import logging
import os
import re
from json.decoder import JSONDecodeError
from urllib.parse import urlparse

import requests
from requests.auth import HTTPBasicAuth

logger = logging.getLogger(__name__)
IP_PATTERN = r"^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$"


def exclude_list(domain: str) -> bool:
    exclude = ["google.com"]
    for e in exclude:
        if domain.endswith(e):
            return True
    return False


def is_pure_ip(domain: str) -> bool:
    return True if re.match(IP_PATTERN, domain) else False


def main():
    auth = os.getenv("auth", None)
    jsonurl = os.getenv("tw165json", None)
    csvurl = os.getenv("tw165csv", None)
    if not jsonurl or not csvurl:
        logger.critical("URL NOT SET")
        return
    if not auth:
        logger.critical("AUTH NOT SET")
        return

    user, passwd = auth.split(":")
    basic = HTTPBasicAuth(user, passwd)

    def fetchdata(url):
        r = requests.get(url, auth=basic)
        if r.status_code != 200:
            logger.critical("Fetch Data Err")
            return
        return r

    r = fetchdata(jsonurl)
    try:
        r_json = r.json()["result"]["records"]
    except (JSONDecodeError, KeyError):
        logger.critical("Parse JSON Err")
        raise

    domains = dict.fromkeys(
        [
            urlparse(row["WEBURL"]).hostname
            if row["WEBURL"].startswith("http")
            else urlparse("http://" + row["WEBURL"]).hostname
            for row in r_json[1:]
        ]
    )

    r = fetchdata(csvurl)
    domains.update(
        dict.fromkeys(
            [
                urlparse(x.split(",")[1]).hostname
                if x.split(",")[1].startswith("http")
                else urlparse("http://" + x.split(",")[1]).hostname
                for x in r.text.splitlines()[2:]
            ]
        )
    )

    # 移除純 IP & 移除允許清單
    domains = {
        k: v for k, v in domains.items() if not is_pure_ip(k) and not exclude_list(k)
    }

    filename = "TW165.txt"
    with open(filename, "w") as f:
        f.write("\n".join(domains.keys()))


if __name__ == "__main__":
    main()