#nullable enable
using Babushka.scripts.CSharp.GameEntity.LoadSave;
using Newtonsoft.Json.Linq;

namespace Babushka.scripts.CSharp.Common.Inventory;

/// <summary>
/// Represents a virtual object wrapper for an item instance.
/// Can return the containing item or null.
/// </summary>
public class InventorySlot: IJsonSerializable
{
    /// <summary>
    /// The inventory item instance that may or may not be bound to this slot.
    /// </summary>
    public ItemInstance? itemInstance;
    
    /// <summary>
    /// Whether or not this slot is currently occupied by an item instance.
    /// </summary>
    /// <returns></returns>
    public bool IsEmpty()
    {
        return itemInstance == null;
    }

    public void LoadFromJson(JObject json)
    {
        var itemJson = json.Value<JObject>("item");
        if (itemJson != null)
        {
            itemInstance = new ItemInstance();
            itemInstance.LoadFromJson(itemJson);
        }
        else
        {
            itemInstance = null;
        }
    }

    public JObject SaveToJson()
    {
        return new JObject()
        {
            ["item"] = itemInstance?.SaveToJson()
        };
    }
}