using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Serialization;

namespace Inventory
{
    public enum ItemType
    {
        Resource,   // 资源（不可直接使用）
        Consumable, // 消耗品（吃/喝/用）
        Equipment,  // 装备（平板、手电筒、武器）
        Tool        // 工具（斧头，主要用于交互）
    }

    [CreateAssetMenu(menuName = "Inventory/Item Data")]
    public class ItemData : ScriptableObject
    {
        [System.Serializable]
        public class SpecialUseUIPage
        {
            [TextArea(2, 8)] public string text;
        }

        public string id;
        public string displayName;
        [TextArea(3, 10)] public string description;
        public Sprite icon;
        public GameObject pickupPrefab;    // 掉落/生成在世界中的物体预设体
        public GameObject handModelPrefab; // 手持时的模型预设体
        
        [Header("Usage Settings")]
        public ItemType itemType;       // 物品类型
        public ItemData consumedResult; // 消耗后获得的物品（为空则直接消失）

        [Header("Vitals Effects (Consumable)")]
        [FormerlySerializedAs("healthDelta")] public float thirstDelta;
        public float hungerDelta;
        public float sanityDelta;
        
        public bool isStackable;
        public int maxStackSize = 1;

        [Header("Hold Settings")]
        [Tooltip("是否使用自定义手持位置/旋转")]
        public bool useCustomHoldSettings;
        public Vector3 holdPositionOffset;
        public Vector3 holdRotationOffset;
        public Vector3 holdScale = Vector3.one;

        [Header("Special Use UI")]
        public bool showSpecialUseUI;
        [TextArea(2, 8)] public string specialUseUIText;
        public Sprite specialUseSprite;
        public bool useSpecialUseUIPages;
        public List<SpecialUseUIPage> specialUseUIPages = new List<SpecialUseUIPage>();
    }
}