// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE

using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Configuration;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics.Sprites;
using osu.Game.Graphics.UserInterface;
using osu.Game.Screens.Play.PlayerSettings;

namespace osu.Game.Tournament.Screens.Ladder.Components
{
    public class LadderEditorSettings : PlayerSettingsGroup
    {
        private const int padding = 10;

        protected override string Title => @"ladder";

        private PlayerSliderBar<double> sliderBestOf;

        private OsuTextBox textboxTeam1;
        private OsuTextBox textboxTeam2;

        [Resolved]
        private LadderEditorInfo editorInfo { get; set; } = null;

        [BackgroundDependencyLoader]
        private void load()
        {
            var teamEntries = editorInfo.Teams;

            Children = new Drawable[]
            {
                new PlayerCheckbox
                {
                    Bindable = editorInfo.EditingEnabled,
                    LabelText = "Enable editing"
                },
                new Container
                {
                    RelativeSizeAxes = Axes.X,
                    AutoSizeAxes = Axes.Y,
                    Padding = new MarginPadding { Horizontal = padding },
                    Children = new Drawable[]
                    {
                        new OsuSpriteText
                        {
                            Anchor = Anchor.CentreLeft,
                            Origin = Anchor.CentreLeft,
                            Text = "Team1",
                        },
                    },
                },
                textboxTeam1 = new OsuTextBox { RelativeSizeAxes = Axes.X, Height = 20 },
                new Container
                {
                    RelativeSizeAxes = Axes.X,
                    AutoSizeAxes = Axes.Y,
                    Padding = new MarginPadding { Horizontal = padding },
                    Children = new Drawable[]
                    {
                        new OsuSpriteText
                        {
                            Anchor = Anchor.CentreLeft,
                            Origin = Anchor.CentreLeft,
                            Text = "Team2",
                        },
                    },
                },
                textboxTeam2 = new OsuTextBox { RelativeSizeAxes = Axes.X, Height = 20 },
                new Container
                {
                    RelativeSizeAxes = Axes.X,
                    AutoSizeAxes = Axes.Y,
                    Padding = new MarginPadding { Horizontal = padding },
                    Children = new Drawable[]
                    {
                        new OsuSpriteText
                        {
                            Anchor = Anchor.CentreLeft,
                            Origin = Anchor.CentreLeft,
                            Text = "Best of",
                        },
                    },
                },
                sliderBestOf = new PlayerSliderBar<double>
                {
                    Bindable = new BindableDouble
                    {
                        Default = 11,
                        Value = 11,
                        MinValue = 1,
                        MaxValue = 21,
                        Precision = 1,
                    },
                }
            };

            editorInfo.Selected.ValueChanged += selection =>
            {
                textboxTeam1.Text = selection?.Team1.Value?.Acronym;
                textboxTeam2.Text = selection?.Team2.Value?.Acronym;
                sliderBestOf.Bindable.Value = selection?.BestOf ?? sliderBestOf.Bindable.Default;
            };

            textboxTeam1.OnCommit = (val, newText) =>
            {
                if (newText && editorInfo.Selected.Value != null)
                    editorInfo.Selected.Value.Team1.Value = teamEntries.FirstOrDefault(t => t.Acronym == val.Text);
            };

            textboxTeam2.OnCommit = (val, newText) =>
            {
                if (newText && editorInfo.Selected.Value != null)
                    editorInfo.Selected.Value.Team2.Value = teamEntries.FirstOrDefault(t => t.Acronym == val.Text);
            };

            sliderBestOf.Bindable.ValueChanged += val =>
            {
                if (editorInfo.Selected.Value != null) editorInfo.Selected.Value.BestOf.Value = (int)val;
            };

            editorInfo.EditingEnabled.ValueChanged += enabled =>
            {
                if (!enabled) editorInfo.Selected.Value = null;
            };
        }
    }
}