use mlua::UserData;
use super::{window::Window, GlobalState};

#[derive(Debug, Default)]
pub struct LogState {
    pub visible: bool,
}

impl LogState {
    pub const fn new() -> Self {
        Self { visible: false }
    }
}

macro_rules! cfg {
    () => {
        GlobalState::instance().log
    };
}

impl UserData for LogState {
    fn add_fields<'lua, F: mlua::prelude::LuaUserDataFields<'lua, Self>>(fields: &mut F) {
        fields.add_field_function_get("visible", |_, _| Ok(cfg!().visible));
        fields.add_field_function_set("visible", |_, _, visible: bool| {
            let mut state = GlobalState::instance_mut();
            state.log.visible = visible;

            if let Window::Log = state.active_window {
                if !visible {
                    state.set_focus(Window::View);
                }
            }

            Ok(())
        });
    }
}