using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

using Aiwaz.Common;
using Aiwaz.Core;
using Aiwaz.Contracts;
using Aiwaz.Resources;
using Aiwaz.Resources.Prefab;

using SlimDX.Windows;
using System.Drawing;
using Aiwaz.Common.Animations;

namespace Aiwaz.Demo
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            var console = new Win32Console();

            var renderForm = new RenderForm("Aiwaz.Demo");
            Engine.Initialize(null);

            var model = new BluModel(new BluModelParams() { FileName = "Data/ChamferBox.blu" } );
            model.RootTransformation.LocalScale = new SlimDX.Vector3(0.1f, 0.1f, 0.1f);
            model.RootTransformation.LocalPosition = new SlimDX.Vector3(1.0f, 0.0f, 2.0f);

            var swapChain = new SwapChain(renderForm.Handle);
            swapChain.ClearColor = new SlimDX.Color4(Color.DarkBlue);
            swapChain.HasDepthStencilBuffer = true;
            swapChain.VSync = false;

            var camera = new PerspectiveCamera(new PerspectiveCameraParams() { aspectRatio = (float)renderForm.Size.Width / renderForm.Size.Height } );
            var normalMapping = new Shader(new ShaderParams() { FileName = "Data/NormalOutput.fx", TechniqueName = "NormalMapping" } );
            var wallTexture = new Texture(new FileTextureParams() { FileName = "Data/Wall.jpg" } );
            var wallNormalTexture = new Texture(new FileTextureParams() { FileName = "Data/WallNormal.jpg" });
            wallNormalTexture.BindingName = "Normal";
            var roomCube = new Cube(new CubeParams() { Width = 10.0f, Height = 10.0f, Depth = 10.0f, IsInverted = true } );
            
            var roomCubeTransformation = new Transformation(new DefaultTransformationBindings());
            roomCubeTransformation.LocalPosition = new SlimDX.Vector3(0.0f, 0.0f, 2.0f);

            var lightPosition = new ReferenceT<SlimDX.Vector3>(new SlimDX.Vector3(0.0f, 1.0f, 0.0f));
            var lightColor = new ReferenceT<SlimDX.Vector4>(new SlimDX.Vector4(2.0f, 2.0f, 1.0f, 1.0f));

            var lightParameters = new ShaderParameterSet();
            lightParameters.IsPreconditionForFollowingShaders = true;
            lightParameters.SetParameter("LightPosition", lightPosition, ParameterBindType.BindBySemantic);
            lightParameters.SetParameter("LightColor", lightColor, ParameterBindType.BindBySemantic);

            var rootRenderNode = new RenderCommandNode();
            rootRenderNode.Children.Add(swapChain);
            rootRenderNode.Children.Add(camera);
            rootRenderNode.Children.Add(lightParameters);
            rootRenderNode.Children.Add(roomCubeTransformation);
            rootRenderNode.Children.Add(normalMapping);
            rootRenderNode.Children.Add(wallTexture);
            rootRenderNode.Children.Add(wallNormalTexture);
            rootRenderNode.Children.Add(roomCube.GeometryBuffer);
            rootRenderNode.Children.Add(model.RootNode);

            var refreshTimer = 0.0f;
            MessagePump.Run(renderForm, () =>
            {
                rootRenderNode.Update(false);
                rootRenderNode.ProcessCommands();
                swapChain.Present();

                float time = (float)HiPerfTimer.ElapsedTime * 10.0f;
                lightColor.Value = new SlimDX.Vector4(2.0f, 2.0f, 1.0f, 1.0f) * ((float)Math.Sin(time)+ 2.0f);
                roomCubeTransformation.LocalRotationYPR = new SlimDX.Vector3(time, time, time) * 0.01f;

                refreshTimer -= (float)HiPerfTimer.LastDeltaTime;
                if (refreshTimer < 0.0f)
                {
                    refreshTimer = 1.0f;
                    renderForm.Text = string.Format("Aiwaz: {0:F2} FPS ({1:F2} ms)", 1.0 / HiPerfTimer.LastDeltaTime, HiPerfTimer.LastDeltaTime * 1000);
                }
                model.RootTransformation.LocalRotationYPR = new SlimDX.Vector3(time, time, time) * 0.03f;
            });

            renderForm = null;
            swapChain = null;
            Engine.Uninitialize();
        }
    }
}