using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MusicBox : MonoBehaviour
{
    public Transform handleTransform;  // Reference to the handle's Transform component
    public AudioSource musicBoxAudio;  // Reference to the AudioSource component

    public float rotationSpeed = 50f;  // Speed at which the handle rotates
    public float maxVolume = 1f;       // Maximum volume of the music

    private bool isRotatingForward = false;
    private bool isRotatingBackward = false;

    [SerializeField] float currentTimeToOpenTopOfMusicBox;
    public float targetTimeToOpenTopOfMusicBox = 5f;

    private float lastTime;
    private float lastAngle;
    public float circularThreshold = 5.0f;
    public bool isRotating;
    public bool isUsingMusicBox;

    [SerializeField] EventTrigger eventTrigger;


    [Header("UI")]
    public GameObject musicBoxMoveHandleIndication;

    //void DetectCircularMovement()
    //{
    //    float horizontal = Input.GetAxis("Horizontal");
    //    float vertical = Input.GetAxis("Vertical");

    //    Vector2 movementInput = new Vector2(horizontal, vertical);

    //    // Check if movement has a constant magnitude
    //    float magnitude = movementInput.magnitude;
    //    if (Mathf.Approximately(magnitude, 1.0f))
    //    {
    //        // Check if movement is in a circular pattern
    //        float angle = Mathf.Atan2(vertical, horizontal) * Mathf.Rad2Deg;
    //        if (angle < 0)
    //        {
    //            angle += 360;
    //        }
    //        float deltaTime = Time.time - lastTime;
    //        float angleChange = Mathf.DeltaAngle(lastAngle, angle);

    //        // Check if the angle is changing smoothly (within a certain threshold)
    //        if (Mathf.Abs(angleChange) < circularThreshold)
    //        {
    //            // Detect direction based on the change in angle
    //            float angularSpeed = angleChange / deltaTime;

    //            if (angularSpeed > 0)
    //            {
    //                Debug.Log("Circular Movement to the right detected");
    //            }
    //            else if (angularSpeed < 0)
    //            {
    //                Debug.Log("Circular Movement to the left detected");
    //            }
    //        }

    //        lastAngle = angle;
    //        lastTime = Time.time;
    //    }
    //}

    //void Update()
    //{
    //    //DetectCircularMovement();

    //    // Check for input to rotate the handle forward
    //    if (Input.GetKey(KeyCode.W))
    //    {
    //        isRotatingForward = true;
    //        isRotatingBackward = false;
    //        isRotating = true;
    //    }
    //    else if (Input.GetKey(KeyCode.S))  // Check for input to rotate the handle backward
    //    {
    //        isRotatingForward = false;
    //        isRotatingBackward = true;
    //        isRotating = true;
    //    }
    //    else
    //    {
    //        isRotatingForward = false;
    //        isRotatingBackward = false;
    //        isRotating = false;
    //    }

    //    // Rotate the handle based on input
    //    RotateHandle();

    //    // Check for input to play music
    //    if (/*Input.GetKey(KeyCode.W) || Input.GetKey(KeyCode.S) ||*/ isRotating)
    //    {
    //        // Fade in music volume
    //        if (musicBoxAudio.volume < maxVolume)
    //        {
    //            musicBoxAudio.volume += Time.deltaTime;
    //        }

    //        // Play music if not already playing
    //        if (!musicBoxAudio.isPlaying)
    //        {
    //            musicBoxAudio.Play();
    //        }
    //    }
    //    else
    //    {
    //        // Fade out music volume
    //        if (musicBoxAudio.volume > 0f)
    //        {
    //            musicBoxAudio.volume -= Time.deltaTime;
    //        }
    //        else
    //        {
    //            // Stop playing music when volume reaches zero
    //            musicBoxAudio.Stop();
    //        }
    //    }
    //}

    public void UseMusicBox() 
    {
        isUsingMusicBox = true;
        musicBoxMoveHandleIndication.gameObject.SetActive(true);
        StartCoroutine(UpdateMusicBox());
    }

    public void IsNoLongerUsingMusicBox() 
    {
        musicBoxAudio.Stop(); //Change to make it fade out.
        isUsingMusicBox = false;
        musicBoxMoveHandleIndication.gameObject.SetActive(false);
    }

    //void Update()
    //{
    //    // Rotate the handle based on input
    //    RotateHandle();
    //}

    IEnumerator UpdateMusicBox() 
    {
        while (isUsingMusicBox)
        {
            #region Input
            // Check for input to rotate the handle forward
            float MoveHandleForwardControllerInput = Input.GetAxis("RightTrigger");
            float MoveHandleBackwardControllerInput = Input.GetAxis("LeftTrigger");

            if (Input.GetKey(KeyCode.W) || MoveHandleForwardControllerInput < 0)
            {
                isRotatingForward = true;
                isRotatingBackward = false;
                isRotating = true;
            }
            else if (Input.GetKey(KeyCode.S) || MoveHandleBackwardControllerInput < 0)  // Check for input to rotate the handle backward
            {
                isRotatingForward = false;
                isRotatingBackward = true;
                isRotating = true;
            }
            else
            {
                isRotatingForward = false;
                isRotatingBackward = false;
                isRotating = false;
            }
            #endregion

            // Rotate the handle based on input
            RotateHandle();

            #region Music
            // Check for input to play music
            if (isRotating)
            {
                if (currentTimeToOpenTopOfMusicBox <= targetTimeToOpenTopOfMusicBox) 
                {
                    currentTimeToOpenTopOfMusicBox += Time.unscaledDeltaTime;
                }

                // Fade in music volume
                if (musicBoxAudio.volume < maxVolume)
                {
                    musicBoxAudio.volume += Time.unscaledDeltaTime;
                }

                // Play music if not already playing
                if (!musicBoxAudio.isPlaying)
                {
                    musicBoxAudio.Play();
                }
            }
            else
            {
                // Fade out music volume
                if (musicBoxAudio.volume > 0f)
                {
                    musicBoxAudio.volume -= Time.unscaledDeltaTime;
                }
                else
                {
                    // Stop playing music when volume reaches zero
                    currentTimeToOpenTopOfMusicBox = 0f;
                    musicBoxAudio.Stop();
                }
            }

            if (currentTimeToOpenTopOfMusicBox >= targetTimeToOpenTopOfMusicBox)
            {
                if (isUsingMusicBox)
                {
                    eventTrigger.Invoke();
                    musicBoxAudio.Stop();
                    musicBoxMoveHandleIndication.gameObject.SetActive(false);
                    isUsingMusicBox = false;
                }
            }
            #endregion
            yield return null;
        }
    }

    void RotateHandle()
    {
        // Rotate the handle based on input and rotation speed
        if (isRotatingForward)
        {
            handleTransform.Rotate(Vector3.back * rotationSpeed * Time.unscaledDeltaTime);
            print("Is rotating handle forward");
        }
        else if (isRotatingBackward)
        {
            handleTransform.Rotate(Vector3.forward * rotationSpeed * Time.unscaledDeltaTime);
            print("Is rotating handle backwards");
        }
    }
}