calculating player rotation direction

so, I've been trying to calculate the rotation direction of the player using coroutines and have run into some issues after doing some research... I'm new to using these, and know the issues are with improper setup of the code itself. what i'm hoping is you can see what I've done improperly...

thank you in advance!!

 public enum playerTrans { Left, Right, Idle }
 private bool continuePlayerRotationCalculation = false;
 
  void Start()
     {
         StartCoroutine(PlayerRotationCalculator(transform));
     }
 
   void DoStartPlayerRotationCalculation()
         {
             bool ContinuePlayerRotationCalculation = false;
 
         IEnumerator PlayerRotationCalculator(Transform transform.rotation);
         {
             yield return null;
 
             ContinuePlayerRotationCalculation = true;
 
             float oldYAngle = 0;
             float newYAngle = 0;
             bool isIdle = false;
 
             oldYAngle = Mathf.Abs(transform.rotation.eulerAngles.y);
 
             while (ContinuePlayerRotationCalculation == true)
             {
                 newYAngle = Mathf.Abs(transform.rotation.eulerAngles.y);
 
                 if (oldYAngle < newYAngle)
                 {
                     isIdle = false;
                     oldYAngle = newYAngle;
                     Debug.Log("Left");
 
                     anim.SetBool("isTurningLeft", true);
                     anim.SetBool("isTurningRight", false);
                 }
                 else if (oldYAngle > newYAngle)
                 {
                     isIdle = false;
                     oldYAngle = newYAngle;
                     Debug.Log("Right");
 
                     anim.SetBool("isTurningLeft", false);
                     anim.SetBool("isTurningRight", true);
                 }
                 else if (!isIdle)
                 {
                     isIdle = true;
                     oldYAngle = newYAngle;
                     Debug.Log("Idle");
                 }
 
                 yield return null;
             }
         }
     }
 
     void DoStopPlayerRotationCalculation()
     {
         continuePlayerRotationCalculation = false;
     }