using UnityEngine;

public class PickupThrow : MonoBehaviour
{
    public Transform holdPoint;
    public float pickupRange = 3f;
    public float throwForce = 10f;

    private Rigidbody heldRb;
    private Transform originalParent;

    void Update()
    {
        // ЛКМ — взяти / відпустити
        if (Input.GetMouseButtonDown(0))
        {
            if (heldRb == null)
                TryPickup();
            else
                Drop(false);
        }

        // ПКМ — кинути
        if (Input.GetMouseButtonDown(1) && heldRb != null)
            Drop(true);
    }

    void TryPickup()
    {
        if (Physics.Raycast(Camera.main.transform.position,
            Camera.main.transform.forward, out RaycastHit hit, pickupRange))
        {
            if (!hit.collider.CompareTag("Pickable")) return;

            heldRb = hit.collider.attachedRigidbody;
            if (heldRb == null) return;

            originalParent = heldRb.transform.parent;

            // Вимикаємо фізику
            heldRb.isKinematic = true;
            heldRb.useGravity = false;

            // Прикріплюємо до руки
            heldRb.transform.SetParent(holdPoint);
            heldRb.transform.localPosition = Vector3.zero;
            heldRb.transform.localRotation = Quaternion.identity;
        }
    }

    void Drop(bool throwIt)
    {
        // Відкріплюємо
        heldRb.transform.SetParent(originalParent);

        // Вмикаємо фізику
        heldRb.isKinematic = false;
        heldRb.useGravity = true;

        if (throwIt)
        {
            heldRb.AddForce(Camera.main.transform.forward * throwForce,
                ForceMode.VelocityChange);
        }

        heldRb = null;
    }
}