using UnityEngine;
using System.Collections.Generic;

public class NewRoomBuilder : MonoBehaviour
{
    [Header("Prefabs")]
    public GameObject wallPrefab;
    public GameObject wallPointPrefab;
    public GameObject doorOpeningPrefab;

    [Header("Settings")]
    public float wallHeight = 3f;
    public float wallThickness = 0.2f;
    public float doorWidth = 1.5f;
    public float doorHeight = 2.5f;
    public float snapDistance = 1f; // Distance for snapping to existing points

    private Camera playerCamera;
    private BuildingUIController.BuildingMode currentMode = BuildingUIController.BuildingMode.Normal;

    // Wall creation state
    private bool isCreatingWall = false;
    private Vector3 wallStartPoint;
    private GameObject previewWall;
    private LineRenderer previewLine;

    // Available angles (in degrees)
    private readonly float[] snapAngles = { 0f, 45f, 90f, 135f, 180f, 225f, 270f, 315f };

    // Wall storage
    private List<GameObject> walls = new List<GameObject>();

    // Door preview
    private GameObject doorPreview;
    private GameObject hoveredWall;

    // Snap indicators
    private GameObject snapIndicator;
    private GameObject currentSnapPoint;

    private void Start()
    {
        // Try multiple ways to find the camera
        playerCamera = Camera.main;
        if (playerCamera == null)
        {
            playerCamera = FindFirstObjectByType<Camera>();
            Debug.LogWarning($"Camera.main was null, found camera: {playerCamera?.name ?? "NONE"}");
        }

        if (playerCamera == null)
        {
            Debug.LogError("No camera found! Wall detection will not work.");
        }
        else
        {
            Debug.Log($"Using camera: {playerCamera.name} at {playerCamera.transform.position}");
        }

        CreatePreviewLine();
        CreateDoorPreview();
        CreateSnapIndicator();

        // Ensure we have prefabs
        EnsurePrefabsExist();

        // Fix any existing walls that might not be tagged properly
        FixExistingWallTags();
    }

    private void FixExistingWallTags()
    {
        // First, look for walls that are already properly tagged (from InitialRoomSetup)
        GameObject[] existingWalls = GameObject.FindGameObjectsWithTag("Wall");
        Debug.Log($"Found {existingWalls.Length} objects already tagged as 'Wall'");

        foreach (GameObject wall in existingWalls)
        {
            if (!walls.Contains(wall))
            {
                walls.Add(wall);
                Debug.Log($"Added existing tagged wall to tracking: {wall.name} - Scale: {wall.transform.localScale}");
            }
        }

        // If we found properly tagged walls, we're done
        if (existingWalls.Length > 0)
        {
            Debug.Log($"Successfully found and added {existingWalls.Length} pre-tagged walls from InitialRoomSetup");
            return;
        }

        // Fallback: Look for objects that should be walls but aren't tagged yet
        GameObject[] allObjects = FindObjectsByType<GameObject>(FindObjectsSortMode.None);
        int fixedWalls = 0;

        Debug.Log($"No pre-tagged walls found. Scanning {allObjects.Length} objects for potential walls...");

        foreach (GameObject obj in allObjects)
        {
            // Skip door components and other non-wall objects
            if (obj.name.Contains("Post") || obj.name.Contains("Beam") || obj.name.Contains("Door") ||
                obj.name.Contains("Mat") || obj.name.Contains("Entrance") || obj.name.Contains("Frame"))
            {
                continue;
            }

            // Look for specific wall naming patterns from InitialRoomSetup
            bool isInitialRoomWall = obj.name.Contains("North Wall") || obj.name.Contains("South Wall") ||
                                   obj.name.Contains("East Wall") || obj.name.Contains("West Wall");

            // Also check for other wall patterns
            bool isWallObject = obj.name.Contains("Wall") ||
                               obj.name.Contains("wall") ||
                               obj.name.StartsWith("Room") ||
                               obj.name.Contains("Interior");

            if ((isInitialRoomWall || isWallObject) && !obj.CompareTag("Wall"))
            {
                // Additional check: make sure it has a collider (walls should have colliders)
                if (obj.GetComponent<Collider>() != null || obj.GetComponentInChildren<Collider>() != null)
                {
                    Debug.Log($"Found untagged wall: {obj.name} - Scale: {obj.transform.localScale}, Position: {obj.transform.position}");

                    obj.tag = "Wall";
                    fixedWalls++;
                    Debug.Log($"Fixed wall tag for: {obj.name}");

                    // Also add it to our walls list
                    if (!walls.Contains(obj))
                    {
                        walls.Add(obj);
                        Debug.Log($"Added newly tagged wall to tracking: {obj.name}");
                    }
                }
            }
        }

        if (fixedWalls > 0)
        {
            Debug.Log($"Fixed {fixedWalls} existing walls that weren't properly tagged");
        }
        else
        {
            Debug.Log("No walls found at all. This might indicate InitialRoomSetup hasn't run or there's a scene setup issue.");

            // Debug: List some objects to see what's in the scene
            Debug.Log("Sample objects in scene:");
            for (int i = 0; i < Mathf.Min(20, allObjects.Length); i++)
            {
                if (allObjects[i].name.Contains("Wall") || allObjects[i].name.Contains("wall") ||
                    allObjects[i].transform.localScale.y > 2f)
                {
                    Debug.Log($"  Potential wall: {allObjects[i].name} - Scale: {allObjects[i].transform.localScale} - Tag: {allObjects[i].tag}");
                }
            }
        }
    }

    private void EnsurePrefabsExist()
    {
        // Create basic prefabs if they don't exist
        if (wallPrefab == null)
        {
            wallPrefab = CreateWallPrefab();
            Debug.Log("Created wall prefab dynamically");
        }

        if (wallPointPrefab == null)
        {
            wallPointPrefab = CreateWallPointPrefab();
            Debug.Log("Created wall point prefab dynamically");
        }

        if (doorOpeningPrefab == null)
        {
            doorOpeningPrefab = CreateDoorOpeningPrefab();
            Debug.Log("Created door opening prefab dynamically");
        }
    }

    #region Prefab Creation

    private GameObject CreateWallPrefab()
    {
        // Create a parent GameObject for the wall
        GameObject wall = new GameObject("Wall_Prefab");

        // Add a cube as child for the visual representation
        GameObject wallMesh = GameObject.CreatePrimitive(PrimitiveType.Cube);
        wallMesh.name = "WallMesh";
        wallMesh.transform.SetParent(wall.transform);
        wallMesh.transform.localPosition = Vector3.zero;
        wallMesh.transform.localRotation = Quaternion.identity;
        wallMesh.transform.localScale = Vector3.one;

        // Set up the wall material
        Renderer renderer = wallMesh.GetComponent<Renderer>();
        Material wallMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));

        // Set up proper wall color - light gray/beige
        wallMaterial.color = new Color(0.9f, 0.9f, 0.8f); // Light beige/cream color

        // Make sure it's not metallic and has proper smoothness
        wallMaterial.SetFloat("_Metallic", 0.0f);
        wallMaterial.SetFloat("_Smoothness", 0.2f);

        renderer.material = wallMaterial;

        // Ensure the wall has a collider for door placement detection
        BoxCollider collider = wallMesh.GetComponent<BoxCollider>();
        if (collider == null)
        {
            collider = wallMesh.AddComponent<BoxCollider>();
        }

        wall.tag = "Wall";

        // Don't destroy this object, keep it for instantiation
        DontDestroyOnLoad(wall);
        wall.SetActive(false); // Hide the template

        return wall;
    }
    private GameObject CreateWallPointPrefab()
    {
        // Create a parent GameObject for the wall point
        GameObject point = new GameObject("WallPoint_Prefab");

        // Add a sphere as child for the visual representation
        GameObject pointMesh = GameObject.CreatePrimitive(PrimitiveType.Sphere);
        pointMesh.name = "PointMesh";
        pointMesh.transform.SetParent(point.transform);
        pointMesh.transform.localPosition = Vector3.zero;
        pointMesh.transform.localRotation = Quaternion.identity;
        pointMesh.transform.localScale = Vector3.one * 0.2f;

        Renderer renderer = pointMesh.GetComponent<Renderer>();
        Material pointMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));

        // Set up bright red color for wall points
        pointMaterial.color = Color.red;
        pointMaterial.SetFloat("_Metallic", 0.0f);
        pointMaterial.SetFloat("_Smoothness", 0.8f); // Make it a bit shinier for visibility

        renderer.material = pointMaterial;

        // Remove collider to prevent interference
        Collider collider = pointMesh.GetComponent<Collider>();
        if (collider != null) DestroyImmediate(collider);

        DontDestroyOnLoad(point);
        point.SetActive(false); // Hide the template

        return point;
    }

    private GameObject CreateDoorOpeningPrefab()
    {
        // Create a parent GameObject for the door frame (visible part)
        GameObject door = new GameObject("DoorOpening_Prefab");

        // Create door frame - just the frame, not a solid door
        GameObject doorFrame = new GameObject("DoorFrame");
        doorFrame.transform.SetParent(door.transform);

        // Create frame components: left post, right post, top beam
        // Posts should be positioned at ground level with proper Y positioning
        CreateDoorFramePost(doorFrame, "LeftPost", new Vector3(-doorWidth / 2f, doorHeight / 2f, 0f));
        CreateDoorFramePost(doorFrame, "RightPost", new Vector3(doorWidth / 2f, doorHeight / 2f, 0f));
        CreateDoorFrameBeam(doorFrame, "TopBeam", new Vector3(0f, doorHeight - 0.1f, 0f));

        door.tag = "Door";
        DontDestroyOnLoad(door);

        return door;
    }

    private void CreateDoorFramePost(GameObject parent, string name, Vector3 position)
    {
        GameObject post = GameObject.CreatePrimitive(PrimitiveType.Cube);
        post.name = name;
        post.transform.SetParent(parent.transform);
        post.transform.localPosition = position;
        post.transform.localScale = new Vector3(0.1f, doorHeight, 0.2f); // Thin post

        Renderer renderer = post.GetComponent<Renderer>();
        Material frameMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));
        frameMaterial.color = new Color(0.4f, 0.2f, 0.1f); // Brown wood
        frameMaterial.SetFloat("_Metallic", 0.0f);
        frameMaterial.SetFloat("_Smoothness", 0.3f);
        renderer.material = frameMaterial;
    }

    private void CreateDoorFrameBeam(GameObject parent, string name, Vector3 position)
    {
        GameObject beam = GameObject.CreatePrimitive(PrimitiveType.Cube);
        beam.name = name;
        beam.transform.SetParent(parent.transform);
        beam.transform.localPosition = position;
        beam.transform.localScale = new Vector3(doorWidth + 0.2f, 0.2f, 0.2f); // Wide beam across top

        Renderer renderer = beam.GetComponent<Renderer>();
        Material frameMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));
        frameMaterial.color = new Color(0.4f, 0.2f, 0.1f); // Brown wood
        frameMaterial.SetFloat("_Metallic", 0.0f);
        frameMaterial.SetFloat("_Smoothness", 0.3f);
        renderer.material = frameMaterial;
    }

    #endregion

    #region Main Update Loop

    private void Update()
    {
        switch (currentMode)
        {
            case BuildingUIController.BuildingMode.CreatingWalls:
                HandleWallCreation();
                break;

            case BuildingUIController.BuildingMode.CreatingDoors:
                HandleDoorPlacement();
                break;

            case BuildingUIController.BuildingMode.CreatingEntrance:
                HandleEntranceCreation();
                break;

            default:
                HandleNormalMode();
                HideAllPreviews();
                break;
        }
    }

    public void SetBuildingMode(BuildingUIController.BuildingMode mode)
    {
        // Cancel any current wall creation
        if (isCreatingWall)
        {
            CancelWallCreation();
        }

        currentMode = mode;
        HideAllPreviews();

        Debug.Log($"Building mode changed to: {mode}");
    }

    #endregion

    #region Normal Mode

    private void HandleNormalMode()
    {
        // In normal mode, allow deletion of entrances with right-click
        if (Input.GetMouseButtonDown(1)) // Right click
        {
            Vector3 mousePos = GetMouseWorldPosition();
            CheckForEntranceDeletion(mousePos);
        }
    }

    private void CheckForEntranceDeletion(Vector3 mousePos)
    {
        Ray ray = playerCamera.ScreenPointToRay(Input.mousePosition);

        if (Physics.Raycast(ray, out RaycastHit hit, 1000f))
        {
            GameObject hitObj = hit.collider.gameObject;

            // Check if we hit an entrance or entrance component
            GameObject entranceToDelete = null;

            if (hitObj.CompareTag("Entrance"))
            {
                entranceToDelete = hitObj;
            }
            else if (hitObj.transform.parent != null && hitObj.transform.parent.CompareTag("Entrance"))
            {
                entranceToDelete = hitObj.transform.parent.gameObject;
            }

            if (entranceToDelete != null)
            {
                Debug.Log($"Deleting entrance: {entranceToDelete.name}");
                DestroyImmediate(entranceToDelete);

                // Note: The wall segments around the entrance will remain
                // This creates a permanent opening where the entrance was
            }
        }
    }

    #endregion

    #region Wall Creation

    private void HandleWallCreation()
    {
        Vector3 mousePos = GetMouseWorldPosition();

        if (Input.GetMouseButtonDown(0)) // Left click
        {
            if (!isCreatingWall)
            {
                // Start creating a wall
                StartWallCreation(mousePos);
            }
            else
            {
                // Finish creating the wall
                FinishWallCreation(mousePos);
            }
        }
        else if (Input.GetMouseButtonDown(1)) // Right click
        {
            // Cancel wall creation
            if (isCreatingWall)
            {
                CancelWallCreation();
            }
        }

        // Update preview while creating wall
        if (isCreatingWall)
        {
            UpdateWallPreview(mousePos);
        }
    }

    private void StartWallCreation(Vector3 startPoint)
    {
        // Snap to nearby existing points
        Vector3 snappedStart = SnapToNearbyPoint(startPoint);

        wallStartPoint = snappedStart;
        isCreatingWall = true;

        // Show preview
        if (previewLine != null)
        {
            previewLine.enabled = true;
        }

        Debug.Log($"Started wall creation at: {wallStartPoint}");
    }

    private void UpdateWallPreview(Vector3 currentMousePos)
    {
        if (!isCreatingWall || previewLine == null) return;

        // Calculate snapped end point
        Vector3 snappedEndPoint = SnapToAngle(wallStartPoint, currentMousePos);
        Vector3 finalSnappedPoint = SnapToNearbyPoint(snappedEndPoint);

        // Show snap indicator if we're snapping to something
        if (Vector3.Distance(finalSnappedPoint, snappedEndPoint) > 0.1f)
        {
            ShowSnapIndicator(finalSnappedPoint);
        }
        else
        {
            HideSnapIndicator();
        }

        // Update preview line
        previewLine.SetPosition(0, wallStartPoint);
        previewLine.SetPosition(1, finalSnappedPoint);
    }

    private void ShowSnapIndicator(Vector3 position)
    {
        if (snapIndicator != null)
        {
            snapIndicator.transform.position = position;
            snapIndicator.SetActive(true);
        }
    }

    private void HideSnapIndicator()
    {
        if (snapIndicator != null)
        {
            snapIndicator.SetActive(false);
        }
    }

    private void FinishWallCreation(Vector3 endPoint)
    {
        if (!isCreatingWall) return;

        // Calculate snapped end point
        Vector3 snappedEndPoint = SnapToAngle(wallStartPoint, endPoint);
        snappedEndPoint = SnapToNearbyPoint(snappedEndPoint);

        // Create the actual wall
        CreateWall(wallStartPoint, snappedEndPoint);

        // Reset state
        isCreatingWall = false;
        if (previewLine != null)
        {
            previewLine.enabled = false;
        }

        Debug.Log($"Created wall from {wallStartPoint} to {snappedEndPoint}");
    }

    private void CancelWallCreation()
    {
        isCreatingWall = false;
        if (previewLine != null)
        {
            previewLine.enabled = false;
        }

        Debug.Log("Wall creation cancelled");
    }

    private Vector3 SnapToAngle(Vector3 startPoint, Vector3 endPoint)
    {
        Vector3 direction = (endPoint - startPoint).normalized;
        float distance = Vector3.Distance(startPoint, endPoint);

        // Calculate angle in degrees
        float currentAngle = Mathf.Atan2(direction.z, direction.x) * Mathf.Rad2Deg;
        if (currentAngle < 0) currentAngle += 360f;

        // Find closest snap angle
        float closestAngle = snapAngles[0];
        float smallestDifference = Mathf.Abs(currentAngle - closestAngle);

        foreach (float angle in snapAngles)
        {
            float difference = Mathf.Abs(currentAngle - angle);
            if (difference > 180f) difference = 360f - difference; // Handle wrapping

            if (difference < smallestDifference)
            {
                smallestDifference = difference;
                closestAngle = angle;
            }
        }

        // Calculate snapped direction
        float rad = closestAngle * Mathf.Deg2Rad;
        Vector3 snappedDirection = new Vector3(Mathf.Cos(rad), 0f, Mathf.Sin(rad));

        return startPoint + snappedDirection * distance;
    }

    private Vector3 SnapToNearbyPoint(Vector3 point)
    {
        float closestCornerDistance = float.MaxValue;
        float closestWallDistance = float.MaxValue;
        Vector3 closestCornerPoint = point;
        Vector3 closestWallPoint = point;
        bool foundCorner = false;

        foreach (GameObject wall in walls)
        {
            if (wall == null) continue;

            // First priority: Check both endpoints of the wall (corners)
            Vector3[] endpoints = GetWallEndpoints(wall);
            foreach (Vector3 endpoint in endpoints)
            {
                float distance = Vector3.Distance(point, endpoint);
                if (distance < snapDistance && distance < closestCornerDistance)
                {
                    closestCornerDistance = distance;
                    closestCornerPoint = endpoint;
                    foundCorner = true;
                    Debug.Log($"Found corner snap point at {endpoint}, distance: {distance}");
                }
            }

            // Second priority: Check snapping to wall surface/center (only if no corner found nearby)
            if (!foundCorner || closestCornerDistance > snapDistance * 0.7f) // Allow wall snapping if no close corner
            {
                Vector3 wallCenter = wall.transform.position;
                wallCenter.y = 0f; // Project to ground level

                // Project point onto wall line to find closest point on wall
                Vector3 wallDirection = wall.transform.forward;
                Vector3 toPoint = point - wallCenter;
                float projection = Vector3.Dot(toPoint, wallDirection);

                // Clamp projection to wall bounds
                float wallLength = wall.transform.localScale.z;
                projection = Mathf.Clamp(projection, -wallLength / 2f, wallLength / 2f);

                Vector3 closestPointOnWall = wallCenter + wallDirection * projection;
                float wallDistance = Vector3.Distance(point, closestPointOnWall);

                // Snap to wall surface if clicking near the wall
                if (wallDistance < snapDistance && wallDistance < closestWallDistance)
                {
                    closestWallDistance = wallDistance;
                    closestWallPoint = closestPointOnWall;
                    Debug.Log($"Found wall surface snap point at {closestPointOnWall}, distance: {wallDistance}");
                }
            }
        }

        // Return the best snap point: prioritize corners over wall surfaces
        if (foundCorner && closestCornerDistance < snapDistance)
        {
            Debug.Log($"Using corner snap point: {closestCornerPoint}");
            UpdateSnapIndicatorColor(true); // Corner = cyan
            return closestCornerPoint;
        }
        else if (closestWallDistance < snapDistance)
        {
            Debug.Log($"Using wall surface snap point: {closestWallPoint}");
            UpdateSnapIndicatorColor(false); // Wall surface = yellow
            return closestWallPoint;
        }

        Debug.Log($"No snap point found, using original point: {point}");
        return point;
    }

    private void UpdateSnapIndicatorColor(bool isCorner)
    {
        if (snapIndicator != null)
        {
            Renderer renderer = snapIndicator.GetComponent<Renderer>();
            if (renderer != null)
            {
                Color indicatorColor = isCorner ? Color.cyan : Color.yellow;
                Color emissionColor = indicatorColor * 2f;

                renderer.material.color = indicatorColor;
                renderer.material.SetColor("_EmissionColor", emissionColor);
            }
        }
    }

    private void CreateWall(Vector3 startPoint, Vector3 endPoint)
    {
        if (Vector3.Distance(startPoint, endPoint) < 0.1f) return; // Too short

        // Calculate wall properties
        Vector3 center = (startPoint + endPoint) / 2f;
        center.y = wallHeight / 2f; // Set proper height

        Vector3 direction = (endPoint - startPoint).normalized;
        float length = Vector3.Distance(startPoint, endPoint);

        // Create wall object from prefab
        GameObject wall = Instantiate(wallPrefab, center, Quaternion.LookRotation(direction, Vector3.up));
        wall.SetActive(true); // Make sure it's visible

        // Scale the entire wall object to proper dimensions:
        // X = thickness (perpendicular to wall direction)
        // Y = height (up/down)  
        // Z = length (along the wall direction)
        wall.transform.localScale = new Vector3(wallThickness, wallHeight, length);

        // Set wall name and add to list
        wall.name = $"Wall_{walls.Count}";
        walls.Add(wall);

        Debug.Log($"Created wall: {wall.name} from {startPoint} to {endPoint}, length: {length}");
    }

    #endregion

    #region Door Placement

    private void HandleDoorPlacement()
    {
        Vector3 mousePos = GetMouseWorldPosition();

        // Find wall under mouse
        GameObject wallUnderMouse = FindWallUnderMouse(mousePos);

        // Update hover preview
        UpdateDoorPreview(wallUnderMouse, mousePos);

        if (Input.GetMouseButtonDown(0)) // Left click
        {
            Debug.Log($"Door placement click detected at {mousePos}");
            if (wallUnderMouse != null)
            {
                Debug.Log($"Wall found under mouse: {wallUnderMouse.name}");
                PlaceDoorOnWall(wallUnderMouse, mousePos);
            }
            else
            {
                Debug.LogWarning("No wall found under mouse cursor for door placement");
                // Let's try a different approach - check nearby walls
                GameObject nearestWall = FindNearestWall(mousePos);
                if (nearestWall != null)
                {
                    Debug.Log($"Found nearest wall: {nearestWall.name}, placing door there");
                    PlaceDoorOnWall(nearestWall, mousePos);
                }
                else
                {
                    Debug.LogWarning("No walls found nearby for door placement");
                }
            }
        }
    }

    private void UpdateDoorPreview(GameObject wall, Vector3 mousePos)
    {
        if (wall != hoveredWall)
        {
            hoveredWall = wall;

            if (wall != null)
            {
                ShowDoorPreview(wall, mousePos);
            }
            else
            {
                HideDoorPreview();
            }
        }
        else if (wall != null)
        {
            // Update preview position
            ShowDoorPreview(wall, mousePos);
        }
    }

    private void ShowDoorPreview(GameObject wall, Vector3 mousePos)
    {
        if (doorPreview == null) return;

        // Calculate door position on the wall
        Vector3 doorPosition = CalculateDoorPositionOnWall(wall, mousePos);

        // Position and orient the preview - door should face perpendicular to wall
        doorPreview.transform.position = doorPosition;
        doorPreview.transform.rotation = Quaternion.LookRotation(wall.transform.right);
        doorPreview.SetActive(true);
    }

    private void HideDoorPreview()
    {
        if (doorPreview != null)
        {
            doorPreview.SetActive(false);
        }
    }

    private void PlaceDoorOnWall(GameObject wall, Vector3 mousePos)
    {
        Debug.Log($"Attempting to place door on {wall.name} at mouse position {mousePos}");

        // Calculate door position
        Vector3 doorPosition = CalculateDoorPositionOnWall(wall, mousePos);
        Debug.Log($"Calculated door position: {doorPosition}");

        // Check if door would intersect with existing doors
        if (WouldDoorIntersectExistingDoors(wall, doorPosition))
        {
            Debug.LogWarning("Cannot place door - would intersect with existing door");
            return;
        }

        // Get wall endpoints and direction for splitting
        Vector3[] wallEndpoints = GetWallEndpoints(wall);
        Vector3 wallStart = wallEndpoints[0];
        Vector3 wallEnd = wallEndpoints[1];
        Vector3 wallDirection = wall.transform.forward;

        // Calculate door boundaries along the wall
        Vector3 doorStart = doorPosition - wallDirection * (doorWidth / 2f);
        Vector3 doorEnd = doorPosition + wallDirection * (doorWidth / 2f);

        // Create door at wall position with proper rotation
        // Door should face perpendicular to the wall direction (reuse existing wallDirection)
        Quaternion doorRotation = Quaternion.LookRotation(wall.transform.right); // Face perpendicular to wall

        GameObject door = Instantiate(doorOpeningPrefab, doorPosition, doorRotation);
        door.SetActive(true);
        door.name = $"Door_on_{wall.name}";

        // Split the original wall into two segments around the door
        SplitWallAroundDoor(wall, wallStart, wallEnd, doorStart, doorEnd);

        Debug.Log($"Successfully placed door: {door.name} and split wall into segments");
    }

    private bool WouldDoorIntersectExistingDoors(GameObject wall, Vector3 doorPosition)
    {
        // Find all existing doors
        GameObject[] existingDoors = GameObject.FindGameObjectsWithTag("Door");

        foreach (GameObject existingDoor in existingDoors)
        {
            // Check if doors are on the same wall or parallel walls
            float distance = Vector3.Distance(doorPosition, existingDoor.transform.position);
            if (distance < doorWidth * 1.5f) // Doors too close
            {
                Debug.Log($"Door too close to existing door {existingDoor.name}: distance = {distance}");
                return true;
            }
        }

        return false;
    }

    private void SplitWallAroundDoor(GameObject originalWall, Vector3 wallStart, Vector3 wallEnd, Vector3 doorStart, Vector3 doorEnd)
    {
        // Calculate the two new wall segments
        float originalWallLength = Vector3.Distance(wallStart, wallEnd);
        float leftSegmentLength = Vector3.Distance(wallStart, doorStart);
        float rightSegmentLength = Vector3.Distance(doorEnd, wallEnd);

        // Only create segments if they're long enough
        bool createLeftSegment = leftSegmentLength > 0.1f;
        bool createRightSegment = rightSegmentLength > 0.1f;

        Debug.Log($"Splitting wall: original length = {originalWallLength}, left = {leftSegmentLength}, right = {rightSegmentLength}");

        if (createLeftSegment)
        {
            // Create left wall segment - full height
            Vector3 leftCenter = (wallStart + doorStart) / 2f;
            leftCenter.y = wallHeight / 2f;

            GameObject leftWall = Instantiate(wallPrefab, leftCenter, originalWall.transform.rotation);
            leftWall.SetActive(true);
            leftWall.name = $"{originalWall.name}_Left";
            leftWall.transform.localScale = new Vector3(wallThickness, wallHeight, leftSegmentLength);

            walls.Add(leftWall);
            Debug.Log($"Created left wall segment: {leftWall.name}");
        }

        if (createRightSegment)
        {
            // Create right wall segment - full height
            Vector3 rightCenter = (doorEnd + wallEnd) / 2f;
            rightCenter.y = wallHeight / 2f;

            GameObject rightWall = Instantiate(wallPrefab, rightCenter, originalWall.transform.rotation);
            rightWall.SetActive(true);
            rightWall.name = $"{originalWall.name}_Right";
            rightWall.transform.localScale = new Vector3(wallThickness, wallHeight, rightSegmentLength);

            walls.Add(rightWall);
            Debug.Log($"Created right wall segment: {rightWall.name}");
        }

        // Create header beam above the door (if there are segments on both sides)
        if (createLeftSegment && createRightSegment)
        {
            CreateDoorHeaderBeam(originalWall, doorStart, doorEnd);
        }

        // Remove original wall from list and destroy it
        walls.Remove(originalWall);
        DestroyImmediate(originalWall);
        Debug.Log("Removed original wall after splitting");
    }

    private void CreateDoorHeaderBeam(GameObject originalWall, Vector3 doorStart, Vector3 doorEnd)
    {
        // Create beam above door opening
        Vector3 beamCenter = (doorStart + doorEnd) / 2f;
        beamCenter.y = doorHeight + 0.1f; // Just above the door

        GameObject headerBeam = Instantiate(wallPrefab, beamCenter, originalWall.transform.rotation);
        headerBeam.SetActive(true);
        headerBeam.name = $"{originalWall.name}_Header";

        float beamLength = Vector3.Distance(doorStart, doorEnd);
        float beamHeight = wallHeight - doorHeight - 0.1f; // Remaining height above door

        if (beamHeight > 0.1f) // Only create beam if there's significant height remaining
        {
            headerBeam.transform.localScale = new Vector3(wallThickness, beamHeight, beamLength);
            walls.Add(headerBeam);
            Debug.Log($"Created door header beam: {headerBeam.name}");
        }
        else
        {
            // If no room for header beam, destroy it
            DestroyImmediate(headerBeam);
            Debug.Log("Door is full height - no header beam needed");
        }
    }

    #endregion

    #region Entrance Creation

    private void HandleEntranceCreation()
    {
        Vector3 mousePos = GetMouseWorldPosition();

        // Find wall under mouse
        GameObject wallUnderMouse = FindWallUnderMouse(mousePos);

        // Update entrance preview (similar to door but different style)
        UpdateEntrancePreview(wallUnderMouse, mousePos);

        if (Input.GetMouseButtonDown(0)) // Left click
        {
            Debug.Log($"Entrance placement click detected at {mousePos}");
            if (wallUnderMouse != null)
            {
                Debug.Log($"Wall found under mouse: {wallUnderMouse.name}");
                PlaceEntranceOnWall(wallUnderMouse, mousePos);
            }
            else
            {
                Debug.LogWarning("No wall found under mouse cursor for entrance placement");

                // Try alternative detection method first
                GameObject alternativeWall = FindWallUnderMouseAlternative(mousePos);
                if (alternativeWall != null)
                {
                    Debug.Log($"Alternative method found wall: {alternativeWall.name}, placing entrance there");
                    PlaceEntranceOnWall(alternativeWall, mousePos);
                }
                else
                {
                    // Let's try a different approach - check nearby walls
                    GameObject nearestWall = FindNearestWall(mousePos);
                    if (nearestWall != null)
                    {
                        Debug.Log($"Found nearest wall: {nearestWall.name}, placing entrance there");
                        PlaceEntranceOnWall(nearestWall, mousePos);
                    }
                    else
                    {
                        Debug.LogWarning("No walls found nearby for entrance placement");
                    }
                }
            }
        }
    }

    private void UpdateEntrancePreview(GameObject wall, Vector3 mousePos)
    {
        if (wall != null)
        {
            ShowEntrancePreview(wall, mousePos);
        }
        else
        {
            HideEntrancePreview();
        }
    }

    private void ShowEntrancePreview(GameObject wall, Vector3 mousePos)
    {
        if (doorPreview == null) return; // Reuse door preview for now

        // Calculate entrance position on the wall
        Vector3 entrancePosition = CalculateDoorPositionOnWall(wall, mousePos);

        // Position and orient the preview - entrance should face perpendicular to wall
        doorPreview.transform.position = entrancePosition;
        doorPreview.transform.rotation = Quaternion.LookRotation(wall.transform.right);

        // Make entrance preview slightly different (maybe different scale or color)
        doorPreview.transform.localScale = new Vector3(0.2f, doorHeight, doorWidth * 1.2f); // Slightly wider
        doorPreview.SetActive(true);
    }

    private void HideEntrancePreview()
    {
        if (doorPreview != null)
        {
            doorPreview.SetActive(false);
        }
    }

    private void PlaceEntranceOnWall(GameObject wall, Vector3 mousePos)
    {
        Debug.Log($"Attempting to place entrance on {wall.name} at mouse position {mousePos}");

        // Calculate entrance position on the wall surface
        Vector3 entrancePosition = CalculateDoorPositionOnWall(wall, mousePos);
        Debug.Log($"Calculated entrance position: {entrancePosition}");

        // Check if there's already an entrance
        GameObject[] existingEntrances = GameObject.FindGameObjectsWithTag("Entrance");
        if (existingEntrances.Length > 0)
        {
            Debug.LogWarning("Building already has an entrance. Replacing existing entrance.");
            foreach (GameObject existingEntrance in existingEntrances)
            {
                DestroyImmediate(existingEntrance);
            }
        }

        // Determine wall orientation based on its scale
        Vector3 wallScale = wall.transform.localScale;
        bool isNorthSouthWall = wallScale.x > wallScale.z; // Wide in X means North/South wall

        Debug.Log($"Wall scale: {wallScale}, isNorthSouthWall: {isNorthSouthWall}");

        // Calculate entrance boundaries and determine how to split the wall
        float entranceWidth = doorWidth * 1.5f;

        // Create entrance with proper rotation
        GameObject entrance = CreateEntrancePrefab();
        entrance.transform.position = entrancePosition;        // Set rotation based on wall orientation
        if (isNorthSouthWall)
        {
            // For North/South walls (extending in X), entrance should face along Z-axis
            entrance.transform.rotation = Quaternion.identity; // Facing forward (positive Z)
        }
        else
        {
            // For East/West walls (extending in Z), entrance should face along X-axis
            entrance.transform.rotation = Quaternion.Euler(0, 90, 0); // Facing right (positive X)
        }

        entrance.SetActive(true);
        entrance.name = "BuildingEntrance";
        entrance.tag = "Entrance";

        Debug.Log($"Placed entrance at {entrance.transform.position} with rotation {entrance.transform.rotation.eulerAngles}");

        // Split the wall properly based on its orientation
        SplitWallForEntrance(wall, entrancePosition, entranceWidth, isNorthSouthWall);

        Debug.Log($"Successfully placed entrance and split wall");
    }

    private void SplitWallForEntrance(GameObject originalWall, Vector3 entrancePosition, float entranceWidth, bool isNorthSouthWall)
    {
        Vector3 wallPos = originalWall.transform.position;
        Vector3 wallScale = originalWall.transform.localScale;
        Quaternion wallRotation = originalWall.transform.rotation;

        // Get the original wall's material to maintain consistency
        Material originalMaterial = originalWall.GetComponent<Renderer>()?.material;

        if (wallPrefab == null)
        {
            Debug.LogError("WallPrefab is null! Cannot create wall segments. Aborting split operation.");
            return;
        }

        if (isNorthSouthWall)
        {
            // Wall extends in X direction, split along X-axis
            float wallLength = wallScale.x; // Corrected: X is the length for North/South walls
            float wallLeft = wallPos.x - wallLength / 2f;
            float wallRight = wallPos.x + wallLength / 2f;

            float entranceLeft = entrancePosition.x - entranceWidth / 2f;
            float entranceRight = entrancePosition.x + entranceWidth / 2f;

            Debug.Log($"North/South wall split: wallLeft={wallLeft}, wallRight={wallRight}, entranceLeft={entranceLeft}, entranceRight={entranceRight}");

            float leftSegmentLength = entranceLeft - wallLeft;
            float rightSegmentLength = wallRight - entranceRight;
            Debug.Log($"Segment lengths: left={leftSegmentLength}, right={rightSegmentLength}");            // Create left segment if there's enough space
            if (leftSegmentLength > 0.5f)
            {
                Vector3 leftCenter = new Vector3(wallLeft + leftSegmentLength / 2f, wallPos.y, wallPos.z);

                GameObject leftWall = Instantiate(wallPrefab, leftCenter, wallRotation);
                leftWall.SetActive(true);
                leftWall.name = $"{originalWall.name}_Left_Entrance";
                leftWall.transform.localScale = new Vector3(leftSegmentLength, wallScale.y, wallScale.z);
                leftWall.tag = "Wall";

                // Apply original material if available, with error checking
                if (originalMaterial != null)
                {
                    Renderer leftRenderer = leftWall.GetComponent<Renderer>();
                    if (leftRenderer != null)
                    {
                        leftRenderer.material = originalMaterial;
                        Debug.Log($"Applied original material to left wall segment");
                    }
                    else
                    {
                        Debug.LogWarning($"Left wall segment {leftWall.name} has no Renderer component - cannot apply material");
                    }
                }

                walls.Add(leftWall);
                Debug.Log($"SUCCESS: Created left wall segment: {leftWall.name}");
            }
            else
            {
                Debug.Log($"LEFT SEGMENT TOO SMALL: {leftSegmentLength} <= 0.5f, not creating");
            }

            // Create right segment if there's enough space
            if (rightSegmentLength > 0.5f)
            {
                Vector3 rightCenter = new Vector3(entranceRight + rightSegmentLength / 2f, wallPos.y, wallPos.z);

                GameObject rightWall = Instantiate(wallPrefab, rightCenter, wallRotation);
                rightWall.SetActive(true);
                rightWall.name = $"{originalWall.name}_Right_Entrance";
                rightWall.transform.localScale = new Vector3(rightSegmentLength, wallScale.y, wallScale.z);
                rightWall.tag = "Wall";

                // Apply original material if available, with error checking
                if (originalMaterial != null)
                {
                    Renderer rightRenderer = rightWall.GetComponent<Renderer>();
                    if (rightRenderer != null)
                    {
                        rightRenderer.material = originalMaterial;
                        Debug.Log($"Applied original material to right wall segment");
                    }
                    else
                    {
                        Debug.LogWarning($"Right wall segment {rightWall.name} has no Renderer component - cannot apply material");
                    }
                }

                walls.Add(rightWall);
                Debug.Log($"SUCCESS: Created right wall segment: {rightWall.name}");
            }
            else
            {
                Debug.Log($"RIGHT SEGMENT TOO SMALL: {rightSegmentLength} <= 0.5f, not creating");
            }
        }
        else
        {
            // Wall extends in Z direction, split along Z-axis
            float wallLength = wallScale.z;
            float wallFront = wallPos.z - wallLength / 2f;
            float wallBack = wallPos.z + wallLength / 2f;

            float entranceFront = entrancePosition.z - entranceWidth / 2f;
            float entranceBack = entrancePosition.z + entranceWidth / 2f;

            Debug.Log($"East/West wall split: wallFront={wallFront}, wallBack={wallBack}, entranceFront={entranceFront}, entranceBack={entranceBack}");

            float frontSegmentLength = entranceFront - wallFront;
            float backSegmentLength = wallBack - entranceBack;
            Debug.Log($"Segment lengths: front={frontSegmentLength}, back={backSegmentLength}");            // Create front segment if there's enough space
            if (frontSegmentLength > 0.5f)
            {
                Vector3 frontCenter = new Vector3(wallPos.x, wallPos.y, wallFront + frontSegmentLength / 2f);

                Debug.Log($"Creating front segment at {frontCenter} with scale ({wallScale.x}, {wallScale.y}, {frontSegmentLength})");
                GameObject frontWall = Instantiate(wallPrefab, frontCenter, wallRotation);
                frontWall.SetActive(true);
                frontWall.name = $"{originalWall.name}_Front_Entrance";
                frontWall.transform.localScale = new Vector3(wallScale.x, wallScale.y, frontSegmentLength);
                frontWall.tag = "Wall";

                // Apply original material if available, with error checking
                if (originalMaterial != null)
                {
                    Renderer frontRenderer = frontWall.GetComponent<Renderer>();
                    if (frontRenderer != null)
                    {
                        frontRenderer.material = originalMaterial;
                        Debug.Log($"Applied original material to front wall segment");
                    }
                    else
                    {
                        Debug.LogWarning($"Front wall segment {frontWall.name} has no Renderer component - cannot apply material");
                    }
                }

                walls.Add(frontWall);
                Debug.Log($"SUCCESS: Created front wall segment: {frontWall.name}");
            }
            else
            {
                Debug.Log($"FRONT SEGMENT TOO SMALL: {frontSegmentLength} <= 0.5f, not creating");
            }

            // Create back segment if there's enough space
            if (backSegmentLength > 0.5f)
            {
                Vector3 backCenter = new Vector3(wallPos.x, wallPos.y, entranceBack + backSegmentLength / 2f);

                Debug.Log($"Creating back segment at {backCenter} with scale ({wallScale.x}, {wallScale.y}, {backSegmentLength})");
                GameObject backWall = Instantiate(wallPrefab, backCenter, wallRotation);
                backWall.SetActive(true);
                backWall.name = $"{originalWall.name}_Back_Entrance";
                backWall.transform.localScale = new Vector3(wallScale.x, wallScale.y, backSegmentLength);
                backWall.tag = "Wall";

                // Apply original material if available, with error checking
                if (originalMaterial != null)
                {
                    Renderer backRenderer = backWall.GetComponent<Renderer>();
                    if (backRenderer != null)
                    {
                        backRenderer.material = originalMaterial;
                        Debug.Log($"Applied original material to back wall segment");
                    }
                    else
                    {
                        Debug.LogWarning($"Back wall segment {backWall.name} has no Renderer component - cannot apply material");
                    }
                }

                walls.Add(backWall);
                Debug.Log($"SUCCESS: Created back wall segment: {backWall.name}");
            }
            else
            {
                Debug.Log($"BACK SEGMENT TOO SMALL: {backSegmentLength} <= 0.5f, not creating");
            }
        }

        // Remove original wall
        Debug.Log($"REMOVING ORIGINAL WALL: {originalWall.name} (active: {originalWall.activeInHierarchy})");
        walls.Remove(originalWall);

        // Try multiple removal methods to ensure it's gone
        originalWall.SetActive(false);
        DestroyImmediate(originalWall);

        Debug.Log("Original wall removal completed");
    }
    private GameObject CreateEntrancePrefab()
    {
        // Create a more elaborate entrance than a regular door
        GameObject entrance = new GameObject("BuildingEntrance");

        // Create entrance frame - wider and more elaborate
        GameObject entranceFrame = new GameObject("EntranceFrame");
        entranceFrame.transform.SetParent(entrance.transform);

        float entranceWidth = doorWidth * 1.5f;

        // Create frame components: left post, right post, top beam, and entrance mat
        CreateEntrancePost(entranceFrame, "LeftPost", new Vector3(-entranceWidth / 2f, doorHeight / 2f, 0f), entranceWidth);
        CreateEntrancePost(entranceFrame, "RightPost", new Vector3(entranceWidth / 2f, doorHeight / 2f, 0f), entranceWidth);
        CreateEntranceBeam(entranceFrame, "TopBeam", new Vector3(0f, doorHeight - 0.1f, 0f), entranceWidth);
        CreateEntranceMat(entranceFrame, "WelcomeMat", new Vector3(0f, 0.05f, 1f), entranceWidth);

        entrance.tag = "Entrance";
        DontDestroyOnLoad(entrance);

        return entrance;
    }

    private void CreateEntrancePost(GameObject parent, string name, Vector3 position, float width)
    {
        GameObject post = GameObject.CreatePrimitive(PrimitiveType.Cube);
        post.name = name;
        post.transform.SetParent(parent.transform);
        post.transform.localPosition = position;
        post.transform.localScale = new Vector3(0.15f, doorHeight, 0.3f); // Slightly thicker than door posts

        Renderer renderer = post.GetComponent<Renderer>();
        Material frameMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));
        frameMaterial.color = new Color(0.3f, 0.15f, 0.05f); // Darker brown for entrance
        frameMaterial.SetFloat("_Metallic", 0.0f);
        frameMaterial.SetFloat("_Smoothness", 0.4f);
        renderer.material = frameMaterial;
    }

    private void CreateEntranceBeam(GameObject parent, string name, Vector3 position, float width)
    {
        GameObject beam = GameObject.CreatePrimitive(PrimitiveType.Cube);
        beam.name = name;
        beam.transform.SetParent(parent.transform);
        beam.transform.localPosition = position;
        beam.transform.localScale = new Vector3(width + 0.3f, 0.3f, 0.3f); // Wider and thicker beam

        Renderer renderer = beam.GetComponent<Renderer>();
        Material frameMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));
        frameMaterial.color = new Color(0.3f, 0.15f, 0.05f); // Darker brown for entrance
        frameMaterial.SetFloat("_Metallic", 0.0f);
        frameMaterial.SetFloat("_Smoothness", 0.4f);
        renderer.material = frameMaterial;
    }

    private void CreateEntranceMat(GameObject parent, string name, Vector3 position, float width)
    {
        GameObject mat = GameObject.CreatePrimitive(PrimitiveType.Cube);
        mat.name = name;
        mat.transform.SetParent(parent.transform);
        mat.transform.localPosition = position;
        mat.transform.localScale = new Vector3(width, 0.1f, 1.5f); // Welcome mat dimensions

        Renderer renderer = mat.GetComponent<Renderer>();
        Material matMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));
        matMaterial.color = new Color(0.8f, 0.2f, 0.2f); // Red welcome mat
        matMaterial.SetFloat("_Metallic", 0.0f);
        matMaterial.SetFloat("_Smoothness", 0.1f); // Rough mat texture
        renderer.material = matMaterial;
    }

    #endregion

    #region Helper Methods

    private void CreatePreviewLine()
    {
        GameObject previewObj = new GameObject("WallPreview");
        previewLine = previewObj.AddComponent<LineRenderer>();

        // Use URP Unlit shader for line renderer (better for simple colored lines)
        previewLine.material = new Material(Shader.Find("Universal Render Pipeline/Unlit"));
        previewLine.material.color = Color.yellow;
        previewLine.startColor = Color.yellow;
        previewLine.endColor = Color.yellow;
        previewLine.startWidth = 0.1f;
        previewLine.endWidth = 0.1f;
        previewLine.positionCount = 2;
        previewLine.enabled = false;
    }

    private void CreateDoorPreview()
    {
        // Create a simple preview object
        doorPreview = GameObject.CreatePrimitive(PrimitiveType.Cube);
        doorPreview.name = "DoorPreview";

        // Make it transparent green
        Renderer renderer = doorPreview.GetComponent<Renderer>();
        Material previewMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));

        // Set up bright green transparent color
        previewMaterial.color = new Color(0f, 1f, 0f, 0.6f); // Bright transparent green

        // Set up transparency properly for URP
        previewMaterial.SetFloat("_Surface", 1); // Set to Transparent
        previewMaterial.SetFloat("_Blend", 0); // Alpha blend
        previewMaterial.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
        previewMaterial.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
        previewMaterial.SetInt("_ZWrite", 0);
        previewMaterial.renderQueue = 3000;

        // Make it non-metallic and smooth for better visibility
        previewMaterial.SetFloat("_Metallic", 0.0f);
        previewMaterial.SetFloat("_Smoothness", 0.9f);

        renderer.material = previewMaterial;

        // Scale to door size - match the actual door dimensions
        doorPreview.transform.localScale = new Vector3(0.2f, doorHeight, doorWidth);
        doorPreview.SetActive(false);

        // Remove collider to prevent interference
        Collider collider = doorPreview.GetComponent<Collider>();
        if (collider != null) Destroy(collider);
    }

    private void CreateSnapIndicator()
    {
        snapIndicator = GameObject.CreatePrimitive(PrimitiveType.Sphere);
        snapIndicator.name = "SnapIndicator";

        // Make it a bright, pulsing indicator
        Renderer renderer = snapIndicator.GetComponent<Renderer>();
        Material indicatorMaterial = new Material(Shader.Find("Universal Render Pipeline/Lit"));
        indicatorMaterial.color = Color.cyan;
        indicatorMaterial.SetFloat("_Metallic", 0.0f);
        indicatorMaterial.SetFloat("_Smoothness", 0.9f);

        // Make it emissive so it glows
        indicatorMaterial.EnableKeyword("_EMISSION");
        indicatorMaterial.SetColor("_EmissionColor", Color.cyan * 2f);

        renderer.material = indicatorMaterial;

        // Scale it to be visible but not too large
        snapIndicator.transform.localScale = Vector3.one * 0.3f;
        snapIndicator.SetActive(false);

        // Remove collider to prevent interference
        Collider collider = snapIndicator.GetComponent<Collider>();
        if (collider != null) Destroy(collider);
    }

    private void HideAllPreviews()
    {
        if (previewLine != null)
        {
            previewLine.enabled = false;
        }

        HideDoorPreview();
        HideSnapIndicator();
    }

    private Vector3 GetMouseWorldPosition()
    {
        Ray ray = playerCamera.ScreenPointToRay(Input.mousePosition);

        // Cast ray onto ground plane (Y = 0)
        if (Physics.Raycast(ray, out RaycastHit hit))
        {
            return hit.point;
        }

        // Fallback: project onto Y = 0 plane
        float distance = -ray.origin.y / ray.direction.y;
        return ray.origin + ray.direction * distance;
    }

    private GameObject FindWallUnderMouse(Vector3 mousePos)
    {
        Ray ray = playerCamera.ScreenPointToRay(Input.mousePosition);

        Debug.Log($"Raycasting for wall detection at mouse position: {Input.mousePosition}");
        Debug.Log($"Ray origin: {ray.origin}, Ray direction: {ray.direction}");
        Debug.Log($"Camera: {playerCamera?.name ?? "NULL"}, Camera position: {playerCamera?.transform.position ?? Vector3.zero}");
        Debug.Log($"Total walls in list: {walls.Count}");

        // Check if we have any walls with colliders
        int wallsWithColliders = 0;
        foreach (GameObject wall in walls)
        {
            if (wall != null)
            {
                Collider[] colliders = wall.GetComponentsInChildren<Collider>();
                if (colliders.Length > 0)
                {
                    wallsWithColliders++;
                    Debug.Log($"Wall {wall.name} has {colliders.Length} colliders");
                }
            }
        }
        Debug.Log($"Walls with colliders: {wallsWithColliders}");

        // Try raycasting with all layers first
        if (Physics.Raycast(ray, out RaycastHit hit, 1000f))
        {
            GameObject hitObj = hit.collider.gameObject;
            Debug.Log($"Raycast hit object: {hitObj.name} on layer {hitObj.layer}");
            Debug.Log($"Hit point: {hit.point}, Hit distance: {hit.distance}");

            // Check if it's one of our walls (could be parent or child)
            GameObject wallToCheck = hitObj;

            // If we hit a child mesh, get the parent
            if (hitObj.name == "WallMesh" && hitObj.transform.parent != null)
            {
                wallToCheck = hitObj.transform.parent.gameObject;
                Debug.Log($"Hit child mesh, checking parent: {wallToCheck.name}");
            }

            if (walls.Contains(wallToCheck))
            {
                Debug.Log($"Hit object is a valid wall: {wallToCheck.name}");
                return wallToCheck;
            }
            else
            {
                Debug.Log($"Hit object is not a wall we created: {wallToCheck.name}");
                // Also check if the hit object has a Wall tag as fallback
                if (hitObj.CompareTag("Wall") || (hitObj.transform.parent != null && hitObj.transform.parent.CompareTag("Wall")))
                {
                    GameObject taggedWall = hitObj.CompareTag("Wall") ? hitObj : hitObj.transform.parent.gameObject;
                    Debug.Log($"Found wall by tag: {taggedWall.name}");
                    return taggedWall;
                }
            }
        }
        else
        {
            Debug.Log("Raycast didn't hit anything - checking for potential issues:");
            Debug.Log($"PlayerCamera null? {playerCamera == null}");
            Debug.Log($"Physics.DefaultRaycastLayers: {Physics.DefaultRaycastLayers}");

            // Try a wider raycast with all layers
            RaycastHit[] hits = Physics.RaycastAll(ray, 1000f);
            Debug.Log($"RaycastAll found {hits.Length} hits");
            for (int i = 0; i < hits.Length; i++)
            {
                Debug.Log($"Hit {i}: {hits[i].collider.gameObject.name} on layer {hits[i].collider.gameObject.layer}");
            }
        }

        return null;
    }

    private GameObject FindWallUnderMouseAlternative(Vector3 worldMousePos)
    {
        // Alternative approach: find the closest wall to the mouse world position
        GameObject closestWall = null;
        float closestDistance = float.MaxValue;
        float maxDistance = 2f; // Maximum distance to consider a wall "under" the mouse

        Debug.Log($"Alternative wall detection at world pos: {worldMousePos}");

        foreach (GameObject wall in walls)
        {
            if (wall == null) continue;

            // Calculate distance from mouse world position to wall center
            float distance = Vector3.Distance(worldMousePos, wall.transform.position);

            // Also check distance to wall bounds
            Bounds wallBounds = GetWallBounds(wall);
            float boundDistance = wallBounds.SqrDistance(worldMousePos);

            Debug.Log($"Wall {wall.name}: center distance = {distance}, bound distance = {Mathf.Sqrt(boundDistance)}");

            if (boundDistance < maxDistance * maxDistance && distance < closestDistance)
            {
                closestDistance = distance;
                closestWall = wall;
            }
        }

        if (closestWall != null)
        {
            Debug.Log($"Alternative method found wall: {closestWall.name} at distance {closestDistance}");
        }
        else
        {
            Debug.Log("Alternative method found no walls nearby");
        }

        return closestWall;
    }

    private Bounds GetWallBounds(GameObject wall)
    {
        Renderer renderer = wall.GetComponentInChildren<Renderer>();
        if (renderer != null)
        {
            return renderer.bounds;
        }

        // Fallback: calculate bounds from transform
        Vector3 scale = wall.transform.localScale;
        return new Bounds(wall.transform.position, scale);
    }

    private GameObject FindNearestWall(Vector3 mousePos)
    {
        GameObject nearestWall = null;
        float nearestDistance = float.MaxValue;

        foreach (GameObject wall in walls)
        {
            if (wall == null) continue;

            // Calculate distance from mouse position to wall
            float distance = Vector3.Distance(mousePos, wall.transform.position);
            if (distance < nearestDistance && distance < 5f) // Within 5 units
            {
                nearestDistance = distance;
                nearestWall = wall;
            }
        }

        if (nearestWall != null)
        {
            Debug.Log($"Found nearest wall: {nearestWall.name} at distance {nearestDistance}");
        }

        return nearestWall;
    }

    private Vector3[] GetWallEndpoints(GameObject wall)
    {
        // Calculate endpoints from wall transform
        Vector3 center = wall.transform.position;
        // With our new rotation, the wall extends along the forward (Z) axis
        Vector3 wallDirection = wall.transform.forward;
        float length = wall.transform.localScale.z; // Z is now the length

        Vector3 start = center - wallDirection * (length / 2f);
        Vector3 end = center + wallDirection * (length / 2f);

        // Ensure Y = 0 for ground-level snapping
        start.y = 0f;
        end.y = 0f;

        return new Vector3[] { start, end };
    }

    private Vector3 CalculateDoorPositionOnWall(GameObject wall, Vector3 mousePos)
    {
        // Project mouse position onto the wall
        Vector3 wallCenter = wall.transform.position;
        Vector3 wallScale = wall.transform.localScale;

        // Use the wall's actual transform directions instead of world axes
        Vector3 wallDirection;
        float wallLength;

        // Determine wall orientation based on scale
        bool isNorthSouthWall = wallScale.x > wallScale.z;

        if (isNorthSouthWall)
        {
            // Wall extends in X direction - use the wall's right vector (local X axis)
            wallDirection = wall.transform.right;
            wallLength = wallScale.x;
        }
        else
        {
            // Wall extends in Z direction - use the wall's forward vector (local Z axis)
            wallDirection = wall.transform.forward;
            wallLength = wallScale.z;
        }

        // Project mouse position onto the wall's direction vector
        Vector3 toMouse = mousePos - wallCenter;
        float projection = Vector3.Dot(toMouse, wallDirection);

        // Clamp to wall bounds
        float clampedProjection = Mathf.Clamp(projection, -wallLength / 2f + doorWidth / 2f, wallLength / 2f - doorWidth / 2f);

        Vector3 doorPos = wallCenter + wallDirection * clampedProjection;
        doorPos.y = 0f; // Set door at ground level

        return doorPos;
    }

    #endregion
}