using System;
using UnityEngine;
using UnityEngine.EventSystems;

namespace Stary.Evo
{
    public class OnDropEventTrigger: MonoBehaviour, IDropHandler
    {
        public readonly EasyEvent<PointerEventData> OnDropEvent = new EasyEvent<PointerEventData>();
        
        public void OnDrop(PointerEventData eventData)
        {
            OnDropEvent.Trigger(eventData);
        }
    }

    public static class OnDropEventTriggerExtension
    {
        public static IUnRegister OnDropEvent<T>(this T self, Action<PointerEventData> onDrop)
            where T : Component
        {
            return self.GetOrAddComponent<OnDropEventTrigger>().OnDropEvent.Register(onDrop);
        }
        
        public static IUnRegister OnDropEvent(this GameObject self, Action<PointerEventData> onDrop)
        {
            return self.GetOrAddComponent<OnDropEventTrigger>().OnDropEvent.Register(onDrop);
        }
    }
}