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

public class ShelfNudge : MonoBehaviour
{
    [SerializeField] private float _nudgeForce = 1f;
    [SerializeField] private float _waitTime = 1.5f;

    private bool _isWaiting = false;
    private void OnTriggerEnter(Collider other)
    {
        if (other.CompareTag("Target") && !_isWaiting)
            StartCoroutine(NudgeIfStuck(other.GetComponent<Rigidbody>()));
    }

    private System.Collections.IEnumerator NudgeIfStuck(Rigidbody rb)
    {
        if (rb == null) { _isWaiting = false; yield break; }
        _isWaiting = true;
        yield return new WaitForSeconds(_waitTime);

        if (rb != null && rb.velocity.magnitude < 0.01f)
        {
            rb.WakeUp();
            Vector3 shelfNormal = transform.parent.up;
            Vector3 gravity = Vector3.down;
            Vector3 slideDirection = gravity - Vector3.Dot(gravity, shelfNormal) * shelfNormal;
            slideDirection.Normalize();

            float timer = 0f;
            while (timer < 1f && rb != null && rb.velocity.magnitude < 0.5f)
            {
                rb.AddForce(slideDirection * _nudgeForce, ForceMode.Force);
                timer += Time.deltaTime;
                yield return null;
            }
        }
        _isWaiting = false;
    }
}