from sqlalchemy.orm import Session
from datetime import datetime
from typing import Optional
from fastapi import HTTPException
from app.modules.client.models import Client
from app.modules.client.schema import 


class ClientService:
    @staticmethod
    def create_client(db: Session, data: ):
        
        
        
        
        new_client = Client(**data.dict())
        db.add(new_client)
        db.commit()
        db.refresh(new_client)
        return new_client

    @staticmethod
    def get_client(db: Session, client_id: int, current_user):
        client = db.query(Client).filter(Client.id == client_id).first()
        if not client:
            raise ValueError("client no encontrado")
        return client

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

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