Files
tg-admin-bot/services/runtime_state.py

74 lines
1.6 KiB
Python

import json
import os
import threading
import tempfile
from typing import Any, Dict
_PATH = "/var/server-bot/runtime.json"
_STATE: Dict[str, Any] = {}
_LOCK = threading.RLock()
_LOADED = False
def configure(path: str | None):
global _PATH
if path:
_PATH = path
def _load_from_disk():
global _STATE, _LOADED
if not os.path.exists(_PATH):
_STATE = {}
_LOADED = True
return
try:
with open(_PATH, "r", encoding="utf-8") as f:
_STATE = json.load(f)
except Exception:
_STATE = {}
_LOADED = True
def _save():
directory = os.path.dirname(_PATH) or "."
os.makedirs(directory, exist_ok=True)
try:
fd, tmp_path = tempfile.mkstemp(prefix=".runtime.", suffix=".json", dir=directory)
try:
with os.fdopen(fd, "w", encoding="utf-8") as f:
json.dump(_STATE, f, ensure_ascii=False)
f.flush()
os.fsync(f.fileno())
os.replace(tmp_path, _PATH)
finally:
if os.path.exists(tmp_path):
try:
os.unlink(tmp_path)
except Exception:
pass
except Exception:
pass
def get_state() -> Dict[str, Any]:
with _LOCK:
if not _LOADED:
_load_from_disk()
return _STATE
def set_state(key: str, value: Any):
with _LOCK:
if not _LOADED:
_load_from_disk()
_STATE[key] = value
_save()
def get(key: str, default: Any = None) -> Any:
with _LOCK:
if not _LOADED:
_load_from_disk()
return _STATE.get(key, default)