubscriptController;
use app\common\model\Teacher;
use app\common\model\TimeZone;
use app\constant\ResponseCode;
use think\Exception;
use Tinywan\Jwt\JwtToken;

class TeacherService
{

    /**
     * @desc 登录
     * @param $request
     * @return array
     */
    public function login($request)
    {
        try {
            $teacher = Teacher::where(['account' => $request['account']])->findOrEmpty();
            if ($teacher->isEmpty()) {
                throw new Exception('账号不存在');
            }
//            if (empty($request['password'])) {
//                throw new Exception('请填写密码');
//            }
//
//            if (md5($request['password'] . $teacher->salt) != $teacher->password) {
//                throw new Exception('密码错误，请填写正确的密码');
//            }

            $token_data = [
                'id' => $teacher->id,
                'role' => 'teacher'
            ];
            $token = JwtToken::generateToken($token_data);
//            unset($token['refresh_token']);
            return [
                'code' => ResponseCode::SUCCESS,
                'data' => $token,
                'msg' => 'success'
            ];

        } catch (Exception $e) {
            return [
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ];
        }
    }


    /**
     * @desc 设置时区
     * @param $request
     * @return array|void
     */
    public function setTimeZone($request)
    {
        try {
            if (empty($request->teacher)) {
                throw new Exception('请教师登陆后再设置');
            }
            $teacher = Teacher::where(['id' => $request->teacher->id])->findOrEmpty();
            if ($teacher->isEmpty()) {
                throw new Exception('未找到教师信息，设置失败');
            }

            $time_zone = TimeZone::where(['id' => $request->post('time_zone_id')])->findOrEmpty();

            $res = $teacher->save([
                'time_zone_id' => $time_zone->id,
                'time_zone_name' => $time_zone->name,
                'time_zone_abbr' => $time_zone->abbr,
                'time_zone_offset' => $time_zone->offset,
            ]);
            if (!$res) {
                throw new Exception('设置失败');
            }

            return [
                'code' => ResponseCode::SUCCESS,
                'msg' => '设置成功'
            ];
        } catch (Exception $e) {
            return [
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ];
        }
    }


    /**
     * @desc 教师信息
     * @param $request
     * @return array
     */
    public function teacherInfo($request)
    {
        try {
            $teacher = Teacher::where(['id' => $request->teacher->id])->field('id,account,teacher_name,time_zone_offset,time_zone_id,time_zone_name')->findOrEmpty();
            $teacher = $teacher->toArray();
            $teacher['role'] = 'teacher';
            return [
                'code' => ResponseCode::SUCCESS,
                'data' => $teacher,
            ];
        } catch (Exception $e) {
            return [
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ];
        }
    }

    /**
     * @desc 教师信息
     * @param $request
     * @return array
     */
    public function resetPassword($request)
    {
        try {
            if (empty($request->teacher)) {
                throw new Exception('请先教师登陆');
            }
            $teacher = Teacher::where(['id' => $request->teacher->id])->findOrEmpty();
            if ($teacher->isEmpty()) {
                throw new Exception('未找到教师信息');
            }

            $requestData = $request->post();
            if (empty($requestData['pwd']) || strlen(trim($requestData['pwd'])) < 6) {
                throw new Exception('请输入密码或者长度大于6位');
            }

            $salt = random_str(16);
            $password = md5(trim($requestData['pwd'] . $salt));
            $teacher->save([
                'password' => $password,
                'salt' => $salt
            ]);

            return [
                'code' => ResponseCode::SUCCESS,
                'msg' => '操作成功',
            ];
        } catch (Exception $e) {
            return [
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ];
        }
    }

    /**
     * @desc 更新code
     * @param $request
     * @return array|void
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function updateOpenid($request)
    {
        try {
            if (empty($request->teacher)) {
                throw new Exception('请先教师登陆');
            }
            $teacher = Teacher::where(['id' => $request->teacher->id])->findOrEmpty();
            if ($teacher->isEmpty()) {
                throw new Exception('未找到教师信息');
            }

            $code = $request->post('code');
            $user_info = WechatSubscriptController::getCodeAccessToken($code);

            if (isset($result['code'])) {
                throw new Exception('获取信息失败');
            }
            $openid = $user_info['openid'];
            $teacher = Teacher::where(['id' => $request->teacher->id])->findOrEmpty();
            if ($teacher->openid && $teacher->openid != $openid) {
                throw new Exception('当前账号已绑定其它教师，不能重复绑定');
            } else {
                $teacher->save([
                    'openid' => $openid,
                ]);
            }

            return [
                'code' => ResponseCode::SUCCESS,
                'msg' => 'success'
            ];
        } catch (Exception $e) {
            return [
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ];
        }
    }

}