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;

namespace NameList
{
	/// <summary>
	/// 名簿管理
	/// </summary>
	public class WebForm1 : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.DataGrid grid;
		private void Make(int id)
		{
			grid.EditItemIndex = id;
			ArrayList a = NameData.Instance(Server);
			string s = (string)Session["sort"];
			if (s != null) 
			{
				a = (ArrayList)a.Clone();
				a.Sort(NameData.Comparer(s));
			}
			grid.DataSource = a;
			grid.DataBind();
			ControlCollection cc = grid.Controls[0].Controls;
			cc[cc.Count-2].Visible = id < 0;
		}
		public void New_Click(object source, EventArgs e)
		{
			ArrayList a = NameData.Instance(Server);
			string	name,tel,email;
			DataGridItem di = (DataGridItem)grid.Controls[0]
				.Controls[grid.Controls[0].Controls.Count-2];
			name = ((TextBox)di.FindControl("NName")).Text;
			tel = ((TextBox)di.FindControl("NTel")).Text;
			email = ((TextBox)di.FindControl("NEmail")).Text;
			lock (a) 
			{
				int	i = 1;
				string s = name;
				bool bFound = true;
				while (bFound) 
				{
					bFound = false;
					foreach (NameData d in a) 
					{
						if (d.Name == s) 
						{
							bFound = true;
							s = name + "(" + (++i).ToString() + ")";
							break;
						}
					}
				}
				a.Add(new NameData(s,tel,email));
			}
			NameData.Save();
			grid.CurrentPageIndex = (a.Count + grid.PageSize - 1) / grid.PageSize - 1;
			Make(-1);
		}
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// ページを初期化するユーザー コードをここに挿入します。
			if (!IsPostBack) Make(-1);
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: この呼び出しは、ASP.NET Web フォーム デザイナで必要です。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Designer サポートに必要なメソッドです。コード エディタで
		/// このメソッドのコンテンツを変更しないでください。
		/// </summary>
		private void InitializeComponent()
		{    
			this.grid.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.grid_PageIndexChanged);
			this.grid.CancelCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.grid_CancelCommand);
			this.grid.EditCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.grid_EditCommand);
			this.grid.SortCommand += new System.Web.UI.WebControls.DataGridSortCommandEventHandler(this.grid_SortCommand);
			this.grid.UpdateCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.grid_UpdateCommand);
			this.grid.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.grid_DeleteCommand);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void grid_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			Make(e.Item.ItemIndex);
		}

		private void grid_UpdateCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			TableCellCollection tc = grid.Items[e.Item.ItemIndex].Cells;
			int id = int.Parse(tc[0].Text)-1;
			ArrayList a = NameData.Instance(Server);
			lock (a) 
			{
				if (id >= a.Count) goto err;
				NameData d = (NameData)a[id];
				if (d.Name != ((Label)tc[1].Controls[1]).Text) goto err;
				d.Tel = ((TextBox)tc[2].FindControl("ETel")).Text;
				d.Email = ((TextBox)tc[3].FindControl("EEmail")).Text;
			}
			NameData.Save();
			Make(-1);
			return;
			err:
			Response.Write("更新できませんでした");
			Make(-1);
		}

		private void grid_CancelCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			Make(-1);
		}

		private void grid_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			TableCellCollection tc = grid.Items[e.Item.ItemIndex].Cells;
			int id = int.Parse(tc[0].Text)-1;
			ArrayList a = NameData.Instance(Server);
			lock (a) 
			{
				if (id >= a.Count) goto err;
				NameData d = (NameData)a[id];
				if (d.Name != ((Label)tc[1].Controls[1]).Text) goto err;
				a.Remove(d);
				for (int i=id;i<a.Count;++i) ((NameData)a[i]).ID = i+1;
			}
			NameData.Save();
			grid.CurrentPageIndex = Math.Min(grid.CurrentPageIndex,
				(a.Count + grid.PageSize - 1) / grid.PageSize - 1);
			Make(-1);
			return;
			err:
			Response.Write("既に削除されているか削除できませんでした");
			Make(-1);
		}

		private void grid_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			grid.CurrentPageIndex = e.NewPageIndex;
			Make(-1);
		}

		private void grid_SortCommand(object source, System.Web.UI.WebControls.DataGridSortCommandEventArgs e)
		{
			Session["sort"] = e.SortExpression == "ID" ? null : e.SortExpression;
			Make(-1);
		}
	}
}