"""Geolocation helpers for the Seasonal Clock"""

from typing import Tuple

from geopy.geocoders import Nominatim
from tzwhere import tzwhere

from . import __version__


def get_geolocator() -> Nominatim:
    """Get the geolocator service"""

    return Nominatim(user_agent=f'gpolonkai-seasonal-clock/{__version__}')


def get_lat_long(country: str, city: str) -> Tuple[float, float]:
    """Get the latitude and longitude based on a country and a city name

    This implicitly communicates with OpenStreetMap’s API and thus needs a working Internet
    connection."""

    locator = get_geolocator()
    geolocation = locator.geocode(f'{city}, {country}', addressdetails=True)

    return geolocation.latitude, geolocation.longitude


def get_country_city(latitude: float, longitude: float) -> Tuple[str, str]:
    """Get the country and city names based on the coordinates

    This implicitly communicates with OpenStreetMap’s API and thus needs a working Internet
    connection."""
    locator = get_geolocator()
    geolocation = locator.reverse(f'{latitude}, {longitude}', addressdetails=True)

    return geolocation.raw['address']['country'], geolocation.raw['address']['city']


def get_timezone(latitude: float, longitude: float) -> str:
    """Get the time zone based on the coordinates"""

    tzlocator = tzwhere.tzwhere()

    return tzlocator.tzNameAt(latitude, longitude)