using Cysharp.Threading.Tasks;

using System;
using System.Threading;

using UnityEngine;
using UnityEngine.UI;

namespace PMaker.Await.UI
{
    public class UISelect : AwaitBehaviour
    {
        public Func<CancellationToken, UniTask>[] onSelect;

        [SerializeField]
        private Button[] _btns;

        private void Reset()
        {
            this._btns = GetComponentsInChildren<Button>(true);
        }

        public async override UniTask WaitAsync(CancellationToken cancellationToken)
        {
            this.gameObject.SetActive(true);
            var (isCanceled, result) = await UniTask.WhenAny(_btns.Select(_ => _.OnClickAsync(cancellationToken))).SuppressCancellationThrow();
            if (isCanceled != true)
            {
                await onSelect[result].Invoke(cancellationToken);
            }
            onSelect = null;
            this.gameObject.SetActive(false);
        }

        public async UniTask WaitAsync(CancellationToken cancellationToken, params Func<CancellationToken, UniTask>[] onSelect)
        {
            this.gameObject.SetActive(true);
            var (isCanceled, result) = await UniTask.WhenAny(_btns.Select(_ => _.OnClickAsync(cancellationToken))).SuppressCancellationThrow();
            if (isCanceled != true)
            {
                await onSelect[result].Invoke(cancellationToken);
            }
            this.gameObject.SetActive(false);
        }
    }
}