'use strict';

const Service = require('egg').Service;
const assert = require('assert');
const moment = require('moment');
class RoleService extends Service {
  async create({ name, code, state }) {
    assert(name, '名称不存在');
    assert(code, '编码不存在');
    const { Role: model } = this.ctx.model;
    const createAt = moment().format('x');
    try {
      await model.create({ name, code, createAt, state });
      return { errmsg: '', errcode: 0 };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '添加失败' });
    }
  }
  async update({ name, state, id }) {
    assert(id, 'id不存在');
    const { Role: model } = this.ctx.model;
    try {
      await model.findByIdAndUpdate(id, { name, state });
      return { errmsg: '', errcode: 0 };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '修改失败' });
    }
  }
  async del({ id }) {
    assert(id, 'id不存在');
    const { Role: model } = this.ctx.model;
    const { adminUser: usermodel } = this.ctx.model;
    try {
      const role = await model.findById(id);
      const userList = await usermodel.where('roleLise').in(role.code);
      await model.findOneAndDelete(id);
      userList.forEach(async e => {
        const roleList = e.roleList.filter(p => p !== role.code);
        await usermodel.findByIdAndUpdate(e._id, { roleList });
      });
      return { errmsg: '', errcode: 0 };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '删除失败' });
    }
  }
  async query({ skip, limit, filter }) {
    const { Role: model } = this.ctx.model;
    try {
      let res;
      if (skip && limit) {
        res = await model.find(filter).skip(skip * limit).limit(limit);
      } else {
        res = await model.find(filter);
      }
      return { errmsg: '', errcode: 0, data: res };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '查询失败' });
    }
  }
}

module.exports = RoleService;