#pragma once

#include "GraphicsApi.h"
#include "Plane3D.h"

//! DirectX 11 Types

struct ID3D11Device;
struct ID3D11DeviceContext;
struct IDXGISwapChain;
struct ID3D11Texture2D;
struct ID3D11SamplerState;
struct ID3D11ShaderResourceView;
struct ID3D11RenderTargetView;
struct ID3D11DepthStencilView;
struct ID3D11DepthStencilState;
struct ID3D11RasterizerState;
struct ID3D11BlendState;
struct D3D11_VIEWPORT;

namespace Framework
{
    class DX11StructuredBuffer;
    class DX11PixelShader;
    class DX11VertexShader;
    class DX11Buffer;
    class TextureList;
    class Model3D;
    class TextureModel;

    class DirectX11 : public GraphicsApi
    {
    private:
        ID3D11Device* d3d11Device;
        ID3D11DeviceContext* d3d11Context;
        IDXGISwapChain* d3d11SpawChain;
        Texture* uiTexture;
        DX11VertexShader* vertexShader;
        DX11PixelShader* pixelShader;
        ID3D11SamplerState* sampleState;
        ID3D11RenderTargetView* rtview;
        ID3D11DepthStencilView* dsView;
        ID3D11Texture2D* depthStencilBuffer;
        ID3D11DepthStencilState* depthStencilState;
        ID3D11DepthStencilState* depthDisabledStencilState;
        ID3D11BlendState* blendStateAlphaBlend;
        D3D11_VIEWPORT* vp;
        TextureModel* texturModel;
        TextureList* texturRegister;
        Texture* defaultTexture;
        DX11StructuredBuffer* diffuseLights;
        DX11StructuredBuffer* pointLights;
        Mat4<float> matrixBuffer[MAX_KNOCHEN_ANZ];
        Mat4<float> viewAndProj[2];
        Vec3<float> kamPos;
        Plane3D<float> frustrum[6];
        int lastModelId;
        DX11Buffer** indexBuffers;
        DX11Buffer** vertexBuffers;

        void renderObject(Model3D* zObj);
        DX11Buffer* createIndexBuffer();
        DX11Buffer* createVertexBuffer();

    protected:
        Critical deviceLock;
        ID3D11RasterizerState* texturRS;
        ID3D11RasterizerState* meshRS;
        DLLEXPORT virtual DX11VertexShader* initializeVertexShader(
            unsigned char* byteCode, int size);
        DLLEXPORT virtual DX11PixelShader* initializePixelShader(
            unsigned char* byteCode, int size);
        DLLEXPORT ID3D11DeviceContext* zContext();

    public:
        DLLEXPORT DirectX11();
        DLLEXPORT ~DirectX11();
        DLLEXPORT void initialize(NativeWindow* fenster,
            Vec2<int> backBufferSize,
            bool fullScreen) override;
        DLLEXPORT void beginFrame(
            bool fill2D, bool fill3D, int fillColor) override;
        DLLEXPORT void renderKamera(Cam3D* zKamera) override;
        DLLEXPORT void renderKamera(Cam3D* zKamera, Texture* zTarget) override;
        DLLEXPORT void presentFrame() override;
        DLLEXPORT Texture* createOrGetTexture(
            const char* name, Image* b, TextureDirection dir) override;
        DLLEXPORT Image* zUIRenderImage() const override;
        DLLEXPORT virtual DXBuffer* createStructuredBuffer(int eSize) override;
        DLLEXPORT virtual Model3DData* createModel(const char* name) override;
        //! Checks whether a sphere is in the visible space of the world and
        //! needs to be drawn \param pos The center of the sphere \param
        //! radius The radius of the sphere \param dist A pointer to a
        //! float where the square of the distance to the camera position
        //! is stored if this function returns true and the pointer is not 0
        DLLEXPORT bool isInFrustrum(
            const Vec3<float>& pos, float radius, float* dist = 0) const;
        DLLEXPORT bool isInFrustrum(
            const Vec3<float>& pos, Vec3<float> radius, float* dist = 0) const;

        DLLEXPORT static bool isAvailable();
    };
} // namespace Framework