using Sandbox;
using Sandbox.UI;

namespace Sasalka;

public class InventoryItem : Component
{
	[Property] public BaseItemDefinition Definition { get; set; }
	[Sync, Property] public int Count { get; set; } = 1;
	[Sync] public bool Equipped { get; set; } = false;

	protected override void OnStart()
	{
		if ( GameObject.Components.TryGet<PickupItem>( out var item ) )
		{
			string itemName = Definition?.Name;

			if ( string.IsNullOrEmpty( itemName ) )
			{
				item.Label = "Unknown Item";
			}
			else
			{
				item.Label = Count > 1
					? $"{itemName} x{Count}"
					: itemName;
			}
		}
	}

	public bool CanStackWith( InventoryItem other )
	{
		if ( other == null || Definition == null || other.Definition == null )
			return false;

		return Definition == other.Definition && Definition.MaxCount > 1;
	}

	public bool CanAddCount( int amount )
	{
		if ( Definition == null )
			return false;

		return Count + amount <= Definition.MaxCount;
	}

	public bool TryAddCount( int amount )
	{
		if ( !CanAddCount( amount ) )
			return false;

		Count += amount;
		return true;
	}

	public bool TryRemoveCount( int amount )
	{
		if ( Count < amount )
			return false;

		Count -= amount;
		return true;
	}

	public InventoryItem Clone()
	{
		var clone = new InventoryItem { Definition = Definition, Count = Count, Equipped = false };

		return clone;
	}

	/// <summary>
	/// Виртуальный метод для экипировки предмета
	/// </summary>
	public virtual void OnEquipped()
	{
		Equipped = true;
	}

	/// <summary>
	/// Виртуальный метод для снятия предмета
	/// </summary>
	public virtual void OnUnEquipped()
	{
		Equipped = false;
	}

	public override string ToString()
	{
		return $"{Definition?.Name ?? "Unknown"} x{Count}";
	}
}