from sqlalchemy.orm import Session
from datetime import datetime
from typing import Optional
from fastapi import HTTPException
from app.modules.files.models import Files
from app.modules.files.schema import 


class FilesService:
    @staticmethod
    def create_files(db: Session, data: ):
        
        
        
        
        new_files = Files(**data.dict())
        db.add(new_files)
        db.commit()
        db.refresh(new_files)
        return new_files

    @staticmethod
    def get_files(db: Session, files_id: int, current_user):
        files = db.query(Files).filter(Files.id == files_id).first()
        if not files:
            raise ValueError("files no encontrado")
        return files

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

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