from fastapi import APIRouter, HTTPException

users = []  # In-memory storage

router = APIRouter()

@router.get("/users")
async def get_users():
    """Demo get users endpoint"""
    if not users:
        raise HTTPException(status_code=404, detail="No users found")

    return {
        "message": "Users retrieved successfully",
        "users": users,
        "features": {
            "rate_limit": 100,
            "expires_in": 3600
        }
    }