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"""
统一状态管理器
"""
import asyncio
import os
from typing import Dict, Any
from contextlib import asynccontextmanager
from config import is_mongodb_mode
from log import log
from .storage_adapter import get_storage_adapter
class StateManager:
"""
统一状态管理器
"""
def __init__(self, state_file_path: str):
self.state_file_path = state_file_path
self._lock = asyncio.Lock()
self._storage_adapter = None
self._initialized = False
# 从文件路径推断存储用途
self._storage_purpose = self._infer_storage_purpose(state_file_path)
def _infer_storage_purpose(self, file_path: str) -> str:
"""根据文件路径推断存储用途"""
filename = os.path.basename(file_path)
if "creds_state" in filename:
return "credential_state"
elif "config" in filename:
return "config"
elif "usage" in filename or "stats" in filename:
return "usage_stats"
else:
return "general"
async def _ensure_initialized(self):
"""确保状态管理器已初始化"""
if not self._initialized:
self._storage_adapter = await get_storage_adapter()
self._initialized = True
if await is_mongodb_mode():
log.debug(f"Unified state manager initialized with MongoDB backend for: {self._storage_purpose}")
else:
log.debug(f"Unified state manager initialized with file backend for: {self._storage_purpose}")
async def _load_state(self) -> Dict[str, Any]:
"""加载状态数据"""
await self._ensure_initialized()
if self._storage_purpose == "credential_state":
return await self._storage_adapter.get_all_credential_states()
elif self._storage_purpose == "config":
return await self._storage_adapter.get_all_config()
elif self._storage_purpose == "usage_stats":
return await self._storage_adapter.get_all_usage_stats()
else:
# 对于通用存储，尝试获取配置数据
return await self._storage_adapter.get_all_config()
async def _save_state(self, state: Dict[str, Any]):
"""保存状态数据"""
await self._ensure_initialized()
# 根据存储用途批量更新数据
if self._storage_purpose == "credential_state":
# 批量更新凭证状态
for filename, file_state in state.items():
await self._storage_adapter.update_credential_state(filename, file_state)
elif self._storage_purpose == "config":
# 批量更新配置
for key, value in state.items():
await self._storage_adapter.set_config(key, value)
elif self._storage_purpose == "usage_stats":
# 批量更新使用统计
for filename, stats in state.items():
await self._storage_adapter.update_usage_stats(filename, stats)
else:
# 通用存储，作为配置处理
for key, value in state.items():
await self._storage_adapter.set_config(key, value)
@asynccontextmanager
async def transaction(self):
"""
事务上下文管理器，兼容原有接口。
Usage:
async with state_manager.transaction() as state:
state['key'] = 'value'
# State is automatically saved on exit
"""
async with self._lock:
state = await self._load_state()
try:
yield state
await self._save_state(state)
except Exception:
# Don't save if there was an error
raise
async def read_file_state(self, filename: str) -> Dict[str, Any]:
"""读取特定文件的状态，兼容原有接口"""
await self._ensure_initialized()
if self._storage_purpose == "credential_state":
return await self._storage_adapter.get_credential_state(filename)
elif self._storage_purpose == "usage_stats":
return await self._storage_adapter.get_usage_stats(filename)
else:
# 对于配置和通用存储，filename作为配置键
value = await self._storage_adapter.get_config(filename)
return value if isinstance(value, dict) else {}
async def update_file_state(self, filename: str, updates: Dict[str, Any]):
"""更新特定文件的状态，兼容原有接口"""
await self._ensure_initialized()
if self._storage_purpose == "credential_state":
await self._storage_adapter.update_credential_state(filename, updates)
elif self._storage_purpose == "usage_stats":
await self._storage_adapter.update_usage_stats(filename, updates)
else:
# 对于配置存储，如果updates是字典则作为嵌套配置处理
if isinstance(updates, dict) and len(updates) == 1:
# 如果只有一个键值对，可能是设置单个配置
for key, value in updates.items():
await self._storage_adapter.set_config(f"{filename}.{key}", value)
else:
# 否则将整个updates作为配置值
await self._storage_adapter.set_config(filename, updates)
async def batch_update(self, updates: Dict[str, Dict[str, Any]]):
"""批量更新多个文件，兼容原有接口"""
await self._ensure_initialized()
for filename, file_updates in updates.items():
await self.update_file_state(filename, file_updates)
# 全局状态管理器实例缓存
_state_managers: Dict[str, StateManager] = {}
def get_state_manager(state_file_path: str) -> StateManager:
"""获取或创建状态管理器实例，兼容原有接口"""
if state_file_path not in _state_managers:
_state_managers[state_file_path] = StateManager(state_file_path)
return _state_managers[state_file_path]
async def close_all_state_managers():
"""关闭所有状态管理器（用于优雅关闭）"""
global _state_managers
# 关闭存储适配器（这会自动处理所有状态管理器）
from .storage_adapter import close_storage_adapter
await close_storage_adapter()
# 清空缓存
_state_managers.clear()
log.debug("All state managers closed") |