'use strict';

const Service = require('egg').Service;
const assert = require('assert');
const crypto = require('crypto');
class UserService extends Service {
  async login({ acct, password }) {
    assert(acct, '帐号不存在');
    assert(password, '密码不存在');
    const { AdminUser: model } = this.ctx.model;
    const hash = crypto.createHmac('sha256', this.app.config.userSecret);
    const pwd = hash.update(password).digest('hex');
    try {
      const res = await model.find({ acct });
      if (res.state !== 0) {
        return { errmsg: '用户状态异常', errcode: -2003 };
      }
      if (res.password !== pwd) {
        return { errmsg: '密码错误', errcode: -2003 };
      }
      const token = this.app.jwt.sign(res, this.app.config.jwt.secret);
      return { errmsg: '', errcode: 0, token };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '登录失败' });
    }
  }
}

module.exports = UserService;