adds cron job for scraping

index.js

@@ -1,6 +1,7 @@
 require('dotenv').config();
 const express = require("express");
 const server = express();
+const schedule = require('node-schedule');
 const { connect } = require('./lib/repository');
 const thepiratebayScraper = require('./scrapers/thepiratebay/thepiratebay_scraper');
 const horribleSubsScraper = require('./scrapers/horriblesubs/horriblesubs_scraper');
@@ -10,30 +11,28 @@ const rarbgScraper = require('./scrapers/rarbg/rarbg_scraper');
 const thepiratebayDumpScraper = require('./scrapers/thepiratebay/thepiratebay_dump_scraper');
 const thepiratebayUnofficialDumpScraper = require('./scrapers/thepiratebay/thepiratebay_unofficial_dump_scraper');
 
-const providers = [
-  // horribleSubsScraper,
+const PROVIDERS = [
+  horribleSubsScraper,
   rarbgScraper,
-  // thepiratebayScraper,
-  // kickassScraper,
-  // leetxScraper
+  thepiratebayScraper,
+  kickassScraper,
+  leetxScraper
 ];
+const SCRAPE_CRON = process.env.SCRAPE_CRON || '* 0/4 * * * *';
 
 async function scrape() {
-  return providers
-      .reduce((promise, scrapper) => promise.then(() => scrapper.scrape()), Promise.resolve());
+  return PROVIDERS
+      .reduce((promise, scrapper) => promise
+          .then(() => scrapper.scrape().catch(() => Promise.resolve())), Promise.resolve());
 }
 
 server.get('/', function (req, res) {
   res.send(200);
 });
 
-server.post('/scrape', function (req, res) {
-  scrape();
-  res.send(200);
-});
-
 server.listen(process.env.PORT || 7000, async function () {
   await connect();
+  schedule.scheduleJob(SCRAPE_CRON, () => scrape());
   console.log('Scraper started');
   scrape();
 });