using UnityEngine;
using UnityEngine.Events;

public class WorldObject : MonoBehaviour
{
    [Header("Data Template")]
    [Tooltip("The Scriptable Object that defines what this item actually is.")]
    public ObjectData data;

    [Header("Instance State")]
    [Tooltip("How many of this item are in this stack? (e.g. 5 arrows)")]
    public int amount = 1;
    
    [Tooltip("Current health of the object. Automatically set to MaxHealth on start.")]
    public float currentHealth;

    [Header("Custom Events")]
    [Tooltip("What happens when the player interacts with this object? (e.g. Open a door, light a fire)")]
    public UnityEvent onInteract;

    [Tooltip("What happens when the object's health reaches 0? (e.g. Spawn a particle effect before destroying)")]
    public UnityEvent onBreak;

    private void Start()
    {
        // Initialize current health from the Scriptable Object template
        if (data != null && data.isDamagable)
        {
            currentHealth = data.maxHealth;
        }
    }

    /// <summary>
    /// Call this from your weapon scripts or projectiles when they hit this object!
    /// </summary>
    public void TakeDamage(float damageAmount)
    {
        if (data == null || !data.isDamagable) return;

        currentHealth -= damageAmount;
        Debug.Log($"{data.objectName} took {damageAmount} damage! Health remaining: {currentHealth}");

        if (currentHealth <= 0)
        {
            BreakObject();
        }
    }

    private void BreakObject()
    {
        Debug.Log($"{data.objectName} has broken!");
        
        // Fire off any custom effects defined in the inspector (like spawning wood splinters)
        onBreak?.Invoke();
        
        // Destroy the object
        Destroy(gameObject);
    }

    /// <summary>
    /// Call this when the player aims at the object and presses the Interact key (e.g. 'E')
    /// </summary>
    public void Interact()
    {
        if (data == null || !data.isInteractable) return;

        Debug.Log($"Player interacted with {data.objectName}.");
        
        // Fires off custom logic (e.g. calling a script to open a door, or turning on a Torch's light component)
        onInteract?.Invoke();
    }

    /// <summary>
    /// Call this when the player walks over the item or picks it up
    /// </summary>
    public void Pickup()
    {
        if (data == null || !data.isPickupAble) return;

        Debug.Log($"Picked up {amount}x {data.objectName} (Value: {data.valueInGold * amount}g)");
        
        // Here you would add the item to your future Inventory script
        // e.g., InventoryManager.Instance.AddItem(data, amount);
        
        // Remove the object from the ground
        Destroy(gameObject);
    }
}