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backend/app/routers/auth.py

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+"""
+Tool_OCR - Authentication Router
+JWT login endpoint
+"""
+
+from datetime import timedelta
+import logging
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from app.core.config import settings
+from app.core.deps import get_db
+from app.core.security import verify_password, create_access_token
+from app.models.user import User
+from app.schemas.auth import LoginRequest, Token
+
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/api/v1/auth", tags=["Authentication"])
+
+
+@router.post("/login", response_model=Token, summary="User login")
+async def login(
+    login_data: LoginRequest,
+    db: Session = Depends(get_db)
+):
+    """
+    User login with username and password
+
+    Returns JWT access token for authentication
+
+    - **username**: User's username
+    - **password**: User's password
+    """
+    # Query user by username
+    user = db.query(User).filter(User.username == login_data.username).first()
+
+    # Verify user exists and password is correct
+    if not user or not verify_password(login_data.password, user.password_hash):
+        logger.warning(f"Failed login attempt for username: {login_data.username}")
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    # Check if user is active
+    if not user.is_active:
+        logger.warning(f"Inactive user login attempt: {login_data.username}")
+        raise HTTPException(
+            status_code=status.HTTP_403_FORBIDDEN,
+            detail="User account is inactive"
+        )
+
+    # Create access token
+    access_token_expires = timedelta(minutes=settings.access_token_expire_minutes)
+    access_token = create_access_token(
+        data={"sub": str(user.id), "username": user.username},
+        expires_delta=access_token_expires
+    )
+
+    logger.info(f"Successful login: {user.username} (ID: {user.id})")
+
+    return {
+        "access_token": access_token,
+        "token_type": "bearer",
+        "expires_in": settings.access_token_expire_minutes * 60  # Convert to seconds
+    }