use giterated_models::error::OperationError;

use giterated_models::object::{GiteratedObject, Object, ObjectRequestError};
use giterated_models::object_backend::ObjectBackend;
use giterated_models::operation::GiteratedOperation;

use std::fmt::Debug;

#[derive(Clone, Debug)]
pub struct CacheBackend;

#[async_trait::async_trait]
impl ObjectBackend for CacheBackend {
    async fn object_operation<O: GiteratedObject + Debug, D: GiteratedOperation<O> + Debug>(
        &self,
        _object: O,
        operation: &str,
        payload: D,
    ) -> Result<D::Success, OperationError<D::Failure>> {
        // We don't handle operations with this backend
        Err(OperationError::Unhandled)
    }

    async fn get_object<O: GiteratedObject + Debug>(
        &self,
        _object_str: &str,
    ) -> Result<Object<O, Self>, OperationError<ObjectRequestError>> {
        Err(OperationError::Unhandled)
    }
}