using NUnit.Framework;
using UnityEngine;
using UnityEngine.Graphing;
using UnityEngine.MaterialGraph;

namespace UnityEditor.MaterialGraph.UnitTests
{
    [TestFixture]
    public class PropertyChunkTests
    {
        class TestPropertyChunch : PropertyChunk
        {
            public TestPropertyChunch(string propertyName, string propertyDescription, HideState hideState)
                : base(propertyName, propertyDescription, hideState)
            {}

            public override string GetPropertyString()
            {
                return propertyName;
            }
        }

        [TestFixtureSetUp]
        public void RunBeforeAnyTests()
        {
            Debug.unityLogger.logHandler = new ConsoleLogHandler();
        }

        [SetUp]
        public void TestSetUp()
        {
        }

        private const string kPropertyName = "ThePropertyName";
        private const string kPropertyDescription = "ThePropertyDescription";

        [Test]
        public void TestSimplePropertyChunkIsConstructedProperly()
        {
            var chunk = new TestPropertyChunch(kPropertyName, kPropertyDescription, PropertyChunk.HideState.Visible);
            Assert.AreEqual(kPropertyName, chunk.propertyName);
            Assert.AreEqual(kPropertyDescription, chunk.propertyDescription);
            Assert.AreEqual(kPropertyName, chunk.GetPropertyString());
            Assert.AreEqual(PropertyChunk.HideState.Visible, chunk.hideState);
        }

        [Test]
        public void TestColorChunkReturnsValidValues()
        {
            var expectedPropertyString = "ThePropertyName(\"ThePropertyDescription\", Color) = (1,0,0,1)";
			var chunk = new ColorPropertyChunk(kPropertyName, kPropertyDescription, Color.red, ColorPropertyChunk.ColorType.Default, PropertyChunk.HideState.Visible);
            Assert.AreEqual(kPropertyName, chunk.propertyName);
            Assert.AreEqual(kPropertyDescription, chunk.propertyDescription);
            Assert.AreEqual(expectedPropertyString, chunk.GetPropertyString());
            Assert.AreEqual(Color.red, chunk.defaultColor);
            Assert.AreEqual(PropertyChunk.HideState.Visible, chunk.hideState);
        }

        [Test]
        public void TestFloatChunkReturnsValidValues()
        {
            var expectedPropertyString = "ThePropertyName(\"ThePropertyDescription\", Float) = 0.5";
            var chunk = new FloatPropertyChunk(kPropertyName, kPropertyDescription, 0.5f, PropertyChunk.HideState.Visible);
            Assert.AreEqual(kPropertyName, chunk.propertyName);
            Assert.AreEqual(kPropertyDescription, chunk.propertyDescription);
            Assert.AreEqual(expectedPropertyString, chunk.GetPropertyString());
            Assert.AreEqual(0.5f, chunk.defaultValue);
            Assert.AreEqual(PropertyChunk.HideState.Visible, chunk.hideState);
        }

        [Test]
        public void TestVectorChunkReturnsValidValues()
        {
            var vector = new Vector4(0.2f, 0.4f, 0.66f, 1.0f);
            var expectedPropertyString = "ThePropertyName(\"ThePropertyDescription\", Vector) = (0.2,0.4,0.66,1)";
            var chunk = new VectorPropertyChunk(kPropertyName, kPropertyDescription, vector, PropertyChunk.HideState.Visible);
            Assert.AreEqual(kPropertyName, chunk.propertyName);
            Assert.AreEqual(kPropertyDescription, chunk.propertyDescription);
            Assert.AreEqual(expectedPropertyString, chunk.GetPropertyString());
            Assert.AreEqual(vector, chunk.defaultValue);
            Assert.AreEqual(PropertyChunk.HideState.Visible, chunk.hideState);
        }

        [Test]
        public void TestTextureChunkReturnsValidValues()
        {
            var expectedPropertyString = "ThePropertyName(\"ThePropertyDescription\", 2D) = \"bump\" {}";
            var chunk = new TexturePropertyChunk(kPropertyName, kPropertyDescription, null, TextureType.Bump, PropertyChunk.HideState.Visible, TexturePropertyChunk.ModifiableState.Modifiable);
            Assert.AreEqual(kPropertyName, chunk.propertyName);
            Assert.AreEqual(kPropertyDescription, chunk.propertyDescription);
            Assert.AreEqual(expectedPropertyString, chunk.GetPropertyString());
            Assert.AreEqual(null, chunk.defaultTexture);
            Assert.AreEqual(PropertyChunk.HideState.Visible, chunk.hideState);
        }

        [Test]
        public void TestTexturePropertyChunkGeneratesValidPropertyStringVisibleNotModifiable()
        {
            var expectedPropertyString = "[NonModifiableTextureData] ThePropertyName(\"ThePropertyDescription\", 2D) = \"gray\" {}";
            var chunk = new TexturePropertyChunk(kPropertyName, kPropertyDescription, null, TextureType.Gray, PropertyChunk.HideState.Visible, TexturePropertyChunk.ModifiableState.NonModifiable);
            Assert.AreEqual(expectedPropertyString, chunk.GetPropertyString());
            Assert.AreEqual(TexturePropertyChunk.ModifiableState.NonModifiable, chunk.modifiableState);
            Assert.AreEqual(PropertyChunk.HideState.Visible, chunk.hideState);
        }

        [Test]
        public void TestTexturePropertyChunkGeneratesValidPropertyStringHiddenNotModifiable()
        {
            var expectedPropertyString = "[HideInInspector] [NonModifiableTextureData] ThePropertyName(\"ThePropertyDescription\", 2D) = \"white\" {}";
            var chunk = new TexturePropertyChunk(kPropertyName, kPropertyDescription, null, TextureType.White, PropertyChunk.HideState.Hidden, TexturePropertyChunk.ModifiableState.NonModifiable);
            Assert.AreEqual(expectedPropertyString, chunk.GetPropertyString());
            Assert.AreEqual(TexturePropertyChunk.ModifiableState.NonModifiable, chunk.modifiableState);
            Assert.AreEqual(PropertyChunk.HideState.Hidden, chunk.hideState);
        }
    }
}