const express = require('express');
const _ = require('lodash');
const { query, body } = require('express-validator');
const { onSuccess, fill } = require('../../../utils');
const { limit } = require('../../config');
const check = require('../../../middleware/check');
const Problem = require('../../../db/models/problem');

const router = express.Router();

async function fillSingle(data) {
  return data;
}
/**
 * showdoc
 * @catalog v1/后台/常见问题
 * @title 常见问题列表
 * @description 常见问题列表接口
 * @method GET
 * @url  /master/problem/
 * @param  page 0 Int 页码: 不传默认取第1页数据，每页20条数据
 * @return {"code":0, "count":1, "data": []}
 * @return_param  id integer id
 * @return_param  name string 问题名称
 * @return_param  tid integer 类型ID
 * @return_param  content text 问题内容
 * @return_param  createdAt date -
 * @return_param  updatedAt date -
 * @remark
 * @number
 */
router.get('/', async (req, res) => {
  const { page = 0 } = req.query;
  const where = _.omit(req.query, ['page']);
  const info = onSuccess();
  info.data = await Problem.findAll({ where, limit, offset: page * limit });

  info.data = await fill(info.data, fillSingle);
  if (!page) {
    info.count = await Problem.count({ where });
  }
  res.send(info);
});
/**
 * showdoc
 * @catalog v1/后台/常见问题
 * @title 常见问题详情
 * @description
 * @method GET
 * @url  /master/problem/:id
 * @param  :id 1 STRING 详情ID
 * @return {"code":0, "data": {}}
 * @return_param  id integer id
 * @return_param  name string 问题名称
 * @return_param  tid integer 类型ID
 * @return_param  content text 问题内容
 * @return_param  createdAt date -
 * @return_param  updatedAt date -
 * @remark
 * @number
 */
router.get('/:id', async (req, res) => {
  let data = await Problem.findOne({ where: req.params });
  data = await fill(data, fillSingle);
  res.send(onSuccess(data));
});
/**
 * showdoc
 * @catalog v1/后台/常见问题
 * @title 常见问题添加
 * @description
 * @method POST
 * @url  /master/problem/
 * @param  name  string 问题名称
 * @param  tid  integer 类型ID
 * @param  content  text 问题内容
 * @return {"code":0, "data": {}}
 * @remark
 * @number
 */
router.post('/', check([body([]).notEmpty()]), async (req, res) => {
  const data = await Problem.create(req.body);
  res.send(onSuccess(data));
});

/**
 * showdoc
 * @catalog v1/后台/常见问题
 * @title 常见问题修改
 * @description
 * @method PUT
 * @url  /master/problem/:id
 * @param  :id 1 STRING 详情ID
 * @param name  string 问题名称
 * @param tid  integer 类型ID
 * @param content  text 问题内容
 * @return {"code":0, "msg": "修改成功"}
 * @remark
 * @number
 */
router.put('/:id', async (req, res) => {
  const data = await Problem.update(req.body, { where: req.params, limit: 1 });
  res.send(onSuccess(null, '修改成功'));
});

/**
 * showdoc
 * @catalog v1/后台/常见问题
 * @title 常见问题删除
 * @description
 * @method DELETE
 * @url  /master/problem/:id
 * @param  :id 1 STRING 详情ID
 * @return {"status":0, "msg": "删除成功"}
 * @remark
 * @number
 */
router.delete('/:id', async (req, res) => {
  const data = await Problem.destroy({ where: req.params, limit: 1 });
  res.send(onSuccess(null, '删除成功'));
});

module.exports = router;