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

 */

const cheerio = require('cheerio');

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

class TotaljobsScraper extends MasterScraper {

  constructor() {
    super();
    this.siteurl = 'www.totaljobs.com';
    this.siteid = 'totaljobs';
    this.requestOptions = {
      'url'    : ''
    };
  }

  // Site specific parts below here
  /**
   *
   * @returns {Promise<void>}
   */
  async breakPage() {
    const $ = this.currentPage;
    const ads = [];

    const sections = $('div.job');

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

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

  /**
   *
   * @param part
   * @returns {Promise<{}>}
   */
  async extractDetails(part) {
    const newObj = {};
    const $part = cheerio.load(part);
    const now = ~~(new Date().getTime() / 1000.0);

    // console.log($part.html());
    newObj.title = $part('.job-title').text().replace(/(\s*\\n)/g,'').replace(/(\s\s+)/g, ' ').trim().toString();
    newObj.url = $part('.job-title a').attr('href');
    newObj.id = $part('div.job').attr('id').trim();
    newObj.summary = $part('p.job-intro').text().trim();
    newObj.company = $part('.company').text().trim() || null;
    newObj.location = $part('.location > span').text().trim();
    newObj.postDate = $part('.date-posted').text().trim();
    newObj.salary = $part('.salary').text().trim();
    newObj.isEasyApply = false;

    newObj.site = this.siteid;
    newObj.timestamp = now;

    return newObj;
  }

  /**
   *
   * @param item
   * @returns {Promise<*>}
   */
  async getIndividualPage(item) {
    const newItem = {...item};
    console.log('Getting', item.url);
    await this.getContent(item.url)
        .then((html) => {
          console.log(html);
          const $ = cheerio.load(html);
          newItem.summary = $('div.job-description').text().trim();

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

  /**
   *
   * @returns {Promise<void>}
   */
  async getJobPages() {
    const newItems = [];
    for (let item of this.items) {
      console.log(item.title);
      item = await this.getIndividualPage(item);
      newItems.push(item);
    }

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

  /**
   *
   * @returns {Promise<void>}
   */
  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);
  }

  /**
   *
   * @returns {Promise<void>}
   */
  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();
  }

  /**
   *
   * @param location
   * @returns {Promise<void>}
   */
  async go(location = 'london') {
    this.setStartUrl(`https://www.totaljobs.com/jobs/contract/html-or-vue-or-vuejs-or-web-or-sql-or-delphi-or-vb-or-vbscript-or-php-or-ajax-or-mysql-or-sqlserver-or-javascript-or-node-or-nodejs-or-svelte-or-sveltejs-not-react/in-${encodeURIComponent(location)}?q=Html+Or+Vue+Or+Vuejs+Or+Web+Or+Sql+Or+Delphi+Or+Vb+Or+Vbscript+Or+Php+Or+Ajax+Or+Mysql+Or+Sqlserver+Or+Javascript+Or+Node+Or+Nodejs+Or+Svelte+Or+Sveltejs+NOT+React&postedwithin=3&radius=20`);
    // this.setStartUrl('https://www.indeed.co.uk/jobs?as_and=&as_phr=&as_any=javascript+nodejs&as_not=&as_ttl=&as_cmp=&jt=contract&st=&as_src=&salary=&radius=25&l=london&fromage=7&limit=10&sort=date&psf=advsrch&from=advancedsearch');

    // Glasgow
    // https://www.indeed.co.uk/jobs?as_and=&as_phr=&as_any=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=glasgow&fromage=1&limit=50&sort=&psf=advsrch&from=advancedsearch

    await this.processSite();
    console.log(`TotalJobs ${location} completed`);
  }

}

module.exports = TotaljobsScraper;