using System;
using System.Collections;
using System.Collections.Generic;
using Server;
using Server.Mobiles;
using Server.Targeting;
using Server.ContextMenus;
using Server.Network;
using Server.Regions;
using Server.Spells;

namespace Server.Items
{
	public class BallOfSummoning : Item, TranslocationItem
	{
		private int m_Charges;
		private int m_Recharges;
		private BaseCreature m_Pet;
		private string m_PetName;

		[CommandProperty( AccessLevel.GameMaster )]
		public int Charges
		{
			get{ return m_Charges; }
			set
			{
				if ( value > this.MaxCharges )
					m_Charges = this.MaxCharges;
				else if ( value < 0 )
					m_Charges = 0;
				else
					m_Charges = value;

				InvalidateProperties();
			}
		}

		[CommandProperty( AccessLevel.GameMaster )]
		public int Recharges
		{
			get{ return m_Recharges; }
			set
			{
				if ( value > this.MaxRecharges )
					m_Recharges = this.MaxRecharges;
				else if ( value < 0 )
					m_Recharges = 0;
				else
					m_Recharges = value;

				InvalidateProperties();
			}
		}

		[CommandProperty( AccessLevel.GameMaster )]
		public int MaxCharges{ get{ return 20; } }

		[CommandProperty( AccessLevel.GameMaster )]
		public int MaxRecharges{ get{ return 255; } }

		public string TranslocationItemName{ get{ return "crystal ball of pet summoning"; } }

		[CommandProperty( AccessLevel.GameMaster )]
		public BaseCreature Pet
		{
			get
			{
				if ( m_Pet != null && m_Pet.Deleted )
				{
					m_Pet = null;
					InternalUpdatePetName();
				}

				return m_Pet;
			}
			set
			{
				m_Pet = value;
				InternalUpdatePetName();
			}
		}

		[CommandProperty( AccessLevel.GameMaster )]
		public string PetName{ get{ return m_PetName; } }

		[Constructable]
		public BallOfSummoning() : base( 0xE2E )
		{
			Weight = 10.0;
			Light = LightType.Circle150;

			m_Charges = Utility.RandomMinMax( 3, 9 );

			m_PetName = "";
		}

		public override void AddNameProperty( ObjectPropertyList list )
		{
			list.Add( 1054131, m_Charges.ToString() + ( m_PetName.Length == 0 ? "\t " : "\t" + m_PetName ) ); // a crystal ball of pet summoning: [charges: ~1_charges~] : [linked pet: ~2_petName~]
		}

		public override void OnSingleClick( Mobile from )
		{
			LabelTo( from, 1054131, m_Charges.ToString() + ( m_PetName.Length == 0 ? "\t " : "\t" + m_PetName ) ); // a crystal ball of pet summoning: [charges: ~1_charges~] : [linked pet: ~2_petName~]
		}

		private delegate void BallCallback( Mobile from );

		public override void GetContextMenuEntries( Mobile from, List<ContextMenuEntry> list )
		{
			base.GetContextMenuEntries( from, list );

			if ( from.Alive && this.RootParent == from )
			{
				if ( Pet == null )
				{
					list.Add( new BallEntry( new BallCallback( LinkPet ), 6180 ) );
				}
				else
				{
					list.Add( new BallEntry( new BallCallback( SummonPet ), 6181 ) );
					list.Add( new BallEntry( new BallCallback( UpdatePetName ), 6183 ) );
					list.Add( new BallEntry( new BallCallback( UnlinkPet ), 6182 ) );
				}
			}
		}

		private class BallEntry : ContextMenuEntry
		{
			private BallCallback m_Callback;

			public BallEntry( BallCallback callback, int number ) : base( number, 2 )
			{
				m_Callback = callback;
			}

			public override void OnClick()
			{
				Mobile from = Owner.From;

				if ( from.CheckAlive() )
					m_Callback( from );
			}
		}

		public override void OnDoubleClick( Mobile from )
		{
			if ( this.RootParent == from ) // TODO: Previous implementation allowed use on ground, without house protection checks. What is the correct behavior?
			{
				if ( Pet == null )
				{
					LinkPet( from );
				}
				else
				{
					SummonPet( from );
				}
			}
			else
			{
				from.LocalOverheadMessage( MessageType.Regular, 0x3B2, 1042001 ); // That must be in your pack for you to use it.
			}
		}

		public void LinkPet( Mobile from )
		{
			BaseCreature pet = this.Pet;

			if ( Deleted || pet != null || this.RootParent != from )
				return;

			from.SendLocalizedMessage( 1054114 ); // Target your pet that you wish to link to this Crystal Ball of Pet Summoning.
			from.Target = new PetLinkTarget( this );
		}

		private class PetLinkTarget : Target
		{
			private BallOfSummoning m_Ball;

			public PetLinkTarget( BallOfSummoning ball ) : base( -1, false, TargetFlags.None )
			{
				m_Ball = ball;
			}

			protected override void OnTarget( Mobile from, object targeted )
			{
				if ( m_Ball.Deleted || m_Ball.Pet != null )
					return;

				if ( m_Ball.RootParent != from )
				{
					from.LocalOverheadMessage( MessageType.Regular, 0x3B2, 1042001 ); // That must be in your pack for you to use it.
				}
				else if ( targeted is BaseCreature )
				{
					BaseCreature creature = (BaseCreature)targeted;

					if ( !creature.Controlled || creature.ControlMaster != from || targeted is BaseHire )
					{
						MessageHelper.SendLocalizedMessageTo( m_Ball, from, 1054117, 0x59 ); // You may only link your own pets to a Crystal Ball of Pet Summoning.
					}
					else if ( !creature.IsBonded )
					{
						MessageHelper.SendLocalizedMessageTo( m_Ball, from, 1054118, 0x59 ); // You must bond with your pet before it can be linked to a Crystal Ball of Pet Summoning.
					}
					else
					{
						MessageHelper.SendLocalizedMessageTo( m_Ball, from, 1054119, 0x59 ); // Your pet is now linked to this Crystal Ball of Pet Summoning.

						m_Ball.Pet = creature;
					}
				}
				else if ( targeted == m_Ball )
				{
					MessageHelper.SendLocalizedMessageTo( m_Ball, from, 1054115, 0x59 ); // The Crystal Ball of Pet Summoning cannot summon itself.
				}
				else
				{
					MessageHelper.SendLocalizedMessageTo( m_Ball, from, 1054116, 0x59 ); // Only pets can be linked to this Crystal Ball of Pet Summoning.
				}
			}
		}

		public void SummonPet( Mobile from )
		{
			BaseCreature pet = this.Pet;

			if ( Deleted || pet == null || this.RootParent != from )
				return;

			if ( Charges == 0 )
			{
				SendLocalizedMessageTo( from, 1054122 ); // The Crystal Ball darkens. It must be charged before it can be used again.
			}
			else if ( pet is BaseMount && ((BaseMount)pet).Rider == from )
			{
				MessageHelper.SendLocalizedMessageTo( this, from, 1054124, 0x36 ); // The Crystal Ball fills with a yellow mist. Why would you summon your pet while riding it?
			}
			else if ( pet.Map == Map.Internal && ( !pet.IsStabled || (from.Followers + pet.ControlSlots) > from.FollowersMax ) )
			{
				MessageHelper.SendLocalizedMessageTo( this, from, 1054125, 0x5 ); // The Crystal Ball fills with a blue mist. Your pet is not responding to the summons.
			}
			else if ( ( !pet.Controlled || pet.ControlMaster != from ) && !from.Stabled.Contains( pet ) )
			{
				MessageHelper.SendLocalizedMessageTo( this, from, 1054126, 0x8FD ); // The Crystal Ball fills with a grey mist. You are not the owner of the pet you are attempting to summon.
			}
			else if ( !pet.IsBonded )
			{
				MessageHelper.SendLocalizedMessageTo( this, from, 1054127, 0x22 ); // The Crystal Ball fills with a red mist. You appear to have let your bond to your pet deteriorate.
			}
			else if ( from.Map == Map.Underworld || SpellHelper.IsPandemonium( from.Map, from.Location ) || from.Region.IsPartOf( typeof( GroupDungeonRegion ) ) || from.Region.IsPartOf( typeof( Jail ) ) )
			{
				from.Send( new AsciiMessage( this.Serial, this.ItemID, MessageType.Regular, 0x22, 3, "", "You cannot summon your pet to this location." ) );
			}
			else
			{
				Charges--;

				if ( pet.IsStabled )
				{
					pet.SetControlMaster( from );

					if ( pet.Summoned )
						pet.SummonMaster = from;

					pet.ControlTarget = from;
					pet.ControlOrder = OrderType.Follow;

					pet.IsStabled = false;
					from.Stabled.Remove( pet );
				}

				pet.MoveToWorld( from.Location, from.Map );

				MessageHelper.SendLocalizedMessageTo( this, from, 1054128, 0x43 ); // The Crystal Ball fills with a green mist. Your pet has been summoned.
			}
		}

		public void UnlinkPet( Mobile from )
		{
			if ( !Deleted && Pet != null && this.RootParent == from )
			{
				Pet = null;

				SendLocalizedMessageTo( from, 1054120 ); // This crystal ball is no longer linked to a pet.
			}
		}

		public void UpdatePetName( Mobile from )
		{
			InternalUpdatePetName();
		}

		private void InternalUpdatePetName()
		{
			BaseCreature pet = this.Pet;

			if ( pet == null )
				m_PetName = "";
			else
				m_PetName = pet.Name;

			InvalidateProperties();
		}

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

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

			writer.WriteEncodedInt( (int) 1 ); // version

			writer.WriteEncodedInt( (int) m_Recharges );

			writer.WriteEncodedInt( (int) m_Charges );
			writer.Write( (Mobile) this.Pet );
			writer.Write( (string) m_PetName );
		}

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

			int version = reader.ReadEncodedInt();

			switch ( version )
			{
				case 1:
				{
					m_Recharges = reader.ReadEncodedInt();
					goto case 0;
				}
				case 0:
				{
					m_Charges = Math.Min( reader.ReadEncodedInt(), MaxCharges );
					this.Pet = (BaseCreature) reader.ReadMobile();
					m_PetName = reader.ReadString();
					break;
				}
			}
		}
	}
}
