// 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.

using System;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.UserInterface;
using osu.Game.Graphics;
using osu.Game.Scoring;

namespace osu.Game.Screens.Ranking.Expanded.Accuracy
{
    public partial class GradedCircles : CompositeDrawable
    {
        private double progress;

        public double Progress
        {
            get => progress;
            set
            {
                progress = value;
                dProgress.RevealProgress = value;
                cProgress.RevealProgress = value;
                bProgress.RevealProgress = value;
                aProgress.RevealProgress = value;
                sProgress.RevealProgress = value;
                xProgress.RevealProgress = value;
            }
        }

        private readonly GradedCircle dProgress;
        private readonly GradedCircle cProgress;
        private readonly GradedCircle bProgress;
        private readonly GradedCircle aProgress;
        private readonly GradedCircle sProgress;
        private readonly GradedCircle xProgress;

        public GradedCircles(double accuracyC, double accuracyB, double accuracyA, double accuracyS, double accuracyX)
        {
            InternalChildren = new Drawable[]
            {
                dProgress = new GradedCircle(0.0, accuracyC)
                {
                    Colour = OsuColour.ForRank(ScoreRank.D),
                },
                cProgress = new GradedCircle(accuracyC, accuracyB)
                {
                    Colour = OsuColour.ForRank(ScoreRank.C),
                },
                bProgress = new GradedCircle(accuracyB, accuracyA)
                {
                    Colour = OsuColour.ForRank(ScoreRank.B),
                },
                aProgress = new GradedCircle(accuracyA, accuracyS)
                {
                    Colour = OsuColour.ForRank(ScoreRank.A),
                },
                sProgress = new GradedCircle(accuracyS, accuracyX - AccuracyCircle.VIRTUAL_SS_PERCENTAGE)
                {
                    Colour = OsuColour.ForRank(ScoreRank.S),
                },
                xProgress = new GradedCircle(accuracyX - AccuracyCircle.VIRTUAL_SS_PERCENTAGE, 1.0)
                {
                    Colour = OsuColour.ForRank(ScoreRank.X)
                }
            };
        }

        private partial class GradedCircle : CircularProgress
        {
            public double RevealProgress
            {
                set => Current.Value = Math.Clamp(value, startProgress, endProgress) - startProgress;
            }

            private readonly double startProgress;
            private readonly double endProgress;

            public GradedCircle(double startProgress, double endProgress)
            {
                this.startProgress = startProgress + AccuracyCircle.GRADE_SPACING_PERCENTAGE * 0.5;
                this.endProgress = endProgress - AccuracyCircle.GRADE_SPACING_PERCENTAGE * 0.5;

                Anchor = Anchor.Centre;
                Origin = Anchor.Centre;
                RelativeSizeAxes = Axes.Both;
                InnerRadius = AccuracyCircle.RANK_CIRCLE_RADIUS;
                Rotation = (float)this.startProgress * 360;
            }
        }
    }
}