from sqlalchemy.orm import Session
from datetime import datetime
from typing import Optional
from fastapi import HTTPException
from app.modules.invoices.models import Invoices
from app.modules.invoices.schema import 


class InvoicesService:
    @staticmethod
    def create_invoices(db: Session, data: ):
        
        
        
        
        new_invoices = Invoices(**data.dict())
        db.add(new_invoices)
        db.commit()
        db.refresh(new_invoices)
        return new_invoices

    @staticmethod
    def get_invoices(db: Session, invoices_id: int, current_user):
        invoices = db.query(Invoices).filter(Invoices.id == invoices_id).first()
        if not invoices:
            raise ValueError("invoices no encontrado")
        return invoices

    @staticmethod
    def update_invoices(db: Session, invoices_id: int, data: , current_user):
        invoices = db.query(Invoices).filter(Invoices.id == invoices_id).first()
        if not invoices:
            raise ValueError("invoices no encontrado")
        
        if current_user.role not in ["ROOT", "ADMIN"]:
            raise ValueError("No tienes permisos para actualizar este invoices")
        
        update_data = data.dict(exclude_unset=True)
        for key, value in update_data.items():
            setattr(invoices, key, value)
        
        db.commit()
        db.refresh(invoices)
        return invoices

    @staticmethod
    def delete_invoices(db: Session, invoices_id: int, current_user):
        invoices = db.query(Invoices).filter(Invoices.id == invoices_id).first()
        if not invoices:
            raise ValueError("invoices no encontrado")
        
        if current_user.role not in ["ROOT", "ADMIN"]:
            raise ValueError("No tienes permisos para eliminar este invoices")
        
        try:
            invoices.is_active = False
            invoices.deleted_at = datetime.utcnow()
            invoices.deleted_by = current_user.id
            db.commit()
            db.refresh(invoices)
        except Exception as e:
            db.rollback()
            raise ValueError(f"Error al eliminar el invoices: {e}")
        
        return {"message": "invoices eliminado correctamente"}