using System.Collections.Generic;
using DG.Tweening;
using TMPro;
using UnityEngine;

namespace DDD
{
    public class GlobalMessageUi : BaseUi, IEventHandler<ShowGlobalMessageEvent>
    {
        [SerializeField] private TextMeshProUGUI _messageText;
        private Tween _fadeTween;
        
        private readonly Queue<ShowGlobalMessageEvent> _messageQueue = new();
        private bool _isDisplayingMessage = false;

        protected override void OnDestroy()
        {
            base.OnDestroy();
            
            EventBus.Unregister(this);
            _fadeTween?.Kill();
        }

        protected override void OnCreatedInitialize()
        {
            base.OnCreatedInitialize();
            
            _canvasGroup.alpha = 0;
            _messageText.text = null;
            
            EventBus.Register(this);
        }

        public void Invoke(ShowGlobalMessageEvent evt)
        {
            _messageQueue.Enqueue(evt);
            TryDisplayNext();
        }

        private void TryDisplayNext()
        {
            if (_isDisplayingMessage || _messageQueue.Count == 0) return;

            var evt = _messageQueue.Dequeue();
            _isDisplayingMessage = true;

            _messageText.color = evt.TextColor;
            _messageText.fontSize = evt.FontSize;
            
            string localized = LocalizationManager.Instance.GetString(evt.NewMessageKey);
            _messageText.text = localized;
            OpenPanel();

            _fadeTween?.Kill();
            _fadeTween = DOTween.Sequence()
                .Append(_canvasGroup.DOFade(1f, evt.FadeDuration))
                .AppendInterval(evt.ShowDuration)
                .Append(_canvasGroup.DOFade(0f, evt.FadeDuration))
                .OnComplete(() =>
                {
                    ClosePanel();
                    _fadeTween = null;
                    _isDisplayingMessage = false;

                    // 다음 메시지 처리
                    TryDisplayNext();
                });
        }
    }
}