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


def request(method, url, headers, body=None):
    data = json.dumps(body).encode("utf-8") if body is not None else None
    req = urllib.request.Request(url, data=data, headers=headers, method=method)
    with urllib.request.urlopen(req, timeout=30) as resp:
        raw = resp.read()
        return json.loads(raw) if raw else {}


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


TRUE_WORDS = {"true", "yes", "1"}
FALSE_WORDS = {"false", "no", "0"}


def main():
    secrets = json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
    inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
    base = secrets.get("url", "").rstrip("/") + "/web/api/v2.1"
    headers = {
        "Authorization": "ApiToken " + secrets.get("api_token", ""),
        "Accept": "application/json",
        "Content-Type": "application/json",
    }
    # === REQUEST ===
    qs = {
        "computerName": inputs.get("computer_name"),
        "osTypes": inputs.get("os_type"),
        "scan_status": inputs.get("scan_status"),
        "siteIds": inputs.get("siteIds"),
        "groupIds": inputs.get("groupIds"),
        # Scopes the count to one or more accounts of a multi-tenant console.
        "accountIds": ",".join(csv(inputs.get("accountIds"))),
        # Agents strictly newer than the given version, e.g. 23.4.2.6 — the console
        # answers with the fleet still trailing behind a target build.
        "agentVersion__gt": inputs.get("agentVersion__gt"),
        # Comma-separated lists are re-joined so a hand-typed "connected, disconnected"
        # does not reach the API with the space inside the value.
        "networkStatuses": ",".join(csv(inputs.get("networkStatuses"))),
        "operationalStatesNin": ",".join(csv(inputs.get("operationalStatesNin"))),
        "machineTypes": ",".join(csv(inputs.get("machineTypes"))),
    }
    # Text rather than a checkbox, which has no empty state: left blank the filter
    # is not sent at all and the count covers active and inactive agents alike.
    # A value we cannot read is refused rather than folded into false, which would
    # answer a different question than the one asked.
    active = str(inputs.get("isActive", "")).strip().lower()
    if active:
        if active not in TRUE_WORDS | FALSE_WORDS:
            raise ValueError("isActive must be true or false, got: " + repr(inputs["isActive"]))
        qs["isActive"] = "true" if active in TRUE_WORDS else "false"
    url = base + "/agents/count?" + urllib.parse.urlencode({k: v for k, v in qs.items() if v not in (None, "")})
    print(json.dumps(request("GET", url, headers)))
    # === END ===


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)