import requests
from datetime import datetime
import pytz
from timezonefinder import TimezoneFinder
from config import OPEN_METEO_URL

tf = TimezoneFinder()

def get_today_snowfall(lat, lon):
    try:
        tz_name = tf.timezone_at(lat=lat, lng=lon) or "UTC"

        params = {
            "latitude": lat,
            "longitude": lon,
            "hourly": "snowfall",
            "timezone": tz_name
        }

        r = requests.get(OPEN_METEO_URL, params=params, timeout=5)
        r.raise_for_status()
        data = r.json()

        hourly = data.get("hourly", {})
        times = hourly.get("time", [])
        snow_values = hourly.get("snowfall", [])

        today_str = datetime.now(pytz.timezone(tz_name)).date().isoformat()

        snowfall_cm = 0.0
        snowing_now = False
        for t, s in zip(times, snow_values):
            if t.startswith(today_str):
                snowfall_cm += s
                if s > 0:
                    snowing_now = True

        inches = round(snowfall_cm / 2.54, 1)
        return inches, snowing_now, tz_name

    except Exception as e:
        print("Error fetching snowfall:", e)
        return 0.0, False, "UTC"