//! Provides `sleep` for all platforms.

pub use thread::sleep;

cfg_if::cfg_if! {
    // TODO: use browser timeouts based on ScheduleRunnerPlugin::build
    if #[cfg(feature = "std")] {
        use std::thread;
    } else {
        mod fallback {
            use core::{hint::spin_loop, time::Duration};

            use crate::time::Instant;

            /// Puts the current thread to sleep for at least the specified amount of time.
            ///
            /// As this is a `no_std` fallback implementation, this will spin the current thread.
            pub fn sleep(dur: Duration) {
                let start = Instant::now();

                while start.elapsed() < dur {
                    spin_loop()
                }
            }
        }

        use fallback as thread;
    }
}