From 4848a9e9394b283022085a6305d00f94b11cd703 Mon Sep 17 00:00:00 2001
From: l3wdfut4pwr <l3wdfut4pwr@gmail.com>
Date: Mon, 27 Apr 2026 13:45:09 +0300
Subject: add username change and logout

---
 app/utils/__init__.py      | 17 ----------------
 app/utils/cors.py          |  3 ---
 app/utils/create_tables.py |  7 +++++--
 app/utils/db.py            | 49 ++++++++++++++++++++++++++++++----------------
 app/utils/env.py           |  5 +++++
 5 files changed, 42 insertions(+), 39 deletions(-)

(limited to 'app/utils')

diff --git a/app/utils/__init__.py b/app/utils/__init__.py
index a05c4d1..e69de29 100644
--- a/app/utils/__init__.py
+++ b/app/utils/__init__.py
@@ -1,17 +0,0 @@
-from .cors import setup_cors
-from .create_tables import init_db
-from .db import Base, async_session, engine, get_async_session
-from .hash_cfg import hash_password, verify_password
-from .logger_cfg import logger
-
-__all__ = [
-    "engine",
-    "async_session",
-    "get_async_session",
-    "Base",
-    "setup_cors",
-    "init_db",
-    "hash_password",
-    "verify_password",
-    "logger",
-]
diff --git a/app/utils/cors.py b/app/utils/cors.py
index e7b54e8..71dadbb 100644
--- a/app/utils/cors.py
+++ b/app/utils/cors.py
@@ -1,10 +1,7 @@
 import os
 
-from dotenv import load_dotenv
 from fastapi.middleware.cors import CORSMiddleware
 
-load_dotenv()
-
 
 def setup_cors(app):
 
diff --git a/app/utils/create_tables.py b/app/utils/create_tables.py
index e438a03..0d2eaa2 100644
--- a/app/utils/create_tables.py
+++ b/app/utils/create_tables.py
@@ -1,7 +1,10 @@
 from app.models.user import Base
-from app.utils.db import engine
+from app.utils.db import get_engine
 
 
-async def init_db():
+async def init_db() -> None:
+
+    engine = get_engine()
+
     async with engine.begin() as conn:
         await conn.run_sync(Base.metadata.create_all)
diff --git a/app/utils/db.py b/app/utils/db.py
index 5531998..d3c7318 100644
--- a/app/utils/db.py
+++ b/app/utils/db.py
@@ -1,7 +1,6 @@
 import os
-from typing import AsyncGenerator
+from typing import AsyncGenerator, Optional
 
-from dotenv import load_dotenv
 from sqlalchemy.ext.asyncio import (
     AsyncEngine,
     AsyncSession,
@@ -10,29 +9,45 @@ from sqlalchemy.ext.asyncio import (
 )
 from sqlalchemy.orm import DeclarativeBase
 
-load_dotenv()
+engine: Optional[AsyncEngine] = None
+async_session: Optional[async_sessionmaker[AsyncSession]] = None
 
-DATABASE_URL = os.getenv("DATABASE_URL")
-if not DATABASE_URL:
-    raise ValueError("DATABASE_URL not found in .env")
 
+class Base(DeclarativeBase):
+    pass
 
-engine: AsyncEngine = create_async_engine(
-    DATABASE_URL,
-    echo=True,
-    pool_pre_ping=True,
-)
 
-async_session = async_sessionmaker(
-    bind=engine,
-    expire_on_commit=False,
-)
+def init_db_engine() -> None:
+    global engine, async_session
 
+    database_url = os.getenv("DATABASE_URL")
 
-class Base(DeclarativeBase):
-    pass
+    if not database_url:
+        raise RuntimeError("DATABASE_URL not found in environment")
+
+    engine = create_async_engine(
+        database_url,
+        echo=True,
+        pool_pre_ping=True,
+    )
+
+    async_session = async_sessionmaker(
+        bind=engine,
+        expire_on_commit=False,
+    )
+
+
+def get_engine() -> AsyncEngine:
+    if engine is None:
+        raise RuntimeError(
+            "DB engine not initialized. Call init_db_engine() first."
+        )
+    return engine
 
 
 async def get_async_session() -> AsyncGenerator[AsyncSession, None]:
+    if async_session is None:
+        raise RuntimeError("DB not initialized. Call init_db_engine() first.")
+
     async with async_session() as session:
         yield session
diff --git a/app/utils/env.py b/app/utils/env.py
index e69de29..76b61a7 100644
--- a/app/utils/env.py
+++ b/app/utils/env.py
@@ -0,0 +1,5 @@
+from pathlib import Path
+
+from dotenv import load_dotenv
+
+load_dotenv(Path(__file__).resolve().parents[2] / ".env")
-- 
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