refractor structure project and add user endpoint

backend/app/auth/service.py

@@ -0,0 +1,102 @@
+import logging
+import uuid
+from datetime import datetime, timedelta
+from typing import Optional
+
+from jose import jwt
+from sqlalchemy import or_
+
+from app.utils.hash_password import verify_password
+from app.services.redis_service import RefreshTokenStorage
+from app.core.exceptions import InvalidTokenException
+from app.users.models import UserModel
+from app.users.dao import UserDAO
+from app.core.database import async_session_maker
+from app.auth.schemas import Token
+from app.core.config import settings
+
+log = logging.getLogger(__name__)
+
+
+class AuthService:
+    @classmethod
+    async def create_token(cls, user_id: int) -> Token:
+
+        access_token = cls._create_access_token(user_id)
+        refresh_token_expires = timedelta(
+            days=settings.REFRESH_TOKEN_EXPIRE_DAYS)
+        refresh_token = cls._create_refresh_token()
+
+        await RefreshTokenStorage.save_token(refresh_token, user_id, int(refresh_token_expires.total_seconds()))
+
+        log.info("Token created has user", extra={"user_id": user_id})
+        return Token(access_token=access_token, refresh_token=refresh_token, token_type="bearer")
+
+    @classmethod
+    async def logout(cls, token: uuid.UUID) -> None:
+        user_id = await RefreshTokenStorage.getdel_token(token)
+        log.info("User logged out", extra={"user_id": user_id})
+
+    @classmethod
+    async def refresh_token(cls, token: uuid.UUID) -> Token:
+        async with async_session_maker() as session:
+            refresh_session = await RefreshTokenStorage.getdel_token(token)
+
+            if refresh_session is None:
+                log.warning("Refresh token not found")
+                raise InvalidTokenException
+
+            user = await UserDAO.find_one_or_none(session, id=int(refresh_session))
+            if user is None:
+                log.error("User not found during token refresh", extra={"user_id": str(refresh_session.user_id)})
+                raise InvalidTokenException
+
+            access_token = cls._create_access_token(user.id)
+            refresh_token_expires = timedelta(
+                days=settings.REFRESH_TOKEN_EXPIRE_DAYS)
+            refresh_token = cls._create_refresh_token()
+
+            await RefreshTokenStorage.save_token(
+                refresh_token,
+                user.id,
+                int(refresh_token_expires.total_seconds())
+            )
+
+            await session.commit()
+            log.info("Token refreshed for user", extra={"user_id": str(user.id)})
+        return Token(access_token=access_token, refresh_token=refresh_token, token_type="bearer")
+
+    @classmethod
+    async def authenticate_user(cls, email_or_username: str, password: str) -> Optional[UserModel]:
+        async with async_session_maker() as session:
+            db_user = await UserDAO.find_one_or_none(
+                session,
+                or_(
+                    UserModel.email==email_or_username,
+                    UserModel.username==email_or_username
+                )
+            )
+        if db_user and verify_password(password, db_user.hashed_password):
+            log.info("User authenticated successfully", extra={"username": db_user.username})
+            return db_user
+        log.warning("Authentication failed", extra={"email": email_or_username})
+        return None
+
+    @classmethod
+    async def abort_all_sessions(cls, user_id: int):
+        await RefreshTokenStorage.abort_all_tokens(user_id)
+
+    @classmethod
+    def _create_access_token(cls, user_id: int) -> str:
+        to_encode = {
+            "sub": str(user_id),
+            "exp": datetime.utcnow() + timedelta(
+                minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+        }
+        encoded_jwt = jwt.encode(
+            to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
+        return f'Bearer {encoded_jwt}'
+
+    @classmethod
+    def _create_refresh_token(cls) -> uuid.UUID:
+        return uuid.uuid4()