import json, os, sys, urllib.request, urllib.parse, urllib.error

SECRETS = json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
INPUTS = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
BASE = SECRETS.get("base_url", "https://api.crowdstrike.com").rstrip("/")


def token():
    data = urllib.parse.urlencode({"client_id": SECRETS.get("client_id", ""), "client_secret": SECRETS.get("client_secret", "")}).encode()
    req = urllib.request.Request(BASE + "/oauth2/token", data=data, headers={"Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json"}, method="POST")
    with urllib.request.urlopen(req, timeout=30) as r:
        return json.loads(r.read()).get("access_token", "")


def main():
    # Acquiring the OAuth2 token validates client_id/client_secret: bad
    # credentials make the exchange fail (HTTPError -> exit 1).
    tok = token()
    if not tok:
        print(json.dumps({"ok": False, "error": "No access token returned"}))
        sys.exit(1)
    print(json.dumps({"ok": True, "authenticated": True}))


try:
    main()
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)