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

//
class UserService extends CrudService {
  constructor(ctx) {
    super(ctx, 'user');
    this.mysql = this.ctx.service.mysql;
    this.userRelation = this.ctx.model.UserRelation;
  }
  async query({ superior_id, ...others }, { skip = 0, limit = 0 } = {}) {
    assert(superior_id, '缺少查询信息');
    // 通过上级id找关系
    const relation = await this.userRelation.find({ superior_id }).skip(parseInt(skip)).limit(parseInt(limit));
    const total = await this.userRelation.count({ superior_id });
    // 确定好是哪些用户,然后拿id换用户信息
    const ids = relation.map(i => i.user_id);
    if (ids.length <= 0) return { data: [], total };
    const table = 'sys_user';
    let { data } = await this.mysql.query(table, { user_id: ids, ...others });
    data = data.map(i => _.omit(i, [ 'password' ]));
    // 将key转换成java部分的驼峰显示
    data = data.map(i => {
      const keys = Object.keys(i);
      const newObject = {};
      for (const key of keys) {
        const value = i[key];
        const newKey = _.camelCase(key);
        newObject[newKey] = value;
      }
      return newObject;
    });
    return { data, total };

  }

  // 创建上下级用户关系
  async create(body) {
    const data = await this.userRelation.create(body);
    return data;
  }
  // 删除上下级用户关系
  async delete({ id }) {
    const result = await this.userRelation.deleteOne({ user_id: id });
    return result;
  }
}

module.exports = UserService;