#include "Location.h"
#include "utils/Utils.h"
#include "render/OpenGlExtensions.h"
#include <iostream>
#include "render/TextureManager.h"
#include "TextModel.h"
#include <random>
#include <cmath>
#include <algorithm>
#include <functional>
#include <memory>
#include <cfloat>
#include "GameConstants.h"
#include "Character.h"


namespace ZL
{
	extern const char* CONST_ZIP_FILE;

	static constexpr float CAMERA_FOV_Y = 1.0f / 1.5f;

	Location::Location(Renderer& iRenderer, Inventory& iInventory)
		: renderer(iRenderer)
		, inventory(iInventory)
	{

	}

	void Location::setup()
	{
		roomTexture = std::make_unique<Texture>(CreateTextureDataFromPng("resources/w/room005.png", CONST_ZIP_FILE));
		roomMesh.data = LoadFromTextFile02("resources/w/room001.txt", CONST_ZIP_FILE);
		roomMesh.data.RotateByMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(-M_PI * 0.5, Eigen::Vector3f::UnitY())).toRotationMatrix());
		roomMesh.RefreshVBO();

		// Load static game objects
		gameObjects = GameObjectLoader::loadAndCreateGameObjects("resources/config2/gameobjects.json", renderer, CONST_ZIP_FILE);

		// Load interactive objects
		interactiveObjects = GameObjectLoader::loadAndCreateInteractiveObjects("resources/config2/gameobjects.json", renderer, CONST_ZIP_FILE);


		//auto playerTexture = std::make_shared<Texture>(CreateTextureDataFromPng("resources/w/gg/IMG_20260413_182354_992.png", CONST_ZIP_FILE));
		auto playerTexture = std::make_shared<Texture>(CreateTextureDataFromPng("resources/w/gg/UniV_Grid_2K_Base_color.png", CONST_ZIP_FILE));

		player = std::make_unique<Character>();
		/*
		player->loadBinaryAnimation(AnimationState::STAND, "resources/w/gg/gg_stand_idle001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::WALK, "resources/w/gg/gg_walking001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::STAND_TO_ACTION, "resources/w/gg/gg_stand_to_action002.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_ATTACK, "resources/w/gg/gg_action_attack001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_IDLE, "resources/w/gg/gg_action_idle001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_TO_STAND, "resources/w/gg/gg_action_to_stand001.anim", CONST_ZIP_FILE);
		*/


		player->loadBinaryAnimation(AnimationState::STAND, "resources/w/gg/new/gg_stand_idle001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::WALK, "resources/w/gg/new/gg_walk001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::STAND_TO_ACTION, "resources/w/gg/new/gg_stand_to_action001.anim", CONST_ZIP_FILE);
		
		player->loadBinaryAnimation(AnimationState::ACTION_ATTACK, "resources/w/gg/gg_action_chop001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_ATTACK_2, "resources/w/gg/gg_action_stab001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_IDLE, "resources/w/gg/gg_action_idle002.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_TO_STAND, "resources/w/gg/new/gg_action_to_stand001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::ACTION_TO_DEATH, "resources/w/gg/new/gg_die001.anim", CONST_ZIP_FILE);
		player->loadBinaryAnimation(AnimationState::DEATH_IDLE, "resources/w/gg/new/gg_die_idle001.anim", CONST_ZIP_FILE);



		player->weaponTexture = std::make_shared<Texture>(CreateTextureDataFromPng("resources/w/white.png", CONST_ZIP_FILE));
		//player->weaponMesh.AssignFrom(LoadFromTextFile02("resources/w/gg/knife001.txt", CONST_ZIP_FILE));

		player->weaponMesh.data = LoadFromTextFile02("resources/w/gg/knife002.txt", CONST_ZIP_FILE);
		player->weaponMesh.data.Scale(0.1f);
		//player->weaponMesh.data.RotateByMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(-M_PI * 0.5, Eigen::Vector3f::UnitY())).toRotationMatrix());
		player->weaponMesh.RefreshVBO();
		player->weaponAttachBoneName = "RightHand";
		player->weaponInitialRotation = Eigen::AngleAxisf(-M_PI * 0.5, Eigen::Vector3f::UnitZ()).toRotationMatrix();
		player->weaponInitialPosition = Eigen::Vector3f(0, 0.09, 0.016);

		player->setTexture(playerTexture);
		player->walkSpeed = 3.0f;
		player->rotationSpeed = 8.0f;

		player->modelScale = 1.f;
		player->modelCorrectionRotation = Eigen::Quaternionf(
			Eigen::AngleAxisf(M_PI, Eigen::Vector3f::UnitY())
			*
			Eigen::AngleAxisf(-M_PI*0.5, Eigen::Vector3f::UnitX())
		
		);

		player->canAttack = true;
		player->isPlayer = true;
		std::cout << "Load resurces step 9" << std::endl;

		// Load NPCs from JSON
		npcs = GameObjectLoader::loadAndCreate_Npcs("resources/config2/npcs.json", CONST_ZIP_FILE);

		auto ghostTexture = std::make_shared<Texture>(CreateTextureDataFromPng("resources/w/ghost_skin001.png", CONST_ZIP_FILE));

		std::cout << "Load resurces step 11" << std::endl;
		auto npc02 = std::make_unique<Character>();

		npc02->loadBinaryAnimation(AnimationState::STAND, "resources/w/default_float001.anim", CONST_ZIP_FILE);
		npc02->loadBinaryAnimation(AnimationState::WALK, "resources/w/default_float001.anim", CONST_ZIP_FILE);
		npc02->loadBinaryAnimation(AnimationState::ACTION_IDLE, "resources/w/float_attack003_cut.anim", CONST_ZIP_FILE);
		npc02->loadBinaryAnimation(AnimationState::ACTION_ATTACK, "resources/w/float_attack003.anim", CONST_ZIP_FILE);
		npc02->loadBinaryAnimation(AnimationState::STAND_TO_ACTION, "resources/w/default_float001_cut.anim", CONST_ZIP_FILE);
		npc02->loadBinaryAnimation(AnimationState::ACTION_TO_STAND, "resources/w/default_float001_cut.anim", CONST_ZIP_FILE);
		npc02->loadBinaryAnimation(AnimationState::ACTION_TO_DEATH, "resources/w/default_float001_cut.anim", CONST_ZIP_FILE);
		npc02->loadBinaryAnimation(AnimationState::DEATH_IDLE, "resources/w/default_float001_cut.anim", CONST_ZIP_FILE);

		npc02->npcId = "ghost_01x";
		npc02->setTexture(ghostTexture);
		npc02->walkSpeed = 1.5f;
		npc02->rotationSpeed = 8.0f;
		npc02->modelScale = 0.01f;
		npc02->hp = 30;
		//npc02->modelScale = 0.1f;
		npc02->modelCorrectionRotation = Eigen::Quaternionf(Eigen::AngleAxisf(M_PI, Eigen::Vector3f::UnitY()));

		npc02->position = Eigen::Vector3f(0.f, 0.f, -20.f);
		npc02->setTarget(npc02->position);
		npc02->canAttack = true;
		npc02->attackTarget = player.get();

		npcs.push_back(std::move(npc02));

		// Create shadow map (2048x2048, ortho size 40, near 0.1, far 100)
		shadowMap = std::make_unique<ShadowMap>(2048, 40.0f, 0.1f, 100.0f);
		shadowMap->setLightDirection(Eigen::Vector3f(-0.5f, -1.0f, -0.3f));
		std::cout << "Shadow map initialized" << std::endl;


		setupNavigation();

		scriptEngine.init(this, &inventory);

		dialogueSystem.init(renderer, CONST_ZIP_FILE);
		dialogueSystem.loadDatabase("resources/dialogue/sample_dialogues.json");
		/*dialogueSystem.addTriggerZone({
			"ghost_room_trigger",
			"test_line_dialogue",
			Eigen::Vector3f(0.0f, 0.0f, -8.5f),
			2.0f,
			true,
			false
		});*/


	}

	void Location::setupNavigation()
	{
		std::vector<PathFinder::ObstacleMesh> obstacles;
		obstacles.reserve(gameObjects.size() + interactiveObjects.size());

		for (const auto& item : gameObjects) {
			const LoadedGameObject& gameObj = item.second;
			obstacles.push_back({ &gameObj.mesh.data, Eigen::Vector3f::Zero() });
		}

		for (const InteractiveObject& intObj : interactiveObjects) {
			if (!intObj.isActive) {
				continue;
			}
			obstacles.push_back({ &intObj.mesh.data, intObj.position });
		}

		navigation.build(obstacles, "resources/config2/navigation.json", CONST_ZIP_FILE);

#ifdef SHOW_PATH
		buildDebugNavMeshes();
#endif

		auto planner = [this](const Eigen::Vector3f& start, const Eigen::Vector3f& end) {
			return navigation.findPath(start, end);
			};

		if (player) {
			player->setPathPlanner(planner);
		}

		for (auto& npc : npcs) {
			if (npc) {
				npc->setPathPlanner(planner);
			}
		}
	}

#ifdef SHOW_PATH
	void Location::buildDebugNavMeshes()
	{
		debugNavMeshes.clear();
		const auto& areas = navigation.getAreas();
		float y = navigation.getFloorY() + 0.02f;
		Eigen::Vector3f red(1.0f, 0.0f, 0.0f);

		for (const auto& area : areas) {
			if (area.polygon.size() < 3) continue;
			VertexRenderStruct mesh;
			mesh.data = CreatePolygonFloor(area.polygon, y, red);
			mesh.RefreshVBO();
			debugNavMeshes.push_back(std::move(mesh));
		}
	}

	void Location::drawDebugNavigation()
	{
		renderer.shaderManager.PushShader("defaultColor");
		renderer.SetMatrix();
		for (const auto& mesh : debugNavMeshes) {
			renderer.DrawVertexRenderStruct(mesh);
		}
		renderer.shaderManager.PopShader();
		renderer.SetMatrix();
	}
#endif


	InteractiveObject* Location::raycastInteractiveObjects(const Eigen::Vector3f& rayOrigin, const Eigen::Vector3f& rayDir) {
		if (interactiveObjects.empty()) {
			std::cout << "[RAYCAST] No interactive objects to check" << std::endl;
			return nullptr;
		}

		std::cout << "[RAYCAST] Starting raycast with " << interactiveObjects.size() << " objects" << std::endl;
		std::cout << "[RAYCAST] Ray origin: (" << rayOrigin.x() << ", " << rayOrigin.y() << ", " << rayOrigin.z() << ")" << std::endl;
		std::cout << "[RAYCAST] Ray dir: (" << rayDir.x() << ", " << rayDir.y() << ", " << rayDir.z() << ")" << std::endl;

		float closestDistance = FLT_MAX;
		InteractiveObject* closestObject = nullptr;

		for (auto& intObj : interactiveObjects) {
			std::cout << "[RAYCAST] Checking object: " << intObj.name << " (active: " << intObj.isActive << ")" << std::endl;

			if (!intObj.isActive) {
				std::cout << "[RAYCAST]   -> Object inactive, skipping" << std::endl;
				continue;
			}

			std::cout << "[RAYCAST]   Position: (" << intObj.position.x() << ", " << intObj.position.y() << ", "
				<< intObj.position.z() << "), Radius: " << intObj.interactionRadius << std::endl;

			Eigen::Vector3f toObject = intObj.position - rayOrigin;
			std::cout << "[RAYCAST]   Vector to object: (" << toObject.x() << ", " << toObject.y() << ", " << toObject.z() << ")" << std::endl;

			float distanceAlongRay = toObject.dot(rayDir);
			std::cout << "[RAYCAST]   Distance along ray: " << distanceAlongRay << std::endl;

			if (distanceAlongRay < 0.1f) {
				std::cout << "[RAYCAST]   -> Object behind camera, skipping" << std::endl;
				continue;
			}

			Eigen::Vector3f closestPointOnRay = rayOrigin + rayDir * distanceAlongRay;
			float distToObject = (closestPointOnRay - intObj.position).norm();

			std::cout << "[RAYCAST]   Distance to object: " << distToObject
				<< " (interaction radius: " << intObj.interactionRadius << ")" << std::endl;

			if (distToObject <= intObj.interactionRadius && distanceAlongRay < closestDistance) {
				std::cout << "[RAYCAST]   *** HIT DETECTED! ***" << std::endl;
				closestDistance = distanceAlongRay;
				closestObject = &intObj;
			}
		}

		if (closestObject) {
			std::cout << "[RAYCAST] *** RAYCAST SUCCESS: Found object " << closestObject->name << " ***" << std::endl;
		}
		else {
			std::cout << "[RAYCAST] No objects hit" << std::endl;
		}

		return closestObject;
	}

	Character* Location::raycastNpcs(const Eigen::Vector3f& rayOrigin, const Eigen::Vector3f& rayDir, float maxDistance) {
		Character* closestNpc = nullptr;
		float closestDist = maxDistance;

		for (auto& npc : npcs) {
			Eigen::Vector3f toNpc = npc->position - rayOrigin;
			float distAlongRay = toNpc.dot(rayDir);
			if (distAlongRay < 0.1f) continue;

			Eigen::Vector3f closestPoint = rayOrigin + rayDir * distAlongRay;
			float distToNpc = (closestPoint - npc->position).norm();

			float radius = npc->modelScale * 50.0f;

			if (distToNpc <= radius && distAlongRay < closestDist) {
				closestDist = distAlongRay;
				closestNpc = npc.get();
			}
		}
		return closestNpc;
	}


	void Location::drawGame()
	{
		glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
		glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);


		renderer.shaderManager.PushShader(defaultShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);

		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
		renderer.PushMatrix();

		renderer.LoadIdentity();
		renderer.TranslateMatrix({ 0,0, -1.0f * Environment::zoom });
		//renderer.TranslateMatrix({ 0, -6.f, 0 });

		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(cameraInclination, Eigen::Vector3f::UnitX())).toRotationMatrix());
		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(cameraAzimuth, Eigen::Vector3f::UnitY())).toRotationMatrix());
		const Eigen::Vector3f& camTarget = player ? player->position : Eigen::Vector3f::Zero();
		renderer.TranslateMatrix({ -camTarget.x(), -camTarget.y(), -camTarget.z() });

		glBindTexture(GL_TEXTURE_2D, roomTexture->getTexID());
		renderer.DrawVertexRenderStruct(roomMesh);

		for (auto& [name, gameObj] : gameObjects) {
			glBindTexture(GL_TEXTURE_2D, gameObj.texture->getTexID());
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}

		for (auto& intObj : interactiveObjects) {
			if (intObj.isActive) {
				intObj.draw(renderer);
			}
		}

		if (player) player->draw(renderer);
		for (auto& npc : npcs) npc->draw(renderer);

#ifdef SHOW_PATH
		drawDebugNavigation();
#endif

		renderer.PopMatrix();

		renderer.PopProjectionMatrix();

		renderer.shaderManager.PopShader();

	}

	void Location::drawShadowDepthPass()
	{
		if (!shadowMap) return;

		const Eigen::Vector3f& sceneCenter = player ? player->position : Eigen::Vector3f::Zero();
		shadowMap->updateLightSpaceMatrix(sceneCenter);

		shadowMap->bind();

		glEnable(GL_DEPTH_TEST);
		glDepthFunc(GL_LESS);

		// Use front-face culling during depth pass to reduce shadow acne on lit faces
		//glCullFace(GL_FRONT);
		glEnable(GL_CULL_FACE);

		renderer.shaderManager.PushShader("shadow_depth");

		// Set up light's orthographic projection
		const Eigen::Matrix4f& lightProj = shadowMap->getLightProjectionMatrix();
		const Eigen::Matrix4f& lightView = shadowMap->getLightViewMatrix();

		// Push the light's projection matrix via the 6-param ortho overload won't
		// match our pre-computed matrix. Instead, use the raw stack approach:
		// push a dummy projection then overwrite via PushSpecialMatrix-style.
		// Simpler: push ortho then push the light view as modelview.
		renderer.PushProjectionMatrix(
			-40.0f, 40.0f,
			-40.0f, 40.0f,
			0.1f, 100.0f);

		const Eigen::Vector3f& lightDir = shadowMap->getLightDirection();
		Eigen::Vector3f lightPos = sceneCenter - lightDir * 50.0f;
		Eigen::Vector3f up(0.0f, 1.0f, 0.0f);
		if (std::abs(lightDir.dot(up)) > 0.99f) {
			up = Eigen::Vector3f(0.0f, 0.0f, 1.0f);
		}

		// Build the light view matrix and push it
		renderer.PushSpecialMatrix(lightView);

		// Draw static geometry
		renderer.DrawVertexRenderStruct(roomMesh);

		for (auto& [name, gameObj] : gameObjects) {
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}

		for (auto& intObj : interactiveObjects) {
			if (intObj.isActive && intObj.texture) {
				renderer.PushMatrix();
				renderer.TranslateMatrix(intObj.position);
				renderer.DrawVertexRenderStruct(intObj.mesh);
				renderer.PopMatrix();
			}
		}

		// Draw characters (they handle their own skinning shader switch internally)
		if (player) player->drawShadowDepth(renderer);
		for (auto& npc : npcs) npc->drawShadowDepth(renderer);

		renderer.PopMatrix();  // light view
		renderer.PopProjectionMatrix();
		renderer.shaderManager.PopShader();

		//glCullFace(GL_BACK);
		glDisable(GL_CULL_FACE);

		shadowMap->unbind();
	}

	void Location::drawGameWithShadows()
	{
		glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
		glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);

#ifdef DEBUG_LIGHT
		// Debug mode: render from the light's point of view using the plain
		// textured shader so we can see what the shadow map "sees".
		renderer.shaderManager.PushShader(defaultShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);

		renderer.PushProjectionMatrix(
			-40.0f, 40.0f,
			-40.0f, 40.0f,
			0.1f, 1000.0f);

		renderer.PushSpecialMatrix(shadowMap->getLightViewMatrix());

#else
		static const std::string shadowShaderName = "default_shadow";

		renderer.shaderManager.PushShader(shadowShaderName);
		renderer.RenderUniform1i(textureUniformName, 0);
		renderer.RenderUniform1i("uShadowMap", 1);

		// Bind shadow map texture to unit 1
		glActiveTexture(GL_TEXTURE1);
		glBindTexture(GL_TEXTURE_2D, shadowMap->getDepthTexture());
		glActiveTexture(GL_TEXTURE0);

		renderer.PushPerspectiveProjectionMatrix(1.0 / 1.5,
			static_cast<float>(Environment::width) / static_cast<float>(Environment::height),
			Environment::CONST_Z_NEAR, Environment::CONST_Z_FAR);
		renderer.PushMatrix();

		renderer.LoadIdentity();
		renderer.TranslateMatrix({ 0,0, -1.0f * Environment::zoom });

		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(cameraInclination, Eigen::Vector3f::UnitX())).toRotationMatrix());
		renderer.RotateMatrix(Eigen::Quaternionf(Eigen::AngleAxisf(cameraAzimuth, Eigen::Vector3f::UnitY())).toRotationMatrix());
		const Eigen::Vector3f& camTarget = player ? player->position : Eigen::Vector3f::Zero();
		renderer.TranslateMatrix({ -camTarget.x(), -camTarget.y(), -camTarget.z() });

		// Capture the camera view matrix and compute uLightFromCamera
		cameraViewMatrix = renderer.GetCurrentModelViewMatrix();
		Eigen::Matrix4f cameraViewInverse = cameraViewMatrix.inverse();
		Eigen::Matrix4f lightFromCamera = shadowMap->getLightSpaceMatrix() * cameraViewInverse;
		renderer.RenderUniformMatrix4fv("uLightFromCamera", false, lightFromCamera.data());

		// Light direction in camera space for diffuse lighting
		Eigen::Vector3f lightDirCamera = cameraViewMatrix.block<3, 3>(0, 0) * shadowMap->getLightDirection();
		renderer.RenderUniform3fv("uLightDir", lightDirCamera.data());
#endif

		CheckGlError(__FILE__, __LINE__);
		glBindTexture(GL_TEXTURE_2D, roomTexture->getTexID());
		renderer.DrawVertexRenderStruct(roomMesh);

		CheckGlError(__FILE__, __LINE__);
		for (auto& [name, gameObj] : gameObjects) {
			glBindTexture(GL_TEXTURE_2D, gameObj.texture->getTexID());
			renderer.DrawVertexRenderStruct(gameObj.mesh);
		}

		CheckGlError(__FILE__, __LINE__);
		for (auto& intObj : interactiveObjects) {
			if (intObj.isActive) {
				intObj.draw(renderer);
			}
		}
		CheckGlError(__FILE__, __LINE__);

#ifdef DEBUG_LIGHT
		// In debug-light mode characters use the plain shaders (draw normally
		// but from the light's viewpoint — projection/view already on stack).
		if (player) player->draw(renderer);
		for (auto& npc : npcs) npc->draw(renderer);
#else
		// Characters use their own shadow-aware shaders
		CheckGlError(__FILE__, __LINE__);

		if (player) player->drawWithShadow(renderer, lightFromCamera, shadowMap->getDepthTexture(), lightDirCamera);
		CheckGlError(__FILE__, __LINE__);

		for (auto& npc : npcs) npc->drawWithShadow(renderer, lightFromCamera, shadowMap->getDepthTexture(), lightDirCamera);
#endif
		CheckGlError(__FILE__, __LINE__);

		renderer.PopMatrix();
		renderer.PopProjectionMatrix();
		renderer.shaderManager.PopShader();
	}

	bool Location::setNavigationAreaAvailable(const std::string& areaName, bool available)
	{
		return navigation.setAreaAvailable(areaName, available);
	}

	void Location::update(int64_t delta)
	{
		if (player) {
			player->update(delta);
		    dialogueSystem.update(static_cast<int>(delta), player->position);
		}
		for (auto& npc : npcs)
		{
			npc->update(delta);
		}

		// Check if player reached target interactive object
		if (targetInteractiveObject && player) {
			float distToObject = (player->position - targetInteractiveObject->position).norm();

			// If player is close enough to pick up the item
			if (distToObject <= targetInteractiveObject->interactionRadius + 1.0f) {
				std::cout << "[PICKUP] Player reached object! Distance: " << distToObject << std::endl;
				std::cout << "[PICKUP] Calling Lua callback for: " << targetInteractiveObject->id << std::endl;

				// Call custom activate function if specified, otherwise use fallback
				try {
					if (!targetInteractiveObject->activateFunctionName.empty()) {
						std::cout << "[PICKUP] Using custom function: " << targetInteractiveObject->activateFunctionName << std::endl;
						scriptEngine.callActivateFunction(targetInteractiveObject->activateFunctionName);
					}
					else {
						std::cout << "[PICKUP] Using fallback callback" << std::endl;
						scriptEngine.callItemPickupCallback(targetInteractiveObject->id);
					}
				}
				catch (const std::exception& e) {
					std::cerr << "[PICKUP] Error calling function: " << e.what() << std::endl;
				}

				targetInteractiveObject = nullptr;
			}
		}
	}

	void Location::handleDown(int64_t fingerId, int eventX, int eventY, int mx, int my)
	{
		// Calculate ray for picking
		if (dialogueSystem.blocksGameplayInput()) {
			dialogueSystem.handlePointerReleased(static_cast<float>(mx), Environment::projectionHeight - static_cast<float>(my));
			return;
		}

		player->attackTarget = nullptr;

		// Unproject click to ground plane (y=0) for Viola's walk target
		float ndcX = 2.0f * eventX / Environment::width - 1.0f;
		float ndcY = 1.0f - 2.0f * eventY / Environment::height;
		float aspect = (float)Environment::width / (float)Environment::height;
		float tanHalfFov = tan(CAMERA_FOV_Y * 0.5f);

		float cosAzim = cos(cameraAzimuth), sinAzim = sin(cameraAzimuth);
		float cosIncl = cos(cameraInclination), sinIncl = sin(cameraInclination);

		Eigen::Vector3f camRight(cosAzim, 0.f, sinAzim);
		Eigen::Vector3f camForward(sinAzim * cosIncl, -sinIncl, -cosAzim * cosIncl);
		Eigen::Vector3f camUp(sinAzim * sinIncl, cosIncl, -cosAzim * sinIncl);
		const Eigen::Vector3f& playerPos = player ? player->position : Eigen::Vector3f::Zero();
		Eigen::Vector3f camPos = playerPos + Eigen::Vector3f(-sinAzim * cosIncl, sinIncl, cosAzim * cosIncl) * Environment::zoom;

		Eigen::Vector3f rayDir = (camForward + camRight * (ndcX * aspect * tanHalfFov) + camUp * (ndcY * tanHalfFov)).normalized();

		std::cout << "[CLICK] Camera position: (" << camPos.x() << ", " << camPos.y() << ", " << camPos.z() << ")" << std::endl;
		std::cout << "[CLICK] Ray direction: (" << rayDir.x() << ", " << rayDir.y() << ", " << rayDir.z() << ")" << std::endl;

		// First check if we clicked on interactive object
		InteractiveObject* clickedObject = raycastInteractiveObjects(camPos, rayDir);
		if (clickedObject && player && clickedObject->isActive) {
			std::cout << "[CLICK] *** SUCCESS: Clicked on interactive object: " << clickedObject->name << " ***" << std::endl;
			std::cout << "[CLICK] Object position: (" << clickedObject->position.x() << ", "
				<< clickedObject->position.y() << ", " << clickedObject->position.z() << ")" << std::endl;
			std::cout << "[CLICK] Player position: (" << player->position.x() << ", "
				<< player->position.y() << ", " << player->position.z() << ")" << std::endl;

			targetInteractiveObject = clickedObject;
			player->setTarget(clickedObject->position);
			player->attackTarget = nullptr;
			std::cout << "[CLICK] Player moving to object..." << std::endl;
		}
		else {

			// Check if we clicked on an NPC
			Character* clickedNpc = raycastNpcs(camPos, rayDir);
			if (clickedNpc && player) {
				float distance = (player->position - clickedNpc->position).norm();
				int npcIndex = -1;
				for (size_t i = 0; i < npcs.size(); ++i) {
					if (npcs[i].get() == clickedNpc) {
						npcIndex = static_cast<int>(i);
						break;
					}
				}
				if (npcIndex != -1) {
					if (distance <= clickedNpc->interactionRadius) {
						std::cout << "[CLICK] *** SUCCESS: Clicked on NPC index: " << npcIndex << " ***" << std::endl;
						scriptEngine.callNpcInteractCallback(npcIndex);
					}
					else {
						std::cout << "[CLICK] Too far from NPC (distance " << distance
							<< " > " << clickedNpc->interactionRadius << ")" << std::endl;
					}

					if (clickedNpc->canAttack)
					{
						player->attackTarget = clickedNpc;
					}
					else
					{
						player->attackTarget = nullptr;
					}
				}

			}
			else if (rayDir.y() < -0.001f && player) {
				// Otherwise, unproject click to ground plane for Viola's walk target
				float t = -camPos.y() / rayDir.y();
				Eigen::Vector3f hit = camPos + rayDir * t;
				std::cout << "[CLICK] Clicked on ground at: (" << hit.x() << ", " << hit.z() << ")" << std::endl;

				player->setTarget(Eigen::Vector3f(hit.x(), 0.f, hit.z()));
				player->attackTarget = nullptr;
			}
			else {
				std::cout << "[CLICK] No valid target found" << std::endl;
			}
		}
		std::cout << "========================================\n" << std::endl;
	}
	void Location::handleUp(int64_t fingerId, int mx, int my)
	{

	}
	void Location::handleMotion(int64_t fingerId, int eventX, int eventY, int mx, int my)
	{
		if (dialogueSystem.blocksGameplayInput()) {
			dialogueSystem.handlePointerMoved(
				static_cast<float>(mx),
				Environment::projectionHeight - static_cast<float>(my)
			);
		}

		if (rightMouseDown) {
			int dx = eventX - lastMouseX;
			int dy = eventY - lastMouseY;
			lastMouseX = eventX;
			lastMouseY = eventY;

			const float sensitivity = 0.005f;
			cameraAzimuth += dx * sensitivity;
			cameraInclination += dy * sensitivity;

			const float minInclination = M_PI * 30.f / 180.f;
			const float maxInclination = M_PI * 0.5f;
			cameraInclination = max(minInclination, min(maxInclination, cameraInclination));
		}
	}

	bool Location::requestDialogueStart(const std::string& dialogueId)
	{
		return dialogueSystem.startDialogue(dialogueId);
	}

	void Location::setDialogueFlag(const std::string& flag, int value)
	{
		dialogueSystem.setFlag(flag, value);
	}

	int Location::getDialogueFlag(const std::string& flag) const
	{
		return dialogueSystem.getFlag(flag);
	}


} // namespace ZL