"""
Единый executor операции Nubes.

Делает всё до /run включительно. НЕ поллит.
Используется api_test.py (ручной) и scenario.py (сценарный).
"""

from api.utils import find_uid, uid_from_location
from operations.terraform import send_params_terraform


def execute_operation(client, service_id, operation, instance_uid, params,
                      svc_op_id=None, display_name=None):
    """Запустить операцию и вернуть результат.

    Args:
        client: HttpClient
        service_id: int — ID сервиса
        operation: str — create/delete/modify/suspend/resume/redeploy
        instance_uid: str|None — UUID существующего инстанса (None для create)
        params: dict — {numeric_param_id: value}
        svc_op_id: int|None — svcOperationId (игнорируется для create)
        display_name: str|None — displayName (только для create)

    Returns:
        dict {ok, error, failed_step, instance_uid, op_uid, display_name}
        ok=True при успехе, ok=False при ошибке с failed_step.
    """
    is_create = (operation == "create")

    # --- Шаг 1: POST /instances (только create) ---
    if is_create:
        if not display_name:
            display_name = f"autotest-{service_id}"
        descr = f"created by autotest"
        payload = {"serviceId": service_id, "displayName": display_name, "descr": descr}
        try:
            resp = client.post("/instances", payload)
        except Exception as e:
            return {"ok": False, "error": str(e), "failed_step": "instances",
                    "instance_uid": None, "op_uid": None, "display_name": display_name}
        instance_uid = resp.get("instanceUid") or find_uid(resp) or uid_from_location(resp.get("_location", ""))
        if not instance_uid:
            return {"ok": False, "error": "No instanceUid in response", "failed_step": "instances",
                    "instance_uid": None, "op_uid": None, "display_name": display_name}

    # --- Шаг 2: POST /instanceOperations ---
    if is_create:
        op_payload = {"instanceUid": instance_uid, "operation": operation}
    else:
        op_payload = {"instanceUid": instance_uid, "svcOperationId": svc_op_id, "operation": operation}
    try:
        op_resp = client.post("/instanceOperations", op_payload)
    except Exception as e:
        return {"ok": False, "error": str(e), "failed_step": "instanceOperations",
                "instance_uid": instance_uid, "op_uid": None, "display_name": display_name}
    op_uid = op_resp.get("instanceOperationUid") or find_uid(op_resp) or uid_from_location(op_resp.get("_location", ""))
    if not op_uid:
        return {"ok": False, "error": "No opUid in response", "failed_step": "instanceOperations",
                "instance_uid": instance_uid, "op_uid": None, "display_name": display_name}

    # --- Шаг 3-6: Параметры + run ---
    try:
        send_params_terraform(client, op_uid, params)
    except Exception as e:
        return {"ok": False, "error": str(e), "failed_step": "params",
                "instance_uid": instance_uid, "op_uid": op_uid, "display_name": display_name}
    try:
        client.post(f"/instanceOperations/{op_uid}/run")
    except Exception as e:
        return {"ok": False, "error": str(e), "failed_step": "run",
                "instance_uid": instance_uid, "op_uid": op_uid, "display_name": display_name}

    return {"ok": True, "error": None, "failed_step": None,
            "instance_uid": instance_uid, "op_uid": op_uid, "display_name": display_name}