#region References
using System;
using System.Collections;

using Server;
using Server.Gumps;
using Server.Network;
#endregion

namespace Knives.TownHouses
{
	public delegate void GumpStateCallback(object obj);

	public delegate void GumpCallback();

	public abstract class GumpPlusLight : Gump
	{
		public static void RefreshGump(Mobile m, Type type)
		{
			if (m.NetState == null)
			{
				return;
			}

			foreach (var g in m.NetState.Gumps)
			{
				if (g is GumpPlusLight && g.GetType() == type)
				{
					m.CloseGump(type);
					((GumpPlusLight)g).NewGump();
					return;
				}
			}
		}

		private readonly Mobile c_Owner;
		private readonly Hashtable c_Buttons;
		private readonly Hashtable c_Fields;

		public Mobile Owner { get { return c_Owner; } }

		public GumpPlusLight(Mobile m, int x, int y)
			: base(x, y)
		{
			c_Owner = m;

			c_Buttons = new Hashtable();
			c_Fields = new Hashtable();

			Timer.DelayCall(TimeSpan.FromSeconds(0), NewGump);
		}

		public void Clear()
		{
			Entries.Clear();
			c_Buttons.Clear();
			c_Fields.Clear();
		}

		public virtual void NewGump()
		{
			NewGump(true);
		}

		public void NewGump(bool clear)
		{
			if (clear)
			{
				Clear();
			}

			BuildGump();

			c_Owner.SendGump(this);
		}

		public void SameGump()
		{
			c_Owner.SendGump(this);
		}

		protected abstract void BuildGump();

		private int UniqueButton()
		{
			var random = 0;

			do
			{
				random = Utility.Random(20000);
			}
			while (c_Buttons[random] != null);

			return random;
		}

		private int UniqueTextId()
		{
			var random = 0;

			do
			{
				random = Utility.Random(20000);
			}
			while (c_Buttons[random] != null);

			return random;
		}

		public void AddBackgroundZero(int x, int y, int width, int height, int back)
		{
			AddBackgroundZero(x, y, width, height, back, true);
		}

		public void AddBackgroundZero(int x, int y, int width, int height, int back, bool over)
		{
			var plus = new BackgroundPlus(x, y, width, height, back, over);

			Entries.Insert(0, plus);
		}

		public new void AddBackground(int x, int y, int width, int height, int back)
		{
			AddBackground(x, y, width, height, back, true);
		}

		public void AddBackground(int x, int y, int width, int height, int back, bool over)
		{
			var plus = new BackgroundPlus(x, y, width, height, back, over);

			Add(plus);
		}

		public void AddButton(int x, int y, int id, GumpCallback callback)
		{
			AddButton(x, y, id, id, "None", callback);
		}

		public void AddButton(int x, int y, int id, GumpStateCallback callback, object arg)
		{
			AddButton(x, y, id, id, "None", callback, arg);
		}

		public void AddButton(int x, int y, int id, string name, GumpCallback callback)
		{
			AddButton(x, y, id, id, name, callback);
		}

		public void AddButton(int x, int y, int id, string name, GumpStateCallback callback, object arg)
		{
			AddButton(x, y, id, id, name, callback, arg);
		}

		public void AddButton(int x, int y, int up, int down, GumpCallback callback)
		{
			AddButton(x, y, up, down, "None", callback);
		}

		public void AddButton(int x, int y, int up, int down, string name, GumpCallback callback)
		{
			var id = UniqueButton();

			var button = new ButtonPlus(x, y, up, down, id, name, callback);

			Add(button);

			c_Buttons[id] = button;
		}

		public void AddButton(int x, int y, int up, int down, GumpStateCallback callback, object arg)
		{
			AddButton(x, y, up, down, "None", callback, arg);
		}

		public void AddButton(int x, int y, int up, int down, string name, GumpStateCallback callback, object arg)
		{
			var id = UniqueButton();

			var button = new ButtonPlus(x, y, up, down, id, name, callback, arg);

			Add(button);

			c_Buttons[id] = button;
		}

		public void AddHtml(int x, int y, int width, string text)
		{
			AddHtml(x, y, width, 21, HTML.White + text, false, false, true);
		}

		public void AddHtml(int x, int y, int width, string text, bool over)
		{
			AddHtml(x, y, width, 21, HTML.White + text, false, false, over);
		}

		public new void AddHtml(int x, int y, int width, int height, string text, bool back, bool scroll)
		{
			AddHtml(x, y, width, height, HTML.White + text, back, scroll, true);
		}

		public void AddHtml(int x, int y, int width, int height, string text, bool back, bool scroll, bool over)
		{
			var html = new HtmlPlus(x, y, width, height, HTML.White + text, back, scroll, over);

			Add(html);
		}

		public void AddTextField(int x, int y, int width, int height, int color, int back, string name, string text)
		{
			var id = UniqueTextId();

			AddImageTiled(x, y, width, height, back);
			AddTextEntry(x, y, width, height, color, id, text);

			c_Fields[id] = name;
			c_Fields[name] = text;
		}

		public string GetTextField(string name)
		{
			if (c_Fields[name] == null)
			{
				return "";
			}

			return c_Fields[name].ToString();
		}

		public int GetTextFieldInt(string name)
		{
			return Utility.ToInt32(GetTextField(name));
		}

		protected virtual void OnClose()
		{ }

		public override void OnResponse(NetState state, RelayInfo info)
		{
			var name = "";

			try
			{
				if (info.ButtonID == -5)
				{
					NewGump();
					return;
				}

				foreach (var t in info.TextEntries)
				{
					c_Fields[c_Fields[t.EntryID].ToString()] = t.Text;
				}

				if (info.ButtonID == 0)
				{
					OnClose();
				}

				if (c_Buttons[info.ButtonID] == null || !(c_Buttons[info.ButtonID] is ButtonPlus))
				{
					return;
				}

				name = ((ButtonPlus)c_Buttons[info.ButtonID]).Name;

				((ButtonPlus)c_Buttons[info.ButtonID]).Invoke();
			}
			catch (Exception e)
			{
				Errors.Report("An error occured during a gump response.  More information can be found on the console.");
				if (name != "")
				{
					Console.WriteLine("{0} gump name triggered an error.", name);
				}
				Console.WriteLine(e.Message);
				Console.WriteLine(e.Source);
				Console.WriteLine(e.StackTrace);
			}
		}
	}
}