using Godot;
using System;
using Gamesmiths.Forge.Godot.Resources.Abilities;

[Tool, GlobalClass]
public partial class SelectedAbility : Control
{
    [Signal] public delegate void AbilityRemovedEventHandler(ForgeAbilityBehavior ability);
    
    private ForgeAbilityBehavior? _ability;
    [Export]
    public ForgeAbilityBehavior? Ability
    {
        get => _ability;
        set
        {
            _ability = value;
            if (_ability == null || !Engine.IsEditorHint()) return;
            AbilityUpdated();
        }
    }

    private TextureRect? _icon;
    private Label? _title;
    private Button? _remove;

    public override void _Ready()
    {
        _icon = GetNode<TextureRect>("%Icon");
        _title = GetNode<Label>("%Title");
        _remove = GetNode<Button>("%Remove");
        
        _remove.Pressed += () => EmitSignalAbilityRemoved(Ability);
    }

    public void SetAbility(ForgeAbilityBehavior ability)
    {
        _ability = ability;
        AbilityUpdated();
    }

    public void AbilityUpdated()
    {
        var icon = _icon ?? GetNode<TextureRect>("%Icon");
        var title = _title ?? GetNode<Label>("%Title");
        if (icon == null || title == null) return;
        if (_ability == null)
        {
            icon.Texture = null;
            title.Text = "";
            return;
        }
        icon.Texture = _ability.Icon;
        title.Text = _ability.Name;
    }
}