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, body=None, params=None):
    url = str(cfg.get("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)
    data = json.dumps(body).encode("utf-8") if body is not None else None
    headers = {"Authorization": "ApiKey " + 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=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 _parse_json(s, field):
    try:
        return json.loads(s)
    except Exception:
        raise Exception(field + " must be a valid JSON object")


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

    if query_string:
        body = {"query": {"query_string": {"query": query_string}}}
    else:
        body = {"query": {"match_all": {}}}

    return request("POST", "/" + q(index) + "/_count", cfg, body=body)


_run(main)