using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace AlicizaX.UI
{
    [DisallowMultipleComponent]
    public sealed class RecyclerNavigationBridge : Selectable, ISelectHandler, IMoveHandler, ISubmitHandler
    {
        [SerializeField] private MoveDirection defaultEntryDirection = MoveDirection.Down;

        private RecyclerView recyclerView;

        protected override void Awake()
        {
            base.Awake();
            transition = Transition.None;
            Navigation navigationConfig = navigation;
            navigationConfig.mode = Navigation.Mode.None;
            navigation = navigationConfig;
            recyclerView = GetComponent<RecyclerView>();
        }

        public override void OnSelect(BaseEventData eventData)
        {
            base.OnSelect(eventData);
            TryEnter(defaultEntryDirection);
        }

        public override void OnMove(AxisEventData eventData)
        {
            if (!TryEnter(eventData.moveDir))
            {
                base.OnMove(eventData);
            }
        }

        public void OnSubmit(BaseEventData eventData)
        {
            TryEnter(defaultEntryDirection);
        }

        private bool TryEnter(MoveDirection direction)
        {
            recyclerView ??= GetComponent<RecyclerView>();
            return recyclerView != null && recyclerView.TryFocusEntry(direction);
        }
    }
}