using UnitTestSharp;
using Azimuth;
using Annulus;

namespace Glass.UnitTests
{
    public class WindowMaterialTests : TestFixture
    {
        public static readonly WindowMaterial Framed = new WindowMaterial
        {
            Background = new Material { BorderSize = new Rect.BorderSize(10) },
            Content = new Material { BorderSize = new Rect.BorderSize(2) },
        };

        public class ContentSizeForTests : TestFixture
        {
            public void NoMaterials_TakesOffJustTheTitleBar()
            {
                CheckEqual(new Vector(200, 126), new WindowMaterial().ContentSizeFor(
                    new Vector(200, 150), titleBarHeight: 24));
            }

            public void WithMaterials_TakesOffTheFrameTheTitleBarAndTheContentsBorder()
            {
                CheckEqual(new Vector(176, 102), Framed.ContentSizeFor(new Vector(200, 150), titleBarHeight: 24));
            }

            public void TitleBarTallerThanTheRoomLeft_LeavesNoContent()
            {
                CheckEqual(new Vector(40, 0), new WindowMaterial().ContentSizeFor(
                    new Vector(40, 10), titleBarHeight: 24));
            }
        }

        public class BoundsSizeForTests : TestFixture
        {
            public void NoMaterials_AddsJustTheTitleBar()
            {
                CheckEqual(new Vector(200, 150), new WindowMaterial().BoundsSizeFor(
                    new Vector(200, 126), titleBarHeight: 24));
            }

            public void WithMaterials_InvertsContentSizeFor()
            {
                CheckEqual(new Vector(200, 150), Framed.BoundsSizeFor(new Vector(176, 102), titleBarHeight: 24));
            }
        }
    }
}