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use crate::{Error, Result, SessionList};
use async_trait::async_trait;
use futures::Future;

#[async_trait]
pub trait Global<State: Clone, CState: Clone>: Send + Sync + 'static {
    async fn call(&self, state: State, session_list: SessionList<CState>) -> Result<()>;
}

#[async_trait]
impl<State, CState, F, Fut> Global<State, CState> for F
where
    State: Clone + Send + Sync + 'static,
    CState: Clone + Send + Sync + 'static,
    F: Send + Sync + 'static + Fn(State, SessionList<CState>) -> Fut,
    Fut: Future<Output = std::result::Result<(), Error>> + Send + 'static,
{
    async fn call(&self, state: State, session_list: SessionList<CState>) -> Result<()> {
        let fut = (self)(state.clone(), session_list.clone());

        fut.await
    }
}