using UnityEngine;
using UnityEngine.Events;

/// <summary>
/// An interactable item pickup script. When Left-Clicked, it invokes pickup events
/// and destroys or deactivates the world object.
/// </summary>
public class PickupItem : MonoBehaviour, IInteractable
{
    [Header("Item Details")]
    [Tooltip("Item name or identifier.")]
    [SerializeField] private string itemName = "Key";

    [Tooltip("Action text shown in prompt (e.g. 'Pick up Key').")]
    [SerializeField] private string promptAction = "Pick up";

    [Header("Audio / FX")]
    [SerializeField] private AudioClip pickupSound;
    [SerializeField] private GameObject pickupEffectPrefab;

    [Header("Events")]
    [Tooltip("Event invoked with the item name when picked up.")]
    [SerializeField] private UnityEvent<string> onPickedUpWithName;

    [Tooltip("Event invoked passing the player GameObject.")]
    [SerializeField] private UnityEvent<GameObject> onPickedUpByPlayer;

    [Header("Options")]
    [Tooltip("If true, destroys the GameObject upon pickup. If false, simply deactivates it.")]
    [SerializeField] private bool destroyOnPickup = true;

    public void Interact(GameObject interactor)
    {
        // Play sound at position if available
        if (pickupSound != null)
        {
            AudioSource.PlayClipAtPoint(pickupSound, transform.position);
        }

        // Spawn visual effect if assigned
        if (pickupEffectPrefab != null)
        {
            Instantiate(pickupEffectPrefab, transform.position, Quaternion.identity);
        }

        onPickedUpWithName?.Invoke(itemName);
        onPickedUpByPlayer?.Invoke(interactor);

        Debug.Log($"[PickupItem] Picked up: {itemName}");

        if (destroyOnPickup)
        {
            Destroy(gameObject);
        }
        else
        {
            gameObject.SetActive(false);
        }
    }

    public string GetPrompt()
    {
        return $"{promptAction} {itemName}";
    }
}