import json, os, sys, 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 request(method, path, cfg, body=None):
    url = str(cfg.get("base_url", "")).rstrip("/") + path
    data = json.dumps(body).encode("utf-8") if body is not None else None
    headers = {"Authorization": "Bearer " + str(cfg.get("api_key", "")), "Accept": "application/json"}
    if data is not None:
        headers["Content-Type"] = "application/json"
    req = urllib.request.Request(url, data=data, headers=headers, method=method)
    with urllib.request.urlopen(req, timeout=60) 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)


def main(cfg, inputs):
    title = str(inputs.get("title", "")).strip()
    description = str(inputs.get("description", "")).strip()
    type_ = str(inputs.get("type", "")).strip()
    source = str(inputs.get("source", "")).strip()
    source_ref = str(inputs.get("source_ref", "")).strip()

    if not title:
        raise Exception("title is required")
    if not description:
        raise Exception("description is required")
    if not type_:
        raise Exception("type is required")
    if not source:
        raise Exception("source is required")
    if not source_ref:
        raise Exception("source_ref is required")

    severity = inputs.get("severity")

    body = {
        "title": title,
        "description": description,
        "type": type_,
        "source": source,
        "sourceRef": source_ref,
        "severity": int(severity) if severity not in (None, "") else 2,
    }

    return request("POST", "/api/v1/alert", cfg, body)


_run(main)