'use strict';
const _ = require('lodash');
const moment = require('moment');
const { CrudService } = require('naf-framework-mongoose/lib/service');
const { ObjectId } = require('mongoose').Types;
const { BusinessError, ErrorCode } = require('naf-core').Error;
const fs = require('fs');
class UtilService extends CrudService {
  constructor(ctx) {
    super(ctx);
    this.mq = this.ctx.mq;
    this.projectList = this.app.config.project;
  }
  async utilMethod(query, body) {}

  dealQuery(query) {
    return this.turnFilter(this.turnDateRangeQuery(query));
  }

  analyzeUrl() {
    const request = this.ctx.request;
    let { method, url } = request;
    method = _.lowerCase(method);
    if (url.includes('/api/m/site')) {
      // TODO 通过网站进来的,如果是GET方法=>计数;然后将site去掉
      url = url.replace('/site', '');
    }
    const nUrl = this.dealUrl(url);
    const res = { url: nUrl, method };
    // 处理body
    if (method === 'post' || method === 'delete') {
      res.body = this.ctx.request.body;
    }
    return res;
  }

  dealUrl(url) {
    let arr = url.split('/');
    // 前3个属于中间层入口,干掉,直接干掉
    arr = _.drop(arr, 3);
    // 取出项目
    const project = _.head(arr);
    const uri = `/${_.drop(arr, 1).join('/')}`;
    const prefix = this.projectList[project];
    if (!prefix) throw new BusinessError(ErrorCode.SERVICE_FAULT, '未设置该project');
    return `${prefix}${uri}`;
  }

  /**
   * 将查询条件中模糊查询的标识转换成对应object
   * @param {Object} filter 查询条件
   */
  turnFilter(filter) {
    const str = /^%\S*%$/;
    const keys = Object.keys(filter);
    for (const key of keys) {
      const res = key.match(str);
      if (res) {
        const newKey = key.slice(1, key.length - 1);
        filter[newKey] = new RegExp(filter[key]);
        delete filter[key];
      }
    }
    return filter;
  }
  /**
   * 将时间转换成对应查询Object
   * @param {Object} filter 查询条件
   */
  turnDateRangeQuery(filter) {
    const keys = Object.keys(filter);
    for (const k of keys) {
      if (k.includes('@')) {
        const karr = k.split('@');
        //  因为是针对处理范围日期,所以必须只有,开始时间和结束时间
        if (karr.length === 2) {
          const type = karr[1];
          if (type === 'start') {
            filter[karr[0]] = {
              ..._.get(filter, karr[0], {}),
              $gte: filter[k],
            };
          } else {
            filter[karr[0]] = {
              ..._.get(filter, karr[0], {}),
              $lte: filter[k],
            };
          }
          delete filter[k];
        }
      }
    }
    return filter;
  }
}
module.exports = UtilService;