GameJamDungeon/Zennysoft.Game.Ma/src/ui/inventory_menu/ItemSlot.cs

using Chickensoft.AutoInject;
using Chickensoft.Collections;
using Chickensoft.Introspection;
using Godot;
using System;
using Zennysoft.Game.Abstractions;
using Zennysoft.Game.Implementation;
using Zennysoft.Ma.Adapter;

namespace Zennysoft.Game.Ma;

[Meta(typeof(IAutoNode))]
public partial class ItemSlot : Button, IItemSlot
{
  public override void _Notification(int what) => this.Notify(what);

  [Dependency] private IPlayer _player => this.DependOn<IPlayer>();

  [Node] public Label Equipped { get; set; } = default!;

  [Node] public TextureRect ItemTexture { get; set; } = default!;

  public AutoProp<InventoryItem> Item { get; } = new AutoProp<InventoryItem>(default);

  public event Action<IItemSlot> ItemPressed;

  public event Action<IItemSlot> ItemSelected;

  public bool IsSelected { get; set; } = false;

  public void OnResolved()
  {
    Item.Changed += Item_Changed;
    FocusEntered += ItemSlot_FocusEntered;
    Pressed += ItemSlot_Pressed;
  }

  public void SetItemEquipmentStatus(bool isEquipped)
  {
    if (isEquipped)
      Equipped.Text = "E";
    else
      Equipped.Text = string.Empty;
  }

  private void ItemSlot_FocusEntered() => ItemSelected?.Invoke(this);

  private void ItemSlot_Pressed()
  {
    if (Item.Value == null)
      return;

    ItemPressed?.Invoke(this);
  }

  private void Item_Changed(InventoryItem obj)
  {
    if (obj == null)
      return;

    Text = obj.ItemName;
    ItemTexture.Texture = obj.GetTexture();

    if (Item.Value is EquipableItem equipableItem && _player.EquipmentComponent.IsItemEquipped(equipableItem))
    {
      Equipped.Text = "E";
    }
    else
      Equipped.Text = string.Empty;
  }
}