import csv
import logging
from time import sleep

from pyhamtools.locator import latlong_to_locator

from core.enums import ActivityName, ActivityRefType
from data.activity_ref import ActivityRef
from providers.activityrefdata.file_download_activity_ref_data_provider import (
    FileDownloadActivityRefDataProvider,
)

logger = logging.getLogger(__name__)


class WCA(FileDownloadActivityRefDataProvider):
    """Activity ref data provider for World Castles Award"""

    POLL_INTERVAL_DAYS = 30
    ACTIVITY = ActivityName.WCA
    DATA_URL = "https://polo.ham2k.com/data/activities/wca/all-castles.csv"

    def __init__(self, provider_config):
        super().__init__(self.ACTIVITY, provider_config, self.DATA_URL, self.POLL_INTERVAL_DAYS)

    def _http_response_to_data(self, http_response):
        new_data = []
        for row in csv.DictReader(http_response.content.decode("utf-8-sig").splitlines()):
            ref_id = row["REF"]

            coords_str = row["COORDINATES"]
            latitude = None
            longitude = None
            grid = None
            try:
                if coords_str:
                    split = coords_str.split(", ")
                    latitude = float(split[0])
                    longitude = float(split[1])
                    grid = latlong_to_locator(latitude, longitude)
            except ValueError:
                logger.debug(f"Encountered dodgy formatting in WCA CSV, skipping location data for {ref_id}")

            new_data.append(
                ActivityRef(
                    sig=self.ACTIVITY,
                    id=ref_id,
                    name=row.get("CLEAN NAME", None),
                    ref_type=ActivityRefType.CASTLE,
                    url=f"https://www.cqgma.org/zinfo.php?ref={ref_id}",
                    latitude=latitude,
                    longitude=longitude,
                    grid=grid,
                )
            )

            # Bail out if a stop has been requested, i.e. the program is shutting down - no need to parse the rest of
            # the data in this case
            if self._stop_event.is_set():
                break

            # Very short pause. This will extend the time to handle activity refs by a few seconds but will ensure some time
            # is available for other threads e.g. the web server.
            sleep(0.001)

        return new_data