use egui::NumExt as _;

use re_types::components::Range1D;
use re_viewer_context::MaybeMutRef;

pub fn edit_range1d(
    _ctx: &re_viewer_context::ViewerContext<'_>,
    ui: &mut egui::Ui,
    value: &mut MaybeMutRef<'_, Range1D>,
) -> egui::Response {
    if let Some(value) = value.as_mut() {
        let [min, max] = &mut value.0 .0;
        let range = (*max - *min).abs();
        let speed = (range * 0.01).at_least(0.001);

        let response_min = ui.add(
            egui::DragValue::new(min)
                .clamp_to_range(false)
                .range(f64::NEG_INFINITY..=*max)
                .speed(speed),
        );
        ui.label("-");
        let response_max = ui.add(
            egui::DragValue::new(max)
                .clamp_to_range(false)
                .range(*min..=f64::INFINITY)
                .speed(speed),
        );

        response_min | response_max
    } else {
        let [min, max] = value.0 .0;
        ui.label(format!(
            "{} - {}",
            re_format::format_f64(min),
            re_format::format_f64(max)
        ))
    }
}