use iris::prelude::*;

const ROWS: usize = 1000;

pub(crate) fn build<Rsc: UiRsc>(
    rsc: &mut Rsc,
    ui_state: &mut impl HasRoot<Rsc>,
) -> WeakWidget<Span> {
    let mut span = Span::empty(Dir::DOWN);
    for _ in 0..ROWS {
        let img = iris::image::DynamicImage::new_rgba8(32, 32);
        let widget = image::<Rsc>(img)(rsc);
        let widget = rsc.ui_mut().widgets.add_strong(widget);
        span.push(widget.any());
    }
    let span = rsc.ui_mut().widgets.add_strong(span);
    let span_weak = span.weak();
    let root = rsc
        .ui_mut()
        .widgets
        .add_strong(ScrollArea::new(span.any(), Axis::Y, Pin::End));
    ui_state.set_root(rsc, root.any());
    span_weak
}