'use strict';

const assert = require('assert');
const moment = require('moment');
const Service = require('egg').Service;
class ContentService extends Service {
  constructor(ctx) {
    super(ctx);
    this.model = this.ctx.model.Content;
    this.menuModel = this.ctx.model.Menu;
  }
  async create({ title, describe, source, content, bind, istop, date, thumbnail, recommend, annex, keywords, svip, isShow, status, curtTitle, author, twoTitle }) {
    assert(title, '标题不存在');
    // assert(describe, '描述不存在');
    assert(content, '内容不存在');
    assert(bind, '绑定栏目不存在');
    try {
      const createAt = moment().format('x');
      const updateAt = moment().format('x');
      const item = await this.model.create({ title, twoTitle, describe, author, source, content, bind, istop, date, thumbnail, recommend, annex, createAt, updateAt, keywords, svip, isShow, status, curtTitle });
      return { errcode: 0, errmsg: '', data: item };
    } catch (error) {
      throw error;
    }
  }
  async update({ id, title, describe, author, source, content, bind, istop, date, thumbnail, recommend, annex, keywords, svip, isShow, status, curtTitle, twoTitle }) {
    assert(id, 'id不存在');
    try {
      const res = await this.model.findOne({ _id: id });
      if (!res) return { errcode: -1001, errmsg: '数据不存在', data: '' };
      const updateAt = moment().format('x');
      await this.model.updateOne({ _id: id }, { title, twoTitle, describe, author, source, content, bind, istop, date, thumbnail, recommend, annex, updateAt, keywords, svip, isShow, status, curtTitle });
      return { errcode: 0, errmsg: '', data: 'update' };
    } catch (error) {
      throw error;
    }
  }
  async delete({ id }) {
    assert(id, 'id不存在');
    try {
      const res = await this.model.findOne({ _id: id });
      if (!res) return { errcode: -1001, errmsg: '数据不存在', data: '' };
      await this.model.remove({ _id: id });
      return { errcode: 0, errmsg: '', data: 'delete' };
    } catch (error) {
      throw error;
    }
  }
  async query({ skip, limit, title, date, bind, keywords, svip, isShow, status, istop, parentCode, recommend, twoTitle }) {
    if (parentCode) {
      const menus = await this.service.menu.menuList({ code: parentCode });
      const filter = { bind: { $in: menus } };
      const total = await this.model.find({ ...filter }, { content: false });
      const res = await this.model.find({ ...filter }, { content: false })
        .sort({ istop: -1, date: -1 })
        .skip(Number(skip) * Number(limit))
        .limit(Number(limit));
      return { errcode: 0, errmsg: '', data: res, total: total.length };
    }

    const filter = {};
    const arr = { title, date, keywords, svip, isShow, status, istop, twoTitle };
    for (const e in arr) {
      let datas;
      if (e === 'keywords') {
        datas = `{ "${e}": { "$elemMatch": { "$eq": "${arr[e]}" } } }`;
      } else {
        datas = `{ "${e}": { "$regex": "${arr[e]}" } }`;
      }
      if (arr[e]) {
        filter.$or = [];
        filter.$or.push(JSON.parse(datas));
      }
    }
    if (recommend) filter.recommend = recommend;
    if (bind) filter.bind = bind;
    try {
      let res;
      const total = await this.model.find({ ...filter }, { content: false });
      if (skip && limit) {
        res = await this.model.find({ ...filter }, { content: false })
          .sort({ istop: -1, date: -1 })
          .skip(Number(skip) * Number(limit))
          .limit(Number(limit));
      } else {
        res = await this.model.find({ ...filter }, { content: false }).sort({ istop: -1, date: -1 });
      }
      return { errcode: 0, errmsg: '', data: res, total: total.length };
    } catch (error) {
      throw error;
    }
  }
  async fetch({ id }) {
    try {
      const res = await this.model.findOne({ _id: id });
      if (!res) return { errcode: -1001, errmsg: '数据不存在', data: '' };
      await this.model.updateOne({ _id: id }, { visit: res.visit + 1 });
      return { errcode: 0, errmsg: '', data: res };
    } catch (error) {
      throw error;
    }
  }
  async search({ search, skip, limit }) {
    try {
      const list = await this.model.find();
      const data = list.filter(e => (e.content.includes(search) || e.title.includes(search)));
      const res = data.slice(Number(skip) * Number(limit), (Number(skip) + 1) * Number(limit));
      return { errcode: 0, errmsg: '', data: res, total: data.length };
    } catch (error) {
      throw error;
    }
  }
}

module.exports = ContentService;