import logging
from typing import Any, Dict, Optional

from fastapi import Request

from core.cache import cache

logger = logging.getLogger(__name__)
PLATFORM_OVERVIEW_CACHE_KEY = "platform:overview"
PLATFORM_OVERVIEW_CACHE_TTL_SECONDS = 15
PLATFORM_NODES_CACHE_KEY = "platform:nodes:list"
PLATFORM_NODES_CACHE_TTL_SECONDS = 20


def cached_platform_overview_payload() -> Optional[Dict[str, Any]]:
    cached = cache.get_json(PLATFORM_OVERVIEW_CACHE_KEY)
    return cached if isinstance(cached, dict) else None


def store_platform_overview_payload(payload: Dict[str, Any]) -> Dict[str, Any]:
    cache.set_json(PLATFORM_OVERVIEW_CACHE_KEY, payload, ttl=PLATFORM_OVERVIEW_CACHE_TTL_SECONDS)
    return payload


def invalidate_platform_overview_cache() -> None:
    cache.delete(PLATFORM_OVERVIEW_CACHE_KEY)


def cached_platform_nodes_payload() -> Optional[Dict[str, Any]]:
    cached = cache.get_json(PLATFORM_NODES_CACHE_KEY)
    if not isinstance(cached, dict):
        return None
    items = cached.get("items")
    if not isinstance(items, list):
        return None
    return {"items": items}


def store_platform_nodes_payload(items: list[Dict[str, Any]]) -> Dict[str, Any]:
    payload = {"items": items}
    cache.set_json(PLATFORM_NODES_CACHE_KEY, payload, ttl=PLATFORM_NODES_CACHE_TTL_SECONDS)
    return payload


def invalidate_platform_nodes_cache() -> None:
    cache.delete(PLATFORM_NODES_CACHE_KEY)


def apply_platform_runtime_changes(request: Request) -> None:
    invalidate_platform_overview_cache()
    invalidate_platform_nodes_cache()
    speech_service = getattr(request.app.state, "speech_service", None)
    if speech_service is not None and hasattr(speech_service, "reset_runtime"):
        speech_service.reset_runtime()