// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.

#nullable disable

using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Localisation;
using osu.Game.Graphics;
using osu.Game.Graphics.Sprites;
using osu.Game.Resources.Localisation.Web;
using osuTK;

namespace osu.Game.Screens.Play.HUD
{
    public partial class DefaultPerformancePointsCounter : PerformancePointsCounter
    {
        protected override bool IsRollingProportional => true;

        protected override double RollingDuration => 500;

        private const float alpha_when_invalid = 0.3f;

        [BackgroundDependencyLoader]
        private void load(OsuColour colours)
        {
            Colour = colours.BlueLighter;
        }

        public override bool IsValid
        {
            get => base.IsValid;
            set
            {
                if (value == IsValid)
                    return;

                base.IsValid = value;
                DrawableCount.FadeTo(value ? 1 : alpha_when_invalid, 1000, Easing.OutQuint);
            }
        }

        protected override LocalisableString FormatCount(int count) => count.ToString(@"D");

        protected override IHasText CreateText() => new TextComponent
        {
            Alpha = alpha_when_invalid
        };

        private partial class TextComponent : CompositeDrawable, IHasText
        {
            public LocalisableString Text
            {
                get => text.Text;
                set => text.Text = value;
            }

            private readonly OsuSpriteText text;

            public TextComponent()
            {
                AutoSizeAxes = Axes.Both;

                InternalChild = new FillFlowContainer
                {
                    AutoSizeAxes = Axes.Both,
                    Spacing = new Vector2(2),
                    Children = new Drawable[]
                    {
                        text = new OsuSpriteText
                        {
                            Anchor = Anchor.BottomLeft,
                            Origin = Anchor.BottomLeft,
                            Font = OsuFont.Numeric.With(size: 16, fixedWidth: true)
                        },
                        new OsuSpriteText
                        {
                            Anchor = Anchor.BottomLeft,
                            Origin = Anchor.BottomLeft,
                            Text = BeatmapsetsStrings.ShowScoreboardHeaderspp,
                            Font = OsuFont.Numeric.With(size: 8),
                            Padding = new MarginPadding { Bottom = 1.5f }, // align baseline better
                        }
                    }
                };
            }
        }
    }
}