/**
 * Created by WebStorm.
 * User: martin
 * Date: 15/04/2020
 * Time: 11:55

 */

const cheerio = require('cheerio');

const MasterScraper = require('../lib/scraper');

class IndeedScraper extends MasterScraper {

  constructor() {
    super();
    this.siteurl = 'www.indeed.co.uk';
    this.siteid = 'indeed';
    this.useStone = true;
    this.requestOptions = {
      'url'    : ''
    };

    this.antiAd = /sja\d+/gi;
  }

  // Site specific parts below here

  async breakPage() {
    const $ = this.currentPage;
    const ads = [];

    const sections = $('div.row.result');

    await sections.each(async (index, item) => {
      // console.log($(item).html());
      const ad = await this.extractDetails(item);

      if (ad !== null)
        ads.push(ad);

      console.log(ads);
//        console.log('<<<<<<<<<>>>>>>>>>');
    });

    this.items = [...this.items, ...ads];
  }

  async extractDetails(part) {
    const newObj = {};
    const $part = cheerio.load(part);
    // console.log($part.html());
    const now = ~~(new Date().getTime() / 1000.0);


    newObj.title = $part('.jobtitle').text().trim();
    newObj.site = this.siteid;
    // newObj.url = `https://${ this.siteurl }${$part('.jobtitle').attr('href')}`;
    newObj.url = this.makeUrl($part('.jobtitle').attr('href'));
    newObj.id = $part('h2.title a').attr('id').trim();
    newObj.summary = $part('.summary').text().trim();

    newObj.company = $part('.company').text().trim() || null;

    newObj.location = $part('.location').text().trim();

    newObj.postDate = $part('.date').text().trim();

    newObj.salary = $part('.salary.no-wrap').text().trim();

    newObj.isEasyApply = $part('.iaLabel').text().trim() === 'Easily apply';
    newObj.timestamp = now;

    return newObj;
  }

  async getIndividualPage(item) {
    const newItem = {...item};
    console.log('Getting', item.url);
    await this.getContent(item.url)
        .then((html) => {
          const $ = cheerio.load(html);
          newItem.summary = $('#jobDescriptionText').html();

        })
        .catch((err) => console.error(err));
    return newItem;
  }

  async getJobPages() {
    const newItems = [];
    for (let item of this.items) {
      item = await this.getIndividualPage(item);
      newItems.push(item);
    }

    this.items = [...newItems];
  }

  async checkNext() {
    const $ = this.currentPage;
    const next = $('.pagination > *:last-child').attr('href') || '';
    if (next !== '')
      // next = `https://${ this.siteurl }${next}`;
      this.makeUrl(next);

    console.log(next);
  }

  async processSite() {
    console.log('Processing...');

    let nextPage;
    const previousPage = '';
    // do {
    // previousPage = this.url;
    this.items = [];
    await this.getPage();

    await this.breakPage();

    await this.checkNext();

    await this.getJobPages();

    // nextPage = await this.checkNext();

    //  if (nextPage === previousPage) nextPage = '';

    //  this.setStartUrl(nextPage);
    // }while (nextPage !== '');

    await this.filterAdverts();

    await this.addToDB();
    await this.addToMongo();
  }

  async go(location = 'london') {
    this.setStartUrl(`https://www.indeed.co.uk/jobs?as_and=&as_phr=&as_any=Angular+Html+Web+Sql+Delphi+Vb+Vbscript+Php+Ajax+Mysql+Sqlserver+Javascript+Nodejs+vuejs+sveltejs&as_not=React&as_ttl=&as_cmp=&jt=contract&st=&as_src=&salary=&radius=0&l=${encodeURIComponent(location)}&fromage=1&limit=50&sort=&psf=advsrch&from=advancedsearch`);

    await this.processSite().catch((err) => {
      console.error('Indeed Go', err);
    });

    console.log(`Indeed ${location} completed`);
  }

}

module.exports = IndeedScraper;