using System;
using System.Text;
using System.Collections.Generic;
using Server.Gumps;
using Server.Network;
using Server.Mobiles;

namespace Server.Engines.ConPVP
{
	public class ArenasMoongate : Item
	{
		public override string DefaultName => "arena moongate";

		[Constructible]
		public ArenasMoongate() : base( 0x1FD4 )
		{
			Movable = false;
			Light = LightType.Circle300;
		}

		public ArenasMoongate( Serial serial ) : base( serial )
		{
		}

		public override void Serialize( GenericWriter writer )
		{
			base.Serialize( writer );

			writer.Write( (int) 0 );
		}

		public override void Deserialize( GenericReader reader )
		{
			base.Deserialize( reader );

			int version = reader.ReadInt();
			Light = LightType.Circle300;
		}

		public bool UseGate( Mobile from )
		{
			if ( DuelContext.CheckCombat( from ) )
			{
				from.SendMessage( 0x22, "You have recently been in combat with another player and cannot use this moongate." );
				return false;
			}
			else if ( from.Spell != null )
			{
				from.SendLocalizedMessage( 1049616 ); // You are too busy to do that at the moment.
				return false;
			}
			else
			{
				from.CloseGump( typeof( ArenaGump ) );
				from.SendGump( new ArenaGump( from, this ) );

				if ( !from.Hidden || from.AccessLevel == AccessLevel.Player )
					Effects.PlaySound( from.Location, from.Map, 0x20E );

				return true;
			}
		}

		public override void OnDoubleClick( Mobile from )
		{
			if ( from.InRange( GetWorldLocation(), 1 ) )
				UseGate( from );
			else
				from.LocalOverheadMessage( MessageType.Regular, 0x3B2, 1019045 ); // I can't reach that
		}

		public override bool OnMoveOver( Mobile m )
		{
			return ( !m.Player || UseGate( m ) );
		}
	}

	public class ArenaGump : Gump
	{
		private Mobile m_From;
		private ArenasMoongate m_Gate;
		private List<Arena> m_Arenas;

		private void Append( StringBuilder sb, LadderEntry le )
		{
			if ( le == null )
				return;

			if ( sb.Length > 0 )
				sb.Append( ", " );

			sb.Append( le.Mobile.Name );
		}

		public override void OnResponse( NetState sender, RelayInfo info )
		{
			if ( info.ButtonID != 1 )
				return;

			int[] switches = info.Switches;

			if ( switches.Length == 0 )
				return;

			int opt = switches[0];

			if ( opt < 0 || opt >= m_Arenas.Count )
				return;

			Arena arena = m_Arenas[opt];

			if ( !m_From.InRange( m_Gate.GetWorldLocation(), 1 ) || m_From.Map != m_Gate.Map )
			{
				m_From.SendLocalizedMessage( 1019002 ); // You are too far away to use the gate.
			}
			else if ( DuelContext.CheckCombat( m_From ) )
			{
				m_From.SendMessage( 0x22, "You have recently been in combat with another player and cannot use this moongate." );
			}
			else if ( m_From.Spell != null )
			{
				m_From.SendLocalizedMessage( 1049616 ); // You are too busy to do that at the moment.
			}
			else if ( m_From.Map == arena.Facet && arena.Zone.Contains( m_From ) )
			{
				m_From.SendLocalizedMessage( 1019003 ); // You are already there.
			}
			else
			{
				BaseCreature.TeleportPets( m_From, arena.GateIn, arena.Facet );

				m_From.Combatant = null;
				m_From.Warmode = false;
				m_From.Hidden = true;

				m_From.MoveToWorld( arena.GateIn, arena.Facet );

				Effects.PlaySound( arena.GateIn, arena.Facet, 0x1FE );
			}
		}

		public ArenaGump( Mobile from, ArenasMoongate gate ) : base( 50, 50 )
		{
			m_From = from;
			m_Gate = gate;
			m_Arenas = Arena.Arenas;

			AddPage( 0 );

			int height = 12 + 20 + (m_Arenas.Count * 31) + 24 + 12;

			AddBackground( 0, 0, 499+40, height, 0x2436 );

			List<Arena> list = m_Arenas;

			for ( int i = 1; i < list.Count; i += 2 )
				AddImageTiled( 12, 32 + (i * 31), 475+40, 30, 0x2430 );

			AddAlphaRegion( 10, 10, 479+40, height - 20 );

			AddColumnHeader(  35, null );
			AddColumnHeader( 115, "Arena" );
			AddColumnHeader( 325, "Participants" );
			AddColumnHeader(  40, "Obs" );

			AddButton( 499+40 - 12 - 63 - 4 - 63, height - 12 - 24, 247, 248, 1, GumpButtonType.Reply, 0 );
			AddButton( 499+40 - 12 - 63, height - 12 - 24, 241, 242, 2, GumpButtonType.Reply, 0 );

			for ( int i = 0; i < list.Count; ++i )
			{
				Arena ar = list[i];

				string name = ar.Name;

				if ( name == null )
					name = "(no name)";

				int x = 12;
				int y = 32 + (i * 31);

				int color = ( ar.Players.Count > 0 ? 0xCCFFCC : 0xCCCCCC );

				AddRadio( x + 3, y + 1, 9727, 9730, false, i );
				x += 35;

				AddBorderedText( x + 5, y + 5, 115 - 5, name, color, 0 );
				x += 115;

				StringBuilder sb = new StringBuilder();

				if ( ar.Players.Count > 0 )
				{
					Ladder ladder = Ladder.Instance;

					if ( ladder == null )
						continue;

					LadderEntry p1 = null, p2 = null, p3 = null, p4 = null;

					for ( int j = 0; j < ar.Players.Count; ++j )
					{
						Mobile mob = (Mobile)ar.Players[j];
						LadderEntry c = ladder.Find( mob );

						if ( p1 == null || c.Index < p1.Index )
						{
							p4 = p3;
							p3 = p2;
							p2 = p1;
							p1 = c;
						}
						else if ( p2 == null || c.Index < p2.Index )
						{
							p4 = p3;
							p3 = p2;
							p2 = c;
						}
						else if ( p3 == null || c.Index < p3.Index )
						{
							p4 = p3;
							p3 = c;
						}
						else if ( p4 == null || c.Index < p4.Index )
						{
							p4 = c;
						}
					}

					Append( sb, p1 );
					Append( sb, p2 );
					Append( sb, p3 );
					Append( sb, p4 );

					if ( ar.Players.Count > 4 )
						sb.Append( ", ..." );
				}
				else
				{
					sb.Append( "Empty" );
				}

				AddBorderedText( x + 5, y + 5, 325 - 5, sb.ToString(), color, 0 );
				x += 325;

				AddBorderedText( x, y + 5, 40, Center( ar.Spectators.ToString() ), color, 0 );
			}
		}

		public string Center( string text )
		{
			return $"<CENTER>{text}</CENTER>";
		}

		public string Color( string text, int color )
		{
			return $"<BASEFONT COLOR=#{color:X6}>{text}</BASEFONT>";
		}

		private void AddBorderedText( int x, int y, int width, string text, int color, int borderColor )
		{
			/*AddColoredText( x - 1, y, width, text, borderColor );
			AddColoredText( x + 1, y, width, text, borderColor );
			AddColoredText( x, y - 1, width, text, borderColor );
			AddColoredText( x, y + 1, width, text, borderColor );*/
			/*AddColoredText( x - 1, y - 1, width, text, borderColor );
			AddColoredText( x + 1, y + 1, width, text, borderColor );*/
			AddColoredText( x, y, width, text, color );
		}

		private void AddColoredText( int x, int y, int width, string text, int color )
		{
			if ( color == 0 )
				AddHtml( x, y, width, 20, text, false, false );
			else
				AddHtml( x, y, width, 20, Color( text, color ), false, false );
		}

		private int m_ColumnX = 12;

		private void AddColumnHeader( int width, string name )
		{
			AddBackground( m_ColumnX, 12, width, 20, 0x242C );
			AddImageTiled( m_ColumnX + 2, 14, width - 4, 16, 0x2430 );

			if ( name != null )
				AddBorderedText( m_ColumnX, 13, width, Center( name ), 0xFFFFFF, 0 );

			m_ColumnX += width;
		}
	}
}