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 System.Text;
using BepInEx;
using BepInEx.Bootstrap;
using BepInEx.Configuration;
using GlobalEnums;
using HarmonyLib;
using Microsoft.CodeAnalysis;
using Mono.Cecil;
using UnityEngine;

[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("Silksong.Modlist")]
[assembly: AssemblyConfiguration("Release")]
[assembly: AssemblyFileVersion("0.3.1.0")]
[assembly: AssemblyInformationalVersion("0.3.1+db5d1e2393a08c026c788e53641972a6c8103fed")]
[assembly: AssemblyProduct("Silksong.Modlist")]
[assembly: AssemblyTitle("Modlist")]
[assembly: AssemblyMetadata("RepositoryUrl", "https://github.com/silksong-modding/Silksong.Modlist")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("0.3.1.0")]
[module: UnverifiableCode]
[module: RefSafetyRules(11)]
namespace System.Runtime.CompilerServices
{
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.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]
	[Microsoft.CodeAnalysis.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]
	[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 BepInEx
{
	[AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
	[Conditional("CodeGeneration")]
	[Microsoft.CodeAnalysis.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")]
	[Microsoft.CodeAnalysis.Embedded]
	internal sealed class PatcherAutoPluginAttribute : Attribute
	{
		public PatcherAutoPluginAttribute(string? id = null, string? name = null, string? version = null)
		{
		}
	}
}
namespace Microsoft.CodeAnalysis
{
	[Microsoft.CodeAnalysis.Embedded]
	internal sealed class EmbeddedAttribute : Attribute
	{
	}
}
namespace Silksong.Modlist
{
	public static class FileTree
	{
		public static int MAX_DEPTH = 3;

		private static readonly Func<string, bool>[] _excludes = new Func<string, bool>[6]
		{
			(string s) => s.EndsWith(".old"),
			(string s) => s == "manifest.json",
			(string s) => s == "icon.png",
			(string s) => s == "README.md",
			(string s) => s == "CHANGELOG.md",
			(string s) => s == "LICENSE"
		};

		public static StringBuilder RenderTree(string dir, StringBuilder? builder = null, string prefix = "", int depth = 0)
		{
			if (builder == null)
			{
				builder = new StringBuilder();
			}
			if (depth >= MAX_DEPTH)
			{
				return builder;
			}
			List<FileSystemInfo> list = (from f in new DirectoryInfo(dir).GetFileSystemInfos()
				orderby f.Name
				select f).ToList();
			foreach (FileSystemInfo item in list.Take(list.Count - 1))
			{
				RenderItem(item, builder, lastItem: false, prefix, depth);
			}
			FileSystemInfo fileSystemInfo = list.LastOrDefault();
			if (fileSystemInfo != null)
			{
				RenderItem(fileSystemInfo, builder, lastItem: true, prefix, depth);
			}
			return builder;
		}

		private static bool DirContainsOnlyExcluded(DirectoryInfo dir)
		{
			if (dir.GetDirectories().Length == 0)
			{
				return dir.GetFiles().All((FileInfo info) => _excludes.Any((Func<string, bool> ex) => ex(info.Name)));
			}
			return false;
		}

		private static void RenderItem(FileSystemInfo item, StringBuilder builder, bool lastItem, string prefix = "", int depth = 0)
		{
			FileSystemInfo item2 = item;
			if (!_excludes.Any((Func<string, bool> ex) => ex(item2.Name.TrimEnd())) && (!item2.IsDirectory() || !DirContainsOnlyExcluded((DirectoryInfo)item2)))
			{
				string text = (item2.IsDirectory() ? "/" : null);
				string text2 = (lastItem ? "└── " : "├── ");
				builder.AppendLine(prefix + text2 + item2.Name + text);
				if (item2.IsDirectory())
				{
					RenderTree(item2.FullName, builder, prefix + (lastItem ? "    " : "│   "), depth + 1);
				}
			}
		}
	}
	public static class FileSystemInfoExtensions
	{
		public static bool IsDirectory(this FileSystemInfo listing)
		{
			return listing.Attributes.HasFlag(FileAttributes.Directory);
		}
	}
	public class ModListDraw : MonoBehaviour
	{
		private static readonly GUIStyle Style = new GUIStyle(GUIStyle.none);

		private const int DesignFontSize = 15;

		internal string MenuDrawString = "";

		internal string PauseDrawString = "";

		private string DrawString
		{
			get
			{
				//IL_0005: Unknown result type (might be due to invalid IL or missing references)
				//IL_000a: Unknown result type (might be due to invalid IL or missing references)
				//IL_000b: Unknown result type (might be due to invalid IL or missing references)
				//IL_000d: Invalid comparison between Unknown and I4
				//IL_000f: Unknown result type (might be due to invalid IL or missing references)
				//IL_0011: Invalid comparison between Unknown and I4
				UIState uiState = UIManager.instance.uiState;
				if ((int)uiState != 1)
				{
					if ((int)uiState == 5)
					{
						return PauseDrawString;
					}
					return "";
				}
				return MenuDrawString;
			}
		}

		private static float HScale => (float)Screen.width / 1920f;

		private static float VScale => (float)Screen.height / 1080f;

		private static float ScaleFactor
		{
			get
			{
				if (!(HScale < VScale))
				{
					return VScale;
				}
				return HScale;
			}
		}

		private static int ScaledFontSize => (int)(15f * ScaleFactor);

		private void Start()
		{
			//IL_000a: Unknown result type (might be due to invalid IL or missing references)
			//IL_0028: Unknown result type (might be due to invalid IL or missing references)
			//IL_0032: Expected O, but got Unknown
			Style.normal.textColor = Color.white;
			Style.alignment = (TextAnchor)0;
			Style.padding = new RectOffset(5, 5, 5, 5);
		}

		public void OnGUI()
		{
			//IL_0013: Unknown result type (might be due to invalid IL or missing references)
			//IL_0018: Unknown result type (might be due to invalid IL or missing references)
			//IL_0019: Unknown result type (might be due to invalid IL or missing references)
			//IL_001b: Invalid comparison between Unknown and I4
			//IL_001d: Unknown result type (might be due to invalid IL or missing references)
			//IL_001f: Invalid comparison between Unknown and I4
			//IL_004f: Unknown result type (might be due to invalid IL or missing references)
			if (!((Object)(object)UIManager._instance == (Object)null))
			{
				UIState uiState = UIManager.instance.uiState;
				if (((int)uiState == 1 || (int)uiState == 5) ? true : false)
				{
					Style.fontSize = ScaledFontSize;
					GUI.Label(new Rect(0f, 0f, (float)Screen.width, (float)Screen.height), DrawString, Style);
				}
			}
		}
	}
	public static class Constants
	{
		public const string Guid = "org.silksong-modding.modlist";
	}
	internal enum DisplayMode
	{
		Full,
		Reduced,
		Hidden
	}
	internal record struct PatcherMeta
	{
		public string CleanAsmName => AsmOverrides.GetValueOrDefault(AsmName, AsmName);

		private static Dictionary<string, string> AsmOverrides = new Dictionary<string, string>
		{
			{ "0.com.github.MonoDetour.BepInEx.5", "MonoDetour" },
			{ "BepInEx.MonoMod.AutoHookGenPatcher", "AutoHookGenPatcher" },
			{ "Hamunii.DetourContext.Dispose_Fix", "DetourCtxDisposeFix" }
		};

		public string AsmName;

		public string AsmVersion;

		public string TypeName;

		[CompilerGenerated]
		private bool PrintMembers(StringBuilder builder)
		{
			builder.Append("AsmName = ");
			builder.Append((object?)AsmName);
			builder.Append(", AsmVersion = ");
			builder.Append((object?)AsmVersion);
			builder.Append(", TypeName = ");
			builder.Append((object?)TypeName);
			builder.Append(", CleanAsmName = ");
			builder.Append((object?)CleanAsmName);
			return true;
		}
	}
	[BepInPlugin("org.silksong-modding.modlist", "Modlist", "0.3.1")]
	public class ModlistPlugin : BaseUnityPlugin
	{
		private List<BepInPlugin> _majors = new List<BepInPlugin>();

		private List<BepInPlugin> _minors = new List<BepInPlugin>();

		private List<PatcherMeta> _patchers = new List<PatcherMeta>();

		private GameObject? _modListGO;

		private ModListDraw? _modListDraw;

		internal ConfigEntry<DisplayMode> DisplayMode;

		internal ConfigEntry<bool> LogFileTree;

		public const string Id = "org.silksong-modding.modlist";

		public string GameVersion => Constants.GetConstantValue<string>("GAME_VERSION");

		public static ModlistPlugin Instance { get; private set; }

		public string ReducedListString => $"{ModListPrefix}\n{MajorListJoined}\n+ {_minors.Count} others\n& {_patchers.Count} patchers";

		public string FullListString => ModListPrefix + "\n" + PatcherListJoined + "\n" + MajorListJoined + "\n" + MinorListJoined;

		private string ModListPrefix => "v" + GameVersion + "-" + Version;

		public List<string> MajorList => _majors.Select((BepInPlugin plugin) => $"{plugin.Name}: {plugin.Version}").ToList();

		public List<string> MinorList => _minors.Select((BepInPlugin plugin) => $"{plugin.Name}: {plugin.Version}").ToList();

		public List<string> PatcherList => _patchers.Select((PatcherMeta patcher) => patcher.CleanAsmName + " * : " + patcher.AsmVersion).ToList();

		private string MajorListJoined => string.Join("\n", MajorList);

		private string MinorListJoined => string.Join("\n", MinorList);

		private string PatcherListJoined => string.Join("\n", PatcherList);

		internal string MajorNamesJoined => string.Join(", ", _majors.Select((BepInPlugin plugin) => plugin.Name ?? ""));

		public int ModCount => _majors.Count + _minors.Count + _patchers.Count + 1;

		public static string Name => "Modlist";

		public static string Version => "0.3.1";

		private void Awake()
		{
			Instance = this;
			DisplayMode = ((BaseUnityPlugin)this).Config.Bind<DisplayMode>("General", "DisplayMode", Silksong.Modlist.DisplayMode.Full, "How to display the top-left mod list. The mod count on the title screen will always be visible.");
			LogFileTree = ((BaseUnityPlugin)this).Config.Bind<bool>("General", "LogModFiles", true, "Whether to include a filetree in LogOutput.log for troubleshooting.");
			_patchers = GetPatchers();
		}

		private void Start()
		{
			//IL_0017: Unknown result type (might be due to invalid IL or missing references)
			//IL_0021: Expected O, but got Unknown
			Harmony.CreateAndPatchAll(typeof(ModlistPatches), (string)null);
			_modListGO = new GameObject("Silksong.ModList");
			_modListDraw = _modListGO.AddComponent<ModListDraw>();
			Object.DontDestroyOnLoad((Object)(object)_modListGO);
			DisplayMode.SettingChanged += delegate
			{
				GenerateModList();
			};
			GenerateModList();
			((BaseUnityPlugin)this).Logger.LogInfo((object)LogModLists());
			if (LogFileTree.Value)
			{
				((BaseUnityPlugin)this).Logger.LogInfo((object)("Plugins Directory:\n" + FileTree.RenderTree(Paths.PluginPath)));
				((BaseUnityPlugin)this).Logger.LogInfo((object)("Patchers Directory:\n" + FileTree.RenderTree(Paths.PatcherPluginPath)));
			}
		}

		private string LogModLists()
		{
			StringBuilder stringBuilder = new StringBuilder("\n\n======== Modlist ========\nSilksong version: " + GameVersion + "\n");
			stringBuilder.AppendLine($"PLUGINS: {_majors.Count + _minors.Count} ({_majors.Count} depend on Modlist)");
			foreach (BepInPlugin item in _majors.OrderBy((BepInPlugin x) => x.Name))
			{
				stringBuilder.AppendLine(("[ " + item.Name).PadRight(20) + $": {item.Version}".PadRight(8) + "] " + item.GUID);
			}
			foreach (BepInPlugin item2 in _minors.OrderBy((BepInPlugin x) => x.Name))
			{
				stringBuilder.AppendLine(("[ " + item2.Name).PadRight(20) + $": {item2.Version}".PadRight(8) + "] " + item2.GUID);
			}
			stringBuilder.AppendLine($"PATCHERS: {_patchers.Count}");
			foreach (PatcherMeta item3 in _patchers.OrderBy((PatcherMeta x) => x.AsmName))
			{
				stringBuilder.AppendLine(("[ " + item3.AsmName).PadRight(40) + (": " + item3.AsmVersion).PadRight(10) + "]::" + item3.TypeName);
			}
			stringBuilder.AppendLine("=========================");
			return stringBuilder.ToString();
		}

		private void GenerateModList()
		{
			(_majors, _minors) = GetPlugins();
			((Behaviour)_modListDraw).enabled = DisplayMode.Value != Silksong.Modlist.DisplayMode.Hidden;
			ModListDraw modListDraw = _modListDraw;
			modListDraw.MenuDrawString = DisplayMode.Value switch
			{
				Silksong.Modlist.DisplayMode.Hidden => "", 
				Silksong.Modlist.DisplayMode.Reduced => ReducedListString, 
				_ => FullListString, 
			};
			ModListDraw? modListDraw2 = _modListDraw;
			string pauseDrawString = ((DisplayMode.Value != Silksong.Modlist.DisplayMode.Hidden) ? ReducedListString : "");
			modListDraw2.PauseDrawString = pauseDrawString;
		}

		private List<PatcherMeta> GetPatchers()
		{
			List<PatcherMeta> list = new List<PatcherMeta>();
			string[] files = Directory.GetFiles(Path.GetFullPath(Paths.PatcherPluginPath), "*.dll", SearchOption.AllDirectories);
			foreach (string text in files)
			{
				try
				{
					AssemblyDefinition asm = AssemblyDefinition.ReadAssembly(text, TypeLoader.ReaderParameters);
					IEnumerable<PatcherMeta> collection = ((IEnumerable<TypeDefinition>)asm.MainModule.Types).Where(delegate(TypeDefinition typeDef)
					{
						if (typeDef.IsInterface || (typeDef.IsAbstract && !typeDef.IsSealed))
						{
							return false;
						}
						MethodDefinition val = ((IEnumerable<MethodDefinition>)typeDef.Methods).FirstOrDefault((Func<MethodDefinition, bool>)((MethodDefinition m) => ((MemberReference)m).Name.Equals("get_TargetDLLs", StringComparison.InvariantCultureIgnoreCase) && m.IsPublic && m.IsStatic));
						return val != null && !(((MemberReference)((MethodReference)val).ReturnType).FullName != "System.Collections.Generic.IEnumerable`1<System.String>") && ((IEnumerable<MethodDefinition>)typeDef.Methods).FirstOrDefault((Func<MethodDefinition, bool>)((MethodDefinition m) => ((MemberReference)m).Name.Equals("Patch") && m.IsPublic && m.IsStatic && ((MemberReference)((MethodReference)m).ReturnType).FullName == "System.Void" && ((MethodReference)m).Parameters.Count == 1 && (((MemberReference)((ParameterReference)((MethodReference)m).Parameters[0]).ParameterType).FullName == "Mono.Cecil.AssemblyDefinition&" || ((MemberReference)((ParameterReference)((MethodReference)m).Parameters[0]).ParameterType).FullName == "Mono.Cecil.AssemblyDefinition"))) != null;
					}).Select(delegate(TypeDefinition typeDef)
					{
						PatcherMeta result = default(PatcherMeta);
						result.AsmName = ((AssemblyNameReference)asm.Name).Name;
						result.AsmVersion = ((AssemblyNameReference)asm.Name).Version.ToString();
						result.TypeName = ((MemberReference)typeDef).Name;
						return result;
					});
					list.AddRange(collection);
				}
				catch (BadImageFormatException ex)
				{
					((BaseUnityPlugin)this).Logger.LogDebug((object)("Skipping loading " + text + " because it's not a valid .NET assembly. Full error: " + ex.Message));
				}
				catch (Exception ex2)
				{
					((BaseUnityPlugin)this).Logger.LogError((object)ex2.ToString());
				}
			}
			return list;
		}

		private (List<BepInPlugin>, List<BepInPlugin>) GetPlugins()
		{
			Dictionary<string, PluginInfo> pluginInfos = Chainloader.PluginInfos;
			List<BepInPlugin> list = new List<BepInPlugin>();
			List<BepInPlugin> list2 = new List<BepInPlugin>();
			foreach (var (text2, val2) in pluginInfos)
			{
				if (val2 == null)
				{
					((BaseUnityPlugin)this).Logger.LogWarning((object)("Plugin " + text2 + " has no PluginInfo, ignoring..."));
				}
				else
				{
					if (text2 == "org.silksong-modding.modlist")
					{
						continue;
					}
					if (val2.Instance == null)
					{
						((BaseUnityPlugin)this).Logger.LogWarning((object)("Plugin " + text2 + " is null, ignoring..."));
						continue;
					}
					Attribute? customAttribute = Attribute.GetCustomAttribute(((object)val2.Instance).GetType(), typeof(BepInPlugin));
					BepInPlugin item = (BepInPlugin)(object)((customAttribute is BepInPlugin) ? customAttribute : null);
					if (val2.Dependencies.FirstOrDefault((Func<BepInDependency, bool>)((BepInDependency x) => ((Enum)x.Flags).HasFlag((Enum)(object)(DependencyFlags)1) && x.DependencyGUID == "org.silksong-modding.modlist")) != null)
					{
						list.Add(item);
					}
					else
					{
						list2.Add(item);
					}
				}
			}
			list.Sort((BepInPlugin a, BepInPlugin b) => string.Compare(a.Name, b.Name, StringComparison.Ordinal));
			list2.Sort((BepInPlugin a, BepInPlugin b) => string.Compare(a.Name, b.Name, StringComparison.Ordinal));
			return (list, list2);
		}
	}
	public static class ModlistPatches
	{
		[HarmonyPatch(typeof(SetVersionNumber), "Start")]
		[HarmonyPostfix]
		public static void SetVersionNumber_Start(SetVersionNumber __instance)
		{
			string text = __instance.textUi.text;
			text += $" | {ModlistPlugin.Instance.ModCount} Mods\n{ModlistPlugin.Instance.MajorNamesJoined}";
			__instance.textUi.text = text;
		}
	}
}