David Fencl
64 lines
2.3 KiB
TypeScript
64 lines
2.3 KiB
TypeScript
import axios from 'axios';
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import * as cheerio from 'cheerio';
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import fs from 'fs';
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import https from 'https';
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async function compare() {
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const URL = 'https://www.pvl.cz/portal/nadrze/cz/pc/Mereni.aspx?oid=1&id=VLL1';
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const agent = new https.Agent({ rejectUnauthorized: false });
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const response = await axios.get(URL, { httpsAgent: agent });
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const $ = cheerio.load(response.data);
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let tblFound = null;
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$('table').each((i, tbl) => {
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if ($(tbl).text().includes('Datum') && $(tbl).text().includes('Odtok')) {
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tblFound = $(tbl);
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}
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});
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const pvlRows = [];
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if (tblFound) {
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tblFound.find('tr').each((i, row) => {
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if (i === 0) return;
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const cols = $(row).find('td');
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if (cols.length >= 3) {
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const rawDate = $(cols[0]).text().trim();
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const levelStr = $(cols[1]).text().trim().replace(',', '.');
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let flowStr = $(cols[2]).text().trim().replace(',', '.');
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if (flowStr === '' && cols.length >= 4) {
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flowStr = $(cols[3]).text().trim().replace(',', '.');
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}
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pvlRows.push({
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date: rawDate,
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level: parseFloat(levelStr),
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flow: parseFloat(flowStr)
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});
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}
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});
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}
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const localData = JSON.parse(fs.readFileSync('public/data/VLL1.json', 'utf-8'));
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// Sort local data descending (newest first) to match PVL which is newest first
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const sortedLocal = localData.sort((a, b) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime());
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console.log('--- POROVNÁNÍ DAT: LIPNO 1 ---');
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console.log(String('PVL.CZ').padEnd(40) + ' | ' + 'NAŠE LOKÁLNÍ DATABÁZE');
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console.log('-'.repeat(85));
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for (let i = 0; i < Math.min(10, pvlRows.length); i++) {
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const p = pvlRows[i];
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const l = sortedLocal[i];
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// Format our local UTC timestamp back to something readable
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const d = new Date(l.timestamp);
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const localDateStr = `${d.getDate().toString().padStart(2, '0')}.${(d.getMonth()+1).toString().padStart(2, '0')}.${d.getFullYear()} ${d.getHours().toString().padStart(2, '0')}:${d.getMinutes().toString().padStart(2, '0')}`;
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const pvlStr = `[${p.date}] H: ${p.level} m, O: ${p.flow} m3/s`.padEnd(40);
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const locStr = `[${localDateStr}] H: ${l.level} m, O: ${l.flow} m3/s, P: ${l.inflow} m3/s`;
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console.log(`${pvlStr} | ${locStr}`);
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}
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}
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compare().catch(console.error);
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