using UnityEngine;

public class CartGrabAndHold : MonoBehaviour
{
    public float holdDistance = 1.5f;     // Distance in front of player
    public float moveSpeed = 5f;          // How fast the cart follows
    public float floatHeight = 0.5f;      // Height above the ground to simulate wheels

    private bool isHolding = false;       // Whether the cart is currently held
    private Transform player;             // The transform of the player
    private Rigidbody rb;                 // Cart's rigidbody

    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    // Called by PlayerGrabber when grabbing
    public void GrabCart(Transform playerTransform)
    {
        isHolding = true;
        player = playerTransform;
        rb.isKinematic = true;  // Disable physics for smooth movement
    }

    // Called by PlayerGrabber when releasing
    public void ReleaseCart()
    {
        isHolding = false;
        rb.isKinematic = false; // Re-enable physics
        player = null;
    }

    // Used by PlayerGrabber to keep cart following the player
    public void HoldCart()
    {
        if (!isHolding || player == null) return;

        // Target position is in front of the player on X/Z, floating above ground
        Vector3 targetPosition = player.position + player.forward * holdDistance;
        targetPosition.y = floatHeight;

        // Smoothly move cart toward target
        transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * moveSpeed);

        // Face the same direction as the player
        transform.rotation = Quaternion.LookRotation(player.forward);
    }

    public bool IsHolding()
    {
        return isHolding;
    }
}