#include "editor.hpp"

#include "project.hpp"
#include "thread_pool.hpp"
#include "game.hpp"
#include "BulletCollision/NarrowPhaseCollision/btRaycastCallback.h"
#include "math-helpers.hpp"
#include "camera.hpp"
#include "entities.hpp"
#include "game-settings.hpp"
#include "player-input.hpp"
#include "window.hpp"
#include "vendor/glm_include.hpp"
#include "vendor/tinyfiledialogs//tinyfiledialogs.h"
#include "imgui.h"

#include <filesystem>
#include <future>
#include <regex>

#ifdef WIN32
	// TODO
#else
	#include <unistd.h>
	#include <sys/wait.h>
#endif

const char* const dbgCtrl_CameraLeft = "debug-camera-left";
const char* const dbgCtrl_CameraRight = "debug-camera-right";
const char* const dbgCtrl_CameraForward = "debug-camera-forward";
const char* const dbgCtrl_CameraBack = "debug-camera-back";
const char* const dbgCtrl_CameraUp = "debug-camera-up";
const char* const dbgCtrl_CameraDown = "debug-camera-down";
const char* const dbgCtrl_CameraRotCC = "debug-camera-rot-counter-clockwise";
const char* const dbgCtrl_CameraRotC = "debug-camera-rot-clockwise";
const char* const dbgCtrl_CameraRot = "debug-camera-rot";
const char* const dbgCtrl_CameraButtonMask = "debug-camera-button-mask";
const char* const dbgCtrl_SelectHovered = "debug-select-hovered";
const char* const dbgCtrl_ClearSelection = "debug-clear-selection";

ThreadPoolHandle threadPoolHandle = ThreadPoolHandle_MAX;

PkeCamera cameraDbg {
	.pos = glm::vec3(4.f, 4.f, 4.f),
	.rot = glm::quat(1.f, 0.f, 0.f, 0.f),
	.target = glm::vec3(0.f),
	.type = PKE_CAMERA_TYPE_PERSPECTIVE,
	.orientation = PKE_CAMERA_ORIENTATION_FREE,
	.stale = PKE_CAMERA_STALE_ALL,
};

InputActionSetHandle debugControlsHandle = InputActionSetHandle_MAX;
bool shouldSetupEditor = true;
bool shouldDisableEditor = false;
bool shouldRebuildProjectDir = true;

struct EntityTypeInstanceCreateInfo {
	EntityHandle entityTypeEntityHandle;
};
DynArray<EntityTypeInstanceCreateInfo> entityInstancesToCreate{16};
EntityHandle selectedEntity = EntityHandle_MAX;
EntityHandle hoveredEntity = EntityHandle_MAX;
bool shouldCreateEntityType = false;
EntityType entityTypeToCreate{};
CameraHandle selectedCamera = CameraHandle_MAX;

char *sceneName = nullptr;
bool shouldOpenLoadSceneDialog = false;
bool shouldOpenSaveSceneDialog = false;
bool shouldLoadScene = false;
bool shouldSaveScene = false;
bool shouldSaveProjectFile = false;
bool shouldRunCurrentScene = false;
bool subProgramRunning = false;

glm::vec3 unproject(glm::vec3 windowCoords) {
		double xDevNorm = (2.0f * windowCoords.x) / Extent.width - 1.0f;
		double yDevNorm = 1.0f - (2.0f * windowCoords.y) / Extent.height;
		yDevNorm *= -1;
		glm::vec4 clipCoords(xDevNorm, yDevNorm, windowCoords.z, 1.f);

		glm::vec4 rayEye = glm::inverse(UBO.proj) * clipCoords;

		glm::vec4 worldCoords = glm::inverse(UBO.model) * glm::inverse(UBO.view) * rayEye;
		if (std::abs(0.0f - worldCoords.w) > 0.00001f) {
			worldCoords *= 1.0f / worldCoords.w;
		}

		return glm::vec3(worldCoords);
}

void PkeEditor_Tick(double delta) {
	if (shouldRunCurrentScene) {
		shouldRunCurrentScene = false;
		subProgramRunning = true;
		PkeThreads_Enqueue(threadPoolHandle, std::packaged_task<void()>( [] {
			auto pid = fork();
			if (pid == 0) {
				const char *argv[] = {
					NULL,
				};
				int status = execvp("pke_runtime", const_cast<char **>(argv));
				fprintf(stderr, "pke_runtime exited with a status of %i\n", status);
				subProgramRunning = false;
			} else {
				int status;
				waitpid(pid, &status, 0);
				fprintf(stdout, "pke_runtime exited cleanly with a status of %i\n", status);
				subProgramRunning = false;
			}
		}));
	}
	if (shouldSetupEditor) {
		PkeEditor_Setup();
	}
	if (shouldDisableEditor) {
		PkeEditor_Teardown();
	}
	if (shouldSaveProjectFile) {
		PkeProject_Save();
	}
	if (shouldOpenLoadSceneDialog) {
		shouldOpenLoadSceneDialog = false;
		PkeThreads_Enqueue(threadPoolHandle, std::packaged_task<void()>( [] {
			const char * patterns[1] = {"*.pstf"};
			char *selectedScene = tinyfd_openFileDialog(nullptr, "cafebabe.pstf", 1, patterns, "Pke Scene Text File", 0);
			if (selectedScene != nullptr) {
				sceneName = selectedScene;
				shouldLoadScene = true;
			}
		}));
	}
	if (shouldLoadScene && sceneName) {
		shouldLoadScene = false;
		Game_LoadSceneFile(sceneName);
	}

	if (shouldSaveScene && sceneName) {
		shouldSaveScene = false;
		Game_SaveSceneFile(sceneName);
	}

	if (EntitiesToBeRemoved.Has(selectedEntity)) {
		selectedEntity = EntityHandle_MAX;
	}
	if (EntitiesToBeRemoved.Has(hoveredEntity)) {
		hoveredEntity = EntityHandle_MAX;
	}

	bool imGuiHovered = ImGui::IsWindowHovered(ImGuiHoveredFlags_AnyWindow);

	if (selectedEntity != EntityHandle_MAX && !imGuiHovered) {
		auto holder = PkeInput_Query(dbgCtrl_ClearSelection);
		if (holder.type != InputEventHash{0}) {
			const PkeMouseButtonEvent *mbEvent = static_cast<PkeMouseButtonEvent *>(holder.ptr);
			if (mbEvent->isPressed) {
				selectedEntity = EntityHandle_MAX;
			}
		}
	}
	// raycast for hovering
	hoveredEntity = EntityHandle_MAX;
	if (!imGuiHovered) {
		double xMousePos, yMousePos;
		if (pkeSettings.editorSettings.isUsingDebugCamera) {
			xMousePos = Extent.width / 2.0;
			yMousePos = Extent.height / 2.0;
		} else {
			glfwGetCursorPos(window, &xMousePos, &yMousePos);
		}

		glm::vec3 fromCoords{unproject(glm::vec3(xMousePos, yMousePos, -1.f))};
		glm::vec3 toCoords{unproject(glm::vec3(xMousePos, yMousePos, 1.f))};

		btVector3 rayOrigin{};
		btVector3 rayDestination{};
		GlmToBullet(fromCoords, rayOrigin);
		GlmToBullet(toCoords, rayDestination);

		btCollisionWorld::ClosestRayResultCallback rayResult{rayOrigin, rayDestination};
		rayResult.m_flags |= btTriangleRaycastCallback::kF_FilterBackfaces;

		BtDynamicsWorld->rayTest(rayOrigin, rayDestination, rayResult);
		if (rayResult.hasHit()) {
			EntityHandle_T hoveredEntity_T{reinterpret_cast<EntityHandle_T>(rayResult.m_collisionObject->getUserPointer())};
			hoveredEntity = EntityHandle{hoveredEntity_T};
		}
	}

	if (hoveredEntity != EntityHandle_MAX) {
		auto holder = PkeInput_Query(dbgCtrl_SelectHovered);
		if (holder.type != InputEventHash{0}) {
			const PkeMouseButtonEvent *mbEvent = static_cast<PkeMouseButtonEvent *>(holder.ptr);
			if (mbEvent->isPressed) {
				selectedEntity = hoveredEntity;
			}
		}
	}

	EntityHandle focusedHandle = selectedEntity != EntityHandle_MAX ? selectedEntity : hoveredEntity;
	if (focusedHandle != EntityHandle_MAX) {
		const auto *inst = ECS_GetInstance(focusedHandle);
		const auto *grBinds = ECS_GetGrBinds(inst->grBindsHandle);
		pkeDebugHitbox.instanceBuffer = grBinds->instanceBuffer;
		pkeDebugHitbox.instanceStartingIndex = inst->index;
	} else {
		pkeDebugHitbox.instanceBuffer = VK_NULL_HANDLE;
		pkeDebugHitbox.instanceStartingIndex = 0;
	}

	if (shouldCreateEntityType) {
		assert(entityTypeToCreate.entityHandle == EntityHandle_MAX);
		// TODO this needs to be more elegant
		int64_t existingEntityTypeIndex = EntityType_FindByTypeCode(entityTypeToCreate.entityTypeCode);
		if (existingEntityTypeIndex == -1) {
			entityTypeToCreate.entityHandle = ECS_CreateEntity();
			EntityType_Load(entityTypeToCreate);
			GlobalEntityTypes.Push(entityTypeToCreate);
		}
		entityTypeToCreate = EntityType{};
		shouldCreateEntityType = false;
	}
	while (entityInstancesToCreate.Count() > 0) {
		auto createInfo = entityInstancesToCreate.Pop();
		// TODO needs to be more elegant
		int64_t etIndex = EntityType_FindByEntityHandle(createInfo.entityTypeEntityHandle);
		auto &et = GlobalEntityTypes[etIndex];
		EntityHandle newEntity = ECS_CreateEntity();
		auto &compInst = ECS_CreateInstance(newEntity, createInfo.entityTypeEntityHandle);

		compInst.physicsLayer = et.bt.startingCollisionLayer;
		compInst.physicsMask = et.bt.startingCollisionMask;
		btVector3 localInertia(0, 0, 0);
		et.bt.shape->calculateLocalInertia(et.bt.startingMass, localInertia);
		btTransform posRot{};
		posRot.setIdentity();
		compInst.bt.motionState = Pke_New<btDefaultMotionState>(MemBkt_Bullet);
		new (compInst.bt.motionState) btDefaultMotionState(posRot);
		compInst.bt.rigidBody = Pke_New<btRigidBody>(MemBkt_Bullet);
		new (compInst.bt.rigidBody) btRigidBody(et.bt.startingMass, compInst.bt.motionState, et.bt.shape, localInertia);
		compInst.bt.rigidBody->setLinearVelocity(btVector3(0,0,0));
		compInst.bt.rigidBody->setAngularVelocity(btVector3(0,0,0));
		compInst.bt.rigidBody->getCollisionShape()->setLocalScaling(btVector3(1, 1, 1));
		BtDynamicsWorld->addRigidBody(compInst.bt.rigidBody);
		compInst.bt.rigidBody->getBroadphaseProxy()->m_collisionFilterGroup = static_cast<PhysicsCollision_T>(et.bt.startingCollisionLayer);
		compInst.bt.rigidBody->getBroadphaseProxy()->m_collisionFilterMask = static_cast<PhysicsCollision_T>(et.bt.startingCollisionMask);
		compInst.bt.rigidBody->setUserPointer(reinterpret_cast<void *>(compInst.entHandle));
	}

	PkeInputEventHolder holder = PkeInput_Query(dbgCtrl_CameraButtonMask);
	if (holder.type != InputEventHash{0}) {
		PkeMouseButtonEvent *toggleCameraMovement;
		toggleCameraMovement = static_cast<PkeMouseButtonEvent *>(holder.ptr);
		if (toggleCameraMovement->thisTick) {
			if (toggleCameraMovement->isPressed && pkeSettings.editorSettings.isUsingDebugCamera == false) {
				pkeSettings.editorSettings.isUsingDebugCamera = true;
				glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_DISABLED);
				selectedCamera = CameraHandle_MAX;
				if (ActiveCamera != &cameraDbg) {
					cameraDbg.pos = ActiveCamera->pos;
					if (ActiveCamera->orientation == cameraDbg.orientation) {
						cameraDbg.rot = ActiveCamera->rot;
					} else {
						cameraDbg.rot = glm::quat(UBO.view);
					}
					cameraDbg.stale = PKE_CAMERA_STALE_ALL;
					ActiveCamera = &cameraDbg;
				}
			} else if (toggleCameraMovement->isPressed && pkeSettings.editorSettings.isUsingDebugCamera == true) {
				pkeSettings.editorSettings.isUsingDebugCamera = false;
				glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
			}
		}
	}

	if (pkeSettings.editorSettings.isUsingDebugCamera && ActiveCamera == &cameraDbg) {
		holder = PkeInput_Query(dbgCtrl_CameraRot);
		if (holder.type != InputEventHash{0}) {
			const PkeCursorPosEvent *posEvent = static_cast<PkeCursorPosEvent *>(holder.ptr);
			if (posEvent->xMotion || posEvent->yMotion) {
				glm::vec3 axis1Heading = glm::conjugate(cameraDbg.rot) * glm::vec3(1.f, 0.f, 0.f);
				glm::vec3 axis2Heading = glm::conjugate(cameraDbg.rot) * glm::vec3(0.f, 1.f, 0.f);
				glm::quat pitch = glm::angleAxis(float(posEvent->yMotion) * 0.01f, glm::normalize(axis1Heading));
				glm::quat yaw = glm::angleAxis(float(posEvent->xMotion) * 0.01f, glm::normalize(axis2Heading));
				glm::quat rot = cameraDbg.rot * pitch * yaw;
				auto eul = glm::eulerAngles(rot);
				cameraDbg.rot = glm::quat(eul);
				cameraDbg.stale = cameraDbg.stale | PKE_CAMERA_STALE_ROT;
			}
		}

		double leftCount = 0;
		double rightCount = 0;
		double forwardCount = 0;
		double backCount = 0;
		double upCount = 0;
		double downCount = 0;
		double rotCCCount = 0;
		double rotCCount = 0;

		holder = PkeInput_Query(dbgCtrl_CameraLeft);
		if (holder.type != InputEventHash{0}) {
			PkeKeyEvent *keyLeft;
			keyLeft = static_cast<PkeKeyEvent *>(holder.ptr);
			leftCount = keyLeft->isPressed ? 1 : 0;
		}

		holder = PkeInput_Query(dbgCtrl_CameraRight);
		if (holder.type != InputEventHash{0}) {
			PkeKeyEvent *keyRight;
			keyRight = static_cast<PkeKeyEvent *>(holder.ptr);
			rightCount = keyRight->isPressed ? 1 : 0;
		}

		holder = PkeInput_Query(dbgCtrl_CameraForward);
		if (holder.type != InputEventHash{0}) {
			PkeKeyEvent *keyForward;
			keyForward = static_cast<PkeKeyEvent *>(holder.ptr);
			forwardCount = keyForward->isPressed ? 1 : 0;
		}

		holder = PkeInput_Query(dbgCtrl_CameraBack);
		if (holder.type != InputEventHash{0}) {
			PkeKeyEvent *keyBack;
			keyBack = static_cast<PkeKeyEvent *>(holder.ptr);
			backCount = keyBack->isPressed ? 1 : 0;
		}

		holder = PkeInput_Query(dbgCtrl_CameraUp);
		if (holder.type != InputEventHash{0}) {
			PkeKeyEvent *keyUp;
			keyUp = static_cast<PkeKeyEvent *>(holder.ptr);
			upCount = keyUp->isPressed ? 1 : 0;
		}

		holder = PkeInput_Query(dbgCtrl_CameraDown);
		if (holder.type != InputEventHash{0}) {
			PkeKeyEvent *keyDown;
			keyDown = static_cast<PkeKeyEvent *>(holder.ptr);
			downCount = keyDown->isPressed ? 1 : 0;
		}

		holder = PkeInput_Query(dbgCtrl_CameraRotCC);
		if (holder.type != InputEventHash{0}) {
			PkeKeyEvent *keyRotCC;
			keyRotCC = static_cast<PkeKeyEvent *>(holder.ptr);
			rotCCCount = keyRotCC->isPressed ? 1 : 0;
		}

		holder = PkeInput_Query(dbgCtrl_CameraRotC);
		if (holder.type != InputEventHash{0}) {
			PkeKeyEvent *keyRotC;
			keyRotC = static_cast<PkeKeyEvent *>(holder.ptr);
			rotCCount = keyRotC->isPressed ? 1 : 0;
		}

		double accelerated = delta * 10.f;
		double axis1 = -(leftCount * accelerated) + (rightCount * accelerated);
		double axis2 = (forwardCount * accelerated) + -(backCount * accelerated);
		double axis3 = -(upCount * accelerated) + (downCount * accelerated);
		if (axis1 != 0 || axis2 != 0 || axis3 != 0) {
			glm::vec3 axis1Heading = glm::conjugate(cameraDbg.rot) * glm::vec3(-axis1, 0.f, 0.f);
			glm::vec3 axis2Heading = glm::conjugate(cameraDbg.rot) * glm::vec3(0.f, 0.f, axis2);
			glm::vec3 axis3Heading = glm::conjugate(cameraDbg.rot) * glm::vec3(0.f, axis3, 0.f);
			cameraDbg.pos += glm::vec3(axis1Heading + axis2Heading + axis3Heading);
			cameraDbg.stale = cameraDbg.stale | PKE_CAMERA_STALE_POS;
		}

		double axis4 = -(rotCCCount * delta) + (rotCCount * delta);
		if (axis4 != 0.0) {
			cameraDbg.rot = glm::quat(glm::vec3(0.f, 0.f, axis4)) * cameraDbg.rot;
			cameraDbg.stale = cameraDbg.stale | PKE_CAMERA_STALE_ROT;
		}
	}

}

void RecordImGui_GLM(const char *label, glm::mat4 &mat) {
	float min = -1;
	float max = 1;
	for (long i = 0; i < 4; ++i) {
		ImGui::PushID(i);
		ImGui::SliderFloat4(label, &mat[i][0], min, max, "%.3f", ImGuiSliderFlags_NoRoundToFormat);
		ImGui::PopID();
	}
}

void RecordImGuiEditorWrapper() {
	ImGui::DockSpaceOverViewport(nullptr, ImGuiDockNodeFlags_PassthruCentralNode);
	ImGui::BeginMainMenuBar();
	if (ImGui::BeginMenu("File")) {
		if (ImGui::MenuItem("Exit")) {
			glfwSetWindowShouldClose(window, true);
		}
		ImGui::EndMenu();
	}
	if (ImGui::BeginMenu("Debug")) {
		ImGui::Checkbox("Show Debug Hitboxes", &pkeSettings.isRenderingDebug);
		ImGui::BeginDisabled();
		ImGui::Checkbox("Pause Physics Simulation", &pkeSettings.isSimulationPaused);
		ImGui::EndDisabled();
		if (ImGui::Checkbox("Uncap Framerate", &pkeSettings.graphicsSettings.isFramerateUnlocked)) {
			shouldRecreateSwapchain = true;
		}
		if (ImGui::Checkbox("wait for v-sync", &pkeSettings.graphicsSettings.isWaitingForVsync)) {
			shouldRecreateSwapchain = true;
		}
		// ImGui::Checkbox("Uncap Tickrate", &pkeSettings.isTickrateUnlocked);
		if (ImGui::Checkbox("Use Debug Camera", &pkeSettings.editorSettings.isUsingDebugCamera)) {
			if (pkeSettings.editorSettings.isUsingDebugCamera) {
				// shouldUnlockCamera = true;
				ImGui::CloseCurrentPopup();
			} else {
				// shouldLockCamera = true;
			}
		}

    ImGuiIO &io = ImGui::GetIO();
		ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);

		ImGui::EndMenu();
	}
	ImGui::Spacing();
	ImGui::BeginDisabled(subProgramRunning);
	if (ImGui::Button("▶️")) {
		shouldRunCurrentScene = true;
	}
	ImGui::EndDisabled();
	ImGui::EndMainMenuBar();
}

void RecordImGuiEntityList() {
	if (!ImGui::Begin("EntityList", &pkeSettings.editorSettings.isShowingEntityList)) {
		ImGui::End();
		return;
	}
	static ImGuiTableFlags tableFlags{
		ImGuiTableFlags_Borders |
		ImGuiTableFlags_RowBg
	};
	if (ImGui::BeginTable("Entities", 7, tableFlags)) {
		ImGui::TableSetupColumn("Select");
		ImGui::TableSetupColumn("EntityHandle");
		ImGui::TableSetupColumn("ParentEntityHandle");
		ImGui::TableSetupColumn("GrBindsHandle");
		ImGui::TableSetupColumn("InstanceHandle");
		ImGui::TableSetupColumn("IsMarkedForRemoval");
		ImGui::TableSetupColumn("Delete");
		ImGui::TableHeadersRow();

		uint64_t bucketCount = ECS_GetEntities_BucketCount();
		for (long bucket = 0; bucket < bucketCount; ++bucket) {
			uint64_t itemCount = 0;
			auto *entities = ECS_GetEntities(bucket, itemCount);
			ImGui::PushID(bucket);
			for (long row = 0; row < itemCount; row++) {
				auto *entity = &entities[row];
				ImGui::PushID(row);
				ImGui::TableNextRow();
				ImGui::TableSetColumnIndex(0);
				ImGui::BeginDisabled(selectedEntity == entity->handle);
				if (ImGui::Button("Select"))
					selectedEntity = entity->handle;
				ImGui::EndDisabled();
				ImGui::TableSetColumnIndex(1);
				ImGui::Text("0x%016lX", static_cast<EntityHandle_T>(entity->handle));
				ImGui::TableSetColumnIndex(2);
				ImGui::Text("0x%016lX", static_cast<EntityHandle_T>(entity->parentHandle));
				ImGui::TableSetColumnIndex(3);
				ImGui::Text("0x%016lX", static_cast<GrBindsHandle_T>(entity->grBindsHandle));
				ImGui::TableSetColumnIndex(4);
				ImGui::Text("0x%016lX", static_cast<InstanceHandle_T>(entity->instanceHandle));
				ImGui::TableSetColumnIndex(5);
				ImGui::Text("%u", entity->isMarkedForRemoval);
				ImGui::TableSetColumnIndex(6);
				ImGui::BeginDisabled(selectedEntity != entity->handle);
				if (ImGui::Button("Delete"))
					ECS_MarkForRemoval(entity->handle);
				ImGui::EndDisabled();
				ImGui::PopID();
			}
			ImGui::PopID();
		}
		ImGui::EndTable();
	}
	ImGui::End();
}

void RecordImGuiCameras() {
	if (!ImGui::Begin("Cameras")) {
		ImGui::End();
		return;
	}
	if (ImGui::Button("Create")) {
		auto &cam = PkeCamera_Register();
		cam.pos = ActiveCamera->pos;
		cam.rot = ActiveCamera->rot;
		cam.target = ActiveCamera->target;
		cam.type = ActiveCamera->type;
		cam.orientation = ActiveCamera->orientation;
	}

	static ImGuiTableFlags tableFlags{
		ImGuiTableFlags_Borders |
		ImGuiTableFlags_RowBg
	};
	if (ImGui::BeginTable("Entities", 8, tableFlags)) {
		ImGui::TableSetupColumn("Interact");
		ImGui::TableSetupColumn("CameraHandle");
		ImGui::TableSetupColumn("Pos");
		ImGui::TableSetupColumn("Rot");
		ImGui::TableSetupColumn("Target");
		ImGui::TableSetupColumn("Type");
		ImGui::TableSetupColumn("Orientation");
		ImGui::TableSetupColumn("Stale");
		ImGui::TableHeadersRow();

		int64_t cameraBucketCount = PkeCamera_GetBucketCount();
		for (long b = 0; b < cameraBucketCount; ++b) {
			int64_t count;
			auto *cameras = PkeCamera_GetCameras(b, count);
			ImGui::PushID(b);
			for (long i = 0; i < count; ++i) {
				const auto &cam = cameras[i];
				if (cam.handle == CameraHandle_MAX)
					continue;
				ImGui::PushID(i);
				ImGui::TableNextRow();
				ImGui::TableSetColumnIndex(0);
				ImGui::BeginDisabled(selectedCamera == cam.handle);
				if (ImGui::Button("Select")) {
					selectedCamera = cam.handle;
					ActiveCamera = const_cast<PkeCamera *>(&cam);
					ActiveCamera->stale = PKE_CAMERA_STALE_ALL;
				}
				ImGui::EndDisabled();
				ImGui::TableSetColumnIndex(1);
				ImGui::Text("0x%016lX", static_cast<CameraHandle_T>(cam.handle));
				ImGui::TableSetColumnIndex(2);
				ImGui::Text("%4.2f,%4.2f,%4.2f", cam.pos[0], cam.pos[1], cam.pos[2]);
				ImGui::TableSetColumnIndex(3);
				ImGui::Text("%4.2f,%4.2f,%4.2f,%4.2f", cam.rot[0], cam.rot[1], cam.rot[2], cam.rot[3]);
				ImGui::TableSetColumnIndex(4);
				ImGui::Text("%4.2f,%4.2f,%4.2f", cam.target[0], cam.target[1], cam.target[2]);
				ImGui::TableSetColumnIndex(5);
				ImGui::Text("%hhu", cam.type);
				ImGui::TableSetColumnIndex(6);
				ImGui::Text("%hhu", cam.orientation);
				ImGui::TableSetColumnIndex(7);
				ImGui::Text("%hhu", cam.stale);
				ImGui::PopID();
			}
			ImGui::PopID();
		}
		ImGui::EndTable();
	}

	if (selectedCamera != CameraHandle_MAX) {
		int inputTextFlags = ImGuiInputTextFlags_ReadOnly;
		auto *cam = PkeCamera_Get(selectedCamera);
		if (cam) {
			bool isOrientTarget{bool(static_cast<PkeCameraOrientation_T>(cam->orientation & PKE_CAMERA_ORIENTATION_TARGET))};
			bool isOrientFree{bool(static_cast<PkeCameraOrientation_T>(cam->orientation & PKE_CAMERA_ORIENTATION_FREE))};
			if (ImGui::InputScalarN("Pos", ImGuiDataType_Float, &cam->pos, 3, nullptr, nullptr, nullptr))
				cam->stale = cam->stale | PKE_CAMERA_STALE_POS;
			if (ImGui::InputScalarN("Rot", ImGuiDataType_Float, &cam->rot, 4, nullptr, nullptr, nullptr, isOrientFree ? 0 : inputTextFlags))
				cam->stale = cam->stale | PKE_CAMERA_STALE_ROT;
			if (ImGui::InputScalarN("Target", ImGuiDataType_Float, &cam->target, 3, nullptr, nullptr, nullptr, isOrientTarget ? 0 : inputTextFlags))
				cam->stale = cam->stale | PKE_CAMERA_STALE_ROT;

			bool isPerspective{bool(static_cast<PkeCameraType_T>(cam->type & PKE_CAMERA_TYPE_PERSPECTIVE))};
			bool isOrthogonal{bool(static_cast<PkeCameraType_T>(cam->type & PKE_CAMERA_TYPE_ORTHOGONAL))};
			ImGui::BeginDisabled(isPerspective);
			if (ImGui::Button("Perspective")) {
				cam->type = PKE_CAMERA_TYPE_PERSPECTIVE;
			}
			ImGui::EndDisabled();
			ImGui::SameLine();
			ImGui::BeginDisabled(isOrthogonal);
			if (ImGui::Button("Orthogonal")) {
				cam->type = PKE_CAMERA_TYPE_ORTHOGONAL;
			}
			ImGui::EndDisabled();

			ImGui::BeginDisabled(isOrientTarget);
			if (ImGui::Button("Target")) {
				cam->orientation = PKE_CAMERA_ORIENTATION_TARGET;
			}
			ImGui::EndDisabled();
			ImGui::SameLine();
			ImGui::BeginDisabled(isOrientFree);
			if (ImGui::Button("Free")) {
				cam->orientation = PKE_CAMERA_ORIENTATION_FREE;
			}
			ImGui::EndDisabled();

		}
	}

	ImGui::End();
}

void RecordImGuiUBO() {
	if (!ImGui::Begin("UBO", &pkeSettings.editorSettings.isShowingUBO)) {
		ImGui::End();
		return;
	}
	ImGui::Text("Model");
	RecordImGui_GLM("UBO-model", UBO.model);
	ImGui::Text("View");
	RecordImGui_GLM("UBO-view", UBO.view);
	ImGui::Text("Proj");
	RecordImGui_GLM("UBO-proj", UBO.proj);
	ImGui::End();
}

void RecordImGuiModalCreateEntityType() {
	if (ImGui::BeginPopupModal("CreateEntityType", nullptr, ImGuiWindowFlags_AlwaysAutoResize)) {
		static char modelsDir[64];
		static char modelFile[64];
		static char entityTypeCode[32];

		ImGui::InputText("Models Dir", modelsDir, 63);
		ImGui::InputText("Model File", modelFile, 63);
		ImGui::InputText("Entity Type Code", entityTypeCode, 31);
		ImGui::InputScalar("Starting Instance Count", ImGuiDataType_U32, &entityTypeToCreate.startingInstanceCount);
		ImGui::InputScalar("GLTF Import Index - Vertex", ImGuiDataType_S16, &entityTypeToCreate.Importer_GLTF.AccessorIndexVertex);
		ImGui::InputScalar("GLTF Import Index - Normal", ImGuiDataType_S16, &entityTypeToCreate.Importer_GLTF.AccessorIndexNormal);
		ImGui::InputScalar("GLTF Import Index - UV", ImGuiDataType_S16, &entityTypeToCreate.Importer_GLTF.AccessorIndexUV);
		ImGui::InputScalar("GLTF Import Index - Index", ImGuiDataType_S16, &entityTypeToCreate.Importer_GLTF.AccessorIndexIndex);
		ImGui::InputFloat("Physics - Mass", &entityTypeToCreate.bt.startingMass);
		ImGui::InputScalar("Physics - Collision Layer", ImGuiDataType_U16, &entityTypeToCreate.bt.startingCollisionLayer);
		ImGui::InputScalar("Physics - Collision Mask", ImGuiDataType_U16, &entityTypeToCreate.bt.startingCollisionMask);

		ImGui::Separator();

		if (ImGui::Button("Create")) {
			// TODO some type of validation
			memset(modelsDir, '\0', 64);
			memset(modelFile, '\0', 64);
			memset(entityTypeCode, '\0', 32);
			// assert(entityTypeToCreate == nullptr || entityTypeToCreate == CAFE_BABE(EntityType));
			// entityTypeToCreate = Pke_New<EntityType>();

			char *sModelsDir = Pke_New<char>(strlen(modelsDir) + 1);
			strncpy(sModelsDir, modelsDir, 63);
			entityTypeToCreate.modelsDir = sModelsDir;

			char *sModelFile = Pke_New<char>(strlen(modelFile) + 1);
			strncpy(sModelFile, modelFile, 63);
			entityTypeToCreate.modelFile = sModelFile;

			char *sEntityTypeCode = Pke_New<char>(strlen(entityTypeCode) + 1);
			strncpy(sEntityTypeCode, entityTypeCode, 31);
			entityTypeToCreate.entityTypeCode = sEntityTypeCode;

			shouldCreateEntityType = true;
			ImGui::CloseCurrentPopup();
		}
		ImGui::SameLine();
		if (ImGui::Button("Cancel")) {
			ImGui::CloseCurrentPopup();
		}

		ImGui::EndPopup();
	}
}

void RecordImGui_CompGrBinds(bool readonly, CompGrBinds *component) {
	if (component == nullptr) return;
	int inputTextFlags = 0;
	if (readonly)
		inputTextFlags |= ImGuiInputTextFlags_ReadOnly;

	ImGui::Text("CompGRBinds");
	ImGui::Separator();

	if (ImGui::Button("Create Instance")) {
		entityInstancesToCreate.Push({
			.entityTypeEntityHandle = component->entHandle,
		});
	}

	if (component->vkPipelineLayout)
		ImGui::InputScalar("VkPipelineLayout", ImGuiDataType_U64, &component->vkPipelineLayout, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);
	if (component->vkDescriptorSets){
		ImGui::InputScalarN("VkPipelineDescriptorSets", ImGuiDataType_U64, &component->vkDescriptorSets, MAX_FRAMES_IN_FLIGHT, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);
	}

	if (component->vertexBuffer)
		ImGui::InputScalar("VkVertexBuffer", ImGuiDataType_U64, &component->vertexBuffer, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);
	ImGui::InputScalar("VertexFirstBinding", ImGuiDataType_U32, &component->vertexFirstBinding, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("VertexBindingCount", ImGuiDataType_U32, &component->vertexBindingCount, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("VertexOffsets", ImGuiDataType_U64, &component->vertexOffsets, nullptr, nullptr, nullptr, inputTextFlags);

	if (component->normalsBuffer)
		ImGui::InputScalar("VkNormalBuffer", ImGuiDataType_U64, &component->normalsBuffer, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);
	ImGui::InputScalar("NormalFirstBinding", ImGuiDataType_U32, &component->normalsFirstBinding, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("NormalBindingCount", ImGuiDataType_U32, &component->normalsBindingCount, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("NormalOffsets", ImGuiDataType_U64, &component->normalsOffsets, nullptr, nullptr, nullptr, inputTextFlags);

	if (component->uvBuffer)
		ImGui::InputScalar("VkUVBuffer", ImGuiDataType_U64, &component->uvBuffer, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);
	ImGui::InputScalar("UVFirstBinding", ImGuiDataType_U32, &component->uvFirstBinding, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("UVBindingCount", ImGuiDataType_U32, &component->uvBindingCount, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("UVOffsets", ImGuiDataType_U64, &component->uvOffsets, nullptr, nullptr, nullptr, inputTextFlags);

	if (component->indexBuffer)
		ImGui::InputScalar("VkIndexBuffer", ImGuiDataType_U64, &component->indexBuffer, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);
	ImGui::InputScalar("IndexBindingCount", ImGuiDataType_U32, &component->indexBindingCount, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("IndexOffsets", ImGuiDataType_U64, &component->indexOffsets, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("IndexCount", ImGuiDataType_U32, &component->indexCount, nullptr, nullptr, nullptr, inputTextFlags);

	if (component->instanceBuffer)
		ImGui::InputScalar("VkInstanceBuffer", ImGuiDataType_U64, &component->instanceBuffer, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);
	ImGui::InputScalar("InstanceFirstBinding", ImGuiDataType_U32, &component->instanceFirstBinding, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("InstanceBindingCount", ImGuiDataType_U32, &component->instanceBindingCount, nullptr, nullptr, nullptr, inputTextFlags);
	ImGui::InputScalar("InstanceOffsets", ImGuiDataType_U64, &component->instanceOffsets, nullptr, nullptr, nullptr, inputTextFlags);

	ImGui::InputScalar("InstanceBufferMaxCount", ImGuiDataType_U32, &component->instanceBufferMaxCount, nullptr, nullptr, nullptr, ImGuiInputTextFlags_ReadOnly);
	ImGui::InputScalar("Instance Count", ImGuiDataType_U32, &component->instanceCounter, nullptr, nullptr, nullptr, ImGuiInputTextFlags_ReadOnly);

	ImGui::Spacing();
}

void RecordImGui_CompInstPos(bool readonly, CompInstance *component) {
	if (component == nullptr) return;
	int inputTextFlags = 0;
	if (readonly)
		inputTextFlags |= ImGuiInputTextFlags_ReadOnly;

	ImGui::Text("CompInststance + InstPos");
	ImGui::Separator();

	bool changed = false;
	InstPos instPos;
	component->bt.motionState->getWorldTransform(instPos.posRot);
	instPos.scale = component->bt.rigidBody->getCollisionShape()->getLocalScaling();
	instPos.mass = component->bt.rigidBody->getMass();

	btVector3 pos = instPos.posRot.getOrigin();
	btQuaternion rot = instPos.posRot.getRotation();
	glm::vec3 eul;
	rot.getEulerZYX(eul.z, eul.y, eul.x);
	eul = glm::degrees(eul);

	changed = ImGui::InputScalar("Instance Index", ImGuiDataType_U64, &component->index, nullptr, nullptr, nullptr, ImGuiInputTextFlags_ReadOnly) || changed;
	changed = ImGui::InputScalarN("pos", ImGuiDataType_Float, &pos, 3, nullptr, nullptr, nullptr, inputTextFlags) || changed;
	changed = ImGui::InputScalarN("rot (eul)", ImGuiDataType_Float, &eul, 3, nullptr, nullptr, nullptr, inputTextFlags) || changed;
	changed = ImGui::InputScalarN("scale", ImGuiDataType_Float, &instPos.scale, 3, nullptr, nullptr, nullptr, inputTextFlags) || changed;
	changed = ImGui::InputFloat("mass", &instPos.mass, 0.0, 0.0, "%.3f", inputTextFlags) || changed;

	changed = ImGui::InputScalar("Phys - Collision Layer", ImGuiDataType_U16, &component->physicsLayer, nullptr, nullptr, nullptr, inputTextFlags) || changed;
	changed = ImGui::InputScalar("Phys - Collision Mask", ImGuiDataType_U16, &component->physicsMask, nullptr, nullptr, nullptr, inputTextFlags) || changed;

	ImGui::InputScalar("Phys - Rigid Body", ImGuiDataType_U64, &component->bt.rigidBody, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);
	ImGui::InputScalar("Phys - Motion State", ImGuiDataType_U64, &component->bt.motionState, nullptr, nullptr, "0x%016lX", ImGuiInputTextFlags_ReadOnly);

	if (changed) {
		instPos.posRot.setOrigin(pos);
		eul = glm::radians(eul);
		rot.setEulerZYX(eul.z, eul.y, eul.x);
		instPos.posRot.setRotation(rot);
		auto *broadphase = component->bt.rigidBody->getBroadphaseProxy();
		broadphase->m_collisionFilterGroup = static_cast<PhysicsCollision_T>(component->physicsLayer);
		broadphase->m_collisionFilterMask = static_cast<PhysicsCollision_T>(component->physicsMask);
		ECS_UpdateInstance(component->entHandle, instPos, true);
	}

	ImGui::Spacing();
}

void RecordImGuiProjectSettingsEditor() {
	if (!ImGui::Begin("ProjectSettings")) {
		ImGui::End();
		return;
	}

	if (ImGui::Button("Save")) {
		shouldSaveProjectFile = true;
	}

	ImGui::End();
}

struct fsEntry {
	int type = 0;
	char *name = nullptr;
	char *path = nullptr;
	DynArray<fsEntry> children{0, nullptr};
};
DynArray<fsEntry> fsEntries{0, nullptr};
std::regex reg_sceneFile(".+\\.ps[tb]f$", std::regex_constants::icase);
void BuildDirRecursive(const std::filesystem::directory_entry &de, fsEntry *dirFsEntry) {
	auto &entry = dirFsEntry == nullptr ? fsEntries.Push() : dirFsEntry->children.Push();
	auto len = strlen(de.path().c_str()) + 1;
	entry.path = Pke_New<char>(len);
	memset(entry.path, '\0', len);
	memcpy(entry.path, de.path().c_str(), len - 1);
	len = strlen(de.path().filename().c_str());
	entry.name = Pke_New<char>(len);
	memset(entry.name, '\0', len);
	memcpy(entry.name, de.path().filename().c_str(), len - 1);

	if (de.is_regular_file()) {
		if (std::regex_search(de.path().c_str(), reg_sceneFile)) {
			entry.type = 1;
		}
	} else if (de.is_directory()) {
		entry.type = 0;
		std::filesystem::directory_iterator di{de.path()};
		for (const std::filesystem::directory_entry &sde : di) {
			if (sde.is_directory()
					|| (sde.is_regular_file() && std::regex_search(sde.path().c_str(), reg_sceneFile))
			) {
				BuildDirRecursive(sde, &entry);
			}
		}
	}
}
void BuildProjectMenuRecursive(fsEntry &entry) {
	if (entry.type == 1) {
		if (ImGui::Selectable(entry.name, false, ImGuiSelectableFlags_AllowDoubleClick)) {
			sceneName = entry.name;
			shouldLoadScene = true;
		}
	} else if (entry.type == 0) {
		if (ImGui::TreeNode(entry.name)) {
			for (long i = 0; i < entry.children.Count(); ++i) {
				BuildProjectMenuRecursive(entry.children[i]);
			}
			ImGui::TreePop();
		}
	}
}
void RecordImGuiProjectBrowser() {
	if (!ImGui::Begin("ProjectBrowser")) {
		ImGui::End();
		return;
	}
	if (shouldRebuildProjectDir == true) {
		shouldRebuildProjectDir = false;
		std::filesystem::directory_iterator di{"."};
		for (const std::filesystem::directory_entry &sde : di) {
			if (sde.is_directory()
				|| (sde.is_regular_file() && std::regex_search(sde.path().c_str(), reg_sceneFile))
			) {
				BuildDirRecursive(sde, nullptr);
			}
		}
	}
	for (long i = 0; i < fsEntries.Count(); ++i) {
		BuildProjectMenuRecursive(fsEntries[i]);
	}
	ImGui::End();
}

void RecordImGuiSceneEditor() {
	if (!ImGui::Begin("SceneEditorEntityTypes", &pkeSettings.editorSettings.isShowingSceneEditor)) {
		ImGui::End();
		return;
	}
	if (ImGui::Button("Create Entity Type")) {
		ImGui::OpenPopup("CreateEntityType");
	}
	if (ImGui::Button("Save")) {
		shouldSaveScene = true;
	}
	if (sceneName) {
		ImGui::SameLine();
		ImGui::Text("%s", sceneName);
	}
	if (ImGui::Button("Save As...")) {
		shouldOpenSaveSceneDialog = true;
	}
	if (ImGui::Button("Load")) {
		shouldOpenLoadSceneDialog = true;
	}
	if (ImGui::Button("Clear Selection")) {
		selectedEntity = EntityHandle_MAX;
	}

	ImGui::Spacing();

	if (selectedEntity != EntityHandle_MAX) {
		RecordImGui_CompGrBinds(true, ECS_GetGrBinds(selectedEntity));
		RecordImGui_CompInstPos(false, ECS_GetInstance(selectedEntity));
	}

	RecordImGuiModalCreateEntityType();

	ImGui::End();
}

void PkeEditor_RecordImGui() {
	if (pkeSettings.isShowingEditor) {
		RecordImGuiEditorWrapper();
		RecordImGuiProjectSettingsEditor();
		RecordImGuiProjectBrowser();
		RecordImGuiEntityList();
		RecordImGuiSceneEditor();
		RecordImGuiUBO();
		RecordImGuiCameras();
		Game_RecordImGui();
	}
}

void PkeEditor_Setup() {
	shouldSetupEditor = false;
	PkeInput_ActivateSet(debugControlsHandle);
}

void PkeEditor_Disable() {
	shouldDisableEditor = false;
	PkeInput_DeactivateSet(debugControlsHandle);
}

void PkeEditor_Teardown() {
	PkeEditor_Disable();
	PkeThreads_Teardown(threadPoolHandle);
	entityInstancesToCreate.~DynArray();
}

void PkeEditor_Init() {
	PkeInputSet debugControlsSet;
	debugControlsSet.title = "debug-editor-controls";
	debugControlsSet.actionCount = 12;
	debugControlsSet.actions = Pke_New<PkeInputAction>(debugControlsSet.actionCount);

	debugControlsSet.actions[0].name = dbgCtrl_CameraLeft;
	debugControlsSet.actions[0].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_KEY_EVENTS,
		.button = GLFW_KEY_A,
	};
	debugControlsSet.actions[1].name = dbgCtrl_CameraRight;
	debugControlsSet.actions[1].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_KEY_EVENTS,
		.button = GLFW_KEY_D,
	};
	debugControlsSet.actions[2].name = dbgCtrl_CameraForward;
	debugControlsSet.actions[2].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_KEY_EVENTS,
		.button = GLFW_KEY_W,
	};
	debugControlsSet.actions[3].name = dbgCtrl_CameraBack;
	debugControlsSet.actions[3].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_KEY_EVENTS,
		.button = GLFW_KEY_S,
	};
	debugControlsSet.actions[4].name = dbgCtrl_CameraUp;
	debugControlsSet.actions[4].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_KEY_EVENTS,
		.button = GLFW_KEY_R,
	};
	debugControlsSet.actions[5].name = dbgCtrl_CameraDown;
	debugControlsSet.actions[5].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_KEY_EVENTS,
		.button = GLFW_KEY_F,
	};
	debugControlsSet.actions[6].name = dbgCtrl_CameraRotCC;
	debugControlsSet.actions[6].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_KEY_EVENTS,
		.button = GLFW_KEY_Q,
	};
	debugControlsSet.actions[7].name = dbgCtrl_CameraRotC;
	debugControlsSet.actions[7].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_KEY_EVENTS,
		.button = GLFW_KEY_E,
	};
	debugControlsSet.actions[8].name = dbgCtrl_CameraRot;
	debugControlsSet.actions[8].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_CURSOR_POS_EVENTS,
	};
	debugControlsSet.actions[9].name = dbgCtrl_CameraButtonMask;
	debugControlsSet.actions[9].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_MOUSE_BUTTON_EVENTS,
		.button = GLFW_MOUSE_BUTTON_MIDDLE,
	};
	debugControlsSet.actions[10].name = dbgCtrl_SelectHovered;
	debugControlsSet.actions[10].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_MOUSE_BUTTON_EVENTS,
		.button = GLFW_MOUSE_BUTTON_LEFT,
	};
	debugControlsSet.actions[11].name = dbgCtrl_ClearSelection;
	debugControlsSet.actions[11].primaryHash = PkeInputEventMask {
		.computedHash = PKE_INPUT_HASH_ALL_MOUSE_BUTTON_EVENTS,
		.button = GLFW_MOUSE_BUTTON_RIGHT,
	};

	debugControlsHandle = PkeInput_RegisterSet(debugControlsSet);

	NullCamera.pos = glm::vec3(-40.f, -40.f, -40.f),
	NullCamera.rot = glm::quat(1.f, 0.f, 0.f, 0.f),
	NullCamera.target = glm::vec3(0.f),
	NullCamera.type = PKE_CAMERA_TYPE_PERSPECTIVE,
	NullCamera.orientation = PKE_CAMERA_ORIENTATION_TARGET,
	NullCamera.stale = PKE_CAMERA_STALE_ALL,

	threadPoolHandle = PkeThreads_Init(1, 1);
}