'use strict';

const assert = require('assert');
const _ = require('lodash');
const { CrudService } = require('naf-framework-mongoose/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;
const jwt = require('jsonwebtoken');
const uuid = require('uuid');

class LoginService extends CrudService {
  constructor(ctx) {
    super(ctx, 'login');
    this.model = this.ctx.model.User;
    this.rmodel = this.ctx.model.Role;
  }

  // 用户登录
  async login(data) {
    const { mobile, passwd } = data;
    // 根据用户输入的手机号查询其他用户表中是否存在相应数据
    const user = await this.model.findOne({ mobile });
    // 如果用户不存在抛出异常
    if (!user) {
      throw new BusinessError(ErrorCode.USER_NOT_EXIST);
    }
    const _user = await this.model.findOne({ mobile }, '+passwd');
    // 将用户输入的密码进行加密并与查询到的用户数据密码相比对
    const pas = await this.createJwtPwd(passwd);
    // 如果两个密码不一致抛出异常
    if (pas !== _user.passwd.secret) {
      throw new BusinessError(ErrorCode.BAD_PASSWORD);
    }
    // 取出用户的类型，根据用户类型返回相应信息
    const state = uuid();
    const key = `free:auth:state:${state}`;
    const token = await this.createJwt(user);
    console.log('key--' + key);
    console.log('token--' + token);
    await this.app.redis.set(key, token, 'EX', 60 * 60 * 24);
    return { key };
  }

  // 创建登录Token
  async createJwtPwd(password) {
    const { secret, expiresIn, issuer } = this.config.jwt;
    const token = await jwt.sign(password, secret);
    return token;
  }

  // 创建登录Token
  async createJwt({ id, name, mobile, roles, remark, openid }) {
    const { secret, expiresIn = '1d', issuer = type } = this.config.jwt;
    const subject = mobile;
    const res = { uid: id, name, mobile, roles, openid, remark };
    const token = await jwt.sign(res, secret, { expiresIn, issuer, subject });
    return token;
  }

  // 取得redis内token信息
  async token({ key }) {
    assert(key, 'key不能为空');
    const token = await this.app.redis.get(key);
    if (!token) {
      throw new BusinessError(ErrorCode.SERVICE_FAULT, 'token已经过期');
    }
    return { token };
  }

  // 删除操作
  async destroy({ key }) {
    const res = await this.app.redis.del(key);
    console.log(res);
    return res;
  }


}
module.exports = LoginService;