use context::prelude::*;

use std::{sync::Arc, thread};

use anyhow::Result;

pub struct LoadingScreen;

impl LoadingScreen {
    pub fn load<T, R, L, G>(
        context: &Arc<Context>,
        gui: Option<Arc<G>>,
        loader: L,
        on_ready: R,
    ) -> Result<()>
    where
        R: Fn(T) -> Result<()> + Send + Sync + 'static,
        T: Send + Sync + 'static,
        L: FnOnce() -> T + Send + Sync + 'static,
        G: TopLevelGui + TopGui + Send + Sync + 'static,
    {
        if let Some(gui) = &gui {
            gui.enable()?;
        }

        let context = context.clone();

        thread::spawn(move || {
            let result = loader();
            if let Some(gui) = &gui {
                gui.disable().unwrap();
            }

            todo!();
            // context.push_event(move || (on_ready)(result));
        });

        Ok(())
    }
}