#include "Window.hpp"
#include "WindowContext.hpp"

#include "Graphics.hpp"

// -------- Debug UI -------- //
#include <imgui.h>
#include <imgui_impl_glfw.h>
#include <imgui_impl_opengl3.h>
#include <imgui_internal.h>

namespace tp {
	class DebugGUI::Context {
	public:
		ImGuiIO* io{};
		ImGuiContext* ctx{};
	};
}

using namespace tp;

DebugGUI::DebugGUI(Window* window) {
	mContext = new Context();

	IMGUI_CHECKVERSION();
	mContext->ctx = ImGui::CreateContext();
	mContext->io = &ImGui::GetIO();

	// Initialize ImGui with GLFW and OpenGL
	ImGui_ImplGlfw_InitForOpenGL(window->getContext()->window, true);

	// ImGui_ImplGlfw_GetBackendData();

	ImGui_ImplOpenGL3_Init("#version 330");

	ImGuiIO& io = ImGui::GetIO();
	io.Fonts->AddFontFromFileTTF("Font.ttf", 20.f);

	io.ConfigInputTrickleEventQueue = false;

	// appearance
	io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;

	return;

	auto& colors = ImGui::GetStyle().Colors;
	colors[ImGuiCol_WindowBg] = ImVec4{ 0.1f, 0.105f, 0.11f, 1.0f };

	// Headers
	colors[ImGuiCol_Header] = ImVec4{ 0.2f, 0.205f, 0.21f, 1.0f };
	colors[ImGuiCol_HeaderHovered] = ImVec4{ 0.3f, 0.305f, 0.31f, 1.0f };
	colors[ImGuiCol_HeaderActive] = ImVec4{ 0.15f, 0.1505f, 0.151f, 1.0f };

	// Buttons
	colors[ImGuiCol_Button] = ImVec4{ 0.2f, 0.205f, 0.21f, 1.0f };
	colors[ImGuiCol_ButtonHovered] = ImVec4{ 0.3f, 0.305f, 0.31f, 1.0f };
	colors[ImGuiCol_ButtonActive] = ImVec4{ 0.15f, 0.1505f, 0.151f, 1.0f };

	// Frame BG
	colors[ImGuiCol_FrameBg] = ImVec4{ 0.2f, 0.205f, 0.21f, 1.0f };
	colors[ImGuiCol_FrameBgHovered] = ImVec4{ 0.3f, 0.305f, 0.31f, 1.0f };
	colors[ImGuiCol_FrameBgActive] = ImVec4{ 0.15f, 0.1505f, 0.151f, 1.0f };

	// Tabs
	colors[ImGuiCol_Tab] = ImVec4{ 0.15f, 0.1505f, 0.151f, 1.0f };
	colors[ImGuiCol_TabHovered] = ImVec4{ 0.38f, 0.3805f, 0.381f, 1.0f };
	colors[ImGuiCol_TabActive] = ImVec4{ 0.28f, 0.2805f, 0.281f, 1.0f };
	colors[ImGuiCol_TabUnfocused] = ImVec4{ 0.15f, 0.1505f, 0.151f, 1.0f };
	colors[ImGuiCol_TabUnfocusedActive] = ImVec4{ 0.2f, 0.205f, 0.21f, 1.0f };

	// Title
	colors[ImGuiCol_TitleBg] = ImVec4{ 0.15f, 0.1505f, 0.151f, 1.0f };
	colors[ImGuiCol_TitleBgActive] = ImVec4{ 0.15f, 0.1505f, 0.151f, 1.0f };
	colors[ImGuiCol_TitleBgCollapsed] = ImVec4{ 0.15f, 0.1505f, 0.151f, 1.0f };
}

DebugGUI::~DebugGUI() {
	ImGui_ImplOpenGL3_Shutdown();
	ImGui_ImplGlfw_Shutdown();
	ImGui::DestroyContext();

	delete mContext;
}

void DebugGUI::procBegin() {
}

void DebugGUI::procEnd() {
}

void DebugGUI::drawBegin() {
	ImGui_ImplOpenGL3_NewFrame();
	ImGui_ImplGlfw_NewFrame();
	ImGui::NewFrame();
}

void DebugGUI::drawEnd() {
	ImGui::Render();
	ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
}