from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy import Column, String, Boolean
from sqlalchemy.ext.declarative import declarative_base

Base = declarative_base()
router = APIRouter()

class User(Base):
    __tablename__ = "users"
    
    id = Column(String, primary_key=True)
    token = Column(String, nullable=True)
    is_active = Column(Boolean, default=True)

@router.post("/logout")
async def logout_demo(
    user_id: str = "demo_user",
    token: str = "dummy_jwt_token_123"
):
    """Demo logout endpoint"""
    if not any(u.id == user_id for u in User.query.all()):
        raise HTTPException(status_code=400, detail="Invalid user")

    user = User.query.filter_by(id=user_id).first()
    user.token = None
    user.is_active = False

    return {
        "message": "Logout successful",
        "user": user_id,
        "session_ended": True,
        "features": {
            "can_relogin": True,
            "cooldown_period": 0
        }
    }