use windows::{
    core::{Interface},
    Win32::{
        Media::Audio::{
            IAudioSessionControl, IAudioSessionControl2,
            IAudioSessionNotification, IAudioSessionNotification_Impl,
        },
    },
};

#[windows::core::implement(IAudioSessionNotification)]
pub(crate) struct SessionNotification {
    pub(crate) callback: Box<dyn Fn(IAudioSessionControl2)>
}

impl IAudioSessionNotification_Impl for SessionNotification {
    fn OnSessionCreated(
        self: &SessionNotification,
        newsession: &core::option::Option<IAudioSessionControl>,
    ) -> windows::core::Result<()> {
        let ses: IAudioSessionControl2 = newsession.as_ref().unwrap().cast().unwrap();
        (self.callback)(ses);
        Ok(())
    }
}