// 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.Linq;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Cursor;
using osu.Framework.Graphics.Shapes;
using osu.Game.Graphics;
using osu.Game.Graphics.Containers;
using osu.Game.Graphics.Sprites;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.UI;
using osuTK;

namespace osu.Game.Overlays.Mods
{
    public partial class ModPresetTooltip : VisibilityContainer, ITooltip<ModPreset>
    {
        protected override Container<Drawable> Content { get; }

        private const double transition_duration = 200;

        public ModPresetTooltip(OverlayColourProvider colourProvider)
        {
            Width = 250;
            AutoSizeAxes = Axes.Y;

            Masking = true;
            CornerRadius = 7;

            InternalChildren = new Drawable[]
            {
                new Box
                {
                    RelativeSizeAxes = Axes.Both,
                    Colour = colourProvider.Background6
                },
                Content = new FillFlowContainer
                {
                    RelativeSizeAxes = Axes.X,
                    AutoSizeAxes = Axes.Y,
                    Padding = new MarginPadding(7),
                    Spacing = new Vector2(7)
                }
            };
        }

        private ModPreset? lastPreset;

        public void SetContent(ModPreset preset)
        {
            if (ReferenceEquals(preset, lastPreset))
                return;

            lastPreset = preset;
            Content.ChildrenEnumerable = preset.Mods.Select(mod => new ModPresetRow(mod));
        }

        protected override void PopIn() => this.FadeIn(transition_duration, Easing.OutQuint);
        protected override void PopOut() => this.FadeOut(transition_duration, Easing.OutQuint);

        public void Move(Vector2 pos) => Position = pos;

        private partial class ModPresetRow : FillFlowContainer
        {
            public ModPresetRow(Mod mod)
            {
                RelativeSizeAxes = Axes.X;
                AutoSizeAxes = Axes.Y;
                Direction = FillDirection.Vertical;
                Spacing = new Vector2(4);
                InternalChildren = new Drawable[]
                {
                    new FillFlowContainer
                    {
                        RelativeSizeAxes = Axes.X,
                        AutoSizeAxes = Axes.Y,
                        Direction = FillDirection.Horizontal,
                        Spacing = new Vector2(7),
                        Children = new Drawable[]
                        {
                            new ModSwitchTiny(mod)
                            {
                                Active = { Value = true },
                                Scale = new Vector2(0.6f),
                                Anchor = Anchor.CentreLeft,
                                Origin = Anchor.CentreLeft
                            },
                            new OsuSpriteText
                            {
                                Text = mod.Name,
                                Font = OsuFont.Default.With(size: 16, weight: FontWeight.SemiBold),
                                Origin = Anchor.CentreLeft,
                                Anchor = Anchor.CentreLeft,
                                Margin = new MarginPadding { Bottom = 2 }
                            }
                        }
                    }
                };

                if (!string.IsNullOrEmpty(mod.SettingDescription))
                {
                    AddInternal(new OsuTextFlowContainer
                    {
                        RelativeSizeAxes = Axes.X,
                        AutoSizeAxes = Axes.Y,
                        Padding = new MarginPadding { Left = 14 },
                        Text = mod.SettingDescription
                    });
                }
            }
        }
    }
}