using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using QFramework;

namespace QFramework
{
	public class ToolBackPackPanelData : UIPanelData
	{
	}

	public partial class ToolBackPackPanel : UIPanel
	{
		//工具数据类对应工具实体
		private Dictionary<ToolConfig, ToolElement> toolElements_Dic = new Dictionary<ToolConfig, ToolElement>();
		//回收池
		private List<ToolElement> toolElementPool = new List<ToolElement>();
		//正确选项
		private List<ToolElement> rightToolElements = new List<ToolElement>();
		//选择的所有选项
		private List<ToolElement> selectToolElements = new List<ToolElement>();

		public event Action<bool> SelectElementHandle;

		private bool hintMode = false;
		public bool HintMode
		{
			get 
			{
				return hintMode; 
			}

			set
			{
				if (hintMode != value)
				{
					hintMode = value;
					Help_Btn.image.sprite = hintMode ? helpBtnSelectSprite : helpBtnNormalSprite;
					SetHintState(hintMode);	
				}
			}
		}

		/// <summary>
		/// 选择对了正确的工具
		/// </summary>
		private bool  rightToolsEqualsSelectTools = false;
		/// <summary>
		/// 帮助按钮正常Sprite
		/// </summary>
		public Sprite helpBtnNormalSprite;
		/// <summary>
		/// 帮助按钮选择Sprite
		/// </summary>
		public Sprite helpBtnSelectSprite;

		protected override void OnInit(IUIData uiData = null)
		{
			mData = uiData as ToolBackPackPanelData ?? new ToolBackPackPanelData();
			// please add init code here

			Help_Btn.onClick.AddListener(() =>
			{
				hintMode = !hintMode;

				Help_Btn.image.sprite = hintMode ? helpBtnSelectSprite : helpBtnNormalSprite;
				SetHintState(hintMode);
			});

			PackMode_Tool_Btn.onClick.AddListener(() =>
			{
				//UIKit.OpenPanel<ToolLibraryForm>();
			});

		}

		protected override void OnOpen(IUIData uiData = null)
		{
		}

		protected override void OnClose()
		{
		}

		/// <summary>
		/// 设置工具背包
		/// </summary>
		/// <param name="tools"></param>
		public void InitToolList(List<ToolConfig> tools)
		{
			ClearToolPackList();
			foreach (var item in tools)
			{
				ToolElement toolElement = GetToolElementByPool();
				toolElement.InitConfig(item);
				toolElement.gameObject.SetActive(true);
				toolElement.transform.parent = Content;
				toolElements_Dic.Add(item, toolElement);

				toolElement.ToolSelectStatusChanged += OnToolElementSelectChanged;
			}

			Content.SetSizeWidth(62 * tools.Count + 20);
		}
		/// <summary>
		/// 设置当前正确工具
		/// </summary>
		/// <param name="rightTools"></param>
		public void SetRightTools(List<ToolConfig> rightTools)
		{
			if (hintMode)
			{
				SetHintState(false);
			}
			rightToolElements.Clear();

			foreach (var item in rightTools)
			{
				if (toolElements_Dic.ContainsKey(item))
				{
					rightToolElements.Add(toolElements_Dic[item]);
				}
			}
			CheckRightElementsAndSelectElements();
			if (hintMode)
			{
				SetHintState(true);
			}
		}		
		/// <summary>
		/// 设置提示状态
		/// </summary>
		/// <param name="state"></param>
		public void SetHintState(bool state)
		{
			if (state) foreach (var item in toolElements_Dic.Values) if (!rightToolElements.Contains(item)) item.M_ToolStatus = ToolStatus.Normal;

			foreach (var item in rightToolElements) item.IsHintTool = state;
		}

		/// <summary>
		/// 判断当前工具选择状态
		/// </summary>
		/// <returns></returns>
		public bool CheckRightToolSelect()
		{
			return rightToolsEqualsSelectTools;
		}

		/// <summary>
		/// 是否开启提示
		/// </summary>
		/// <returns></returns>
		public bool IsHint()
		{
			return hintMode;
		}

		/// <summary>
		/// 清空工具背包
		/// </summary>
		public void ClearToolPackList()
		{
			foreach (var item in toolElements_Dic)
			{
				item.Value.ToolSelectStatusChanged -= OnToolElementSelectChanged;
				PushToolElementToPool(item.Value);
			}
			toolElements_Dic.Clear();
			rightToolElements.Clear();
			selectToolElements.Clear();
		}

		public void OnToolElementSelectChanged(object sender, ToolElement element)
		{
			if (element.M_ToolStatus != ToolStatus.Select && selectToolElements.Contains(element))
			{
				selectToolElements.Remove(element);
			}
			else if (element.M_ToolStatus == ToolStatus.Select && !selectToolElements.Contains(element))
			{
				selectToolElements.Add(element);
			}
			else
			{
				return;
			}

			CheckElementSeleted(element);
			CheckRightElementsAndSelectElements();
		}

		/// <summary>
		/// 每点击一次进行一次回调
		/// </summary>
		private void CheckElementSeleted(ToolElement element)
		{
			if (rightToolElements.Contains(element)) SelectElementHandle?.Invoke(true);
			else SelectElementHandle?.Invoke(false);
		}

		/// <summary>
		/// 判断正确集合和当前选择集合是否相等
		/// </summary>
		private void CheckRightElementsAndSelectElements()
		{
			if (rightToolElements.Count != selectToolElements.Count)
			{
				rightToolsEqualsSelectTools = false;
				return;
			}
			else
			{
				foreach (var item in rightToolElements)
				{
					if (!selectToolElements.Contains(item))
					{
						rightToolsEqualsSelectTools = false;
						return;
					}
				}
				rightToolsEqualsSelectTools = true;
			}
		}

		/// <summary>
		/// 从对象池中获取对象
		/// </summary>
		/// <param name="objName"></param>
		/// <returns></returns>
		public ToolElement GetToolElementByPool()
		{
			ToolElement result = null;
			//判断是否有该名字的对象池
			if (toolElementPool.Count > 0)
			{
				//获取这个对象池中的第一个对象
				result = toolElementPool[0];
				//激活对象
				result.gameObject.SetActive(true);
				//从对象池中移除对象
				toolElementPool.Remove(result);
				//返回结果
				return result;
			}
			//实例化物体
			result = Instantiate(ToolElement.gameObject, this.transform).GetComponent<ToolElement>();

			return result;
		}

		/// <summary>
		/// 回收对象到对象池
		/// </summary>
		public void PushToolElementToPool(ToolElement element)
		{
			element.ClearConfig();

			if (!toolElementPool.Contains(element))
			{
				toolElementPool.Add(element);
			}
			element.gameObject.SetActive(false);
		}
	}
}