using System;
using System.IO;
using System.Text;
using Yahoo.Yui.Compressor;

namespace learun.util
{
	/// <summary>
	/// 版 本 EasyCode EC管理后台
	/// Copyright (c) 2019-present EC管理有限公司
	/// 创建人：tobin
	/// 日 期：2019.09.02
	/// 描 述：js,css压缩类
	/// </summary>
	public static class JsCssHelper
	{
		private static readonly JavaScriptCompressor javaScriptCompressor = new JavaScriptCompressor();
		private static readonly CssCompressor cssCompressor = new CssCompressor();

		#region Js 文件操作

		/// <summary>
		/// 读取js文件内容并压缩
		/// </summary>
		/// <param name="filePathlist"></param>
		/// <returns></returns>
		public static string ReadJSFile(string[] filePathlist)
		{
			StringBuilder jsStr = new StringBuilder();
			try
			{
				string rootPath = ConfigHelper.GetValue<string>("baseDir") + "/wwwroot";
				foreach (var filePath in filePathlist)
				{
					string path = rootPath + filePath;
					if (DirFileHelper.IsExistFile(path))
					{
						string content = File.ReadAllText(path, Encoding.Default);
						if (ConfigHelper.GetValue<string>("env") != "dev")
						{
							content = javaScriptCompressor.Compress(content);
						}
						jsStr.Append(content);
					}
				}
				return jsStr.ToString();
			}
			catch (Exception)
			{
				return "";
			}
		}

		#endregion Js 文件操作

		#region Css 文件操作

		/// <summary>
		/// 读取css 文件内容并压缩
		/// </summary>
		/// <param name="filePathlist"></param>
		/// <returns></returns>
		public static string ReadCssFile(string[] filePathlist)
		{
			StringBuilder cssStr = new StringBuilder();
			try
			{
				string rootPath = ConfigHelper.GetValue<string>("baseDir") + "/wwwroot";
				foreach (var filePath in filePathlist)
				{
					string path = rootPath + filePath;
					if (DirFileHelper.IsExistFile(path))
					{
						string content = File.ReadAllText(path, Encoding.Default);
						content = cssCompressor.Compress(content);
						cssStr.Append(content);
					}
				}
				return cssStr.ToString();
			}
			catch (Exception)
			{
				return cssStr.ToString();
			}
		}

		#endregion Css 文件操作

		#region js 操作

		/// <summary>
		/// 压缩js
		/// </summary>
		/// <param name="strJs"></param>
		/// <returns></returns>
		public static string CompressJS(string strJs)
		{
			if (ConfigHelper.GetValue<string>("env") != "dev")
			{
				strJs = javaScriptCompressor.Compress(strJs);
			}
			return strJs;
		}

		/// <summary>
		/// 压缩Css
		/// </summary>
		/// <param name="strCss"></param>
		/// <returns></returns>
		public static string CompressCss(string strCss)
		{
			if (ConfigHelper.GetValue<string>("env") != "dev")
			{
				strCss = cssCompressor.Compress(strCss);
			}
			return strCss;
		}

		#endregion js 操作

		#region 读取文件

		/// <summary>
		/// 读取js文件
		/// </summary>
		/// <param name="filePath">文件夹目录</param>
		/// <returns></returns>
		public static string ReadJS(string filePath)
		{
			StringBuilder str = new StringBuilder();
			try
			{
				string rootPath = AppContext.BaseDirectory;
				rootPath = rootPath.Replace("\\", "/");
				string path = rootPath + filePath;
				if (DirFileHelper.IsExistFile(path))
				{
					string content = File.ReadAllText(path, Encoding.UTF8);
					if (ConfigHelper.GetValue<string>("env") != "dev")
					{
						content = javaScriptCompressor.Compress(content);
					}
					str.Append(content);
				}
				return str.ToString();
			}
			catch (Exception)
			{
				return "";
			}
		}

		/// <summary>
		/// 读取css文件
		/// </summary>
		/// <param name="filePath"></param>
		/// <returns></returns>
		public static string ReadCss(string filePath)
		{
			StringBuilder str = new StringBuilder();
			try
			{
				string rootPath = AppContext.BaseDirectory;
				rootPath = rootPath.Replace("\\", "/");

				string path = rootPath + filePath;
				if (DirFileHelper.IsExistFile(path))
				{
					string content = File.ReadAllText(path, Encoding.UTF8);
					content = cssCompressor.Compress(content);
					str.Append(content);
				}
				return str.ToString();
			}
			catch (Exception)
			{
				return "";
			}
		}

		#endregion 读取文件
	}
}