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

// 科技频道
class ChannelService extends CrudService {
  constructor(ctx) {
    super(ctx, 'channel');
    this.model = this.ctx.model.Channel;
  }

  async create(body) {
    const last = await this.model.findOne().sort({ room_id: -1 });
    let room_id = 2001;
    if (last) room_id = last.room_id + 1;
    body.room_id = room_id;
    body.passwd = { secret: room_id };
    return await this.model.create(body);
  }

  /**
   * 管理者登陆
   * @param {Object} { room_id, passwd } 登陆参数
   * @property {String} room_id 房间号
   * @property {String} passwd 密码
   */
  async login({ room_id, passwd }) {
    const object = await this.model.findOne({ room_id }, '+passwd');
    if (!object) throw new BusinessError(ErrorCode.DATA_NOT_EXIST, `未找到展会号为: ${room_id} 的展会`);
    const op = _.get(object, 'passwd.secret');
    if (!_.isEqual(op, passwd)) throw new BusinessError(ErrorCode.BAD_PASSWORD, '密码错误');
    const data = _.omit(JSON.parse(JSON.stringify(object)), [ 'meta', 'passwd', '__v' ]);
    const { secret: jwts } = this.config.jwt;
    const token = jwt.sign(data, jwts);
    return token;
  }
}

module.exports = ChannelService;