using Goo;
using Goo.Animation;
using Sandbox;
using Sandbox.UI;
using static Sandbox.DemoTokens;

namespace Sandbox.KeystrokeViz;

public readonly record struct ChipAnim(
    AgePhase Phase,
    float    ChipHeight,
    float    SlideRiseFraction,
    float    FontSize,
    float    BaseOpacity,
    bool     SlideFromBelow );

public static class EntryChip
{
    public static Container Build( int key, string label, float age, float idleAge, ChipAnim a )
    {
        var p = a.Phase.Project( age, idleAge );

        float yOff    = (a.SlideFromBelow ? 1f : -1f) * a.ChipHeight * a.SlideRiseFraction * (1f - p.Slide);
        float opacity = p.Opacity * a.BaseOpacity;

        return new Container
        {
            Key             = key.ToString(),
            Height          = a.ChipHeight,
            PaddingLeft     = 14,
            PaddingRight    = 14,
            PaddingTop      = 6,
            PaddingBottom   = 6,
            BackgroundColor = Ink2,
            BorderRadius    = 6f,
            Opacity         = opacity,
            Transform       = Goo.PanelTransform.Translate( 0, yOff ),
            JustifyContent  = Justify.Center,
            AlignItems      = Align.Center,
            Children        = { new Text( label ) { FontSize = a.FontSize, FontColor = FgPrimary } },
        };
    }
}