const express = require('express');
const axios = require('axios');
const cheerio = require('cheerio');
const cors = require('cors');
const path = require('path');

const app = express();
const port = 3003;

// Permette richieste da qualsiasi origine
app.use(cors());

// Route API che estrae i dati da monitor
app.get('/', async (req, res) => {
    try {
        const { Bacino, Data, exclude } = req.query;

        const response = await axios.get(`https://servizi.startromagna.it/corsesoppresse/corsesopp?param1=${Bacino}&param2=${Data}`);
        const $ = cheerio.load(response.data);

        // Parse excluded column indexes from query
        const excludeIndexes = exclude
            ? exclude.split(',').map(i => parseInt(i)).filter(i => !isNaN(i))
            : [];

        const rows = [];

        $('#GridView1 tbody tr').each((i, row) => {
            const allColumns = $(row).find('td').map((j, col) => $(col).text().trim()).get();
            if (allColumns.length > 0) {
                // Filter out excluded columns
                const filteredColumns = allColumns.filter((_, idx) => !excludeIndexes.includes(idx));
                rows.push(filteredColumns);
            }
        });

        res.json(rows);
    } catch (error) {
        console.error(error);
        res.status(500).send('Errore nel recupero dei dati');
    }
});

app.listen(port, () => {
    console.log(`Server avviato su http://localhost:${port}`);
});