import json
import os
from typing import Any, Dict

_PATH = "/var/server-bot/runtime.json"
_STATE: Dict[str, Any] = {}


def configure(path: str | None):
    global _PATH
    if path:
        _PATH = path


def _load_from_disk():
    global _STATE
    if not os.path.exists(_PATH):
        _STATE = {}
        return
    try:
        with open(_PATH, "r", encoding="utf-8") as f:
            _STATE = json.load(f)
    except Exception:
        _STATE = {}


def _save():
    os.makedirs(os.path.dirname(_PATH), exist_ok=True)
    try:
        with open(_PATH, "w", encoding="utf-8") as f:
            json.dump(_STATE, f)
    except Exception:
        pass


def get_state() -> Dict[str, Any]:
    if not _STATE:
        _load_from_disk()
    return _STATE


def set_state(key: str, value: Any):
    if not _STATE:
        _load_from_disk()
    _STATE[key] = value
    _save()


def get(key: str, default: Any = None) -> Any:
    if not _STATE:
        _load_from_disk()
    return _STATE.get(key, default)