// ***********************************************************************
// Assembly         : Game
// Author           : Kimch
// Created          : 2021-09-17
// Description      :
// Last Modified By : 
// Last Modified On : 
// ***********************************************************************
// <copyright file= "BookDetailWindow.View" company="Kunpo"></copyright>
// <summary></summary>
// ***********************************************************************
namespace G.UI
{
	using System.Collections;
	using System.Collections.Generic;
	using DG.Tweening;
	using TMPro;
	using UnityEngine;
	using UnityEngine.UI;
	/// <summary>
	/// 
	/// </summary>
	partial class BookDetailWindow
	{
		class LineWidget : KUIWidget
		{
			[KUIFlag]
			TextMeshProUGUI _tmpContent;
			[KUIFlag]
			Image _imgCorrect;

			private string _content;
			private int _lineIndex;
			private Tween _tween;

			public override void Refresh()
			{
				if (this.data is LineInfo lineInfo)
				{
					_content = lineInfo.content;
					_lineIndex = lineInfo.index;

					_tmpContent.text = _content;
					SetColor();
				}
			}

			public void ShowContentWithAnim(LineInfo lineInfo)
			{
				_content = lineInfo.content;
				_lineIndex = lineInfo.index;

				_imgCorrect.color = Color.clear;
				
				//_tmpContent.text = _content;
				//_tmpContent.alpha = 1f;
				//_tmpContent.CrossFadeAlpha(1f, 1f, true);

				_tmpContent.text = "";
				_tween = _tmpContent.DOText(_content, 2f);
			}

			public bool SetColor()
			{
				if (this.transform.GetSiblingIndex() == _lineIndex)
				{
					_imgCorrect.color = Color.clear;
					_tmpContent.color = Color.black;
					
					return true;
				}
				else
				{
					_imgCorrect.color = Color.white;
					_tmpContent.color=(new Color32(211, 57, 57, 255));
					return false;
				}
			}

			public void OnDropEndMy()
			{
				SetColor();
				PostNotification(GlobalDefine.EVENT_BOOK_ARRANGE);
			}

			private void Awake()
			{
				SetViewData();
				GetComponent<KDraggable>().onDragEnd.AddListener(OnDropEndMy);
			}

			private void OnDisable()
			{
				if (_tween != null)
					_tween.Kill(false);
			}
		}

		class LineInfo
		{
			public string content;
			public int index;
		}

		#region Field

#pragma warning disable CS0649 // 从未对字段赋值，字段将一直保持其默认值 null
		[KUIFlag]
		Button _btnBack;
		[KUIFlag]
		KUIList __listPoem;
		[KUIFlag]
		TextMeshProUGUI _tmpDescription;
		[KUIFlag]
		TextMeshProUGUI _tmpPointer;
		[KUIFlag]
		TextMeshProUGUI _tmpName;
		[KUIFlag]
		TextMeshProUGUI _tmpAuthor;
		[KUIFlag]
		GameObject _goActived;
#pragma warning restore CS0649 // 从未对字段赋值，字段将一直保持其默认值 null

		private List<LineInfo> _lineInfos = new List<LineInfo>(8);
		private List<LineWidget> _lineWidgets = new List<LineWidget>();

		#endregion

		#region Method

		/// <summary>
		/// 
		/// </summary>
		public void InitView()
		{
			SetViewData();
			_btnBack.onClick.AddListener(this.OnBackBtnClick);
			__listPoem.AddTemplate<LineWidget>(true);
			//__listPoem.GetComponent<KDropZone>().onDrop.AddListener(OnLineDrop);
		}

		/// <summary>
		/// 
		/// </summary>
		public void RefreshView()
		{
			StopAllCoroutine();
			StartCoroutine(RefreshViewCO());
			//if (this.data is ItemBook book)
			//{
			//	_lineInfos.Clear();
			//	for (int i = 0, c = book.contents.Length; i < c; i++)
			//	{
			//		_lineInfos.Add(new LineInfo
			//		{
			//			content = book.contents[i],
			//			index = c - i - 1,
			//		});
			//	}

			//	_tmpName.text = book.name;
			//	_tmpAuthor.text = book.author;
			//	_tmpDescription.text = book.description;
			//	_tmpDescription.enableVertexGradient = book.isActive;

			//	_goActived.SetActive(book.isActive);
			//	if (book.isActive)
			//	{
			//		__listPoem.GetComponent<CanvasGroup>().blocksRaycasts = false;
			//		_tmpPointer.alpha = 0f;

			//		StartCoroutine(ShowPoemWithAnim(_lineInfos));
			//		//_lineWidgets.Clear();
			//		//__listPoem.Clear();
			//		//for (int i = _lineInfos.Count - 1; i >= 0; i--)
			//		//{
			//		//	var lineWidget = __listPoem.GetItem<LineWidget>();
			//		//	lineWidget.SetData(_lineInfos[i]);
			//		//	//lineWidget.transform.SetAsLastSibling();
			//		//}
			//	}
			//	else
			//	{
			//		__listPoem.GetComponent<CanvasGroup>().blocksRaycasts = true;
			//		_tmpPointer.alpha = 1f;

			//		ListRandom(_lineInfos);

			//		__listPoem.Clear();
			//		_lineWidgets.Clear();
			//		__listPoem.transform.
			//		for (int i = 0; i < _lineInfos.Count; i++)
			//		{
			//			var lineWidget = __listPoem.GetItem<LineWidget>();
			//			lineWidget.SetData(_lineInfos[i]);
			//			lineWidget.transform.SetAsFirstSibling();
			//			_lineWidgets.Add(lineWidget);
			//		}
			//	}
			//}
		}

		IEnumerator RefreshViewCO()
		{
			if (this.data is ItemBook book)
			{
				_lineInfos.Clear();
				for (int i = 0, c = book.contents.Length; i < c; i++)
				{
					_lineInfos.Add(new LineInfo
					{
						content = book.contents[i],
						index = c - i - 1,
					});
				}

				_tmpName.text = book.name;
				_tmpAuthor.text = book.author;
				_tmpDescription.text = book.description;
				_tmpDescription.enableVertexGradient = book.isActive;

				_goActived.SetActive(book.isActive);
				if (book.isActive)
				{
					__listPoem.GetComponent<CanvasGroup>().blocksRaycasts = false;
					_tmpPointer.alpha = 0f;

					__listPoem.Clear();
					yield return null;
					for (int i = 0; i < _lineInfos.Count; i++)
					{
						var lineWidget = __listPoem.GetItem<LineWidget>();
						lineWidget.transform.SetAsFirstSibling();
						lineWidget.ShowContentWithAnim(_lineInfos[i]);
						yield return new WaitForSeconds(1f);
					}
				}
				else
				{
					__listPoem.GetComponent<CanvasGroup>().blocksRaycasts = true;
					_tmpPointer.alpha = 1f;

					ListRandom(_lineInfos);
					_lineWidgets.Clear();
					__listPoem.Clear();

					var lineParent = __listPoem.transform;
					lineParent.DetachChildren();
					yield return null;
					for (int i = 0; i < _lineInfos.Count; i++)
					{
						var lineWidget = __listPoem.GetItem<LineWidget>();
						lineWidget.SetData(_lineInfos[i]);
						lineWidget.transform.SetParent(lineParent);
						lineWidget.transform.SetAsFirstSibling();
						_lineWidgets.Add(lineWidget);
					}

					foreach (var lw in _lineWidgets)
					{
						lw.SetColor();
					}
				}
			}
		}

		static void ListRandom(List<LineInfo> sources)
		{
			LineInfo temp = sources[0];
			int index = Random.Range(1, sources.Count - 1);
			sources[0] = sources[index];
			sources[index] = temp;

			for (int i = 1; i < sources.Count; i++)
			{
				index = Random.Range(1, sources.Count - 1);
				if (index != i)
				{
					temp = sources[i];
					sources[i] = sources[index];
					sources[index] = temp;
				}
			}
		}

		public void ClearView()
		{
			_lineWidgets.Clear();
			__listPoem.Clear();
		}

		IEnumerator ShowPoemWithAnim(List<LineInfo> lines)
		{
			__listPoem.Clear();
			yield return null;
			for (int i = 0; i < _lineInfos.Count; i++)
			{
				var lineWidget = __listPoem.GetItem<LineWidget>();
				lineWidget.transform.SetAsFirstSibling();
				lineWidget.ShowContentWithAnim(_lineInfos[i]);
				yield return new WaitForSeconds(1f);
			}
		}

		void OnLineDrop()
		{
			bool arrange = true;
			foreach (var lw in _lineWidgets)
			{
				if (!lw.SetColor())
					arrange = false;
			}

			if (arrange)
			{
				if (BookProxy.Instance.ActiveBook(this.data as ItemBook))
				{
					ToastBox.ShowEffect("UI_fx_Arrangement01");
					RefreshView();
				}
			}
		}

		void OnBackBtnClick()
		{
			CloseWindow(this);
			SoundProxy.PlayFxAsync(GlobalDefine.BUTTON_CLICK_SOUND);
		}

		#endregion
	}
}