from sqlalchemy.orm import Session
from datetime import datetime
from typing import Optional
from fastapi import HTTPException
from app.modules.credits.models import Credits
from app.modules.credits.schema import 


class CreditsService:
    @staticmethod
    def create_credits(db: Session, data: ):
        
        
        
        
        new_credits = Credits(**data.dict())
        db.add(new_credits)
        db.commit()
        db.refresh(new_credits)
        return new_credits

    @staticmethod
    def get_credits(db: Session, credits_id: int, current_user):
        credits = db.query(Credits).filter(Credits.id == credits_id).first()
        if not credits:
            raise ValueError("credits no encontrado")
        return credits

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

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