using Cysharp.Threading.Tasks;

using DG.Tweening;

using MessagePipe;

using PMaker.DependencyInjection;
using PMaker.MessagePipe;

using System.Threading;

using TMPro;

using UniRx;
using UniRx.Triggers;

using UnityEngine;
using UnityEngine.UI;

public class UINextTip : NameMessageBehaviour<string>
{
    public float duration = 1.5f;

    [SerializeField]
    private Transform _root;

    [SerializeField]
    private TextMeshProUGUI[] _text;

    [SerializeField]
    private Button _nextBtn;
    private void Reset()
    {
        this._root = this.transform.Find("Root");
        this._text = this.GetComponentsInChildren<TextMeshProUGUI>(true);
        this._nextBtn = this.GetComponentInChildren<Button>(true);
    }

    private void Start()
    {
        var key = true;
#if UNITY_EDITOR
        if (IoC.GetSingleton<TestMark>() == true)
        {
            var tokenSource = new CancellationTokenSource();
            this.UpdateAsObservable()
                .Where(_ => Input.GetKeyDown(KeyCode.F12))
                .Subscribe(async _ => {
                    tokenSource?.Cancel();
                    await UniTask.WaitUntil(() => key == true);
                    tokenSource = new CancellationTokenSource();
                    tokenSource.AddTo(this);
                    await MessageKit.PublishAsync(this.name, "这是一条测试提示!", tokenSource.Token);
                })
                .AddTo(this);
        }
#endif

        this.asyncHandler =
           async (string message, CancellationToken cancellationToken) => {
               key = false;
               _text[0].text = message;
               var text = _text[1];
               text.text = string.Empty;
               this._root.gameObject.SetActive(true);
               var result = await DOTween
                 .To(() => text.text, value => text.text = value, message, duration)
                 .SetEase(Ease.Linear)
                 .AwaitForComplete(TweenCancelBehaviour.KillWithCompleteCallbackAndCancelAwait, cancellationToken: cancellationToken)
                 .SuppressCancellationThrow();
               Debug.Log(this.name + "IsCanceled: " + result);
               // 箭头动画 TODO
               if (result != true)
               {
                   await _nextBtn.OnClickAsync(cancellationToken).SuppressCancellationThrow();
               }
               this._root.gameObject.SetActive(false);
               key = true;
           };
    }
}