lot/libs/retriever.js
2022-05-12 16:33:35 +01:00

49 lines
1000 B
JavaScript

const jsonfile = require('jsonfile');
const fetch = require('node-fetch');
const fecha = require('fecha');
const { scrapeResults } = require('./scraper');
const file = 'data/data.json';
function lastEvent() {
const dateThen = new Date();
// Tuesday and Friday
// Sun, Mon, *Tue*, Wed, Thu, *Fri*, Sat
// [2, 3 ,4 ,1 ,2 ,3 ,1]
const daySubtractor = [2, 3, 4, 1, 2, 3, 1];
const dayNow = dateThen.getDay();
dateThen.setDate(dateThen.getDate() - daySubtractor[dayNow]);
return fecha.format(dateThen, '/DD-MM-YYYY');
}
function retrieveNew() {
const ystring = lastEvent();
const lotData = jsonfile.readFileSync(file);
const u = `https://www.euro-millions.com/results${ystring}`;
console.log('retrieving:', u);
fetch(u)
.then((res) => res.text())
.then((body) => {
const m = scrapeResults(body);
console.log(m);
lotData.unshift(m);
jsonfile.writeFileSync(file, lotData);
});
}
module.exports = { retrieveNew };