using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.CompilerServices;
using System.Runtime.Versioning;
using System.Security;
using System.Security.Permissions;
using BepInEx;
using HarmonyLib;
using Microsoft.CodeAnalysis;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETStandard,Version=v2.1", FrameworkDisplayName = ".NET Standard 2.1")]
[assembly: AssemblyCompany("ILLine")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyFileVersion("1.1.1.0")]
[assembly: AssemblyInformationalVersion("1.1.1+d6c4a110f3031326f8412de6f0289f0b03bfb451")]
[assembly: AssemblyProduct("ILLine")]
[assembly: AssemblyTitle("ILLine")]
[assembly: AssemblyMetadata("RepositoryUrl", "https://github.com/kaycodes13/Silksong.ILLine")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("1.1.1.0")]
[module: UnverifiableCode]
[module: RefSafetyRules(11)]
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 BepInEx
{
	[AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
	[Conditional("CodeGeneration")]
	[Embedded]
	internal sealed class BepInAutoPluginAttribute : Attribute
	{
		public BepInAutoPluginAttribute(string? id = null, string? name = null, string? version = null)
		{
		}
	}
}
namespace BepInEx.Preloader.Core.Patching
{
	[AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
	[Conditional("CodeGeneration")]
	[Embedded]
	internal sealed class PatcherAutoPluginAttribute : Attribute
	{
		public PatcherAutoPluginAttribute(string? id = null, string? name = null, string? version = null)
		{
		}
	}
}
namespace Microsoft.CodeAnalysis
{
	[Embedded]
	internal sealed class EmbeddedAttribute : Attribute
	{
	}
}
namespace ILLine
{
	[BepInPlugin("io.github.kaycodes13.illine", "ILLine", "1.1.1")]
	public class ILLinePlugin : BaseUnityPlugin
	{
		public const string Id = "io.github.kaycodes13.illine";

		private static Harmony Harmony { get; } = new Harmony("io.github.kaycodes13.illine");

		public static string Name => "ILLine";

		public static string Version => "1.1.1";

		private void Awake()
		{
			((BaseUnityPlugin)this).Logger.LogInfo((object)("Plugin " + Name + " (io.github.kaycodes13.illine) has loaded!"));
			Harmony.PatchAll();
		}
	}
	[HarmonyPatch(typeof(StackTrace), "AddFrames")]
	internal class <ILLinePlugin>F4572A7771E147276855628324024C27255C6F33934366CC4ED918F81E22BAAEE__ReplaceLineNumber
	{
		private static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions, ILGenerator ilGen)
		{
			//IL_000f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0041: Unknown result type (might be due to invalid IL or missing references)
			//IL_0047: Expected O, but got Unknown
			//IL_009a: Unknown result type (might be due to invalid IL or missing references)
			//IL_00a0: Expected O, but got Unknown
			//IL_00c2: Unknown result type (might be due to invalid IL or missing references)
			//IL_00c8: Expected O, but got Unknown
			//IL_00eb: Unknown result type (might be due to invalid IL or missing references)
			//IL_00f1: Expected O, but got Unknown
			int frameIndex = -1;
			return new CodeMatcher(instructions, ilGen).Start().MatchStartForward((CodeMatch[])(object)new CodeMatch[1]
			{
				new CodeMatch((Func<CodeInstruction, bool>)((CodeInstruction x) => CallsMethod(x, "GetFileLineNumber")), (string)null)
			}).RemoveInstructions(2)
				.Insert((CodeInstruction[])(object)new CodeInstruction[1] { Transpilers.EmitDelegate<Func<StackFrame, string>>((Func<StackFrame, string>)GetLineAndILOffset) })
				.Start()
				.MatchEndForward((CodeMatch[])(object)new CodeMatch[2]
				{
					new CodeMatch((Func<CodeInstruction, bool>)((CodeInstruction x) => Ldloc(x, out frameIndex)), (string)null),
					new CodeMatch((Func<CodeInstruction, bool>)((CodeInstruction x) => CallsMethod(x, "GetInternalMethodName")), (string)null)
				})
				.Advance(1)
				.Insert((CodeInstruction[])(object)new CodeInstruction[2]
				{
					new CodeInstruction(OpCodes.Ldloc, (object)frameIndex),
					Transpilers.EmitDelegate<Func<string, StackFrame, string>>((Func<string, StackFrame, string>)AppendLineAndILOffset)
				})
				.InstructionEnumeration();
		}

		private static string GetLineAndILOffset(StackFrame frame)
		{
			int fileLineNumber = frame.GetFileLineNumber();
			int iLOffset = frame.GetILOffset();
			if (fileLineNumber <= 0)
			{
				return $"IL_{iLOffset:X4}";
			}
			return $"{fileLineNumber} [IL_{iLOffset:X4}]";
		}

		private static string AppendLineAndILOffset(string currentText, StackFrame frame)
		{
			return currentText + " (at " + GetLineAndILOffset(frame) + ")";
		}

		private static bool CallsMethod(CodeInstruction x, string name)
		{
			if ((x.opcode == OpCodes.Call || x.opcode == OpCodes.Callvirt) && x.operand is MethodInfo methodInfo)
			{
				return methodInfo.Name == name;
			}
			return false;
		}

		private static bool Ldloc(CodeInstruction ci, out int index)
		{
			index = -1;
			if (ci.opcode == OpCodes.Ldloc || ci.opcode == OpCodes.Ldloc_S)
			{
				index = (int)ci.operand;
			}
			else if (ci.opcode == OpCodes.Ldloc_0)
			{
				index = 0;
			}
			else if (ci.opcode == OpCodes.Ldloc_1)
			{
				index = 1;
			}
			else if (ci.opcode == OpCodes.Ldloc_2)
			{
				index = 2;
			}
			else if (ci.opcode == OpCodes.Ldloc_3)
			{
				index = 3;
			}
			return index >= 0;
		}
	}
}