import csv

from pyhamtools.locator import latlong_to_locator

from core.cache_utils import SEMI_STATIC_URL_DATA_CACHE
from core.constants import SIGS, HTTP_HEADERS
from core.geo_utils import wab_wai_square_to_lat_lon


# Utility function to get the icon for a named SIG. If no match is found, the "circle-question" icon will be returned.
def get_icon_for_sig(sig):
    for s in SIGS:
        if s.name == sig:
            return s.icon
    return "circle-question"

# Utility function to get the regex string for a SIG reference for a named SIG. If no match is found, None will be returned.
def get_ref_regex_for_sig(sig):
    for s in SIGS:
        if s.name == sig:
            return s.ref_regex
    return None

# Look up details of a SIG reference (e.g. POTA park) such as name, lat/lon, and grid.
def get_sig_ref_info(sig, sig_ref_id):
    if sig.upper() == "POTA":
        data = SEMI_STATIC_URL_DATA_CACHE.get("https://api.pota.app/park/" + sig_ref_id, headers=HTTP_HEADERS).json()
        if data:
            return {"name": data["name"] if "name" in data else None,
                    "grid": data["grid6"] if "grid6" in data else None,
                    "latitude": data["latitude"] if "latitude" in data else None,
                    "longitude": data["longitude"] if "longitude" in data else None}
    elif sig.upper() == "SOTA":
        data = SEMI_STATIC_URL_DATA_CACHE.get("https://api-db2.sota.org.uk/api/summits/" + sig_ref_id, headers=HTTP_HEADERS).json()
        if data:
            return {"name": data["name"] if "name" in data else None,
                    "grid": data["locator"] if "locator" in data else None,
                    "latitude": data["latitude"] if "latitude" in data else None,
                    "longitude": data["longitude"] if "longitude" in data else None}
    elif sig.upper() == "WWBOTA":
        data = SEMI_STATIC_URL_DATA_CACHE.get("https://api.wwbota.org/bunkers/" + sig_ref_id, headers=HTTP_HEADERS).json()
        if data:
            return {"name": data["name"] if "name" in data else None,
                    "grid": data["locator"] if "locator" in data else None,
                    "latitude": data["lat"] if "lat" in data else None,
                    "longitude": data["long"] if "long" in data else None}
    elif sig.upper() == "GMA" or sig.upper() == "ARLHS" or sig.upper() == "ILLW" or sig.upper() == "WCA" or sig.upper() == "MOTA" or sig.upper() == "IOTA":
        data = SEMI_STATIC_URL_DATA_CACHE.get("https://www.cqgma.org/api/ref/?" + sig_ref_id, headers=HTTP_HEADERS).json()
        if data:
            return {"name": data["name"] if "name" in data else None,
                    "grid": data["locator"] if "locator" in data else None,
                    "latitude": data["latitude"] if "latitude" in data else None,
                    "longitude": data["longitude"] if "longitude" in data else None}
    elif sig.upper() == "SIOTA":
        siota_csv_data = SEMI_STATIC_URL_DATA_CACHE.get("https://www.silosontheair.com/data/silos.csv", headers=HTTP_HEADERS)
        siota_dr = csv.DictReader(siota_csv_data.content.decode().splitlines())
        for row in siota_dr:
            if row["SILO_CODE"] == sig_ref_id:
                return {"name": row["NAME"] if "NAME" in row else None,
                        "grid": row["LOCATOR"] if "LOCATOR" in row else None,
                        "latitude": float(row["LAT"]) if "LAT" in row else None,
                        "longitude": float(row["LNG"]) if "LNG" in row else None}
    elif sig.upper() == "WOTA":
        data = SEMI_STATIC_URL_DATA_CACHE.get("https://www.wota.org.uk/mapping/data/summits.json", headers=HTTP_HEADERS).json()
        if data:
            for feature in data["features"]:
                if feature["properties"]["wotaId"] == sig_ref_id:
                    return {"name": feature["properties"]["title"],
                            "grid": feature["properties"]["qthLocator"],
                            "latitude": feature["geometry"]["coordinates"][1],
                            "longitude": feature["geometry"]["coordinates"][0]}
    elif sig.upper() == "ZLOTA":
        data = SEMI_STATIC_URL_DATA_CACHE.get("https://ontheair.nz/assets/assets.json", headers=HTTP_HEADERS).json()
        if data:
            for asset in data:
                if asset["code"] == sig_ref_id:
                    return {"name": asset["name"],
                            "grid": latlong_to_locator(asset["y"], asset["x"], 6),
                            "latitude": asset["y"],
                            "longitude": asset["x"]}
    elif sig.upper() == "WAB" or sig.upper() == "WAI":
        ll = wab_wai_square_to_lat_lon(sig_ref_id)
        if ll:
            return {"name": sig_ref_id,
                    "grid": latlong_to_locator(ll[0], ll[1], 6),
                    "latitude": ll[0],
                    "longitude": ll[1]}

    return None


# Regex matching any SIG
ANY_SIG_REGEX = r"(" + r"|".join(list(map(lambda p: p.name, SIGS))) + r")"

# Regex matching any SIG reference
ANY_XOTA_SIG_REF_REGEX = r"[\w\/]+\-\d+"