use std::time::{SystemTime, UNIX_EPOCH};

use mlua::{ExternalError, Lua, Table};

use super::Utils;

impl Utils {
	pub(super) fn time(lua: &Lua, ya: &Table) -> mlua::Result<()> {
		ya.raw_set(
			"time",
			lua.create_function(|_, ()| {
				Ok(SystemTime::now().duration_since(UNIX_EPOCH).map(|d| d.as_secs_f64()).ok())
			})?,
		)?;

		ya.raw_set(
			"sleep",
			lua.create_async_function(|_, secs: f64| async move {
				if secs < 0.0 {
					return Err("negative sleep duration".into_lua_err());
				}

				tokio::time::sleep(tokio::time::Duration::from_secs_f64(secs)).await;
				Ok(())
			})?,
		)?;

		Ok(())
	}
}