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 * modification, are permitted provided that the following conditions are met:
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 *       notice, this list of conditions and the following disclaimer in the
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 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
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using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Threading;
using log4net.Config;
using NUnit.Framework;
using OpenMetaverse;
using OpenMetaverse.Assets;
using OpenSim.Framework;
using OpenSim.Region.CoreModules.Scripting.DynamicTexture;
using OpenSim.Region.CoreModules.Scripting.VectorRender;
using OpenSim.Region.Framework.Scenes;
using OpenSim.Region.Framework.Scenes.Serialization;
using OpenSim.Tests.Common;

namespace OpenSim.Region.CoreModules.Scripting.VectorRender.Tests
{
    [TestFixture]
    public class VectorRenderModuleTests : OpenSimTestCase
    {
        Scene m_scene;
        DynamicTextureModule m_dtm;
        VectorRenderModule m_vrm;

        private void SetupScene(bool reuseTextures)
        {
            m_scene = new SceneHelpers().SetupScene();

            m_dtm = new DynamicTextureModule();
            m_dtm.ReuseTextures = reuseTextures;
//            m_dtm.ReuseLowDataTextures = reuseTextures;

            m_vrm = new VectorRenderModule();

            SceneHelpers.SetupSceneModules(m_scene, m_dtm, m_vrm);
        }

        [Test]
        public void TestDraw()
        {
            TestHelpers.InMethod();

            SetupScene(false);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
            UUID originalTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;",
                "");

            Assert.That(originalTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }

        [Test]
        public void TestRepeatSameDraw()
        {
            TestHelpers.InMethod();

            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";

            SetupScene(false);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }

        [Test]
        public void TestRepeatSameDrawDifferentExtraParams()
        {
            TestHelpers.InMethod();

            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";

            SetupScene(false);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "alpha:250");

            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }

        [Test]
        public void TestRepeatSameDrawContainingImage()
        {
            TestHelpers.InMethod();

            string dtText
                = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World; Image http://0.0.0.0/shouldnotexist.png";

            SetupScene(false);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }

        [Test]
        public void TestDrawReusingTexture()
        {
            TestHelpers.InMethod();

            SetupScene(true);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);
            UUID originalTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;",
                "");

            Assert.That(originalTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }

        [Test]
        public void TestRepeatSameDrawReusingTexture()
        {
            TestHelpers.InMethod();
//            TestHelpers.EnableLogging();

            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";

            SetupScene(true);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            Assert.That(firstDynamicTextureID, Is.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }

        /// <summary>
        /// Test a low data dynamically generated texture such that it is treated as a low data texture that causes
        /// problems for current viewers.
        /// </summary>
        /// <remarks>
        /// As we do not set DynamicTextureModule.ReuseLowDataTextures = true in this test, it should not reuse the
        /// texture
        /// </remarks>
        [Test]
        public void TestRepeatSameDrawLowDataTexture()
        {
            TestHelpers.InMethod();
//            TestHelpers.EnableLogging();

            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";

            SetupScene(true);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "1024");

            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "1024");

            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }

        [Test]
        public void TestRepeatSameDrawDifferentExtraParamsReusingTexture()
        {
            TestHelpers.InMethod();

            string dtText = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World;";

            SetupScene(true);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "alpha:250");

            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }

        [Test]
        public void TestRepeatSameDrawContainingImageReusingTexture()
        {
            TestHelpers.InMethod();

            string dtText
                = "PenColour BLACK; MoveTo 40,220; FontSize 32; Text Hello World; Image http://0.0.0.0/shouldnotexist.png";

            SetupScene(true);
            SceneObjectGroup so = SceneHelpers.AddSceneObject(m_scene);

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            UUID firstDynamicTextureID = so.RootPart.Shape.Textures.GetFace(0).TextureID;

            m_dtm.AddDynamicTextureData(
                m_scene.RegionInfo.RegionID,
                so.UUID,
                m_vrm.GetContentType(),
                dtText,
                "");

            Assert.That(firstDynamicTextureID, Is.Not.EqualTo(so.RootPart.Shape.Textures.GetFace(0).TextureID));
        }
    }
}