using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using BepInEx;
using BepInEx.Logging;
using HarmonyLib;
using Microsoft.CodeAnalysis;
using Renderite.Shared;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETFramework,Version=v4.7.2", FrameworkDisplayName = ".NET Framework 4.7.2")]
[assembly: AssemblyCompany("nullobsi")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyFileVersion("1.0.0.0")]
[assembly: AssemblyInformationalVersion("1.0.0+6342072216248b7763f6f040925d008d8dbd4268")]
[assembly: AssemblyProduct("FixHandPose (for Unity)")]
[assembly: AssemblyTitle("FixHandPose.Unity")]
[assembly: AssemblyMetadata("RepositoryUrl", "https://github.com/nullobsi/FixHandPose")]
[assembly: AssemblyVersion("1.0.0.0")]
[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 FixHandPose.Shared
{
	[HarmonyPatch(typeof(VR_ControllerState))]
	internal class VR_ControllerState_Patch
	{
		private static readonly FieldInfo IsTrackingField = AccessTools.Field(typeof(VR_ControllerState), "isTracking") ?? throw new MissingFieldException(typeof(VR_ControllerState).FullName, "isTracking");

		private static readonly FieldInfo HasBoundHandField = AccessTools.Field(typeof(VR_ControllerState), "hasBoundHand") ?? throw new MissingFieldException(typeof(VR_ControllerState).FullName, "hasBoundHand");

		[HarmonyTranspiler]
		[HarmonyPatch("Pack")]
		private static IEnumerable<CodeInstruction> Pack_Transpiler(IEnumerable<CodeInstruction> instructions)
		{
			return RemoveBranches(instructions);
		}

		[HarmonyTranspiler]
		[HarmonyPatch("Unpack")]
		private static IEnumerable<CodeInstruction> Unpack_Transpiler(IEnumerable<CodeInstruction> instructions)
		{
			return RemoveBranches(instructions);
		}

		private static IEnumerable<CodeInstruction> RemoveBranches(IEnumerable<CodeInstruction> instructions)
		{
			List<CodeInstruction> list = instructions.ToList();
			HashSet<FieldInfo> hashSet = new HashSet<FieldInfo> { IsTrackingField, HasBoundHandField };
			for (int i = 0; i < list.Count - 1; i++)
			{
				if (list[i].operand is FieldInfo fieldInfo && hashSet.Contains(fieldInfo) && CodeInstructionExtensions.LoadsField(list[i], fieldInfo, false) && (!(list[i + 1].opcode != OpCodes.Brfalse) || !(list[i + 1].opcode != OpCodes.Brfalse_S)))
				{
					list[i + 1].opcode = OpCodes.Pop;
					list[i + 1].operand = null;
					hashSet.Remove(fieldInfo);
				}
			}
			if (hashSet.Count != 0)
			{
				throw new InvalidOperationException("Could not remove VR_ControllerState guards for: " + string.Join(", ", hashSet.Select((FieldInfo field) => field.Name)) + ".");
			}
			return list;
		}
	}
}
namespace FixHandPose.Unity
{
	[BepInPlugin("FixHandPose.Unity", "FixHandPose (for Unity)", "1.0.0")]
	public class Plugin : BaseUnityPlugin
	{
		internal static ManualLogSource Logger;

		private void Awake()
		{
			//IL_001f: Unknown result type (might be due to invalid IL or missing references)
			Logger = ((BaseUnityPlugin)this).Logger;
			Logger.LogInfo((object)"Plugin FixHandPose.Unity is loaded!");
			try
			{
				new Harmony("dog.unix.FixHandPose.Unity").PatchAll();
				Logger.LogInfo((object)"FixHandPose: Unity patches applied");
			}
			catch (Exception arg)
			{
				Logger.LogError((object)$"FixHandPose: Unity failed to patch: {arg}");
			}
		}
	}
}