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 call(method, path, tok, params=None, body=None):
    url = BASE + path
    if params:
        # params is a list of (key, value) tuples to allow repeated keys (e.g. ids)
        url += "?" + urllib.parse.urlencode(params)
    data = json.dumps(body).encode() if body is not None else None
    headers = {"Authorization": "Bearer " + tok, "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) as r:
        raw = r.read()
        return json.loads(raw) if raw else {}


def csv(v):
    return [x.strip() for x in str(v or "").split(",") if x.strip()]


def main():
    tok = token()
    host_ids = INPUTS.get("host_ids", "")
    file_path = INPUTS.get("file_path", "")
    os_type = INPUTS.get("os", "Windows")
    qoff = str(INPUTS.get("queue_offline", "false")).lower() == "true"
    timeout = INPUTS.get("timeout", "30")

    init = call("POST", "/real-time-response/combined/batch-init-session/v1", tok,
                body={"host_ids": csv(host_ids), "queue_offline": qoff})
    batch_id = init.get("batch_id")

    if os_type == "Windows":
        full = "rm '" + file_path + "' --force"
    else:
        full = "rm '" + file_path + "' -r -d"

    result = call("POST", "/real-time-response/combined/batch-active-responder-command/v1", tok,
                  params=[("timeout", timeout)],
                  body={"base_command": "rm", "batch_id": batch_id, "command_string": full})
    print(json.dumps(result))


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)