using System;
using Server.Engines.Quests.Collector;
using Server.Items;
using Server.Mobiles;
using Server.Spells;

namespace Server.Engines.Harvest
{
    public class Fishing : HarvestSystem
    {
        private static Fishing _system;

        private static readonly MutateEntry[] _mutateTable =
        {
            new(80.0, 80.0, 4080.0, true, typeof(SpecialFishingNet)),
            new(80.0, 80.0, 4080.0, true, typeof(BigFish)),
            new(90.0, 80.0, 4080.0, true, typeof(TreasureMap)),
            new(100.0, 80.0, 4080.0, true, typeof(MessageInABottle)),
            new(
                0.0,
                125.0,
                -2375.0,
                false,
                typeof(PrizedFish),
                typeof(WondrousFish),
                typeof(TrulyRareFish),
                typeof(PeculiarFish)
            ),
            new(0.0, 105.0, -420.0, false, typeof(Boots), typeof(Shoes), typeof(Sandals), typeof(ThighBoots)),
            new(0.0, 200.0, -200.0, false, new Type[] { null })
        };

        private static readonly int[] _waterLandTiles =
        {
            0x00A8, 0x00AB,
            0x0136, 0x0137
        };

        private static readonly int[] waterStaticTiles =
        {
            0x1797, 0x179C,
            0x346E, 0x3485,
            0x3490, 0x34AB,
            0x34B5, 0x35D5
        };

        private static readonly int[] bodyParts = {
            0x1CDD, 0x1CE5, // arm
            0x1CE0, 0x1CE8, // torso
            0x1CE1, 0x1CE9, // head
            0x1CE2, 0x1CEC  // leg
        };

        private static readonly int[] boneParts = {
            0x1AE0, 0x1AE1, 0x1AE2, 0x1AE3, 0x1AE4,                         // skulls
            0x1B09, 0x1B0A, 0x1B0B, 0x1B0C, 0x1B0D, 0x1B0E, 0x1B0F, 0x1B10, // bone piles
            0x1B15, 0x1B16                                                  // pelvis bones
        };

        private static readonly int[] miscItems = {
            0x1EB5,                        // unfinished barrel
            0xA2A,                         // stool
            0xC1F,                         // broken clock
            0x1047, 0x1048,                // globe
            0x1EB1, 0x1EB2, 0x1EB3, 0x1EB4 // barrel staves
        };

        private Fishing()
        {
            var fish = new HarvestDefinition
            {
                BankWidth = 8,
                BankHeight = 8,
                MinTotal = 5,
                MaxTotal = 15,
                MinRespawn = TimeSpan.FromMinutes(10.0),
                MaxRespawn = TimeSpan.FromMinutes(20.0),
                Skill = SkillName.Fishing,
                LandTiles = _waterLandTiles,
                StaticTiles = waterStaticTiles,
                RangedTiles = true,
                MaxRange = 4,
                ConsumedPerHarvest = 1,
                ConsumedPerVeridiaHarvest = 1,
                EffectActions = new[] { 12 },
                EffectSounds = Array.Empty<int>(),
                EffectCounts = new[] { 1 },
                EffectDelay = TimeSpan.Zero,
                EffectSoundDelay = TimeSpan.FromSeconds(8.0),
                NoResourcesMessage = 503172,     // The fish don't seem to be biting here.
                FailMessage = 503171,            // You fish a while, but fail to catch anything.
                TimedOutOfRangeMessage = 500976, // You need to be closer to the water to fish!
                OutOfRangeMessage = 500976,      // You need to be closer to the water to fish!
                PackFullMessage = 503176,        // You do not have room in your backpack for a fish.
                ToolBrokeMessage = 503174        // You broke your fishing pole.
            };

            HarvestResource[] res =
            {
                new(00.0, 00.0, 100.0, 1043297, typeof(Fish))
            };

            HarvestVein[] veins =
            {
                new(1000, 0.0, res[0], null)
            };

            fish.Resources = res;
            fish.Veins = veins;

            if (Core.ML)
            {
                fish.BonusResources = new[]
                {
                    new BonusHarvestResource(0, 99.4, null, null), // set to same chance as mining ml gems
                    new BonusHarvestResource(80.0, .6, 1072597, typeof(WhitePearl))
                };
            }

            Definitions = new[] { fish };
        }

        public static Fishing System => _system ??= new Fishing();

        public override void OnConcurrentHarvest(Mobile from, Item tool, HarvestDefinition def, object toHarvest)
        {
            from.SendLocalizedMessage(500972); // You are already fishing.
        }

        public override bool SpecialHarvest(Mobile from, Item tool, HarvestDefinition def, Map map, Point3D loc)
        {
            if (from is PlayerMobile player)
            {
                var qs = player.Quest;

                if (qs is CollectorQuest)
                {
                    var obj = qs.FindObjective<FishPearlsObjective>();

                    if (obj?.Completed == false)
                    {
                        if (Utility.RandomBool())
                        {
                            // You pull a shellfish out of the water, and find a rainbow pearl inside of it.
                            player.SendLocalizedMessage(1055086, "", 0x59);
                            obj.CurProgress++;
                        }
                        else
                        {
                            // You pull a shellfish out of the water, but it doesn't have a rainbow pearl.
                            player.SendLocalizedMessage(1055087, "", 0x2C);
                        }

                        return true;
                    }
                }
            }

            return false;
        }

        public override Type MutateType(
            Type type, Mobile from, Item tool, HarvestDefinition def, Map map, Point3D loc,
            HarvestResource resource
        )
        {
            var deepWater = SpecialFishingNet.FullValidation(map, loc.X, loc.Y);

            var skillBase = from.Skills.Fishing.Base;
            var skillValue = from.Skills.Fishing.Value;

            for (var i = 0; i < _mutateTable.Length; ++i)
            {
                var entry = _mutateTable[i];

                if (!deepWater && entry.m_DeepWater)
                {
                    continue;
                }

                if (skillBase >= entry.m_ReqSkill)
                {
                    var chance = (skillValue - entry.m_MinSkill) / (entry.m_MaxSkill - entry.m_MinSkill);

                    if (chance > Utility.RandomDouble())
                    {
                        return entry.m_Types.RandomElement();
                    }
                }
            }

            return type;
        }

        public override bool CheckResources(Mobile from, Item tool, HarvestDefinition def, Map map, Point3D loc, bool timed)
        {
            var pack = from.Backpack;

            if (pack != null)
            {
                foreach (var sos in pack.FindItemsByType<SOS>())
                {
                    if ((from.Map == Map.Veridia || from.Map == Map.Underworld) && from.InRange(sos.TargetLocation, 60))
                    {
                        return true;
                    }
                }
            }

            return base.CheckResources(from, tool, def, map, loc, timed);
        }

        public override Item Construct(Type type, Mobile from)
        {
            if (type == typeof(TreasureMap))
            {
                int level;
                if (from is PlayerMobile mobile && mobile.Young && mobile.Map == Map.Underworld &&
                    TreasureMap.IsInHavenIsland(from))
                {
                    level = 0;
                }
                else
                {
                    level = 1;
                }

                return new TreasureMap(level, from.Map == Map.Veridia ? Map.Veridia : Map.Underworld);
            }

            if (type == typeof(MessageInABottle))
            {
                return new MessageInABottle(from.Map == Map.Veridia ? Map.Veridia : Map.Underworld);
            }

            var pack = from.Backpack;

            if (pack != null)
            {
                // We don't have to queue since we are returning on the first SOS.
                foreach (var sos in pack.FindItemsByType<SOS>())
                {
                    if ((from.Map == Map.Veridia || from.Map == Map.Underworld) && from.InRange(sos.TargetLocation, 60))
                    {
                        Item preLoot = null;

                        switch (Utility.Random(8))
                        {
                            case 0: // Body parts
                                {
                                    preLoot = new ShipwreckedItem(bodyParts.RandomElement());
                                    break;
                                }
                            case 1: // Bone parts
                                {
                                    preLoot = new ShipwreckedItem(boneParts.RandomElement());
                                    break;
                                }
                            case 2: // Paintings and portraits
                                {
                                    preLoot = new ShipwreckedItem(Utility.Random(0xE9F, 10));
                                    break;
                                }
                            case 3: // Pillows
                                {
                                    preLoot = new ShipwreckedItem(Utility.Random(0x13A4, 11));
                                    break;
                                }
                            case 4: // Shells
                                {
                                    preLoot = new ShipwreckedItem(Utility.Random(0xFC4, 9));
                                    break;
                                }
                            case 5: // Hats
                                {
                                    preLoot = Utility.RandomBool() ? new SkullCap() : new TricorneHat();
                                    break;
                                }
                            case 6: // Misc
                                {
                                    var rand = Utility.Random(miscItems.Length + 1);

                                    preLoot = rand == miscItems.Length
                                        ? new Candelabra()
                                        : new ShipwreckedItem(miscItems[rand]);

                                    break;
                                }
                        }

                        if (preLoot != null)
                        {
                            ((IShipwreckedItem)preLoot).IsShipwreckedItem = true;
                            return preLoot;
                        }

                        LockableContainer chest = Utility.RandomBool() ? new MetalGoldenChest() : new WoodenChest();

                        if (sos.IsAncient)
                        {
                            chest.Hue = 0x481;
                        }

                        TreasureMapChest.Fill(chest, Math.Max(1, Math.Min(4, sos.Level)));

                        chest.DropItem(sos.IsAncient ? new FabledFishingNet() : new SpecialFishingNet());

                        chest.Movable = true;
                        chest.Locked = false;
                        chest.TrapType = TrapType.None;
                        chest.TrapPower = 0;
                        chest.TrapLevel = 0;

                        sos.Delete();

                        return chest;
                    }
                }
            }

            return base.Construct(type, from);
        }

        public override bool Give(Mobile m, Item item, bool placeAtFeet)
        {
            if (item is TreasureMap or MessageInABottle or SpecialFishingNet)
            {
                BaseCreature serp;

                if (Utility.RandomDouble() < 0.25)
                {
                    serp = new DeepSeaSerpent();
                }
                else
                {
                    serp = new SeaSerpent();
                }

                int x = m.X, y = m.Y;

                var map = m.Map;

                for (var i = 0; map != null && i < 20; ++i)
                {
                    var tx = m.X - 10 + Utility.Random(21);
                    var ty = m.Y - 10 + Utility.Random(21);

                    var t = map.Tiles.GetLandTile(tx, ty);

                    if (t.Z == -5 && (t.ID >= 0xA8 && t.ID <= 0xAB || t.ID >= 0x136 && t.ID <= 0x137) &&
                        !SpellHelper.CheckMulti(new Point3D(tx, ty, -5), map))
                    {
                        x = tx;
                        y = ty;
                        break;
                    }
                }

                serp.MoveToWorld(new Point3D(x, y, -5), map);

                serp.Home = serp.Location;
                serp.RangeHome = 10;

                serp.PackItem(item);

                m.SendLocalizedMessage(503170); // Uh oh! That doesn't look like a fish!

                return true; // we don't want to give the item to the player, it's on the serpent
            }

            return base.Give(m, item, placeAtFeet || item is BigFish or WoodenChest or MetalGoldenChest);
        }

        public override void SendSuccessTo(Mobile from, Item item, HarvestResource resource)
        {
            if (item is BigFish fish)
            {
                from.SendLocalizedMessage(1042635); // Your fishing pole bends as you pull a big fish from the depths!
                fish.Fisher = from;
            }
            else if (item is WoodenChest or MetalGoldenChest)
            {
                from.SendLocalizedMessage(503175); // You pull up a heavy chest from the depths of the ocean!
            }
            else
            {
                int number;
                string name;

                if (item is BaseMagicFish)
                {
                    number = 1008124;
                    name = "a mess of small fish";
                }
                else if (item is Fish)
                {
                    number = 1008124;
                    name = item.ItemData.Name;
                }
                else if (item is BaseShoes)
                {
                    number = 1008124;
                    name = item.ItemData.Name;
                }
                else if (item is TreasureMap)
                {
                    number = 1008125;
                    name = "a sodden piece of parchment";
                }
                else if (item is MessageInABottle)
                {
                    number = 1008125;
                    name = "a bottle, with a message in it";
                }
                else if (item is SpecialFishingNet)
                {
                    number = 1008125;
                    name = "a special fishing net"; // TODO: this is just a guess--what should it really be named?
                }
                else
                {
                    number = 1043297;

                    if ((item.ItemData.Flags & TileFlag.ArticleA) != 0)
                    {
                        name = $"a {item.ItemData.Name}";
                    }
                    else if ((item.ItemData.Flags & TileFlag.ArticleAn) != 0)
                    {
                        name = $"an {item.ItemData.Name}";
                    }
                    else
                    {
                        name = item.ItemData.Name;
                    }
                }

                var ns = from.NetState;

                if (number == 1043297 || ns?.HighSeas == true)
                {
                    from.SendLocalizedMessage(number, name);
                }
                else
                {
                    from.SendLocalizedMessage(number, true, name);
                }
            }
        }

        public override void OnHarvestStarted(Mobile from, Item tool, HarvestDefinition def, object toHarvest)
        {
            base.OnHarvestStarted(from, tool, def, toHarvest);

            if (GetHarvestDetails(from, tool, toHarvest, out _, out var map, out var loc, out _))
            {
                Timer.StartTimer(
                    TimeSpan.FromSeconds(1.5),
                    () =>
                    {
                        if (Core.ML)
                        {
                            from.RevealingAction();
                        }

                        Effects.SendLocationEffect(loc, map, 0x352D, 16, 4);
                        Effects.PlaySound(loc, map, 0x364);
                    }
                );
            }
        }

        public override void OnHarvestFinished(
            Mobile from, Item tool, HarvestDefinition def, HarvestVein vein,
            HarvestBank bank, HarvestResource resource, object harvested
        )
        {
            base.OnHarvestFinished(from, tool, def, vein, bank, resource, harvested);

            if (Core.ML)
            {
                from.RevealingAction();
            }
        }

        public override object GetLock(Mobile from, Item tool, HarvestDefinition def, object toHarvest) => this;

        public override bool BeginHarvesting(Mobile from, Item tool)
        {
            if (!base.BeginHarvesting(from, tool))
            {
                return false;
            }

            from.SendLocalizedMessage(500974); // What water do you want to fish in?
            return true;
        }

        public override bool CheckHarvest(Mobile from, Item tool)
        {
            if (!base.CheckHarvest(from, tool))
            {
                return false;
            }

            if (from.Mounted)
            {
                from.SendLocalizedMessage(500971); // You can't fish while riding!
                return false;
            }

            return true;
        }

        public override bool CheckHarvest(Mobile from, Item tool, HarvestDefinition def, object toHarvest)
        {
            if (!base.CheckHarvest(from, tool, def, toHarvest))
            {
                return false;
            }

            if (from.Mounted)
            {
                from.SendLocalizedMessage(500971); // You can't fish while riding!
                return false;
            }

            return true;
        }

        private class MutateEntry
        {
            public readonly bool m_DeepWater;
            public readonly double m_MaxSkill;
            public readonly double m_MinSkill;
            public readonly double m_ReqSkill;
            public readonly Type[] m_Types;

            public MutateEntry(double reqSkill, double minSkill, double maxSkill, bool deepWater, params Type[] types)
            {
                m_ReqSkill = reqSkill;
                m_MinSkill = minSkill;
                m_MaxSkill = maxSkill;
                m_DeepWater = deepWater;
                m_Types = types;
            }
        }
    }
}