using UnityEngine;
using UnityEngine.Events;

/// <summary>
/// 미니게임 성공, 퀘스트 완료, 버튼 이벤트 등에서 아이템을 지급할 때 사용합니다.
/// 예: 낚시 성공 이벤트 -> ItemReward.GiveReward()
/// </summary>
[DisallowMultipleComponent]
public class ItemReward : MonoBehaviour
{
    [Header("Reference")]
    [SerializeField] private InventoryManager inventoryManager;

    [Header("Reward")]
    [SerializeField] private InventoryItemType rewardItemType = InventoryItemType.Fish;
    [SerializeField] private int rewardAmount = 1;
    [SerializeField] private bool giveOnlyOnce = false;

    [Header("Auto Find")]
    [SerializeField] private bool autoFindManager = true;

    [Header("Events")]
    public UnityEvent onRewardGiven;
    public UnityEvent onRewardAlreadyGiven;

    [Header("Debug")]
    [SerializeField] private bool showDebugLog = true;

    private bool alreadyGiven;

    private void Awake()
    {
        if (inventoryManager == null && autoFindManager)
            inventoryManager = FindFirstObjectByType<InventoryManager>();
    }

    public void GiveReward()
    {
        if (giveOnlyOnce && alreadyGiven)
        {
            onRewardAlreadyGiven?.Invoke();

            if (showDebugLog)
                Debug.Log("[ItemReward] 이미 지급된 아이템 보상입니다.");

            return;
        }

        if (inventoryManager == null)
        {
            Debug.LogWarning("[ItemReward] InventoryManager가 연결되지 않았습니다.");
            return;
        }

        int amount = Mathf.Max(1, rewardAmount);
        inventoryManager.AddItem(rewardItemType, amount);
        alreadyGiven = true;

        onRewardGiven?.Invoke();

        if (showDebugLog)
            Debug.Log($"[ItemReward] {rewardItemType} +{amount}");
    }

    public void GiveRewardAmount(int amount)
    {
        rewardAmount = Mathf.Max(1, amount);
        GiveReward();
    }

    public void ResetRewardState()
    {
        alreadyGiven = false;
    }

    public void SetRewardItemType(InventoryItemType itemType)
    {
        rewardItemType = itemType;
    }

    public void SetInventoryManager(InventoryManager manager)
    {
        inventoryManager = manager;
    }
}