using Server.Items;
using Server.Misc;
using Server.Mobiles;
using Server.Multis;
using Server.Network;
using Server.Targeting;
using System;

namespace Server.Spells.Seventh
{
    public class GateTravelSpell : MagerySpell
    {
        private static readonly SpellInfo m_Info = new SpellInfo(
            "Gate Travel", "Vas Rel Por",
            263,
            9032,
            Reagent.BlackPearl,
            Reagent.MandrakeRoot,
            Reagent.SulfurousAsh);

        private readonly RunebookEntry m_Entry;

        public GateTravelSpell(Mobile caster, Item scroll)
            : this(caster, scroll, null)
        {
        }

        public GateTravelSpell(Mobile caster, Item scroll, RunebookEntry entry)
            : base(caster, scroll, m_Info)
        {
            m_Entry = entry;
        }

        public override SpellCircle Circle => SpellCircle.Seventh;
        public override void OnCast()
        {
            if (m_Entry == null)
            {
                Caster.Target = new InternalTarget(this);
            }
            else
            {
                if (m_Entry.Type == RecallRuneType.Ship)
                {
                    Effect(m_Entry.Galleon);
                }
                else
                {
                    Effect(m_Entry.Location, m_Entry.Map, true, false);
                }
            }
        }

        public override bool CheckCast()
        {
            if (Engines.VvV.VvVSigil.ExistsOn(Caster))
            {
                Caster.SendLocalizedMessage(1061632); // You can't do that while carrying the sigil.
                return false;
            }
            else if (Engines.CityLoyalty.CityTradeSystem.HasTrade(Caster))
            {
                Caster.SendLocalizedMessage(1151733); // You cannot do that while carrying a Trade Order.
                return false;
            }
            else if (Caster.Criminal)
            {
                Caster.SendLocalizedMessage(1005561, "", 0x22); // Thou'rt a criminal and cannot escape so easily.
                return false;
            }
            else if (SpellHelper.CheckCombat(Caster))
            {
                Caster.SendLocalizedMessage(1005564, "", 0x22); // Wouldst thou flee during the heat of battle??
                return false;
            }

            return SpellHelper.CheckTravel(Caster, TravelCheckType.GateFrom);
        }

        public void Effect(BaseGalleon galleon)
        {
            if (galleon == null)
            {
                Caster.SendLocalizedMessage(1116767); // The ship could not be located.
            }
            else if (galleon.Map == Map.Internal)
            {
                Caster.SendLocalizedMessage(1149569); // That ship is in dry dock.
            }
            else if (!galleon.HasAccess(Caster))
            {
                Caster.SendLocalizedMessage(1116617); // You do not have permission to board this ship.
            }
            else
            {
                Effect(galleon.GetMarkedLocation(), galleon.Map, false, true);
            }
        }

        public void Effect(Point3D loc, Map map, bool checkMulti, bool isboatkey = false)
        {
            if (Engines.VvV.VvVSigil.ExistsOn(Caster))
            {
                Caster.SendLocalizedMessage(1061632); // You can't do that while carrying the sigil.
            }
            else if (map == null)
            {
                Caster.SendLocalizedMessage(1005570); // You can not gate to another facet.
            }
            else if (!SpellHelper.CheckTravel(Caster, TravelCheckType.GateFrom))
            {
            }
            else if (!SpellHelper.CheckTravel(Caster, map, loc, TravelCheckType.GateTo))
            {
            }
            else if (map == Map.Felucca && Caster is PlayerMobile && ((PlayerMobile)Caster).Young)
            {
                Caster.SendLocalizedMessage(1049543); // You decide against traveling to Felucca while you are still young.
            }
            else if (SpellHelper.RestrictRedTravel && Caster.Murderer && map.Rules != MapRules.FeluccaRules && !Siege.SiegeShard)
            {
                Caster.SendLocalizedMessage(1019004); // You are not allowed to travel there.
            }
            else if (Caster.Criminal)
            {
                Caster.SendLocalizedMessage(1005561, "", 0x22); // Thou'rt a criminal and cannot escape so easily.
            }
            else if (SpellHelper.CheckCombat(Caster))
            {
                Caster.SendLocalizedMessage(1005564, "", 0x22); // Wouldst thou flee during the heat of battle??
            }
            else if (!map.CanSpawnMobile(loc.X, loc.Y, loc.Z) && !isboatkey)
            {
                Caster.SendLocalizedMessage(501942); // That location is blocked.
            }
            else if ((checkMulti && SpellHelper.CheckMulti(loc, map)) && !isboatkey)
            {
                Caster.SendLocalizedMessage(501942); // That location is blocked.
            }
            else if (GateExistsAt(map, loc) || GateExistsAt(Caster.Map, Caster.Location)) // SE restricted stacking gates
            {
                Caster.SendLocalizedMessage(1071242); // There is already a gate there.
            }
            else if (Engines.CityLoyalty.CityTradeSystem.HasTrade(Caster))
            {
                Caster.SendLocalizedMessage(1151733); // You cannot do that while carrying a Trade Order.
            }
            else if (CheckSequence())
            {
                Timer.DelayCall(TimeSpan.FromSeconds(1), () =>
                {
                    Caster.SendLocalizedMessage(501024); // You open a magical gate to another location

                    Effects.PlaySound(Caster.Location, Caster.Map, 0x20E);

                    InternalItem firstGate = new InternalItem(loc, map);
                    firstGate.MoveToWorld(Caster.Location, Caster.Map);

                    Effects.PlaySound(loc, map, 0x20E);

                    InternalItem secondGate = new InternalItem(Caster.Location, Caster.Map);
                    secondGate.MoveToWorld(loc, map);

                    firstGate.LinkedGate = secondGate;
                    secondGate.LinkedGate = firstGate;

                    firstGate.BoatGate = BaseBoat.FindBoatAt(firstGate, firstGate.Map) != null;
                    secondGate.BoatGate = BaseBoat.FindBoatAt(secondGate, secondGate.Map) != null;
                });
            }

            FinishSequence();
        }

        private bool GateExistsAt(Map map, Point3D loc)
        {
            bool _gateFound = false;

            IPooledEnumerable eable = map.GetItemsInRange(loc, 0);
            foreach (Item item in eable)
            {
                if (item is Moongate || item is PublicMoongate)
                {
                    _gateFound = true;
                    break;
                }
            }
            eable.Free();

            return _gateFound;
        }

        [DispellableField]
        private class InternalItem : Moongate
        {
            [CommandProperty(AccessLevel.GameMaster)]
            public Moongate LinkedGate { get; set; }

            [CommandProperty(AccessLevel.GameMaster)]
            public bool BoatGate { get; set; }

            public InternalItem(Point3D target, Map map)
                : base(target, map)
            {
                Map = map;

                if (ShowFeluccaWarning && map == Map.Felucca)
                    ItemID = 0xDDA;

                Dispellable = true;

                InternalTimer t = new InternalTimer(this);
                t.Start();
            }

            public override void UseGate(Mobile m)
            {
                if (LinkedGate == null || !(LinkedGate is InternalItem) || !((InternalItem)LinkedGate).BoatGate || !LinkedGate.Deleted)
                {
                    if (LinkedGate != null && ((InternalItem)LinkedGate).BoatGate)
                    {
                        BaseBoat boat = BaseBoat.FindBoatAt(LinkedGate);

                        if (boat != null && !boat.HasAccess(m))
                        {
                            m.SendLocalizedMessage(1116617); // You do not have permission to board this ship.
                            return;
                        }
                    }

                    base.UseGate(m);
                }
                else
                    m.SendMessage("The other gate no longer exists.");
            }

            public override void OnLocationChange(Point3D old)
            {
                if (!BoatGate)
                    base.OnLocationChange(old);

                else if (LinkedGate != null)
                    LinkedGate.Target = Location;
            }

            public override void OnMapChange()
            {
                if (!BoatGate)
                    base.OnMapChange();

                else if (LinkedGate != null)
                    LinkedGate.TargetMap = Map;
            }

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

            public override bool ShowFeluccaWarning => true;
            public override void Serialize(GenericWriter writer)
            {
                base.Serialize(writer);
            }

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

                Delete();
            }

            private class InternalTimer : Timer
            {
                private readonly Item m_Item;

                public InternalTimer(Item item)
                    : base(TimeSpan.FromSeconds(30.0))
                {
                    Priority = TimerPriority.OneSecond;
                    m_Item = item;
                }

                protected override void OnTick()
                {
                    m_Item.Delete();
                }
            }
        }

        private class InternalTarget : Target
        {
            private readonly GateTravelSpell m_Owner;

            public InternalTarget(GateTravelSpell owner)
                : base(12, false, TargetFlags.None)
            {
                m_Owner = owner;

                owner.Caster.LocalOverheadMessage(MessageType.Regular, 0x3B2, 501029); // Select Marked item.
            }

            protected override void OnTarget(Mobile from, object o)
            {
                if (o is RecallRune)
                {
                    RecallRune rune = (RecallRune)o;

                    if (rune.Marked)
                    {
                        if (rune.Type == RecallRuneType.Ship)
                        {
                            m_Owner.Effect(rune.Galleon);
                        }
                        else
                        {
                            m_Owner.Effect(rune.Target, rune.TargetMap, true);
                        }
                    }
                    else
                    {
                        from.SendLocalizedMessage(501805); // That rune is not yet marked.
                    }
                }
                else if (o is Runebook)
                {
                    RunebookEntry e = ((Runebook)o).Default;

                    if (e != null)
                    {
                        if (e.Type == RecallRuneType.Ship)
                        {
                            m_Owner.Effect(e.Galleon);
                        }
                        else
                        {
                            m_Owner.Effect(e.Location, e.Map, true);
                        }
                    }
                    else
                    {
                        from.SendLocalizedMessage(502354); // Target is not marked.
                    }
                }
                else if (o is Engines.NewMagincia.WritOfLease)
                {
                    Engines.NewMagincia.WritOfLease lease = (Engines.NewMagincia.WritOfLease)o;

                    if (lease.RecallLoc != Point3D.Zero && lease.Facet != null && lease.Facet != Map.Internal)
                        m_Owner.Effect(lease.RecallLoc, lease.Facet, false);
                    else
                        from.Send(new MessageLocalized(from.Serial, from.Body, MessageType.Regular, 0x3B2, 3, 502357, from.Name, "")); // I can not recall from that object.
                }
                else
                {
                    from.Send(new MessageLocalized(from.Serial, from.Body, MessageType.Regular, 0x3B2, 3, 501030, from.Name, "")); // I can not gate travel from that object.
                }
            }

            protected override void OnNonlocalTarget(Mobile from, object o)
            {
            }

            protected override void OnTargetFinish(Mobile from)
            {
                m_Owner.FinishSequence();
            }
        }
    }
}