using System;
using UnityEngine;
using UnityEngine.EventSystems;

namespace Stary.Evo
{
    public class OnScrollEventTrigger: MonoBehaviour, IScrollHandler
    {
        public readonly EasyEvent<PointerEventData> OnScrollEvent = new EasyEvent<PointerEventData>();
        
        public void OnScroll(PointerEventData eventData)
        {
            OnScrollEvent.Trigger(eventData);
        }
    }

    public static class OnScrollEventTriggerExtension
    {
        public static IUnRegister OnScrollEvent<T>(this T self, Action<PointerEventData> onScroll)
            where T : Component
        {
            return self.GetOrAddComponent<OnScrollEventTrigger>().OnScrollEvent.Register(onScroll);
        }
        
        public static IUnRegister OnScrollEvent(this GameObject self, Action<PointerEventData> onScroll)
        {
            return self.GetOrAddComponent<OnScrollEventTrigger>().OnScrollEvent.Register(onScroll);
        }
    }
}