use std::{fmt::Debug, sync::Arc};

use tokio::sync::oneshot;

/// he `Id` of an executing task.

pub struct Id(pub(crate) u64);

/// References a background task.

pub struct Handle<T, E> {

    /// The task's id.

    pub id: Id,

    pub(crate) receiver: oneshot::Receiver<Result<T, Arc<E>>>,

}

impl<T, E> Handle<T, E>

where

    T: Send + Sync + 'static,

    E: Send + Sync + 'static,

{

    /// Waits for the job to complete and returns the result.

    ///

    /// # Errors

    ///

    /// Returns an error if the job is cancelled.

    // /// Tries to receive the status of the job. If available, it is returned.

    // /// This function will not block.

    // ///

    // /// # Errors

    // ///

    // /// Returns an error if the job isn't complete.

    // ///

    // /// * [`TryRecvError::Disconnected`](flume::TryRecvError::Disconnected): The job has been cancelled.

    // /// * [`TryRecvError::Empty`](flume::TryRecvError::Empty): The job has not completed yet.

    #[cfg(test)]

}