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#include "ofxRaccoonImGui.hpp"
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#include "imgui_impl_glfw.h"
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#include "imgui_impl_opengl3.h"
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#include "imgui_impl_opengl2.h"
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namespace ofxRaccoonImGui {
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	void initialize() {
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		ImGui::CreateContext();
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		ImGuiIO& io = ImGui::GetIO();
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		io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
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		//io.IniFilename = nullptr;
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		ofAppGLFWWindow *window = dynamic_cast<ofAppGLFWWindow *>(ofGetWindowPtr());
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		GLFWwindow *glfwWindow = window->getGLFWWindow();
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		ImGui_ImplGlfw_InitForOpenGL(glfwWindow, true);
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		if (ofIsGLProgrammableRenderer()) {
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			ImGui_ImplOpenGL3_Init();
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		}
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		else {
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			ImGui_ImplOpenGL2_Init();
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		}
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	}
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	void shutdown() {
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		if (ofIsGLProgrammableRenderer()) {
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			ImGui_ImplOpenGL3_Shutdown();
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		}
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		else {
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			ImGui_ImplOpenGL2_Shutdown();
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		}
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		ImGui_ImplGlfw_Shutdown();
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		ImGui::DestroyContext();
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	}
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	static std::vector<std::shared_ptr<ofTexture>> textureStorage;
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	void beginGui() {
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		if (ofIsGLProgrammableRenderer()) {
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			ImGui_ImplOpenGL3_NewFrame();
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		}
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		else {
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			ImGui_ImplOpenGL2_NewFrame();
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		}
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		ImGui_ImplGlfw_NewFrame();
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		ImGui::NewFrame();
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	}
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	void endGui() {
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		ImGui::Render();
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		if (ofIsGLProgrammableRenderer()) {
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			ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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		}
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		else {
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			ImGui_ImplOpenGL2_RenderDrawData(ImGui::GetDrawData());
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		}
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		textureStorage.clear();
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	}
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	void image(const ofImage &ofimage) {
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		image(ofimage, ofimage.getWidth(), ofimage.getHeight());
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	}
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	void image(const ofImage &ofimage, float width, float height) {
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		if (ofimage.getTexture().getTextureData().textureTarget != GL_TEXTURE_2D) {
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			bool arb = ofGetUsingArbTex();
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			ofDisableArbTex();
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			std::shared_ptr<ofTexture> texture = std::shared_ptr<ofTexture>(new ofTexture());
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			textureStorage.push_back(texture);
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			texture->loadData(ofimage.getPixels());
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			ImGui::Image((ImTextureID)texture->getTextureData().textureID, ImVec2(width, height));
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			if (arb) {
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				ofEnableArbTex();
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			}
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		}
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		else {
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			ImGui::Image((ImTextureID)ofimage.getTexture().getTextureData().textureID, ImVec2(width, height));
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		}
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	}
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}