Need to rotate an object towards mouse click

[Ben555]

void Start()
{
    targetPosition = transform.position;
    plane = new Plane(Vector3.up, new Vector3(0, height, 0));
}

void Update()
{
    if (Input.GetMouseButtonDown(0))
    {
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        if (plane.Raycast(ray, out float distance))
        {
            targetPosition = ray.GetPoint(distance);
        }
    }

    float distanceToDestination = Vector3.Distance(transform.position, targetPosition);
    if (distanceToDestination > (Time.deltaTime * speed))
    { 
        transform.position += (targetPosition - transform.position).normalized * speed * Time.deltaTime;
    }
    else
    { 
        transform.position = targetPosition;
    }
}

So far it moves towards mouse click, but I would like it to rotate first. I would think if I attach an empty (which represents the front of the Object) and then it rotates towards where the mouse was clicked. It also needs to stay at a height of y = 40 and rotate only on the y axis.

[ArminAhmadi]

See if this helps.

private Vector3 targetPosition;
private Plane plane;
public float moveSpeed = 3f;
public float turnSpeed = 3f;
public float angleLimit = 5f;
public float height = 1f;
public bool waitForRotation = true;

private void Start()
{
    targetPosition = transform.position;
    plane = new Plane(Vector3.up, new Vector3(0, height, 0));
}

private void Update()
{
    if (Input.GetMouseButtonDown(0))
    {
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        if (plane.Raycast(ray, out float distance))
        {
            targetPosition = ray.GetPoint(distance);
        }
    }
    if(targetPosition != transform.position)
    {
        Quaternion targetRotation = Quaternion.LookRotation(targetPosition - transform.position);
        transform.rotation = Quaternion.Slerp(transform.rotation, targetRotation, turnSpeed * Time.deltaTime);
        if (!waitForRotation || Quaternion.Angle(targetRotation, transform.rotation) < angleLimit)
        {
            float distanceToDestination = Vector3.Distance(transform.position, targetPosition);
            if (distanceToDestination > (Time.deltaTime * moveSpeed))
            {
                transform.position += (targetPosition - transform.position).normalized * moveSpeed * Time.deltaTime;
            }
            else
            {
                transform.position = targetPosition;
            }
        }
    }
}