Traveller/scripts/item/SingleItemStack.cs

using System;

using ColdMint.scripts.inventory;

using Godot;

namespace ColdMint.scripts.item;

/// <summary>
/// <para>Item stack of single item</para>
/// </summary>
//maybe we'd move this into inventory namespace
public class SingleItemStack(IItem item) : IItemStack
{
    public IItem Item { get; init; } = item;

    public string Id => Item.Id;
    public int MaxQuantity => 1;
    public int Quantity { get; set; } = 1;
    public Texture2D Icon => Item.Icon;
    public string Name => Item.Name;
    public string? Description => Item.Description;

    public bool CanAddItem(IItem item) => false;

    public bool AddItem(IItem item) => false;

    public int CanTakeFrom(IItemStack itemStack) => 0;

    public bool TakeFrom(IItemStack itemStack) => false;

    public IItem? GetItem()
    {
        return Quantity == 1 ? Item : null;
    }

    public IItem? PickItem()
    {
        Quantity = 0;
        return Item;
    }

    public IItemStack? PickItems(int value)
    {
        if (value == 0) return null;
        else
        {
            Quantity = 0;
            return new SingleItemStack(Item);
        }
    }

    public int RemoveItem(int number)
    {
        if (number == 0) return 0;
        Quantity = 0;
        Item.Destroy();
        return Math.Max(number - 1, 0);
    }

    public void ClearStack()
    {
        RemoveItem(1);
    }
}