using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Security;
using System.Security.Permissions;
using BepInEx;
using BepInEx.Configuration;
using HarmonyLib;
using Microsoft.CodeAnalysis;
using UnityEngine;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETFramework,Version=v4.8", FrameworkDisplayName = ".NET Framework 4.8")]
[assembly: AssemblyCompany("DungeonSplitter")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyFileVersion("1.0.0.0")]
[assembly: AssemblyInformationalVersion("1.0.0+6876354a7e1793879524127e55f41d5c39bb8ed8")]
[assembly: AssemblyProduct("DungeonSplitter")]
[assembly: AssemblyTitle("DungeonSplitter")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("1.0.0.0")]
[module: UnverifiableCode]
[module: RefSafetyRules(11)]
namespace Microsoft.CodeAnalysis
{
	[CompilerGenerated]
	[Embedded]
	internal sealed class EmbeddedAttribute : Attribute
	{
	}
}
namespace System.Runtime.CompilerServices
{
	[CompilerGenerated]
	[Embedded]
	[AttributeUsage(AttributeTargets.Class | AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Event | AttributeTargets.Parameter | AttributeTargets.ReturnValue | AttributeTargets.GenericParameter, AllowMultiple = false, Inherited = false)]
	internal sealed class NullableAttribute : Attribute
	{
		public readonly byte[] NullableFlags;

		public NullableAttribute(byte P_0)
		{
			NullableFlags = new byte[1] { P_0 };
		}

		public NullableAttribute(byte[] P_0)
		{
			NullableFlags = P_0;
		}
	}
	[CompilerGenerated]
	[Embedded]
	[AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct | AttributeTargets.Method | AttributeTargets.Interface | AttributeTargets.Delegate, AllowMultiple = false, Inherited = false)]
	internal sealed class NullableContextAttribute : Attribute
	{
		public readonly byte Flag;

		public NullableContextAttribute(byte P_0)
		{
			Flag = P_0;
		}
	}
	[CompilerGenerated]
	[Embedded]
	[AttributeUsage(AttributeTargets.Module, AllowMultiple = false, Inherited = false)]
	internal sealed class RefSafetyRulesAttribute : Attribute
	{
		public readonly int Version;

		public RefSafetyRulesAttribute(int P_0)
		{
			Version = P_0;
		}
	}
}
namespace DungeonSplitter
{
	[BepInPlugin("dungeon_splitter", "Dungeon Splitter", "1.9")]
	public class DungeonSplitter : BaseUnityPlugin
	{
		public const string GUID = "dungeon_splitter";

		public const string NAME = "Dungeon Splitter";

		public const string VERSION = "1.9";

		public static ConfigEntry<string> configAlwaysSend;

		public static ConfigEntry<float> configDungeonHeight;

		public static float DungeonHeight => configDungeonHeight.Value;

		public void Awake()
		{
			//IL_007c: Unknown result type (might be due to invalid IL or missing references)
			configAlwaysSend = ((BaseUnityPlugin)this).Config.Bind<string>("General", "Always send", "", "List of object ids that are always sent to clients. Separate with commas.");
			configAlwaysSend.SettingChanged += delegate
			{
				DungeonPrefabs.Postfix();
			};
			configDungeonHeight = ((BaseUnityPlugin)this).Config.Bind<float>("General", "Dungeon height", 1500f, "Height at which the dungeon starts.");
			SetupWatcher();
			new Harmony("dungeon_splitter").PatchAll();
		}

		private void OnDestroy()
		{
			((BaseUnityPlugin)this).Config.Save();
		}

		private void SetupWatcher()
		{
			FileSystemWatcher fileSystemWatcher = new FileSystemWatcher(Path.GetDirectoryName(((BaseUnityPlugin)this).Config.ConfigFilePath), Path.GetFileName(((BaseUnityPlugin)this).Config.ConfigFilePath));
			fileSystemWatcher.Changed += ReadConfigValues;
			fileSystemWatcher.Created += ReadConfigValues;
			fileSystemWatcher.Renamed += ReadConfigValues;
			fileSystemWatcher.IncludeSubdirectories = true;
			fileSystemWatcher.SynchronizingObject = ThreadingHelper.SynchronizingObject;
			fileSystemWatcher.EnableRaisingEvents = true;
		}

		private void ReadConfigValues(object sender, FileSystemEventArgs e)
		{
			if (!File.Exists(((BaseUnityPlugin)this).Config.ConfigFilePath))
			{
				return;
			}
			try
			{
				((BaseUnityPlugin)this).Config.Reload();
			}
			catch
			{
				Debug.LogWarning((object)"Failed to reload config file");
			}
		}
	}
	[HarmonyPatch(typeof(ZDOMan), "CreateSyncList")]
	public class CreateSyncList
	{
		private static void Prefix(ZDOPeer peer)
		{
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			StateManager.Check(peer.m_peer.m_refPos);
			FindObjects.IsSending = true;
		}
	}
	[HarmonyPatch(typeof(ZDOMan), "ReleaseNearbyZDOS")]
	public class ReleaseNearbyZDOS
	{
		private static bool Prefix(ZDOMan __instance, Vector3 refPosition, long uid)
		{
			//IL_0011: Unknown result type (might be due to invalid IL or missing references)
			//IL_001d: Unknown result type (might be due to invalid IL or missing references)
			//IL_001e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0030: Unknown result type (might be due to invalid IL or missing references)
			//IL_0039: Unknown result type (might be due to invalid IL or missing references)
			//IL_0042: Unknown result type (might be due to invalid IL or missing references)
			//IL_006b: Unknown result type (might be due to invalid IL or missing references)
			//IL_009b: Unknown result type (might be due to invalid IL or missing references)
			if (uid == __instance.m_sessionID)
			{
				PruneOwnership(__instance);
			}
			StateManager.Check(refPosition);
			FindObjects.IsSending = false;
			Vector2i zone = ZoneSystem.GetZone(refPosition);
			int num = ZoneSystem.instance.m_activeArea - 1;
			int num2 = zone.x - num;
			int num3 = zone.y - num;
			int num4 = zone.x + num;
			int num5 = zone.y + num;
			Vector2i val = default(Vector2i);
			for (int i = num2; i <= num4; i++)
			{
				for (int j = num3; j <= num5; j++)
				{
					((Vector2i)(ref val))..ctor(i, j);
					int num6 = __instance.SectorToIndex(val);
					List<ZDO> value;
					if (num6 >= 0)
					{
						if (__instance.m_objectsBySector[num6] != null)
						{
							Process(__instance.m_objectsBySector[num6], uid);
						}
					}
					else if (__instance.m_objectsByOutsideSector.TryGetValue(val, out value))
					{
						Process(value, uid);
					}
				}
			}
			return false;
		}

		private static void PruneOwnership(ZDOMan zm)
		{
			//IL_004b: Unknown result type (might be due to invalid IL or missing references)
			PlayerCache.Refresh(zm);
			foreach (KeyValuePair<ZDOID, ushort> item in ZDOExtraData.s_owner.Where(delegate(KeyValuePair<ZDOID, ushort> kvp)
			{
				//IL_0008: Unknown result type (might be due to invalid IL or missing references)
				//IL_0053: Unknown result type (might be due to invalid IL or missing references)
				//IL_0059: Unknown result type (might be due to invalid IL or missing references)
				ZDO zDO2 = zm.GetZDO(kvp.Key);
				if (zDO2 == null)
				{
					return true;
				}
				if (!zDO2.Persistent)
				{
					return false;
				}
				if (!PlayerCache.TryGet(zDO2.GetOwner(), out PlayerCache cache))
				{
					return true;
				}
				return zDO2.m_position.y >= DungeonSplitter.DungeonHeight != cache.InDungeon || !ZNetScene.InActiveArea(zDO2.GetSector(), cache.Zone);
			}).ToList())
			{
				ZDO zDO = zm.GetZDO(item.Key);
				if (zDO != null)
				{
					zDO.SetOwner(0L);
				}
			}
		}

		private static void Process(List<ZDO> objects, long uid)
		{
			foreach (ZDO @object in objects)
			{
				if (@object.Persistent && !@object.HasOwner() && ((@object.m_position.y >= DungeonSplitter.DungeonHeight) ? StateManager.InDungeon : StateManager.OnGround))
				{
					@object.SetOwner(uid);
				}
			}
		}
	}
	[HarmonyPatch(typeof(ZNetScene), "CreateDestroyObjects")]
	public class CreateDestroyObjects
	{
		private static double LastCheck;

		private static bool AnyNearby;

		private static void Prefix()
		{
			//IL_0024: Unknown result type (might be due to invalid IL or missing references)
			//IL_0029: Unknown result type (might be due to invalid IL or missing references)
			//IL_007b: Unknown result type (might be due to invalid IL or missing references)
			//IL_006e: Unknown result type (might be due to invalid IL or missing references)
			if (!Object.op_Implicit((Object)(object)Player.m_localPlayer))
			{
				return;
			}
			double netTime = ZNet.instance.m_netTime;
			Vector3 pos = ZNet.instance.GetReferencePosition();
			if (netTime - LastCheck > 5.0)
			{
				LastCheck = netTime;
				AnyNearby = ZNet.instance.GetPeers().Any((ZNetPeer peer) => peer.IsReady() && Utils.DistanceXZ(peer.m_refPos, pos) < 300f);
			}
			if (AnyNearby)
			{
				StateManager.CheckForRemove(pos);
			}
			else
			{
				StateManager.Check(pos);
			}
			FindObjects.IsSending = false;
		}
	}
	[HarmonyPatch(typeof(ZNetScene), "IsAreaReady")]
	public class IsAreaReady
	{
		private static void Prefix(Vector3 point)
		{
			//IL_0000: Unknown result type (might be due to invalid IL or missing references)
			StateManager.Check(point);
			FindObjects.IsSending = false;
		}
	}
	[HarmonyPatch(typeof(ZDOMan), "FindObjects")]
	public class FindObjects
	{
		public static HashSet<int> AlwaysSend = new HashSet<int>();

		public static HashSet<int> AlwaysLoad = new HashSet<int>();

		public static bool IsSending;

		private static bool Prefix(ZDOMan __instance, Vector2i sector, List<ZDO> objects)
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_005f: Unknown result type (might be due to invalid IL or missing references)
			int num = __instance.SectorToIndex(sector);
			List<ZDO> value;
			if (num >= 0)
			{
				if (__instance.m_objectsBySector[num] != null)
				{
					List<ZDO> list = new List<ZDO>();
					list.AddRange(__instance.m_objectsBySector[num].Where(IsOk));
					objects.AddRange(new <>z__ReadOnlyList<ZDO>(list));
					return false;
				}
			}
			else if (__instance.m_objectsByOutsideSector.TryGetValue(sector, out value))
			{
				List<ZDO> list2 = new List<ZDO>();
				list2.AddRange(value.Where(IsOk));
				objects.AddRange(new <>z__ReadOnlyList<ZDO>(list2));
			}
			return false;
		}

		public static bool IsOk(ZDO zdo)
		{
			//IL_0013: Unknown result type (might be due to invalid IL or missing references)
			if (!AlwaysLoad.Contains(zdo.m_prefab) && !StateManager.IsSameLevel(zdo.m_position))
			{
				if (IsSending)
				{
					return AlwaysSend.Contains(zdo.m_prefab);
				}
				return false;
			}
			return true;
		}
	}
	[HarmonyPatch(typeof(ZDOMan), "FindDistantObjects")]
	public class FindDistantObjects
	{
		private static bool Prefix(ZDOMan __instance, Vector2i sector, List<ZDO> objects)
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_005d: Unknown result type (might be due to invalid IL or missing references)
			int num = __instance.SectorToIndex(sector);
			if (num >= 0)
			{
				List<ZDO> list = __instance.m_objectsBySector[num];
				if (list == null)
				{
					return false;
				}
				List<ZDO> list2 = new List<ZDO>();
				list2.AddRange(list.Where((ZDO zdo) => zdo.Distant && StateManager.IsSameLevel(zdo.m_position)));
				objects.AddRange(new <>z__ReadOnlyList<ZDO>(list2));
				return false;
			}
			if (__instance.m_objectsByOutsideSector.TryGetValue(sector, out var value))
			{
				List<ZDO> list3 = new List<ZDO>();
				list3.AddRange(value.Where((ZDO zdo) => zdo.Distant && StateManager.IsSameLevel(zdo.m_position)));
				objects.AddRange(new <>z__ReadOnlyList<ZDO>(list3));
			}
			return false;
		}
	}
	[HarmonyPatch(typeof(ZoneSystem), "Start")]
	public class DungeonPrefabs
	{
		public static int ProxyHash = StringExtensionMethods.GetStableHashCode("LocationProxy");

		public static int PlayerHash = StringExtensionMethods.GetStableHashCode("Player");

		public static int ZoneCtrlHash = StringExtensionMethods.GetStableHashCode("_ZoneCtrl");

		public static int TerrainCompilerHash = StringExtensionMethods.GetStableHashCode("_TerrainCompiler");

		public static void Postfix()
		{
			HashSet<int> hashSet = new HashSet<int>();
			foreach (int item in from prefab in ZNetScene.instance.m_namedPrefabs.Values
				where Object.op_Implicit((Object)(object)prefab.GetComponentInChildren<Teleport>())
				select StringExtensionMethods.GetStableHashCode(((Object)prefab).name))
			{
				hashSet.Add(item);
			}
			FindObjects.AlwaysLoad = hashSet;
			FindObjects.AlwaysLoad.Add(ProxyHash);
			FindObjects.AlwaysLoad.Add(ZoneCtrlHash);
			FindObjects.AlwaysLoad.Add(TerrainCompilerHash);
			hashSet = new HashSet<int>();
			foreach (int item2 in from prefab in ZNetScene.instance.m_namedPrefabs.Values
				where Object.op_Implicit((Object)(object)prefab.GetComponent<DungeonGenerator>())
				select StringExtensionMethods.GetStableHashCode(((Object)prefab).name))
			{
				hashSet.Add(item2);
			}
			FindObjects.AlwaysSend = hashSet;
			foreach (string item3 in from str in DungeonSplitter.configAlwaysSend.Value.Split(new char[1] { ',' })
				select str.Trim() into str
				where !string.IsNullOrEmpty(str)
				select str)
			{
				FindObjects.AlwaysSend.Add(StringExtensionMethods.GetStableHashCode(item3));
			}
			FindObjects.AlwaysSend.Add(PlayerHash);
		}
	}
	public class StateManager
	{
		public static bool InDungeon;

		public static bool OnGround;

		public static double LastDungeon;

		public static double LastGround;

		private const double Delay = 2.5;

		public static bool IsSameLevel(Vector3 pos)
		{
			//IL_0000: Unknown result type (might be due to invalid IL or missing references)
			if (!(pos.y >= DungeonSplitter.DungeonHeight))
			{
				return OnGround;
			}
			return InDungeon;
		}

		public static void Check(Vector3 pos)
		{
			//IL_0000: Unknown result type (might be due to invalid IL or missing references)
			OnGround = !(InDungeon = pos.y >= DungeonSplitter.DungeonHeight);
		}

		public static void CheckForRemove(Vector3 pos)
		{
			//IL_0000: Unknown result type (might be due to invalid IL or missing references)
			bool num = pos.y >= DungeonSplitter.DungeonHeight;
			double netTime = ZNet.instance.m_netTime;
			if (num)
			{
				InDungeon = true;
				LastDungeon = netTime;
				OnGround = netTime - LastGround <= 2.5;
			}
			else
			{
				OnGround = true;
				LastGround = netTime;
				InDungeon = netTime - LastDungeon <= 2.5;
			}
		}
	}
	public class PlayerCache
	{
		private static readonly Dictionary<long, PlayerCache> cache = new Dictionary<long, PlayerCache>();

		private static readonly HashSet<long> activePlayers = new HashSet<long>();

		public bool InDungeon;

		public Vector2i Zone;

		public static bool TryGet(long uid, out PlayerCache cache)
		{
			return PlayerCache.cache.TryGetValue(uid, out cache);
		}

		public static void Refresh(ZDOMan zm)
		{
			//IL_0015: Unknown result type (might be due to invalid IL or missing references)
			//IL_0046: Unknown result type (might be due to invalid IL or missing references)
			activePlayers.Clear();
			Handle(zm.m_sessionID, ZNet.instance.GetReferencePosition());
			foreach (ZDOPeer peer in zm.m_peers)
			{
				Handle(peer.m_peer.m_uid, peer.m_peer.m_refPos);
			}
			foreach (long item in cache.Keys.Where((long uid) => !activePlayers.Contains(uid)).ToList())
			{
				cache.Remove(item);
			}
		}

		private static void Handle(long uid, Vector3 position)
		{
			//IL_002e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0044: Unknown result type (might be due to invalid IL or missing references)
			//IL_0045: Unknown result type (might be due to invalid IL or missing references)
			//IL_004a: Unknown result type (might be due to invalid IL or missing references)
			activePlayers.Add(uid);
			if (!cache.TryGetValue(uid, out PlayerCache value))
			{
				value = new PlayerCache();
				cache[uid] = value;
			}
			value.InDungeon = position.y >= DungeonSplitter.DungeonHeight;
			value.Zone = ZoneSystem.GetZone(position);
		}
	}
}
internal sealed class <>z__ReadOnlyList<T> : IEnumerable, ICollection, IList, IEnumerable<T>, IReadOnlyCollection<T>, IReadOnlyList<T>, ICollection<T>, IList<T>
{
	int ICollection.Count => _items.Count;

	bool ICollection.IsSynchronized => false;

	object ICollection.SyncRoot => this;

	object IList.this[int index]
	{
		get
		{
			return _items[index];
		}
		set
		{
			throw new NotSupportedException();
		}
	}

	bool IList.IsFixedSize => true;

	bool IList.IsReadOnly => true;

	int IReadOnlyCollection<T>.Count => _items.Count;

	T IReadOnlyList<T>.this[int index] => _items[index];

	int ICollection<T>.Count => _items.Count;

	bool ICollection<T>.IsReadOnly => true;

	T IList<T>.this[int index]
	{
		get
		{
			return _items[index];
		}
		set
		{
			throw new NotSupportedException();
		}
	}

	public <>z__ReadOnlyList(List<T> items)
	{
		_items = items;
	}

	IEnumerator IEnumerable.GetEnumerator()
	{
		return ((IEnumerable)_items).GetEnumerator();
	}

	void ICollection.CopyTo(Array array, int index)
	{
		((ICollection)_items).CopyTo(array, index);
	}

	int IList.Add(object value)
	{
		throw new NotSupportedException();
	}

	void IList.Clear()
	{
		throw new NotSupportedException();
	}

	bool IList.Contains(object value)
	{
		return ((IList)_items).Contains(value);
	}

	int IList.IndexOf(object value)
	{
		return ((IList)_items).IndexOf(value);
	}

	void IList.Insert(int index, object value)
	{
		throw new NotSupportedException();
	}

	void IList.Remove(object value)
	{
		throw new NotSupportedException();
	}

	void IList.RemoveAt(int index)
	{
		throw new NotSupportedException();
	}

	IEnumerator<T> IEnumerable<T>.GetEnumerator()
	{
		return ((IEnumerable<T>)_items).GetEnumerator();
	}

	void ICollection<T>.Add(T item)
	{
		throw new NotSupportedException();
	}

	void ICollection<T>.Clear()
	{
		throw new NotSupportedException();
	}

	bool ICollection<T>.Contains(T item)
	{
		return _items.Contains(item);
	}

	void ICollection<T>.CopyTo(T[] array, int arrayIndex)
	{
		_items.CopyTo(array, arrayIndex);
	}

	bool ICollection<T>.Remove(T item)
	{
		throw new NotSupportedException();
	}

	int IList<T>.IndexOf(T item)
	{
		return _items.IndexOf(item);
	}

	void IList<T>.Insert(int index, T item)
	{
		throw new NotSupportedException();
	}

	void IList<T>.RemoveAt(int index)
	{
		throw new NotSupportedException();
	}
}