#define FACTIONS
using System;
using System.IO;
using System.Xml;
using Server;
using Server.Items;
using Server.Network;
using Server.Mobiles;
using System.Collections.Generic;
using Server.Targeting;
using Server.Gumps;
using System.Text;
using Server.Commands;
using Server.Commands.Generic;

namespace Server.Engines.XmlSpawner2
{

	public class XmlQuestLeaders
	{

		private static TimeSpan m_QuestLeaderboardSaveInterval = TimeSpan.FromMinutes(15);   // default time interval between quest leaderboard saves
		private static string m_QuestLeaderboardSaveDirectory = "Leaderboard";     // default directory for saving quest leaderboard xml information
		private static int m_QuestLeaderboardSaveRanks = 20;               // number of ranked players to save to the quest leaderboard.  0 means save all players.

		private static QuestLeaderboardTimer m_QuestLeaderboardTimer;
		private static string m_QuestLeaderboardFile;
		private static List<XmlQuestLeaders.QuestRankEntry> QuestRankList = new List<XmlQuestLeaders.QuestRankEntry>();
		private static bool needsupdate = true;

		public class QuestRankEntry : IComparable<XmlQuestLeaders.QuestRankEntry>
		{
			public Mobile Quester;
			public int Rank;
			public XmlQuestPoints QuestPointsAttachment;

			public QuestRankEntry(Mobile m, XmlQuestPoints attachment)
			{
				Quester = m;
				QuestPointsAttachment = attachment;
			}

			public int CompareTo( QuestRankEntry p )
			{
				if(p.QuestPointsAttachment == null || QuestPointsAttachment == null) return 0;

				// break points ties with quests completed (more quests means higher rank)
				if(p.QuestPointsAttachment.Points - QuestPointsAttachment.Points == 0)
				{
					// if kills are the same then compare previous rank
					if(p.QuestPointsAttachment.QuestsCompleted - QuestPointsAttachment.QuestsCompleted == 0)
					{
						return p.QuestPointsAttachment.Rank - QuestPointsAttachment.Rank;
					}

					return p.QuestPointsAttachment.QuestsCompleted - QuestPointsAttachment.QuestsCompleted;
				}

				return p.QuestPointsAttachment.Points - QuestPointsAttachment.Points;
			}
		}

		private static void RefreshQuestRankList()
		{
			if(needsupdate && QuestRankList != null)
			{
				QuestRankList.Sort();

				int rank = 0;
				//int prevpoints = 0;
				for(int i= 0; i<QuestRankList.Count;i++)
				{
					QuestRankEntry p = QuestRankList[i];

					// bump the rank for every change in point level
					// this means that people with the same points score will have the same rank
					/*
					if(p.QuestPointsAttachment.Points != prevpoints)
					{
						rank++;
					}

					prevpoints = p.QuestPointsAttachment.Points;
					*/

					// bump the rank for every successive player in the list.  Players with the same points total will be
					// ordered by quests completed
					rank++;

					p.Rank = rank;
				}
				needsupdate = false;
			}
		}

		public static int GetQuestRanking(Mobile m)
		{
			if(QuestRankList == null || m == null) return 0;

			RefreshQuestRankList();

			// go through the sorted list and calculate rank

			for(int i= 0; i<QuestRankList.Count;i++)
			{
				QuestRankEntry p = QuestRankList[i];
				// found the person?
				if(p.Quester == m)
				{
					return p.Rank;
				}
			}

			// rank 0 means unranked
			return 0;
		}

		public static void UpdateQuestRanking(Mobile m, XmlQuestPoints attachment)
		{
			if(QuestRankList == null) QuestRankList = new List<XmlQuestLeaders.QuestRankEntry>();

			// flag the rank list for updating on the next attempt to retrieve a rank
			needsupdate = true;

			bool found = false;

			// rank the entries
			for(int i= 0; i<QuestRankList.Count;i++)
			{
				QuestRankEntry p = QuestRankList[i];
				
				// found a match
				if(p != null && p.Quester == m)
				{
					// update the entry with the new points value

					p.QuestPointsAttachment = attachment;
					found = true;
					break;
				}
			}

			// a new entry so add it
			if(!found)
			{
				QuestRankList.Add(new QuestRankEntry(m, attachment));
			}
		}

		public static void Initialize()
		{

			CommandSystem.Register( "QuestLeaderboardSave", AccessLevel.Administrator, new CommandEventHandler( QuestLeaderboardSave_OnCommand ) );
			CommandSystem.Register( "QuestRanking", AccessLevel.Player, new CommandEventHandler( QuestRanking_OnCommand ) );
		}
		
		
		[Usage( "QuestRanking" )]
		[Description( "Displays the top players in quest points" )]
		public static void QuestRanking_OnCommand( CommandEventArgs e )
		{
			if(e == null || e.Mobile == null) return;

			// if this player has an XmlQuestPoints attachment, find it
			XmlQuestPoints p = (XmlQuestPoints)XmlAttach.FindAttachment(e.Mobile,typeof(XmlQuestPoints));

			e.Mobile.CloseGump(typeof(TopQuestPlayersGump));
			e.Mobile.SendGump(new TopQuestPlayersGump(p));
		}

		public static void WriteQuestLeaderboardXml(string filename, int nranks)
		{
			string dirname = Path.Combine( m_QuestLeaderboardSaveDirectory, filename );

			StreamWriter sw = new StreamWriter( dirname  );

			XmlTextWriter xf = new XmlTextWriter( sw );

			if(xf == null)
			{
				Console.WriteLine("Error: unable to save XML quest leaderboard to {0}", dirname);
				return;
			}

			xf.Formatting = Formatting.Indented;

			xf.WriteStartDocument( true );

			xf.WriteStartElement( "QuestLeaderboard" );
				
			if(nranks > 0)
				xf.WriteAttributeString( "nentries", nranks.ToString() );
			else
				xf.WriteAttributeString( "nentries", QuestRankList.Count.ToString() );

			// go through the sorted list and display the top ranked players

			for(int i= 0; i<QuestRankList.Count;i++)
			{
				if(nranks > 0 && i >= nranks) break;

				QuestRankEntry r = QuestRankList[i];
				XmlQuestPoints a = r.QuestPointsAttachment;


				if(r.Quester != null && !r.Quester.Deleted && r.Rank > 0 && a != null && !a.Deleted)
				{
					string guildname = null;

					if(r.Quester.Guild != null)
						guildname = r.Quester.Guild.Abbreviation;
#if(FACTIONS)
					string factionname = null;

					if(r.Quester is PlayerMobile && ((PlayerMobile)r.Quester).FactionPlayerState != null) 
						factionname = ((PlayerMobile)r.Quester).FactionPlayerState.Faction.ToString();
#endif
					// check for any ranking change and update rank date
					if(r.Rank != a.Rank)
					{
						a.WhenRanked = DateTime.UtcNow;
						if(a.Rank > 0)
							a.DeltaRank = a.Rank - r.Rank;
						a.Rank = r.Rank;

					}

					TimeSpan timeranked = DateTime.UtcNow - a.WhenRanked;

					// write out the entry information
					
					xf.WriteStartElement( "Entry" );
					xf.WriteAttributeString( "number", i.ToString() );

					xf.WriteStartElement( "Player" );
					xf.WriteString( r.Quester.Name );
					xf.WriteEndElement();

					xf.WriteStartElement( "Guild" );
					xf.WriteString( guildname );
					xf.WriteEndElement();
#if(FACTIONS)
					xf.WriteStartElement( "Faction" );
					xf.WriteString( factionname );
					xf.WriteEndElement();
#endif
					xf.WriteStartElement( "Points" );
					xf.WriteString( a.Points.ToString() );
					xf.WriteEndElement();

					string quests = "???";
					try
					{
						quests = a.QuestsCompleted.ToString();
					}
					catch{}
					xf.WriteStartElement( "Quests" );
					xf.WriteString( quests );
					xf.WriteEndElement();

					xf.WriteStartElement( "Rank" );
					xf.WriteString( a.Rank.ToString() );
					xf.WriteEndElement();

					xf.WriteStartElement( "Change" );
					xf.WriteString( a.DeltaRank.ToString() );
					xf.WriteEndElement();

					xf.WriteStartElement( "Duration" );
					xf.WriteString( timeranked.ToString() );
					xf.WriteEndElement();

					// end the entry
					xf.WriteEndElement();

				}
			}

			xf.WriteEndElement();

			xf.Close();
		}
		
		public static void WriteQuestLeaderboardHtml(string filename, int nranks)
		{
			string dirname = Path.Combine( m_QuestLeaderboardSaveDirectory, filename );

			StreamWriter sw = new StreamWriter( dirname  );

			if(sw == null)
			{
				Console.WriteLine("Error: unable to save HTML quest leaderboard to {0}", dirname);
				return;
			}
			sw.WriteLine("<TABLE border=\"1\" summary=\"This table gives quest leaderboard stats\"> ");
			sw.WriteLine( "<CAPTION><B>Quest Leaderboard</B></CAPTION>");
#if(FACTIONS)
			sw.WriteLine( "<TR><TH><TH>Player Name<TH>Guild<TH>Faction<TH>Points<TH>Quests<TH>Rank<TH>Change<TH>Time at current rank");
#else
            sw.WriteLine( "<TR><TH><TH>Player Name<TH>Guild<TH>Points<TH>Quests<TH>Rank<TH>Change<TH>Time at current rank");
#endif
			// go through the sorted list and display the top ranked players

			for(int i= 0; i<QuestRankList.Count;i++)
			{
				if(nranks > 0 && i >= nranks) break;

				QuestRankEntry r = QuestRankList[i];
				XmlQuestPoints a = r.QuestPointsAttachment;

				if(r.Quester != null && !r.Quester.Deleted && r.Rank > 0 && a != null && !a.Deleted)
				{
					string guildname = null;

					if(r.Quester.Guild != null)
						guildname = r.Quester.Guild.Abbreviation;
#if(FACTIONS)
					string factionname = null;

					if(r.Quester is PlayerMobile && ((PlayerMobile)r.Quester).FactionPlayerState != null) 
						factionname = ((PlayerMobile)r.Quester).FactionPlayerState.Faction.ToString();
#endif
					// check for any ranking change and update rank date
					if(r.Rank != a.Rank)
					{
						a.WhenRanked = DateTime.UtcNow;
						if(a.Rank > 0)
							a.DeltaRank = a.Rank - r.Rank;
						a.Rank = r.Rank;

					}

					TimeSpan timeranked = DateTime.UtcNow - a.WhenRanked;
					
					string quests = "???";
					try
					{
						quests = a.QuestsCompleted.ToString();
					}
					catch{}

#if(FACTIONS)
					// write out the entry information
					sw.WriteLine( "<TR><TH><TD>{0}<TD>{1}<TD>{2}<TD>{3}<TD>{4}<TD>{5}<TD>{6}<TD>{7}",
						r.Quester.Name,
						guildname,
						factionname,
						a.Points,
						quests,
						a.Rank,
						a.DeltaRank,
						timeranked
						);
#else
                    // write out the entry information
					sw.WriteLine( "<TR><TH><TD>{0}<TD>{1}<TD>{2}<TD>{3}<TD>{4}<TD>{5}<TD>{6}",
					r.Quester.Name,
					guildname,
					a.Points,
					quests,
					a.Rank,
					a.DeltaRank,
					timeranked
					);

#endif

				}
			}
			sw.WriteLine( "</TABLE>");
			sw.Close();
		}


		public static void WriteQuestLeaderboard(string filename, int nranks)
		{
			if(QuestRankList == null) return;

			// force an update of the quest leaderboard rankings
			needsupdate = true;
			RefreshQuestRankList();

			if ( !Directory.Exists( m_QuestLeaderboardSaveDirectory ) )
				Directory.CreateDirectory( m_QuestLeaderboardSaveDirectory );

			WriteQuestLeaderboardXml(filename + ".xml",  nranks);

			WriteQuestLeaderboardHtml(filename + ".html",  nranks);

		}


		[Usage( "QuestLeaderboardSave [filename [minutes[nentries]]][off]" )]
		[Description( "Periodically save .xml quest leaderboard information to the specified file" )]
		public static void QuestLeaderboardSave_OnCommand( CommandEventArgs e )
		{
			if(e.Arguments.Length > 0)
			{
				if(m_QuestLeaderboardTimer != null) m_QuestLeaderboardTimer.Stop();

				if(e.Arguments[0].ToLower() != "off")
				{
					m_QuestLeaderboardFile = e.Arguments[0];

					if(e.Arguments.Length > 1)
					{
						try
						{
							m_QuestLeaderboardSaveInterval = TimeSpan.FromMinutes(double.Parse(e.Arguments[1]));
						}
						catch{}
					}
					
					if(e.Arguments.Length > 2)
					{
						try
						{
							m_QuestLeaderboardSaveRanks = int.Parse(e.Arguments[2]);
						}
						catch{}
					}


					m_QuestLeaderboardTimer = new QuestLeaderboardTimer(m_QuestLeaderboardFile, m_QuestLeaderboardSaveInterval, m_QuestLeaderboardSaveRanks);
					m_QuestLeaderboardTimer.Start();
				}
			}


			if(m_QuestLeaderboardTimer != null && m_QuestLeaderboardTimer.Running)
			{
				e.Mobile.SendMessage("Quest Leaderboard is saving to {0} every {1} minutes. Nranks = {2}",
					m_QuestLeaderboardFile, m_QuestLeaderboardSaveInterval.TotalMinutes, m_QuestLeaderboardSaveRanks);
			}
			else
			{
				e.Mobile.SendMessage("Quest Leaderboard saving is off.");
			}
		}

		public static void QuestLBSSerialize( GenericWriter writer )
		{
			// version
			writer.Write( (int) 0 );

			// version 0
			if(m_QuestLeaderboardTimer != null && m_QuestLeaderboardTimer.Running)
			{
				writer.Write((bool)true);
			} 
			else
				writer.Write((bool)false);
			writer.Write(m_QuestLeaderboardSaveInterval);
			writer.Write(m_QuestLeaderboardSaveRanks);
			writer.Write(m_QuestLeaderboardFile);
		}
		
		public static void QuestLBSDeserialize(GenericReader reader)
		{
			int version = reader.ReadInt();

			switch(version)
			{

				case 0:
					bool running = reader.ReadBool();
					m_QuestLeaderboardSaveInterval = reader.ReadTimeSpan();
					m_QuestLeaderboardSaveRanks = reader.ReadInt();
					m_QuestLeaderboardFile = reader.ReadString();

					if(running)
					{
						if(m_QuestLeaderboardTimer != null) m_QuestLeaderboardTimer.Stop();
						m_QuestLeaderboardTimer = new QuestLeaderboardTimer(m_QuestLeaderboardFile, m_QuestLeaderboardSaveInterval, m_QuestLeaderboardSaveRanks);
						m_QuestLeaderboardTimer.Start();
					}
					break;
			}

		}

		// added the duration timer that begins on spawning
		private class QuestLeaderboardTimer : Timer
		{
			private string m_filename;
			private int m_nranks;

			public QuestLeaderboardTimer( string filename, TimeSpan delay, int nranks ) : base( delay, delay )
			{
				m_filename = filename;
				m_nranks = nranks;
				Priority = TimerPriority.FiveSeconds;
			}

			protected override void OnTick()
			{
				WriteQuestLeaderboard(m_filename, m_nranks);
			}
		}

		public class TopQuestPlayersGump : Gump
		{
			private XmlQuestPoints m_attachment;

			public TopQuestPlayersGump(XmlQuestPoints attachment) : base( 0,0)
			{
				if(QuestRankList == null) return;

				m_attachment = attachment;

				int numberToDisplay = 20;
				int height = numberToDisplay*20 + 65;

				// prepare the page
				AddPage( 0 );

				int width = 740;
#if(FACTIONS)
				width = 790;
#endif

				AddBackground( 0, 0, width, height, 5054 );
				AddAlphaRegion( 0, 0, width, height );
				AddImageTiled( 20, 20, width - 40, height - 45, 0xBBC );
				AddLabel( 20, 2, 55, "Top Quest Player Rankings" ); 

				// guild filter
				AddLabel( 40, height - 20, 55, "Filter by Guild" );  
				string filter = null;
				if(m_attachment != null)
					filter = m_attachment.guildFilter;

				AddImageTiled( 140, height - 20, 160, 19, 0xBBC );
				AddTextEntry( 140, height - 20, 160, 19, 0, 200, filter );

				AddButton( 20, height - 20, 0x15E1, 0x15E5, 200, GumpButtonType.Reply, 0 );

				// name filter
				AddLabel( 340, height - 20, 55, "Filter by Name" );  // 
				string nfilter = null;
				if(m_attachment != null)
					nfilter = m_attachment.nameFilter;

				AddImageTiled( 440, height - 20, 160, 19, 0xBBC );
				AddTextEntry( 440, height - 20, 160, 19, 0, 100, nfilter );

				AddButton( 320, height - 20, 0x15E1, 0x15E5, 100, GumpButtonType.Reply, 0 );

				RefreshQuestRankList();

				int xloc = 23;
				AddLabel( xloc, 20, 0, "Name" );  
				xloc += 177;
				AddLabel( xloc, 20, 0, "Guild" );  
#if(FACTIONS)
				xloc += 35;
				AddLabel( xloc, 20, 0, "Faction" );  
				xloc += 15;
#endif
				xloc += 50;
				AddLabel( xloc, 20, 0, "Points" );   
				xloc += 50;
				AddLabel( xloc, 20, 0, "Quests" );
				xloc += 50;
				//AddLabel( xloc, 20, 0, "" );
				xloc += 70;
				AddLabel( xloc, 20, 0, "Rank" );
				xloc += 45;
				AddLabel( xloc, 20, 0, "Change" );  
				xloc += 45;
				AddLabel( xloc, 20, 0, "Time at Rank" );  

				// go through the sorted list and display the top ranked players

				int y = 40;
				int count = 0;
				for(int i= 0; i<QuestRankList.Count;i++)
				{
					if(count >= numberToDisplay) break;

					QuestRankEntry r = QuestRankList[i];

					if(r == null) continue;

					XmlQuestPoints a = r.QuestPointsAttachment;

					if(a == null) continue;

					if(r.Quester != null && !r.Quester.Deleted && r.Rank > 0 && a != null && !a.Deleted)
					{
						string guildname = null;

						if(r.Quester.Guild != null) guildname = r.Quester.Guild.Abbreviation;

#if(FACTIONS)
						string factionname = null;
    
						if(r.Quester is PlayerMobile && ((PlayerMobile)r.Quester).FactionPlayerState != null) 
							factionname = ((PlayerMobile)r.Quester).FactionPlayerState.Faction.ToString();
#endif
						// check for any ranking change and update rank date
						if(r.Rank != a.Rank)
						{
							a.WhenRanked = DateTime.UtcNow;
							if(a.Rank > 0)
								a.DeltaRank = a.Rank - r.Rank;
							a.Rank = r.Rank;

						}

						// check for guild filter
						if(m_attachment != null && m_attachment.guildFilter != null && m_attachment.guildFilter.Length > 0)
						{
							// parse the comma separated list
							string [] args = m_attachment.guildFilter.Split(',');
							if(args != null)
							{
								bool found = false;
								foreach(string arg in args)
								{
									if(arg != null && guildname == arg.Trim())
									{
										found = true;
										break;
									}
								}
								if(!found) continue;
							}
						}

						// check for name filter
						if(m_attachment != null && m_attachment.nameFilter != null && m_attachment.nameFilter.Length > 0)
						{
							// parse the comma separated list
							string [] args = m_attachment.nameFilter.Split(',');

							if(args != null)
							{
								bool found = false;
								foreach(string arg in args)
								{
									if(arg != null && r.Quester.Name != null && (r.Quester.Name.ToLower().IndexOf(arg.Trim().ToLower()) >= 0))
									{
										found = true;
										break;
									}
								}
								if(!found) continue;
							}
						}

						count++;

						TimeSpan timeranked = DateTime.UtcNow - a.WhenRanked;

						int days = (int)timeranked.TotalDays;
						int hours = (int)(timeranked.TotalHours - days*24);
						int mins = (int)(timeranked.TotalMinutes - ((int)timeranked.TotalHours)*60);

						string quests = "???";
						try
						{
							quests = a.QuestsCompleted.ToString();
						}
						catch{}

						xloc = 23;
						AddLabel( xloc, y, 0, r.Quester.Name ?? String.Empty );
						xloc += 177;
						AddLabel( xloc, y, 0, guildname ?? String.Empty );
#if(FACTIONS)
						xloc += 35;
						AddLabelCropped( xloc, y, 60, 21, 0, factionname ?? String.Empty );
						xloc += 15;
#endif
						xloc += 50;
						AddLabel( xloc, y, 0, a.Points.ToString() );
						xloc += 50;
						AddLabel( xloc, y, 0, quests ?? String.Empty );
						xloc += 50;
						//AddLabel( xloc, y, 0, "" );
						xloc += 70;
						AddLabel( xloc, y, 0, a.Rank.ToString() );

						string label=null;

						if(days > 0)
							label += String.Format("{0} days ",days); 
						if(hours > 0)
							label += String.Format("{0} hours ",hours);  
						if(mins > 0)
							label += String.Format("{0} mins",mins);   

						if(label == null)
						{
							label = "just changed";  
						}

						string deltalabel = a.DeltaRank.ToString();
						int deltahue = 0;
						if(a.DeltaRank > 0)
						{
							deltalabel = String.Format("+{0}",a.DeltaRank);
							deltahue = 68;
						}
						else if(a.DeltaRank < 0)
						{
							deltahue = 33;
						}
						xloc += 50;
						AddLabel( xloc, y, deltahue, deltalabel );
						xloc += 40;
						AddLabel( xloc, y, 0, label);

						y += 20;
					}
				}
			}

			public override void OnResponse( NetState state, RelayInfo info )
			{
				if(state == null || state.Mobile == null || info == null) return;
				// Get the current name
				if(m_attachment != null)
				{
					TextRelay entry = info.GetTextEntry( 200 );
					if(entry != null)
						m_attachment.guildFilter = entry.Text;
						
					entry = info.GetTextEntry( 100 );
					if(entry != null)
						m_attachment.nameFilter = entry.Text;
				}
				
				switch(info.ButtonID)
				{
					case 100:
					case 200:
					{
						// redisplay the gump
						state.Mobile.SendGump(new TopQuestPlayersGump(m_attachment));
						break;
					}
				}
			}
		}
		
	}
}