import json, os, sys, ssl, urllib.parse, urllib.request, urllib.error


def _cfg():
    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))


def _inputs():
    return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))


def _ctx(cfg):
    if cfg.get("insecure"):
        c = ssl.create_default_context()
        c.check_hostname = False
        c.verify_mode = ssl.CERT_NONE
        return c
    return None


def request(method, path, cfg, params=None, extra_headers=None):
    url = str(cfg.get("base_url", "")).rstrip("/") + path
    if params:
        clean = {k: v for k, v in params.items() if v not in (None, "")}
        if clean:
            url += "?" + urllib.parse.urlencode(clean)
    headers = {"SEC": str(cfg.get("api_token", "")), "Version": "20.0", "Accept": "application/json"}
    if extra_headers:
        headers.update(extra_headers)
    req = urllib.request.Request(url, headers=headers, method=method)
    with urllib.request.urlopen(req, timeout=90, context=_ctx(cfg)) as r:
        raw = r.read()
        return json.loads(raw) if raw else {}


def _run(fn):
    try:
        print(json.dumps(fn(_cfg(), _inputs())))
    except urllib.error.HTTPError as e:
        print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
        sys.exit(1)
    except Exception as e:
        print(json.dumps({"error": str(e)}))
        sys.exit(1)


q = lambda v: urllib.parse.quote(str(v), safe="")


def main(cfg, inputs):
    offense_id = inputs.get("offense_id")
    if not offense_id:
        raise Exception("offense_id is required")

    status = inputs.get("status")
    assigned_to = inputs.get("assigned_to")
    closing_reason_id = inputs.get("closing_reason_id")

    params = {}
    if status not in (None, ""):
        params["status"] = status
    if assigned_to not in (None, ""):
        params["assigned_to"] = assigned_to
    if closing_reason_id not in (None, ""):
        params["closing_reason_id"] = closing_reason_id

    if not params:
        raise Exception("at least one of status, assigned_to, closing_reason_id is required")

    return request("POST", "/api/siem/offenses/" + q(offense_id), cfg, params=params)


_run(main)