// ***********************************************************************
// Assembly         : Game
// Author           : Kimch
// Created          : 2020-09-08
// Description      :
// Last Modified By : 
// Last Modified On : 
// ***********************************************************************
// <copyright file= "EditorScriptsCreator" company="Kimch"></copyright>
// <summary></summary>
// ***********************************************************************

using System;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using UnityEditor;
using UnityEditor.ProjectWindowCallback;
using UnityEngine;

namespace KF.ScriptHelper
{
	internal class CreateAssetAction
	{
		/// <summary>
		/// 添加Assets/Create/My C#子菜单并创建MonoBehaviour脚本
		/// </summary>
		[MenuItem("Assets/Create/My C#", false, 60)]
		public static void CreateNormalCS()
		{
			//参数为传递给CreateEventCSScriptAsset类action方法的参数  
			ProjectWindowUtil.StartNameEditingIfProjectWindowExists(0,
				ScriptableObject.CreateInstance<CreateCSScriptAsset>(),
				GetSelectPathOrFallback() + "/NewScript.cs", EditorGUIUtility.FindTexture("cs Script Icon"),
				EditorScriptsConfig.Instance.templatePath + "81-C# Script-NewBehaviourScript.cs.txt");
		}

		[MenuItem("Assets/Create/My UI C#/Window", false, 61)]
		public static void CerateUICS()
		{
			if (!Selection.activeObject)
			{
				return;
			}

			AutoCreatUIScript.CreateUIScripts();
		}

		/// <summary>
		/// 添加Assets/Create/My C#子菜单并创建MonoBehaviour脚本
		/// </summary>
		[MenuItem("Assets/Create/My UI C#/Widget", false, 62)]
		public static void CreateUIItemCS()
		{
			//参数为传递给CreateEventCSScriptAsset类action方法的参数  
			ProjectWindowUtil.StartNameEditingIfProjectWindowExists(0,
				ScriptableObject.CreateInstance<CreateCSScriptAsset>(),
				GetSelectPathOrFallback() + "/NewScript.cs", EditorGUIUtility.FindTexture("cs Script Icon"),
				EditorScriptsConfig.Instance.templatePath + "81-C# Script-UIWidgetScript.cs.txt");
		}
		/// <summary>
		/// 获取路径
		/// </summary>
		/// <returns></returns>
		public static string GetSelectPathOrFallback()
		{
			string path = "Assets";
			//遍历选中的资源以获得路径  
			//Selection.GetFiltered是过滤选择文件或文件夹下的物体，assets表示只返回选择对象本身  
			foreach (
				UnityEngine.Object obj in
				Selection.GetFiltered(typeof(UnityEngine.Object),
				SelectionMode.Assets))
			{
				path = AssetDatabase.GetAssetPath(obj);
				if (!string.IsNullOrEmpty(path) && File.Exists(path))
				{
					path = Path.GetDirectoryName(path);
					break;
				}
			}
			return path;
		}

		public string GetSelectUIPathOrFallback()
		{
			string path = "Assets";
			//遍历选中的资源以获得路径  
			//Selection.GetFiltered是过滤选择文件或文件夹下的物体，assets表示只返回选择对象本身  
			foreach (
				UnityEngine.Object obj in
				Selection.GetFiltered(typeof(UnityEngine.Object),
				SelectionMode.Assets))
			{
				path = AssetDatabase.GetAssetPath(obj);
				if (!string.IsNullOrEmpty(path) && File.Exists(path))
				{
					path = Path.GetDirectoryName(path);
					break;
				}
			}
			return path;

		}
	}

	//要创建模板文件必须继承EndNameEditAction，重写action方法  
	internal class CreateCSScriptAsset : EndNameEditAction
	{
		public override void Action(int instanceId, string pathName, string resourceFile)
		{
			//创建资源  
			UnityEngine.Object obj = CreateScriptAssetFromTemplate(pathName, resourceFile);
			ProjectWindowUtil.ShowCreatedAsset(obj);//高亮显示资源  
		}

		internal static UnityEngine.Object CreateScriptAssetFromTemplate(string pathName, string resourceFile)
		{
			//获取要创建资源的绝对路径  
			string fullPath = Path.GetFullPath(pathName);

			//读取本地的模板文件  
			StreamReader streamReader = new StreamReader(resourceFile);
			string text = streamReader.ReadToEnd();
			streamReader.Close();

			//获取文件名，不含扩展名  
			string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(pathName);
			while (fileNameWithoutExtension.Contains("."))
			{
				fileNameWithoutExtension = Path.GetFileNameWithoutExtension(fileNameWithoutExtension);
			}

			text = ReplaceRule(text, fileNameWithoutExtension);

			//写入配置文件  
			bool encoderShouldEmitUTF8Identifier = true; //参数指定是否提供 Unicode 字节顺序标记  
			bool throwOnInvalidBytes = false;//是否在检测到无效的编码时引发异常  
			bool append = false;
			UTF8Encoding encoding = new UTF8Encoding(encoderShouldEmitUTF8Identifier, throwOnInvalidBytes);
			StreamWriter streamWriter = new StreamWriter(fullPath, append, encoding);
			streamWriter.Write(text);
			streamWriter.Close();

			//刷新资源管理器  
			AssetDatabase.ImportAsset(pathName);
			AssetDatabase.Refresh();
			return AssetDatabase.LoadAssetAtPath(pathName, typeof(UnityEngine.Object));
		}

		//将模板类中的类名替换成你创建的文件名 
		internal static string ReplaceRule(string text, string scriptName)
		{
			//将模板类中的类名替换成你创建的文件名  
			text = Regex.Replace(text, "#SCRIPTNAME#", scriptName);
			text = Regex.Replace(text, "#AUTHOR#", EditorScriptsConfig.Instance.author);
			text = Regex.Replace(text, "#COMPANY#", EditorScriptsConfig.Instance.company);
			text = Regex.Replace(text, "#NAMESPACE#", EditorScriptsConfig.Instance.nameSpace);
			text = Regex.Replace(text, "#DATE#", DateTime.Now.ToString("yyyy-MM-dd"));
			return text;
		}
	}

	internal class AutoCreatUIScript
	{
		public static void CreateUIScripts()
		{
			var obj = Selection.activeObject;
			if (!obj)
			{
				EditorUtility.DisplayDialog("错误提示", "请先选择Prefab", "确认");
			}
			string directory = AssetDatabase.GetAssetPath(obj);
			if (Directory.Exists(directory))
			{
				var files = Directory.GetFiles(directory);
				if (files.Length < 2)
				{
					GenerateWindow(Path.Combine(directory, obj.name + ".cs"), obj.name);
					GenerateView(Path.Combine(directory, obj.name + ".View.cs"), obj.name);
				}
			}
		}

		public static void GenerateWindow(string generateFilePath, string behaviourName)
		{
			var sw = new StreamWriter(generateFilePath, false, Encoding.UTF8);

			var tFile = Path.Combine(EditorScriptsConfig.Instance.templatePath, "81-C# Script-UIScript.cs.txt");

			StreamReader streamReader = new StreamReader(tFile);
			string text = streamReader.ReadToEnd();
			streamReader.Close();

			text = CreateCSScriptAsset.ReplaceRule(text, behaviourName);
			sw.Write(text);

			sw.Flush();
			sw.Close();

			CreateCSScriptAsset.CreateScriptAssetFromTemplate(generateFilePath, generateFilePath);
			AssetDatabase.SaveAssets();
			AssetDatabase.Refresh();
		}

		public static void GenerateView(string generateFilePath, string behaviourName)
		{
			var sw = new StreamWriter(generateFilePath, false, Encoding.UTF8);

			var tFile = Path.Combine(EditorScriptsConfig.Instance.templatePath, "81-C# Script-UIScript.View.cs.txt");
			StreamReader streamReader = new StreamReader(tFile);
			string text = streamReader.ReadToEnd();
			streamReader.Close();

			text = CreateCSScriptAsset.ReplaceRule(text, behaviourName);

			sw.Write(text);

			sw.Flush();
			sw.Close();

			AssetDatabase.SaveAssets();
			AssetDatabase.Refresh();
		}
	}
}