using UnityEngine;

namespace Ashwild.Inventory
{
    public enum ItemType
    {
        Material,
        Tool,
        Weapon,
        Consumable
    }

    public enum HarvestType
    {
        None,
        Tree,
        Rock
    }

    [CreateAssetMenu(fileName = "NewItem", menuName = "Items/Item Data")]
    public class ItemData : ScriptableObject
    {
        [Header("Identity")]
        [SerializeField] private string itemName;
        [SerializeField] private Sprite icon;
        [SerializeField] [TextArea] private string description;

        [Header("Stacking")]
        [SerializeField] private bool isStackable = true;
        [SerializeField] private int maxStackSize = 64;

        [Header("Type")]
        [SerializeField] private ItemType itemType;

        [Header("Uses / Durability")]
        [Tooltip("How many times this item can be used before it is depleted (a tool's hits, a food's bites). 0 = no usage tracking — a normal item without a uses bar.")]
        [SerializeField] private int maxUses = 0;
        [Tooltip("When the uses reach 0: checked = the item stays in the inventory, shown red and unusable (repairable tool, refillable container); unchecked = it is destroyed.")]
        [SerializeField] private bool keepWhenDepleted = false;

        [Header("Tool")]
        [SerializeField] private HarvestType harvestType = HarvestType.None;
        [SerializeField] private float toolPower = 1f;

        [Header("Consumable")]
        [SerializeField] private float healthRestore;
        [SerializeField] private float hungerRestore;
        [SerializeField] private float thirstRestore;

        [Header("Cooking")]
        [SerializeField] private ItemData cookedResult;
        [SerializeField] private float cookTime = 10f;

        [Header("Fuel")]
        [SerializeField] private bool isFuel;
        [SerializeField] private float fuelSeconds = 30f;

        [Header("Prefabs")]
        [SerializeField] private GameObject worldPrefab;
        [SerializeField] private GameObject handPrefab;

        public string ItemName => itemName;
        public Sprite Icon => icon;
        public string Description => description;
        public bool IsStackable => isStackable;
        public int MaxStackSize => maxStackSize;
        public ItemType ItemType => itemType;

        public int MaxUses => maxUses;

        /// <summary>
        /// When uses run out: true keeps the item (shown red, unusable until repaired/refilled),
        /// false destroys it. Repairable tools and refillable containers set this true.
        /// </summary>
        public bool KeepWhenDepleted => keepWhenDepleted;

        /// <summary>
        /// Whether this item tracks per-instance uses (a tool's durability, a food's bites). Items
        /// with uses get a slot bar and are treated as non-stackable so each instance keeps its own value.
        /// </summary>
        public bool HasUses => maxUses > 0;

        public HarvestType HarvestType => harvestType;
        public float ToolPower => toolPower;
        public float HealthRestore => healthRestore;
        public float HungerRestore => hungerRestore;
        public float ThirstRestore => thirstRestore;
        public ItemData CookedResult => cookedResult;
        public float CookTime => cookTime;
        public bool IsCookable => cookedResult != null;
        public bool IsFuel => isFuel;
        public float FuelSeconds => fuelSeconds;
        public GameObject WorldPrefab => worldPrefab;
        public GameObject HandPrefab => handPrefab;
    }
}