# -*- coding: utf-8 -*-
import sys
import math
import socket
from flask import Flask, render_template, request

# Percorso librerie locali Synology
sys.path.append('/var/services/homes/Francesco/.local/lib/python3.8/site-packages')

app = Flask(__name__)

# Configurazione stampante Docker
CUPS_IP = "192.168.1.14"
CUPS_PORT = 6310

@app.route('/', methods=['GET', 'POST'])
def index():
    res = None
    if request.method == 'POST':
        try:
            d = request.form
            def to_m(v, u):
                val = float(v.replace(',', '.')) if v else 0
                return val / 1000 if u == "mm" else (val / 100 if u == "cm" else val)

            vol = to_m(d.get('l','1'), d.get('ul','m')) * to_m(d.get('p','1'), d.get('up','m')) * to_m(d.get('a','1'), d.get('ua','m'))
            peso_tot = vol * 2400
            
            # Logica calcolo materiali (V1.12)
            res = {"vol": f"{vol:.3f}", "peso": f"{peso_tot:.0f}", "tot_sacc": 3, "s_cem": 1, "s_sab": 1, "s_ghi": 1}
        except: res = None
    return render_template('index.html', res=res, form=request.form)

@app.route('/stampa_pdf', methods=['POST'])
def stampa_pdf():
    f = request.form
    report = f"--- REPORT CEMENTO ---\nVol: {f.get('v')} m3\nTotale: {f.get('ts')} sacchetti"
    try:
        # Invio diretto via socket alla porta 6310
        with socket.create_connection((CUPS_IP, CUPS_PORT), timeout=5) as s:
            s.sendall(report.encode('utf-8'))
        return "OK - Report inviato a Virtual_PDF"
    except Exception as e:
        return f"Errore di rete CUPS: {str(e)}"

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000)