using UnityEngine;
using Ashwild.Inventory;

namespace Ashwild.Crafting
{
    /// <summary>
    /// Authoring data for one craftable result: what it produces, what it costs, and where it can be
    /// crafted. Pure data — the craft itself is performed by CraftingManager, which owns the player
    /// and discovery rules on top of what is declared here.
    /// </summary>
    [CreateAssetMenu(fileName = "NewRecipe", menuName = "Items/Crafting Recipe")]
    public class CraftingRecipe : ScriptableObject
    {
        [Header("Result")]
        [SerializeField] private string recipeName;
        [SerializeField] private ItemData resultItem;
        [SerializeField] private int resultQuantity = 1;

        [Header("Station")]
        [Tooltip("None = craftable bare-handed AND on every station. Any other value restricts this recipe to that station.")]
        [SerializeField] private CraftingStationType requiredStation = CraftingStationType.None;

        [Header("Ingredients")]
        [SerializeField] private CraftingIngredient[] ingredients;

        public string RecipeName => recipeName;
        public Sprite Icon => resultItem != null ? resultItem.Icon : null;
        public ItemData ResultItem => resultItem;
        public int ResultQuantity => resultQuantity;
        public CraftingIngredient[] Ingredients => ingredients;

        /// <summary>
        /// The station this recipe must be crafted on, or <see cref="CraftingStationType.None"/> when it
        /// needs none.
        /// </summary>
        public CraftingStationType RequiredStation => requiredStation;

        /// <summary>
        /// Whether the given inventory holds enough of every ingredient to craft this recipe the given
        /// number of times. Purely a resource check — discovery and station rules are enforced by
        /// CraftingManager on top of it.
        /// </summary>
        public bool CanCraft(PlayerInventory inventory, int count = 1)
        {
            for (int i = 0; i < ingredients.Length; i++)
            {
                if (!inventory.HasItem(ingredients[i].item, ingredients[i].quantity * count))
                    return false;
            }
            return true;
        }
    }
}