initial

backend/app/api/v1/auth.py

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+from fastapi import APIRouter, HTTPException, status
+from sqlalchemy import select
+
+from app.api.deps import DbSession, CurrentUser
+from app.core.security import verify_password, get_password_hash, create_access_token
+from app.models import User
+from app.schemas import UserRegister, UserLogin, TokenResponse, UserPublic
+
+router = APIRouter(prefix="/auth", tags=["auth"])
+
+
+@router.post("/register", response_model=TokenResponse)
+async def register(data: UserRegister, db: DbSession):
+    # Check if login already exists
+    result = await db.execute(select(User).where(User.login == data.login.lower()))
+    if result.scalar_one_or_none():
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Login already registered",
+        )
+
+    # Create user
+    user = User(
+        login=data.login.lower(),
+        password_hash=get_password_hash(data.password),
+        nickname=data.nickname,
+    )
+    db.add(user)
+    await db.commit()
+    await db.refresh(user)
+
+    # Generate token
+    access_token = create_access_token(subject=user.id)
+
+    return TokenResponse(
+        access_token=access_token,
+        user=UserPublic.model_validate(user),
+    )
+
+
+@router.post("/login", response_model=TokenResponse)
+async def login(data: UserLogin, db: DbSession):
+    # Find user
+    result = await db.execute(select(User).where(User.login == data.login.lower()))
+    user = result.scalar_one_or_none()
+
+    if not user or not verify_password(data.password, user.password_hash):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect login or password",
+        )
+
+    # Generate token
+    access_token = create_access_token(subject=user.id)
+
+    return TokenResponse(
+        access_token=access_token,
+        user=UserPublic.model_validate(user),
+    )
+
+
+@router.get("/me", response_model=UserPublic)
+async def get_me(current_user: CurrentUser):
+    return UserPublic.model_validate(current_user)