using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.IO;

namespace _lib.CMS
{
	/// <summary>
	/// Resource 顯示資源信息。
	/// </summary>
	public class Resource : System.Web.UI.Page
	{
		protected System.Web.UI.HtmlControls.HtmlGenericControl lblTitle;
		protected System.Web.UI.HtmlControls.HtmlInputHidden txtID;
		protected System.Web.UI.HtmlControls.HtmlInputImage btnOK;
		protected System.Web.UI.HtmlControls.HtmlInputText txtResourceName;
		protected System.Web.UI.HtmlControls.HtmlInputText txtResourceDesc;
		protected System.Web.UI.HtmlControls.HtmlInputFile txtResourceFile;
		protected System.Web.UI.HtmlControls.HtmlInputText txtResourceURL;
		private string FArticleID;
		private string FResourceID;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.ValidationSummary ValidationSummary1;
		protected System.Web.UI.WebControls.CustomValidator CustomValidator1;
		private bool FIsNew;

		private void Page_Load(object sender, System.EventArgs e)
		{
			// （本功能為后臺用戶專用）權限檢查
			TCmsUser.CheckUser(this);

			// 在此處放置用戶代碼以初始化頁面
			FArticleID= this.Request["aid"];
			FResourceID= this.Request["id"];
			FIsNew= false;
			if (FResourceID==null)
			{
				if (FArticleID!=null)	// 如果是帶有文章編號的調用，則表示編輯修改與之相關的資源
				{
					FResourceID= TCmsResource.GetResourceID(FArticleID);
				}
				FIsNew= (FResourceID==null);
			}

			txtID.Value= FResourceID;

			if (!IsPostBack && !FIsNew)
			{
				// 顯示細節信息
				LoadDetail();
			}
		}

		#region Web 窗體設計器生成的代碼
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 該調用是 ASP.NET Web 窗體設計器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}

		/// <summary>
		/// 設計器支持所需的方法 - 不要使用代碼編輯器修改
		/// 此方法的內容。
		/// </summary>
		private void InitializeComponent()
		{
			this.btnOK.ServerClick += new System.Web.UI.ImageClickEventHandler(this.btnOK_ServerClick);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void LoadDetail()
		{
			TCmsResource oResource= new TCmsResource(FResourceID);
			oResource.Select();
			txtResourceName.Value     = oResource.ResourceName;
			txtResourceDesc.Value     = oResource.ResourceDesc;
			//txtResourceFile.Value     = oResource.ResourceFilename;
			txtResourceURL.Value      = oResource.UploadPath + oResource.ResourceFilename;
		}

		// 刪除資源文件
		private void DeleteResourceFile(string Filename)
		{
			try
			{
				System.IO.File.Delete( Server.MapPath(Filename) );
			}
			catch
			{
			}
		}

		private void btnOK_ServerClick(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			TCmsResource oResource= new TCmsResource(FResourceID);
			string TempPath = "../"+oResource.UploadPath;
			string TempName = Path.GetFileName(txtResourceFile.PostedFile.FileName);
			if (!FIsNew)
			{
				oResource.Select();
			}
			oResource.ResourceUID      = TSqlDB.ZeroUniqueID;
			oResource.ResourceAID      = FArticleID;
			oResource.ResourceName     = txtResourceName.Value;
			oResource.ResourceDesc     = txtResourceDesc.Value;
			if ((TempName.Length>0) && (txtResourceFile.PostedFile.ContentLength>0))
			{
				// 先刪除原來的文件
				DeleteResourceFile(TempPath + oResource.ResourceFilename);
				// 再上傳新文件
				oResource.ResourceFilename = TempName;
				oResource.ResourceURL      = Server.HtmlEncode(TempName);
				txtResourceFile.PostedFile.SaveAs( Server.MapPath(TempPath + TempName) );
			}
			if (FIsNew)
			{
				oResource.Insert();
			}
			else
			{
				oResource.Update();
			}

			// 跳轉返回
			string strResponse="";
			strResponse+= "<script language='javascript'>";
			strResponse+= "alert('Data Changed.');";
			strResponse+= "if (opener) {";
			strResponse+= "  window.close();";
			strResponse+= "} else {";
			strResponse+= "  window.location.href='ResourceList.aspx?aid="+FArticleID+"';";
			strResponse+= "}";
			strResponse+= "</script>";
			this.Response.Write(strResponse);
		}
	}
}