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 (str(cfg.get("api_url") or "https://s-platform.api.opendns.com")).rstrip("/")


def request(method, path, cfg, body=None, params=None):
    p = {"customerKey": str(cfg.get("api_key", ""))}
    if params:
        p.update(params)
    url = _base(cfg) + path + "?" + urllib.parse.urlencode(p)
    data = json.dumps(body).encode("utf-8") if body is not None else None
    headers = {"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):
    page_raw = inputs.get("page")
    limit_raw = inputs.get("limit")

    try:
        page = int(page_raw) if page_raw not in (None, "") else 1
    except (TypeError, ValueError):
        page = 1

    try:
        limit = int(limit_raw) if limit_raw not in (None, "") else 200
    except (TypeError, ValueError):
        limit = 200

    return request("GET", "/1.0/domains", cfg, params={"page": page, "limit": limit})


_run(main)
