use arkham::prelude::*;

fn main() {
    App::new(root).run().expect("couldnt launch app");
}

fn root(ctx: &mut ViewContext) {
    let size = ctx.size();
    ctx.fill(size, Rune::new().bg(Color::DarkGrey));
    ctx.component(Rect::new((10, 10), (30, 1)), hello_world);
    ctx.component(Rect::new((10, 11), (20, 1)), show_key_press);
    ctx.component(Rect::new(0, (size.width, 1)), quit_nag);
}

fn hello_world(ctx: &mut ViewContext) {
    ctx.insert(0, "Hello World, Press a key");
}

fn show_key_press(ctx: &mut ViewContext, kb: Res<Keyboard>) {
    if let Some(c) = kb.char() {
        ctx.insert(0, format!("Key press: {}", c));
    }
}

fn quit_nag(ctx: &mut ViewContext) {
    let size = ctx.size();
    ctx.insert(
        ((size.width / 2) - 7, 0),
        "Press Q to Quit".to_runes().fg(Color::Red),
    );
}