// 名簿管理用データクラス
// Copyright (c) 2002 Tsutomu Saito All Rights Reserved
using System;
using System.Collections;
using System.IO;
using System.Runtime;
using System.Runtime.Serialization.Formatters.Soap;

namespace NameList
{
	/// <summary>名簿データ</summary>
	[Serializable]
	class NameData 
	{
		private int		id;
		private string	name;
		private string	tel;
		private string	email;
		/// <summary>順番</summary>
		public int ID {get{return id;} set{id = value;}}
		/// <summary>名前</summary>
		public string Name {get{return name;} set{name = value;}}
		/// <summary>電話番号</summary>
		public string Tel {get{return tel;} set{tel = value;}}
		/// <summary>e-mailアドレス</summary>
		public string Email {get{return email;} set{email = value;}}
		/// <summary>コンストラクタ</summary>
		public NameData(string s1,string s2,string s3) 
		{
			id = s_a.Count+1;
			name = s1; tel = s2; email = s3;
		}
		private class CompID : IComparer 
		{
			public int Compare(object i,object j) {return ((NameData)i).id - ((NameData)j).id;}
		}
		private class CompName : IComparer 
		{
			public int Compare(object i,object j) {return string.Compare(((NameData)i).name,((NameData)j).name);}
		}
		private class CompTel : IComparer 
		{
			public int Compare(object i,object j) {return string.Compare(((NameData)i).tel,((NameData)j).tel);}
		}
		private class CompEmail : IComparer 
		{
			public int Compare(object i,object j) {return string.Compare(((NameData)i).email,((NameData)j).email);}
		}
		/// <summary>比較クラス</summary>
		public static IComparer Comparer(string s)
		{
			if (s == "ID") return new CompID();
			if (s == "Name") return new CompName();
			if (s == "Tel") return new CompTel();
			if (s == "Email") return new CompEmail();
			return null;
		}

		private static string s_fnam;
		private static ArrayList s_a = null;
		/// <summary>インスタンス取得</summary>
		public static ArrayList Instance(System.Web.HttpServerUtility Server)
		{
			if (s_a == null) 
			{
				lock (typeof(NameData)) 
				{
					if (s_a == null) 
					{
						ArrayList a = new ArrayList();
						s_fnam = Server.MapPath("NameList.xml");
						Stream stream = null;
						try 
						{
							stream = File.Open(s_fnam,FileMode.Open);
							SoapFormatter formatter = new SoapFormatter();
							formatter.AssemblyFormat = System.Runtime.Serialization.Formatters.FormatterAssemblyStyle.Simple;
							a = (ArrayList)formatter.Deserialize(stream);
						} 
						catch 
						{
							if (stream != null) stream.Close();
						}
						s_a = a;
					}
				}
			}
			return s_a;
		}
		/// <summary>データ保存</summary>
		public static void Save()
		{
			if (s_a == null) return;
			lock (s_a) 
			{
				Stream stream = null;
				try 
				{
					stream = File.Open(s_fnam,FileMode.Create);
					SoapFormatter formatter = new SoapFormatter();
					formatter.AssemblyFormat = System.Runtime.Serialization.Formatters.FormatterAssemblyStyle.Simple;
					formatter.Serialize(stream,s_a);
				} 
				catch {}
				finally
				{
					if (stream != null) stream.Close();
				}
			}
		}
	}
}