#include <string>

#include <MyGraphicsEngine/Shader.h>
#include <MyGraphicsEngine/Window.h>
#include <MyGraphicsEngine/Camera.h>

#include <glm/glm.hpp>

#include "imgui.h"
#include "backends/imgui_impl_glfw.h"
#include "backends/imgui_impl_opengl3.h"
#include "Renderable.h"
#include <filesystem>



extern "C"
 {
    #include "lauxlib.h"
    #include "lua.h"
    #include "lualib.h"
}

/*
#include <gorilla/gau.h>
#include <gorilla/ga.h>
*/

int main(int argc, char* argv[]) {

    char cwd[256];
    getcwd(cwd, 256);
    spdlog::info("Working directory: {}", cwd);
    
  
    BarinkWindow GameWindow(800, 600);
   
    IMGUI_CHECKVERSION();
    ImGui::CreateContext();
    ImGuiIO& io = ImGui::GetIO();
    (void)io;

    ImGui::StyleColorsDark();
    ImGui_ImplGlfw_InitForOpenGL(GameWindow.windowptr(), true);
    ImGui_ImplOpenGL3_Init("#version 440");
    
    Camera cam(glm::vec3(0.0f, 1.5f, -10.0f), glm::vec3(0.0f, 0.0f, 0.0f), 90.0f);
    Renderable Cube = Renderable::Load();


    spdlog::info("==== Load Shader(s) ====");
    std::string vertexShaderSource = "build/SandboxApplication/Debug/test.vs";
    std::string fragmentShaderSource = "build/SandboxApplication/Debug/test.fs";
    Shader shader (vertexShaderSource, fragmentShaderSource);

    lua_State* L = luaL_newstate();
    luaL_openlibs(L);
    luaL_dostring(L, "print('BarinkEngine')");
    spdlog::info("==== Run script ====");
    luaL_dofile(L,"build/SandboxApplication/Debug/script.lua");
    

    /*
    * gau_Manager* mgr;
    ga_Mixer* mixer;
    ga_Sound sound;
    ga_Handle handle;
    gau_SampleSourceLoop* loopSrc = 0;
    gau_SampleSourceLoop** pLoopSrc = &loopSrc;
    gc_int32 loop = 0;
    gc_int32 quit = 0;


    gc_initialize(0);
    mgr = gau_manager_create();
    mixer = gau_manager_mixer(mgr);
    */
    
  

    while (!GameWindow.WindowShouldClose()) {
        glm::mat4 tran = glm::translate(glm::mat4(), Cube.transform.Position);
        glm::mat4 scale = glm::scale(glm::mat4(), Cube.transform.Scale);
        glm::mat4 rot =
            glm::rotate(glm::mat4(), glm::radians(Cube.transform.Rotation.x), glm::vec3(1.0f, 0.0f, 0.0f)) *
            glm::rotate(glm::mat4(), glm::radians(Cube.transform.Rotation.y), glm::vec3(0.0f, 1.0f, 0.0f)) *
            glm::rotate(glm::mat4(), glm::radians(Cube.transform.Rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));


        glm::mat4 model = tran * rot * scale;

        glm::mat4 projection = glm::perspective(cam.Zoom, (800.0f / 600.0f), 0.001f, 100.0f);


        GameWindow.Poll();

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);

        shader.Use();
        shader.setUniformMat4("P", projection);
        shader.setUniformMat4("M", model);
        shader.setUniformMat4("V", cam.GetViewMatrix());
        
        Cube.Draw();

        ImGui_ImplOpenGL3_NewFrame();
        ImGui_ImplGlfw_NewFrame();
        ImGui::NewFrame();

        ImGui::Begin("Test");

        ImGui::SliderFloat("Scale Y:", (float*)&Cube.transform.Scale.y, 1, 4);
        ImGui::SliderFloat("Scale X:", (float*)&Cube.transform.Scale.x, 1, 4);

        ImGui::SliderFloat("Camera Zoom:", &cam.Zoom, 40, 190);
        ImGui::SliderFloat("Position X:", (float*)&Cube.transform.Position.x, -9, -60);

        ImGui::SliderFloat("Rotate Y:", (float*)&Cube.transform.Rotation.y, 0, 180);
        ImGui::SliderFloat("Rotate Z:", (float*)&Cube.transform.Rotation.z, 0, 180);

        ImGui::End();



        ImGui::Render();
        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());


        GameWindow.SwapBuffers();
    }

    // Cleanup
    ImGui_ImplOpenGL3_Shutdown();
    ImGui_ImplGlfw_Shutdown();
    ImGui::DestroyContext();

    Cube.VAO.Delete();
    Cube.elementBuffer.Delete();
    

}