require('dotenv').config();
const express = require('express');
const cors    = require('cors');
const { Pool, types } = require('pg');

// Return bigint (oid 20) and numeric (oid 1700) as JS numbers instead of strings,
// so apache-arrow's tableFromJSON infers Int/Float64 rather than Dictionary<Utf8>.
types.setTypeParser(20, v => v === null ? null : Number(v));
types.setTypeParser(1700, v => v === null ? null : Number(v));

const app = express();
app.use(cors());
app.use(express.json());
app.use(express.static('public/app'));

const pool = new Pool({
    host:     process.env.DB_HOST,
    port:     parseInt(process.env.DB_PORT) || 5432,
    database: process.env.DB_NAME,
    user:     process.env.DB_USER,
    password: process.env.DB_PASSWORD,
    ssl:      false
});

pool.on('error', (err) => {
    console.error('pg pool error', err);
});

app.use('/api', require('./routes/tables')(pool));
app.use('/api', require('./routes/sources')(pool));
app.use('/api', require('./routes/versions')(pool));
app.use('/api', require('./routes/operations')(pool));
app.use('/api', require('./routes/log')(pool));


const port = process.env.PORT || 3010;
app.listen(port, '0.0.0.0', () => console.log(`pf_app started on port ${port}`));