import json, os, sys, urllib.request, urllib.parse, urllib.error
from datetime import datetime, timedelta, timezone

ISO = "%Y-%m-%dT%H:%M:%SZ"
_UNITS = {"second": 1, "minute": 60, "hour": 3600, "day": 86400, "week": 604800, "month": 2592000, "year": 31536000}


def _cfg():
    s = json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
    region = str(s.get("region") or "us").strip().lower()
    base = "https://" + region + ".api.insight.rapid7.com/"
    headers = {"X-Api-Key": s.get("api_key", ""), "Content-Type": "application/json", "Accept": "application/json"}
    multi = str(s.get("is_multi_customer") or "").strip().lower() in ("1", "true", "yes")
    is_v2 = str(s.get("is_v2") or "true").strip().lower() in ("1", "true", "yes")
    return base, headers, multi, is_v2


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


def _api_version(inp, is_v2):
    v = str(inp.get("api_version") or "Default").strip()
    return v if v in ("V1", "V2") else ("V2" if is_v2 else "V1")


def _rel_seconds(text):
    if not text:
        return None
    num = unit = None
    for t in str(text).lower().replace("last", "").split():
        if t.isdigit():
            num = int(t)
        elif t.rstrip("s") in _UNITS:
            unit = t.rstrip("s")
    return num * _UNITS[unit] if (num is not None and unit) else None


def request(method, path, params=None, body=None):
    base, headers, _, _ = _cfg()
    url = base + path.lstrip("/")
    if params:
        clean = {k: v for k, v in params.items() if v not in (None, "")}
        if clean:
            url += ("&" if "?" in url else "?") + urllib.parse.urlencode(clean, doseq=True)
    data = json.dumps(body).encode("utf-8") if body is not None else None
    req = urllib.request.Request(url, data=data, headers=headers, method=method)
    with urllib.request.urlopen(req, timeout=90) as r:
        raw = r.read()
        return json.loads(raw) if raw else {}


def run():
    _, _, multi, is_v2 = _cfg()
    inp = _inputs()
    api_version = _api_version(inp, is_v2)
    limit = inp.get("limit") or 50
    start_time = inp.get("start_time")
    end_time = inp.get("end_time")
    secs = _rel_seconds(inp.get("time_range"))
    if secs:
        now = datetime.now(timezone.utc)
        start_time = (now - timedelta(seconds=secs)).strftime(ISO)
        end_time = now.strftime(ISO)
    params = {
        "index": inp.get("index") or "0",
        "size": inp.get("page_size") or limit,
        "statuses": inp.get("statuses"),
        "start_time": start_time,
        "end_time": end_time,
    }
    if api_version == "V2":
        params.update({
            "sources": inp.get("sources"),
            "priorities": inp.get("priorities"),
            "assignee_email": inp.get("assignee_email"),
            "sort_field": inp.get("sort_field"),
            "sort_direction": inp.get("sort_direction"),
            "tags": inp.get("tags"),
            "multi-customer": "true" if multi else None,
        })
    endpoint = "idr/" + api_version.lower() + "/investigations"
    print(json.dumps(request("GET", endpoint, params=params)))


try:
    run()
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)
