//#define USE_DUNGEONBUDDY_DLL

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Runtime.InteropServices;
using CommonBehaviors.Actions;
using Styx;
using Styx.Common;
using Styx.Common.Helpers;
using Styx.CommonBot;
using Styx.CommonBot.Frames;
using Styx.CommonBot.POI;
using Styx.Helpers;
using Styx.Patchables;
using Styx.Pathing;
using Styx.TreeSharp;
using Styx.WoWInternals;
using Styx.WoWInternals.WoWObjects;
using Action = Styx.TreeSharp.Action;
#if USE_DUNGEONBUDDY_DLL
using Bots.DungeonBuddyDll;
using Bots.DungeonBuddyDll.Profiles;
using Bots.DungeonBuddyDll.Attributes;
using Bots.DungeonBuddyDll.Helpers;

namespace Bots.DungeonBuddyDll.Dungeon_Scripts.Mists_of_Pandaria
#else
    using Bots.DungeonBuddy.Profiles;
    using Bots.DungeonBuddy.Attributes;
    using Bots.DungeonBuddy.Helpers;
namespace Bots.DungeonBuddy.Dungeon_Scripts.Mists_of_Pandaria
#endif
{
    public class ALittlePatienceAlliance : Dungeon
    {
        #region Overrides of Dungeon

        public override uint DungeonId
        {
            get { return 589; }
        }

        public override void RemoveTargetsFilter(List<WoWObject> units)
        {
            units.RemoveAll(
                ret =>
                {
                    var unit = ret.ToUnit();
                    if (unit != null)
                    {
                        if (unit.Entry == KorkronCommandoId && unit.HasAura("Whirlwind") && Me.IsMelee())
                            return true;
                        if (unit.Entry == KorkronAssailantId)
                            return true;
                    }
                    return false;
                });
        }

        public override void IncludeTargetsFilter(List<WoWObject> incomingunits, HashSet<WoWObject> outgoingunits)
        {
            if (Me.HasAura("Nodded Off"))
                _seekSpiritKissedSpirtTimer.Reset();
            foreach (var obj in incomingunits)
            {
                var unit = obj as WoWUnit;
                if (unit != null)
                {
                    if (unit.Entry == SpiritKissedSpriteId && !Me.Combat && !_seekSpiritKissedSpirtTimer.IsFinished && !Me.BagItems.Any(i => i.Entry == SpiritKissedWaterId) &&
                        Me.IsTank())
                        outgoingunits.Add(unit);
                }
            }
        }

        public override void WeighTargetsFilter(List<Targeting.TargetPriority> units)
        {
            foreach (var priority in units)
            {
                var unit = priority.Object as WoWUnit;
                if (unit != null)
                {
                    if (unit.Entry == SpiritKissedSpriteId)
                        priority.Score = 200 - unit.Distance;
                }
            }
        }

        public override void OnEnter()
        {
            campLoc = WoWPoint.Zero;
            waitForAttackTimer = null;
        }

        #endregion

        private const uint CommanderScargashId = 68474;
        private const uint SwampGasId = 68816;
        private readonly WaitTimer _refreshLandMarksTimer = new WaitTimer(TimeSpan.FromSeconds(1));
        private WaitTimer waitForAttackTimer;

        private static LocalPlayer Me
        {
            get { return StyxWoW.Me; }
        }

        private List<WoWLandMark> LandMarks
        {
            get
            {
                if (_refreshLandMarksTimer.IsFinished)
                {
                    _refreshLandMarksTimer.Reset();
                    StyxWoW.Landmarks.Refresh();
                }
                return StyxWoW.Landmarks.LandmarkList;
            }
        }

        [EncounterHandler(0)]
        public Composite RootEncounter()
        {
            AddAvoidObject(ctx => true, 5, SwampGasId);
            return new PrioritySelector();
        }

        [EncounterHandler(68474, "Commander Scargash")]
        public Composite CommanderScargashEncounter()
        {
            AddAvoidObject(ctx => true, o => Me.IsMoving ? 25 : 15, o => o.Entry == CommanderScargashId && o.ToUnit().CurrentTargetGuid == Me.Guid);
            WoWUnit boss = null;
            return new PrioritySelector(ctx => boss = ctx as WoWUnit);
        }

        [ScenarioStage(2)]
        public Composite StageTwoBehavior()
        {
            return new PrioritySelector(
                new Decorator(
                    ctx => waitForAttackTimer == null,
                    new Action(
                        ctx =>
                        {
                            waitForAttackTimer = new WaitTimer(TimeSpan.FromSeconds(20));
                            waitForAttackTimer.Reset();
                        })),
                new Decorator(ctx => Targeting.Instance.IsEmpty() && !waitForAttackTimer.IsFinished, new ActionAlwaysSucceed()));
        }

        #region Stage One

        private const uint KorkronAssailantId = 67818;
        private const uint SpiritKissedWaterId = 92751;
        private const uint MeatyHaunchId = 92444;
        private const uint BrittleRootId = 91906;
        private const uint BattleRationsId = 91971;
        private const uint SnakeOilId = 92470;
        private const uint SpiritKissedSpriteId = 68347;
        private const uint LiquidFireId = 92745;
        private const uint JungleHobsId = 92750;
        private const uint MasterBrownstoneId = 68376;
        private const string MapVehicleLocationLuaFormat = @"local _, left, top, right, bot = GetCurrentMapZone() 
local x, y,_,_,i = GetBattlefieldVehicleInfo({0})
y, x =(1.0-x)*left+x*right , (1.0-y)*top+y*bot 
local isDone=0;
if i == 'Trap Gold' then isDone = 1 end
return x,y,isDone
";
        private const uint PandarenConstructionSiteId = 68895;

        private const uint NourishmentId = 68423;
        private const uint WoodpileId = 68419;
        private const uint FoodId = 68672;
        private const uint MoundofSoilId = 68709;
        private const uint BurgeoningSaplingId = 68699;
        private const uint KorkronCommandoId = 67688;
        private const uint CannonBarrelId = 68100;
        private const uint SustenanceId = 68082;
        private const uint CannonballsId = 68112;
        private const uint KrasariIronSupplyId = 68343;
        private const uint VittlesId = 68270;
        private const uint PandarenKegId = 68269;
        private const uint DragonCannonId = 68279;
        private const uint BlastbrewCaudronId = 68271;
        private const uint WakenedMoguId = 68102;

        private const uint SnacksId = 68481;

        private const uint RiverbladeMarauderId = 68775;
        private const uint BogrotId = 67974;

        private readonly uint[] ConstructionSitesIds = new[]
                                                       {
                                                           NourishmentId, WoodpileId, FoodId, MoundofSoilId, BurgeoningSaplingId, CannonBarrelId, SustenanceId, CannonballsId,
                                                           KrasariIronSupplyId, VittlesId, PandarenKegId, DragonCannonId, BlastbrewCaudronId, SnacksId, PandarenConstructionSiteId
                                                       };

        private readonly uint[] _attackerIds = new[] { RiverbladeMarauderId, BogrotId, WakenedMoguId, KorkronCommandoId };
        private readonly uint[] _stageOneItems = new[] { MeatyHaunchId, BrittleRootId, BattleRationsId, LiquidFireId };
        private WaitTimer _seekSpiritKissedSpirtTimer = new WaitTimer(TimeSpan.FromSeconds(15));

        private WoWPoint campLoc = WoWPoint.Zero;

        [ScenarioStage(1, "Prepare the Defenses")]
        public Composite StageOneBehavior()
        {
            ScenarioStage stage = null;
            return new PrioritySelector(ctx => stage = ctx as ScenarioStage, StartEventBehavior(), DefendCampsBehavior());
        }

        private Composite StartEventBehavior()
        {
            const int gossipIconIndex = 193;
            WoWLandMark gossipLandMark = null;
            WoWUnit gossipNpc = null;
            return
                new PrioritySelector(
                    new Decorator(
                        ctx =>
                        Targeting.Instance.IsEmpty() &&
                        (gossipLandMark = LandMarks.Where(l => l.TextureIndex == gossipIconIndex).OrderBy(l => l.Location.DistanceSqr(Me.Location)).FirstOrDefault()) != null,
                        new PrioritySelector(
                            ctx => gossipNpc = ObjectManager.GetObjectsOfType<WoWUnit>().FirstOrDefault(u => u.CanGossip && u.Location.Distance(gossipLandMark.Location) < 20),
                            new Decorator(ctx => gossipNpc == null, new Action(ctx => Navigator.MoveTo(gossipLandMark.Location))),
                            new Decorator(ctx => gossipNpc != null, ScriptHelpers.CreateTalkToNpc(() => gossipNpc)))));
        }

        private Composite DefendCampsBehavior()
        {
            WoWItem item = null;
            WoWUnit site = null;
            WoWUnit enemy = null;
            WoWUnit masterBrownstone = null;
            var masterBrownstoneLoc = new WoWPoint(-1239.139, 877.9915, 13.91179);

            return new PrioritySelector(
                new Decorator(ctx => campLoc == WoWPoint.Zero, new Action(ctx => campLoc = GetNextCampLocation())),
                new Decorator(
                    ctx => campLoc != WoWPoint.Zero && Targeting.Instance.IsEmpty(),
                    new PrioritySelector(
                        ctx =>
                        {
                            item = Me.BagItems.FirstOrDefault(i => _stageOneItems.Contains(i.Entry));
                            return
                                site =
                                ObjectManager.GetObjectsOfType<WoWUnit>()
                                             .Where(
                                                 u =>
                                                 ConstructionSitesIds.Contains(u.Entry) && u.Location.Distance(campLoc) < 100 &&
                                                 Navigator.CanNavigateFully(Me.Location, u.Location))
                                             .OrderBy(u => u.DistanceSqr)
                                             .FirstOrDefault();
                        },
                // clear camp of hostile NPCs
                        new Decorator(
                            ctx =>
                            (enemy = ScriptHelpers.GetUnfriendlyNpsAtLocation(() => campLoc, 150, u => _attackerIds.Contains(u.Entry)).FirstOrDefault()) != null &&
                            BotPoi.Current.NoPoi(),
                            new Action(ctx => ScriptHelpers.MoveTankTo(enemy.Location))),
                // dump a bucket of water on Master Brownstone.
                        new Decorator(
                            ctx => Me.HasAura("Nodded Off") && Me.BagItems.Any(i => i.Entry == SpiritKissedWaterId),
                            new PrioritySelector(
                                ctx => masterBrownstone = ObjectManager.GetObjectsOfType<WoWUnit>().FirstOrDefault(u => u.Entry == MasterBrownstoneId),
                                new Decorator(
                                    ctx => masterBrownstone != null && masterBrownstone.WithinInteractRange,
                                    new Action(
                                        ctx =>
                                        {
                                            masterBrownstone.Interact();
                                            _seekSpiritKissedSpirtTimer.Stop();
                                        })),
                                new Decorator(
                                    ctx => masterBrownstone != null && !masterBrownstone.WithinInteractRange, new Action(ctx => Navigator.MoveTo(masterBrownstone.Location))),
                                new Decorator(ctx => masterBrownstone == null, new Action(ctx => Navigator.MoveTo(masterBrownstoneLoc))))),
                // use items at camp..
                        new Decorator(
                            ctx => item != null && site != null,
                            new PrioritySelector(
                                new Decorator(ctx => site.Distance > 35, new Action(ctx => ScriptHelpers.MoveTankTo(site.Location))),
                                new Decorator(ctx => site.Distance <= 35 && site.Distance > 3, new Action(ctx => Navigator.MoveTo(site.Location))),
                                new Decorator(
                                    ctx => site.Distance <= 3,
                                    new PrioritySelector(
                                        new PrioritySelector(
                                            new Decorator(ctx => Me.IsMoving, new Action(ctx => WoWMovement.MoveStop())),
                                            new Decorator(ctx => Me.Mounted, new Action(ctx => Mount.Dismount())),
                                            new Action(ctx => item.UseContainerItem())))))),
                // move to next camp
                        new Decorator(
                            ctx => item == null || site == null,
                            new PrioritySelector(
                                new Decorator(ctx => campLoc.Distance(Me.Location) > 5, new Action(ctx => ScriptHelpers.MoveTankTo(campLoc))),
                                new Decorator(ctx => campLoc.Distance(Me.Location) <= 5, new Action(ctx => campLoc = GetNextCampLocation())))))));
        }

        private WoWPoint GetNextCampLocation()
        {
            return GetCampLocations().OrderByDescending(l => l.Distance2DSqr(Me.Location)).FirstOrDefault();
        }

        [ObjectHandler(216227, "Brittle Root", ObjectRange = 45)]
        public Composite BrittleRootHandler()
        {
            WoWGameObject root = null;
            return new PrioritySelector(
                ctx => root = ctx as WoWGameObject,
                new Decorator(
                    ctx => Targeting.Instance.IsEmpty() && GetItemCount(BrittleRootId) < 5 && ScriptHelpers.CurrentScenarioInfo.CurrentStageNumber == 1,
                    new PrioritySelector(
                        new Decorator(ctx => root.WithinInteractRange, new Action(ctx => root.Interact())),
                        new Decorator(ctx => !root.WithinInteractRange, new Action(ctx => Navigator.MoveTo(root.Location))))));
        }

        private int GetItemCount(uint itemId)
        {
            return (int)Me.BagItems.Sum(i => i != null && i.ItemInfo != null && i.Entry == itemId ? i.StackCount : 0);
        }

        [EncounterHandler(68102, "Wakened Mogu")]
        public Composite WakenedMoguEncounter()
        {
            WoWUnit unit = null;
            return new PrioritySelector(ctx => unit = ctx as WoWUnit);
        }

        [EncounterHandler(67688, "Kor'kron Commando")]
        public Composite KorkronCommandoEncounter()
        {
            WoWUnit unit = null;
            AddAvoidObject(ctx => true, 8, o => o.Entry == KorkronCommandoId && o.ToUnit().HasAura("Whirlwind"));
            return new PrioritySelector(ctx => unit = ctx as WoWUnit, new Decorator(ctx => Targeting.Instance.IsEmpty(), new ActionAlwaysSucceed()));
        }


        private List<WoWPoint> GetCampLocations()
        {
            var list = new List<WoWPoint>();
            using (StyxWoW.Memory.AcquireFrame())
            {
                var numberOfVehicles = Lua.GetReturnVal<int>("return GetNumBattlefieldVehicles()", 0);
                for (int i = 1; i <= numberOfVehicles; i++)
                {
                    var rawLoc = Lua.GetReturnValues(string.Format(MapVehicleLocationLuaFormat, i));
                    if (rawLoc[2] == "1")
                        continue;
                    var x = float.Parse(rawLoc[0], CultureInfo.InvariantCulture);
                    var y = float.Parse(rawLoc[1], CultureInfo.InvariantCulture);
                    var heights = Navigator.FindHeights(x, y);
                    var myLoc = Me.Location;
                    var z = heights != null && heights.Any() ? heights.OrderBy(h => Math.Abs(h - myLoc.Z)).FirstOrDefault() : 0;
                    list.Add(new WoWPoint(x, y, z));
                }
            }
            return list;
        }

        #endregion
    }
}