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 _base(cfg):
    return "https://api." + str(cfg.get("site") or "datadoghq.com")


def request(method, path, cfg, body=None, params=None):
    url = _base(cfg) + path
    if params:
        clean = {k: v for k, v in params.items() if v not in (None, "")}
        if clean:
            url += "?" + urllib.parse.urlencode(clean)
    data = json.dumps(body).encode("utf-8") if body is not None else None
    headers = {
        "DD-API-KEY": str(cfg.get("api_key", "")),
        "DD-APPLICATION-KEY": str(cfg.get("app_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):
    query = inputs.get("query")
    if not query:
        raise Exception("query is required")
    from_time = inputs.get("from_time") or "now-1h"
    to_time = inputs.get("to_time") or "now"
    limit = inputs.get("limit")
    body = {
        "filter": {
            "query": query,
            "from": from_time,
            "to": to_time,
        },
        "page": {"limit": int(limit or 50)},
        "sort": "-timestamp",
    }
    return request("POST", "/api/v2/logs/events/search", cfg, body=body)


_run(main)