#include "../../YoggieEngine/src/EntryPoint.h"
#include "../../YoggieEngine/src/AssetManager/ModelImporter.h"

#include <nfd.h>

#include <glm/glm.hpp>
#include <glm/gtc/type_ptr.hpp>
#include <glm/gtc/matrix_transform.hpp>

#include "UI/GUIRenderer.h"
#include "UI/Widgets.h"
#include "Project/Project.h"
#include "SceneSerializer.h"
#include "AssetManagement/AssetManager.h"
#include "UI/MainMenuBar.h"


const unsigned int MS_PER_UPDATE = 2;
void CreateTestProject(std::unique_ptr<Project>& project, Scene& scene);

class Editor : public Application {
public:
    Editor() : Application("Editor"){
    }

    void Run() override
    {

        auto NativeEditorWindow = NativeWindow(1200, 700);

        framebuffer = new Framebuffer(800, 600);
        auto renderer =  Renderer(RendererConfig{ 
            1200, // Screen Width
            700, // Screen Height
            glm::vec3{0,0,0}, // Clear Color
            true // Depth testing  
            });

        auto GuiRenderer = GUIRenderer(NativeEditorWindow);

        Selected = (entt::entity)-1;

        CreateTestProject(CurrentProject, ActiveScene);

        ActiveScene.Start();

        renderer.setCurrentFrameBuffer(*framebuffer);

       
        double previous = glfwGetTime();
        double lag = 0.0;
        while (!NativeEditorWindow.WindowShouldClose())
        {

            double current = glfwGetTime();
            double elapsed = current - previous;
            previous = current;
            lag += elapsed;

            NativeEditorWindow.Poll();

            while (lag >= MS_PER_UPDATE) 
            {
                ActiveScene.Update();
                lag -= MS_PER_UPDATE;
            }

            // submit DrawCommands for all render3DComponents
            auto group = ActiveScene.getReg().view<TransformComponent, Render3DComponent>();
            group.each([&renderer](auto enity, TransformComponent& t, Render3DComponent& renderComponent) {
                renderer.Submit(renderComponent, t);
            });

            renderer.Render();

            GuiRenderer.Begin();
            RenderGUI();
            GuiRenderer.End();
            
            NativeEditorWindow.SwapBuffers();
            glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);


        }


        delete framebuffer;
        ActiveScene.Stop();

    }

 
    void RenderGUI() {
        ImGui::DockSpaceOverViewport(ImGui::GetMainViewport());

        // Show a menu bar
        {
            MainMenuBar menuBar= MainMenuBar();
            menuBar.ApplicationMenu(CurrentProject);
            menuBar.SceneMenu(CurrentProject, ActiveScene);
        }

        {
            ProjectInfo projectInfo(*(CurrentProject.get()));
        }

        {
            Viewport sceneview = Viewport(*framebuffer);
        }

        {
            SceneExplorer explorer(Selected, ActiveScene);
        }


        {
            Inspector inspector = Inspector();
            if (ActiveScene.getReg().valid(Selected)) {
                Entity SelectedEntity = Entity(Selected, &ActiveScene);
                inspector.AddComponentDropDown(SelectedEntity);
                inspector.ShowComponents(SelectedEntity);
            }
        }

        {
            Settings();
        }

        {
          //  AssetFinder assetsView = AssetFinder();
        }
        
        
        {
            Console console = Console();
            console.Show();
        }

        ImGui::ShowDemoWindow();
        ImGui::ShowMetricsWindow();

    }


private:
    std::unique_ptr<Project> CurrentProject;
    Scene ActiveScene;
    entt::entity  Selected;
    Framebuffer* framebuffer ;


};

YoggieEngine::Application* CreateApplication() {
   
    return new Editor();

}

void CreateTestProject(std::unique_ptr<Project>& project, Scene& scene ) {
    project = std::make_unique<Project>();
    std::string path = (std::filesystem::current_path()).string();
    project.get()->setProjectDirectory(path);

    AssetManager::Init();
    AssetManager::setAssetPath(project.get()->GetProjectDirectory());
    AssetManager::BuildAssetView();

    // Create a level and load it as the current level
    auto importer = ModelImporter();

    // Create a cube 
    auto model = importer.Import("build/Debug/Models/Cube.obj");
    auto cube = scene.AddEntity("cube");

    auto& render3DComponent = cube.AddComponent<Render3DComponent>();
    render3DComponent.mesh = *(model->renderable->mesh);

    cube.GetComponent<TransformComponent>().Position = glm::vec3(1.0f, 0.0f, 5.0f);

    auto cube2 = scene.AddEntity("Cube1");
    auto& rendercube2 = cube2.AddComponent<Render3DComponent>();
    rendercube2.mesh = *(model->renderable->mesh);

    // create an ambient light source
    auto AmbientLight = scene.AddEntity("AmbientLight");
    auto light = AmbientLight.AddComponent<LightComponent>();
    light.Color = glm::vec3(1.0f);
    light.Strength = 1.0f;
}