feat: 持久化和 web 接口基础架构

pkg/persistence/mgr.py

@@ -0,0 +1,55 @@
+from __future__ import annotations
+
+import asyncio
+import datetime
+
+import sqlalchemy.ext.asyncio as sqlalchemy_asyncio
+import sqlalchemy
+
+from . import database
+from ..core import app
+from .databases import sqlite
+
+
+class PersistenceManager:
+    """持久化模块管理器"""
+
+    ap: app.Application
+
+    db: database.BaseDatabaseManager
+    """数据库管理器"""
+
+    meta: sqlalchemy.MetaData
+
+    def __init__(self, ap: app.Application):
+        self.ap = ap
+        self.meta = sqlalchemy.MetaData()
+
+    async def initialize(self):
+        
+        for manager in database.preregistered_managers:
+            self.db = manager(self.ap)
+            await self.db.initialize()
+
+        await self.create_tables()
+
+    async def create_tables(self):
+        # TODO: 对扩展友好
+        
+        # 日志
+        async with self.get_db_engine().connect() as conn:
+            await conn.run_sync(self.meta.create_all)
+
+            await conn.commit()
+
+    async def execute_async(
+        self,
+        *args,
+        **kwargs
+    ):
+        async with self.get_db_engine().connect() as conn:
+            await conn.execute(*args, **kwargs)
+            await conn.commit()
+
+    def get_db_engine(self) -> sqlalchemy_asyncio.AsyncEngine:
+        return self.db.get_engine()