using Annulus;
using Azimuth;
using Glass.Blacklight;
using System;

namespace Glass.Testbed
{
    public class PanelsTestCase : TestCase
    {
        private readonly World world;

        private int clickCount;

        public PanelsTestCase(string name, World world) : base(name)
        {
            this.world = world;
        }

        protected override void Populate()
        {
            var panelSize = new Vector(150, 300);

            var textMaterial = new TextMaterial
            {
                Font = Fonts.Philosopher32,
                Text = "Á | Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor " +
                    "incididunt ut labore et dolore magna aliqua. gy ᚠ",
                VerticalAlignment = Alignment.Vertical.Top,
            };

            // Measured up front so the row can be as tall as the taller of the two columns, which is what keeps
            // ContentBounds covering the whole case.
            Panel label = textMaterial
                .BuildControl(Constraints.Loose(new Vector(300, Scalar.PositiveInfinity)))
                .WrapIn(UiPacksheetMaterials.GreenPanel with { TintColor = System.Drawing.Color.Red });

            Vector labelSize = label.Bounds.Size;
            Rect topRow = ContentAggregator.NewRow(Math.Max(panelSize.Y, labelSize.Y));

            Rect panelSlot = topRow.NewCol(panelSize.X, margin: 40);
            var panel = NewChild<Panel>("panel");
            panel.Material = UiPacksheetMaterials.RedFlatPanel;
            panel.Bounds = panelSlot.NewRow(panelSize.Y);

            Rect insidePanel = Rect.FromPositionAndSize(Vector.Zero, panel.ClientRect.Size)
                .Erode(new Rect.BorderSize { Left = 10, Top = 10, Right = 10, Bottom = 10 });

            Rect counterRow = insidePanel.NewRow(60, margin: Gutter);
            var counterText = Widgets.ButtonLabel($"{clickCount}");
            var button = new Panel { Material = counterText }.FillParent(new Button
            {
                ButtonMaterial = UiPacksheetMaterials.YellowButton,
                Bounds = counterRow,
            });
            panel.ChildControls.Add(button);

            button.OnClick += delegate (in MouseState _, MouseButtonFlags __)
            {
                ++clickCount;
                counterText.Text = $"{clickCount}";
                FontRenderer.TextLayoutDebug = !FontRenderer.TextLayoutDebug;
                world.window.Invalidate();
            };

            var disableButton = Widgets.ButtonLabel("Disable")
                .BuildControl(Constraints.Unbounded)
                .WrapIn(UiPacksheetMaterials.YellowButton, insidePanel.TopLeft);
            panel.ChildControls.Add(disableButton);

            disableButton.OnClick += delegate (in MouseState _, MouseButtonFlags __)
            {
                button.Enabled = !button.Enabled;
                world.window.Invalidate();
            };

            label.Bounds = Rect.FromPositionAndSize(topRow.TopLeft, labelSize);
            Add(label);
        }
    }
}