using DG.Tweening;
using UnityEngine;

public class PushableButton : MonoBehaviour
{
    public delegate void OnButtonPressedDelegate();
    public event OnButtonPressedDelegate OnButtonPressed;


    public bool startDown;
    public Transform movableParts;
    public float moveDuration = 0.25f;

    public Transform wire;
    public Material wireActiveMaterial;
    public Material wireInactiveMaterial;

    private float upPositionY;
    private float downPositionY;
    private bool isButtonDown;

    private void Awake()
    {
        upPositionY = movableParts.localPosition.y;
        downPositionY = movableParts.localPosition.y - 0.1f;
        isButtonDown = false;
    }

    // Start is called before the first frame update
    void Start()
    {
        if (startDown)
        {
            // Dont call Activate, we dont want to change wire material here
            movableParts.DOLocalMoveY(downPositionY, moveDuration);
            isButtonDown = true;
        }
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    private void OnCollisionEnter(Collision collision)
    {
        if (!isButtonDown && collision.gameObject.tag.EndsWith("Hand"))
        {
            Activate();
            OnButtonPressed?.Invoke();
        }
    }

    private void Activate()
    {
        movableParts.DOLocalMoveY(downPositionY, moveDuration);
        isButtonDown = true;

        foreach (MeshRenderer meshRenderer in wire.GetComponentsInChildren<MeshRenderer>())
        {
            meshRenderer.material = wireActiveMaterial;
        }
    }

    public void Deactivate()
    {
        movableParts.DOLocalMoveY(upPositionY, moveDuration);
        isButtonDown = false;

        foreach (MeshRenderer meshRenderer in wire.GetComponentsInChildren<MeshRenderer>())
        {
            meshRenderer.material = wireInactiveMaterial;
        }
    }
}