# fastapi_crud/app/crud.py
from sqlalchemy.orm import Session
from . import models, schemas
from passlib.context import CryptContext

pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")

# User CRUD operations
def get_user(db: Session, user_id: int):
    return db.query(models.User).filter(models.User.id == user_id).first()

def get_user_by_username(db: Session, username: str):
    return db.query(models.User).filter(models.User.username == username).first()

def create_user(db: Session, user: schemas.UserCreate):
    hashed_password = pwd_context.hash(user.password)
    db_user = models.User(username=user.username, hashed_password=hashed_password)
    db.add(db_user)
    db.commit()
    db.refresh(db_user)
    return db_user

# Device CRUD operations
def get_device(db: Session, device_id: int):
    return db.query(models.Device).filter(models.Device.id == device_id).first()

def get_devices(db: Session, skip: int = 0, limit: int = 10):
    return db.query(models.Device).offset(skip).limit(limit).all()

def create_device(db: Session, device: schemas.DeviceCreate):
    db_device = models.Device(**device.dict())
    db.add(db_device)
    db.commit()
    db.refresh(db_device)
    return db_device

def update_device(db: Session, device_id: int, device: schemas.DeviceUpdate):
    db_device = db.query(models.Device).filter(models.Device.id == device_id).first()
    if db_device is None:
        return None
    for key, value in device.dict().items():
        setattr(db_device, key, value)
    db.commit()
    db.refresh(db_device)
    return db_device

def delete_device(db: Session, device_id: int):
    db_device = db.query(models.Device).filter(models.Device.id == device_id).first()
    if db_device is None:
        return None
    db.delete(db_device)
    db.commit()
    return db_device

def set_device_active(db: Session, device_id: int, active: bool):
    db_device = db.query(models.Device).filter(models.Device.id == device_id).first()
    if db_device is None:
        return None
    db_device.active = active
    db.commit()
    db.refresh(db_device)
    return db_device