import json, os, sys, ssl, base64, http.cookiejar
import 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 _b64(s):
    return base64.b64encode(str(s).encode("utf-8")).decode("ascii")


class Client:
    def __init__(self, cfg):
        self.cfg = cfg
        self.base = str(cfg.get("base_url", "")).rstrip("/")
        ctx = _ctx(cfg)
        self.opener = urllib.request.build_opener(
            urllib.request.HTTPCookieProcessor(http.cookiejar.CookieJar()),
            urllib.request.HTTPSHandler(context=ctx) if ctx else urllib.request.HTTPSHandler(),
        )

    def login(self):
        form = urllib.parse.urlencode({"uid": _b64(self.cfg.get("username", "")), "pswd": _b64(self.cfg.get("password", ""))}).encode("utf-8")
        req = urllib.request.Request(self.base + "/api/auth/login", data=form,
                                     headers={"Content-Type": "application/x-www-form-urlencoded"}, method="POST")
        with self.opener.open(req, timeout=60) as r:
            return r.read().decode("utf-8", "replace")

    def command(self, cmd):
        form = urllib.parse.urlencode({"cmd": cmd}).encode("utf-8")
        req = urllib.request.Request(self.base + "/api/command", data=form,
                                     headers={"Content-Type": "application/x-www-form-urlencoded"}, method="POST")
        with self.opener.open(req, timeout=60) as r:
            return r.read().decode("utf-8", "replace")

    def logout(self):
        try:
            req = urllib.request.Request(self.base + "/api/auth/logout", data=b"", method="POST")
            self.opener.open(req, timeout=30).read()
        except Exception:
            pass


def _run(fn):
    try:
        cfg = _cfg()
        inputs = _inputs()
        client = Client(cfg)
        client.login()
        try:
            result = fn(client, inputs)
        finally:
            client.logout()
        print(json.dumps(result))
    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(client, inputs):
    client.command("SYSTEM PROPERTY")
    return {"ok": True}


_run(main)