#pragma once

#include "WidgetBase.hpp"

#include "imgui.h"
#include "imgui_internal.h"

namespace tp {
	template <typename Events, typename Canvas>
	class TextInputWidget : public Widget<Events, Canvas> {
	public:
		TextInputWidget() = default;

		void drawCallback(Canvas&) override {
			nChanged = false;

			const auto col = mAccentColor;
			const auto colSel = mHoveredColor;

			ImGui::GetStyle().Colors[ImGuiCol_FrameBg] = { col.r, col.g, col.b, col.a };
			ImGui::GetStyle().Colors[ImGuiCol_TextSelectedBg] = { colSel.r, colSel.g, colSel.b, colSel.a };

			ImGui::SetNextWindowPos({ this->mArea.x, this->mArea.y });
			ImGui::SetNextWindowSize({ this->mArea.z, this->mArea.w });
			ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, { 0, 0 });
			ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, mRounding * 1.5f);
			ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, { mPadding, mPadding });

			// ImGui::PushID((int) alni(this));
			ImGui::Begin(
				mId.c_str(),
				0,
				ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoBackground |
					ImGuiWindowFlags_NoResize
			);

			if (mMultiline) {
				if (ImGui::InputTextMultiline("input", mBuff, mMaxBufferSize, { this->mArea.z, this->mArea.w })) {
					mValue = mBuff;
					nChanged = true;
				}
			} else {
				if (ImGui::InputTextEx("input", mId.c_str(), mBuff, mMaxBufferSize, { this->mArea.z, this->mArea.w }, 0)) {
					mValue = mBuff;
					nChanged = true;
				}
			}

			ImGui::End();
			ImGui::PopStyleVar(3);
		}

	public:
		void updateConfigCallback(WidgetManager& wm) override {
			wm.setActiveId("TextInput");

			mAccentColor = wm.getColor("Accent", "Accent");
			mBaseColor = wm.getColor("Base", "Base");
			mRounding = wm.getNumber("Rounding", "Rounding");
			mHoveredColor = wm.getColor("Hovered", "Accent");
			mPadding = wm.getNumber("Padding", "Padding");
		}

	public:
		enum { mMaxBufferSize = 512 };
		char mBuff[mMaxBufferSize] = "";
		bool nChanged = false;
		std::string mValue;
		std::string mId = "id";
		bool mMultiline = false;

		RGBA mAccentColor;
		RGBA mHoveredColor;
		RGBA mBaseColor;
		halnf mRounding = 0;
		halnf mPadding = 0;
	};
}