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 DocAdmin.BLL ;
using DocAdmin.COMMON ;

namespace DocAdmin.USL
{
	/// <summary>
	/// Recycle 的摘要說明。
	/// </summary>
	public class Recycle : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.DataGrid dg;
		protected System.Web.UI.WebControls.Label Label8;
		DataTable dtRecycle = null ;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			dtRecycle = (DataTable)Session["dtRecycle"] ;
			if(dtRecycle == null)
			{
				dtRecycle = new DataTable() ;
			}
			if(!IsPostBack)
			{
				//查詢回收站內容
				InitRecycle() ;
			}
			//綁定表格
			CommHandler.BindGrid(dg,dtRecycle) ;
		}

		private void InitRecycle()
		{
			//查詢回收站列表
			dtRecycle = DocFileInfo.GetRecycle() ;
			Session["dtRecycle"] = dtRecycle ;
			CommHandler.BindGrid(dg,dtRecycle) ;
		}

		#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.dg.ItemCreated += new System.Web.UI.WebControls.DataGridItemEventHandler(this.dg_ItemCreated);
			this.dg.ItemCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.dg_ItemCommand);
			this.dg.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.dg_DeleteCommand);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void dg_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			if(e.CommandName == "Revert")
			{
				//獲取待還原行的文件類型以及主鍵ID
				int i = e.Item.ItemIndex ;
				string type = dtRecycle.Rows[i]["TYPE"].ToString() ;
				int id =  CommHandler.StringToInt(dtRecycle.Rows[i]["FID"].ToString()) ;
				if(type == "文件夾")
				{
					//還原目錄
					FolderInfo.RevertFolder(id) ;
				}
				else
				{
					//還原文件
					DocFileInfo.RevertFile(id) ;
				}
				//重新綁定回收站內容列表
				InitRecycle() ;
			}
					
		}

		private void dg_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			//獲取待刪除行的文件類型以及主鍵ID
			int i = e.Item.ItemIndex ;
			string type = dtRecycle.Rows[i]["TYPE"].ToString() ;
			int id =  CommHandler.StringToInt(dtRecycle.Rows[i]["FID"].ToString()) ;
			if(type == "文件夾")
			{
				//徹底刪除目錄
				FolderInfo.DeleteFolder(id) ;
			}
			else
			{
				//徹底刪除文件
				DocFileInfo.DeleteFile(id) ;
			}	
			//重新綁定回收站內容列表
			InitRecycle() ;
		}

		private void dg_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
		{
			DataGridItem dgi = e.Item ;

			//頁眉頁腳不處理
			if(dgi.ItemType == ListItemType.Header
				|| dgi.ItemType == ListItemType.Footer)
			{
				return ;
			}

			//找到刪除按鈕
			TableCell cell = new TableCell() ;
			cell =  dgi.Cells[10] ;
			LinkButton btn = new LinkButton() ;
			btn = (LinkButton)cell.Controls[0] ;
			CommHandler.AddConfirm(btn,"確認要刪除這條記錄嗎？") ;

			//找到還原按鈕
			cell = new TableCell() ;
			cell =  dgi.Cells[9] ;
			btn = new LinkButton() ;
			btn = (LinkButton)cell.Controls[0] ;
			CommHandler.AddConfirm(btn,"確認要還原這條記錄嗎？") ;
		
		}
	}
}