using System;
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.Core.Logging.Interpolation;
using BepInEx.Logging;
using BepInEx.Unity.IL2CPP;
using BepInEx.Unity.IL2CPP.Utils.Collections;
using HarmonyLib;
using Il2CppInterop.Runtime.InteropTypes;
using Il2CppInterop.Runtime.InteropTypes.Arrays;
using Il2CppSystem;
using Il2CppSystem.Collections;
using Il2CppSystem.Collections.Generic;
using Microsoft.CodeAnalysis;
using Newtonsoft.Json;
using UnityEngine;
using WildSkies.Database;
using WildSkies.Service;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETCoreApp,Version=v6.0", FrameworkDisplayName = ".NET 6.0")]
[assembly: AssemblyCompany("WorldSave5To6Fix")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyCopyright("Nines (Natives)")]
[assembly: AssemblyFileVersion("1.0.0.0")]
[assembly: AssemblyInformationalVersion("1.0.0")]
[assembly: AssemblyProduct("WorldSave5To6")]
[assembly: AssemblyTitle("WorldSave5To6Fix")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("1.0.0.0")]
[module: UnverifiableCode]
[module: RefSafetyRules(11)]
namespace Microsoft.CodeAnalysis
{
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	internal sealed class EmbeddedAttribute : Attribute
	{
	}
}
namespace System.Runtime.CompilerServices
{
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.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 WorldSave5To6Fix
{
	[BepInPlugin("WorldSave5To6Fix", "WorldSave5To6", "1.0.0")]
	public class Plugin : BasePlugin
	{
		internal static ManualLogSource Log;

		internal static Harmony harmonyInstance;

		public override void Load()
		{
			//IL_0015: Unknown result type (might be due to invalid IL or missing references)
			//IL_001b: Expected O, but got Unknown
			Log = ((BasePlugin)this).Log;
			ManualLogSource log = Log;
			bool flag = default(bool);
			BepInExInfoLogInterpolatedStringHandler val = new BepInExInfoLogInterpolatedStringHandler(18, 1, ref flag);
			if (flag)
			{
				((BepInExLogInterpolatedStringHandler)val).AppendLiteral("Plugin ");
				((BepInExLogInterpolatedStringHandler)val).AppendFormatted<string>("WorldSave5To6Fix");
				((BepInExLogInterpolatedStringHandler)val).AppendLiteral(" is loaded!");
			}
			log.LogInfo(val);
			harmonyInstance = Harmony.CreateAndPatchAll(typeof(Plugin), (string)null);
		}

		public override bool Unload()
		{
			Harmony obj = harmonyInstance;
			if (obj != null)
			{
				obj.UnpatchSelf();
			}
			return true;
		}

		private static void Combinations(ref List<List<int>> results, ref List<int> input, int size)
		{
			if (size == 1)
			{
				results.Add(input.ToList());
				return;
			}
			for (int i = 0; i < size; i++)
			{
				Combinations(ref results, ref input, size - 1);
				if (size % 2 == 1)
				{
					List<int> list = input;
					int index = size - 1;
					List<int> obj = input;
					int value = input[0];
					int value2 = input[size - 1];
					list[index] = value;
					obj[0] = value2;
				}
				else
				{
					List<int> list = input;
					int index = size - 1;
					List<int> obj2 = input;
					int value2 = i;
					int value = input[i];
					int value3 = input[size - 1];
					list[index] = value;
					obj2[value2] = value3;
				}
			}
		}

		private static Il2CppStructArray<byte> FixDataBuffer(Il2CppStructArray<byte> compressedData, string id)
		{
			int num = 1010;
			if ((((Il2CppArrayBase<byte>)(object)compressedData)?.Count ?? 0) <= num)
			{
				return null;
			}
			try
			{
				int num2 = BitConverter.ToInt32(Il2CppArrayBase<byte>.op_Implicit((Il2CppArrayBase<byte>)(object)compressedData), ((Il2CppArrayBase<byte>)(object)compressedData).Length - 4);
				if (num2 < 0)
				{
					throw new Exception();
				}
				if (num2 > 0 && ((Il2CppArrayBase<byte>)(object)CompressionHelper.Decompress(compressedData)).Length != num2)
				{
					throw new Exception();
				}
			}
			catch
			{
				List<List<int>> results = new List<List<int>>();
				List<int> input = new List<int>();
				for (int i = 0; (double)i < Math.Ceiling((float)((Il2CppArrayBase<byte>)(object)compressedData).Length / (float)num); i++)
				{
					input.Add(i);
				}
				Combinations(ref results, ref input, input.Count);
				foreach (List<int> item in results)
				{
					using MemoryStream memoryStream = new MemoryStream();
					int num3 = ((Il2CppArrayBase<byte>)(object)compressedData).Length - (item.Count - 1) * num;
					foreach (int item2 in item)
					{
						memoryStream.Write(Il2CppArrayBase<byte>.op_Implicit((Il2CppArrayBase<byte>)(object)compressedData), item2 * num + ((item2 > item.Last()) ? (num3 - num) : 0), (item2 == item.Last()) ? num3 : num);
					}
					byte[] array = memoryStream.ToArray();
					try
					{
						int num4 = BitConverter.ToInt32(array, array.Length - 4);
						if (num4 < 0)
						{
							throw new Exception();
						}
						if (num4 > 0 && ((Il2CppArrayBase<byte>)(object)CompressionHelper.Decompress(Il2CppStructArray<byte>.op_Implicit(array))).Length != num4)
						{
							throw new Exception();
						}
					}
					catch
					{
						array = null;
					}
					finally
					{
						memoryStream.Close();
					}
					if (array != null)
					{
						Debug.LogWarning(Object.op_Implicit("LDS Container " + id + " has a corrupt databuffer. Fixed."));
						return Il2CppStructArray<byte>.op_Implicit(array);
					}
				}
				Debug.LogError(Object.op_Implicit("LDS Container " + id + " has a corrupt databuffer. Failed to repair."));
			}
			return null;
		}

		[HarmonyPatch(typeof(WorldDBService), "InitDatabase")]
		[HarmonyPostfix]
		public static void WorldDBService_InitDatabase(WorldDBService __instance)
		{
			//IL_0032: Unknown result type (might be due to invalid IL or missing references)
			if (__instance._worldData.Version != 6)
			{
				return;
			}
			foreach (Object item in CollectionExtensions.WrapToManaged(((Il2CppObjectBase)__instance._ldsContainers.FindAll()).Cast<IEnumerable>()))
			{
				LDSEntityEntry val = ((Il2CppObjectBase)item).Cast<LDSEntityEntry>();
				Dictionary<string, string> val2 = JsonConvert.DeserializeObject<Dictionary<string, string>>(val.InstanceData);
				V6LDSInstanceData val3 = JsonConvert.DeserializeObject<V6LDSInstanceData>(val2["_5a574b2b6764eb9428c646bf7c778da0_7229481547701622468"]);
				val3._dataBuffer = FixDataBuffer(val3._dataBuffer, val._id);
				if (val3._dataBuffer != null)
				{
					val2["_5a574b2b6764eb9428c646bf7c778da0_7229481547701622468"] = JsonConvert.SerializeObject((Object)(object)val3);
					val.InstanceData = JsonConvert.SerializeObject((Object)(object)val2);
					__instance.UpdateLdsContainer(val);
				}
			}
		}
	}
	public static class MyPluginInfo
	{
		public const string PLUGIN_GUID = "WorldSave5To6Fix";

		public const string PLUGIN_NAME = "WorldSave5To6";

		public const string PLUGIN_VERSION = "1.0.0";
	}
}