from sqlmodel import Session, select
import src.models as models

def get_all(
    session: Session, 
    names: list[str], 
    productors: list[str],
    types: list[str],
) -> list[models.ProductPublic]:
    statement = select(models.Product)
    if len(names) > 0:
        statement = statement.where(models.Product.name.in_(names))
    if len(productors) > 0:
        statement = statement.join(models.Productor).where(models.Productor.name.in_(productors))
    if len(types) > 0:
        statement = statement.where(models.Product.type.in_(types))
    return session.exec(statement.order_by(models.Product.name)).all()

def get_one(session: Session, product_id: int) -> models.ProductPublic:
    return session.get(models.Product, product_id)

def create_one(session: Session, product: models.ProductCreate) -> models.ProductPublic:
    product_create = product.model_dump(exclude_unset=True)
    new_product = models.Product(**product_create)
    session.add(new_product)
    session.commit()
    session.refresh(new_product)
    return new_product

def update_one(session: Session, id: int, product: models.ProductUpdate) -> models.ProductPublic:
    statement = select(models.Product).where(models.Product.id == id)
    result = session.exec(statement)
    new_product = result.first()
    if not new_product:
        return None
    product_updates = product.model_dump(exclude_unset=True)
    for key, value in product_updates.items():
        setattr(new_product, key, value)

    session.add(new_product)
    session.commit()
    session.refresh(new_product)
    return new_product

def delete_one(session: Session, id: int) -> models.ProductPublic:
    statement = select(models.Product).where(models.Product.id == id)
    result = session.exec(statement)
    product = result.first()
    if not product:
        return None
    result = models.ProductPublic.model_validate(product)
    session.delete(product)
    session.commit()
    return result