import logging
from datetime import datetime, timezone
from threading import Thread

import aprslib
import pytz

from core.config import SERVER_OWNER_CALLSIGN
from data.spot import Spot
from spotproviders.spot_provider import SpotProvider


# Spot provider for the APRS-IS.
class APRSIS(SpotProvider):

    def __init__(self, provider_config):
        super().__init__(provider_config)
        self.thread = Thread(target=self.connect)
        self.thread.daemon = True
        self.aprsis = None

    def start(self):
        self.thread.start()

    def connect(self):
        self.aprsis = aprslib.IS(SERVER_OWNER_CALLSIGN)
        self.status = "Connecting"
        logging.info("APRS-IS connecting...")
        self.aprsis.connect()
        self.aprsis.consumer(self.handle)
        logging.info("APRS-IS connected.")

    def stop(self):
        self.status = "Shutting down"
        self.aprsis.close()
        self.thread.join()

    def handle(self, data):
        # Split SSID in "from" call and store separately
        from_parts = data["from"].split("-")
        dx_call = from_parts[0]
        dx_aprs_ssid = from_parts[1] if len(from_parts) > 1 else None
        spot = Spot(source="APRS-IS",
                    dx_call=dx_call,
                    dx_aprs_ssid=dx_aprs_ssid,
                    de_call=data["via"],
                    comment=data["comment"] if "comment" in data else None,
                    latitude=data["latitude"] if "latitude" in data else None,
                    longitude=data["longitude"] if "longitude" in data else None,
                    icon="tower-cell",
                    time=datetime.now(pytz.UTC).timestamp()) # APRS-IS spots are live so we can assume spot time is "now"

        # Add to our list
        self.submit(spot)

        self.status = "OK"
        self.last_update_time = datetime.now(timezone.utc)
        logging.debug("Data received from APRS-IS.")