'use strict';

const Service = require('egg').Service;
const assert = require('assert');
const moment = require('moment');
class ContentService extends Service {
  async create({ title, shortTitle, slug, path, annex, content, istop, columnList }) {
    assert(title, '标题不存在');
    assert(shortTitle, '短标题不存在');
    assert(slug, '摘要不存在');
    assert(path, '缩略图不存在');
    assert(istop, '置顶不存在');
    assert(content, '内容不存在');
    const { Content: model } = this.ctx.model;
    const createAt = moment().format('x');
    try {
      await model.create({ title, shortTitle, slug, path, annex, content, istop, columnList, createAt });
      return { errmsg: '', errcode: 0 };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '添加失败' });
    }
  }
  async update({ title, shortTitle, slug, path, annex, content, istop, columnList, id }) {
    assert(id, 'id不存在');
    const { Content: model } = this.ctx.model;
    try {
      await model.findByIdAndUpdate(id, { title, shortTitle, slug, path, annex, content, istop, columnList });
      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 { Content: model } = this.ctx.model;
    try {
      await model.findByIdAndDelete(id);
      return { errmsg: '', errcode: 0 };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '删除失败' });
    }
  }
  async details({ id }) {
    assert(id, 'id不存在');
    const { Content: model } = this.ctx.model;
    try {
      const res = await model.findById(id);
      return { errmsg: '', errcode: 0, data: res };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '删除失败' });
    }
  }
  async query({ skip, limit }) {
    const { Content: model } = this.ctx.model;
    try {
      let res;
      if (skip && limit) {
        res = await model.find({ content: false }).skip(skip * limit).limit(limit);
      } else {
        res = await model.find({ content: false });
      }
      return { errmsg: '', errcode: 0, data: res };
    } catch (error) {
      throw new Error({ errcode: -2001, errmsg: '查询失败' });
    }
  }
}

module.exports = ContentService;