using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Text;
using BepInEx;
using BepInEx.Logging;
using Microsoft.CodeAnalysis;
using R2API;
using RoR2;
using UnityEngine;
using UnityEngine.AddressableAssets;
using UnityEngine.Rendering;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: AssemblyVersion("0.0.0.0")]
[module: RefSafetyRules(11)]
namespace Microsoft.CodeAnalysis
{
	[CompilerGenerated]
	[Embedded]
	internal sealed class EmbeddedAttribute : Attribute
	{
	}
}
namespace System.Runtime.CompilerServices
{
	[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 SnakeCaptain
{
	[BepInPlugin("com.chaz.snakecaptain", "SnakeCaptain", "1.0.0")]
	[BepInDependency(/*Could not decode attribute arguments.*/)]
	[BepInDependency(/*Could not decode attribute arguments.*/)]
	public class SnakeCaptainPlugin : BaseUnityPlugin
	{
		public const string PluginGUID = "com.chaz.snakecaptain";

		public const string PluginName = "SnakeCaptain";

		public const string PluginVersion = "1.0.0";

		private const string SkinNameToken = "CHAZ_SNAKECAPTAIN_SKIN_NAME";

		internal static ManualLogSource Log;

		public static SkinDef Skin { get; private set; }

		private void Awake()
		{
			Log = ((BaseUnityPlugin)this).Logger;
			try
			{
				LanguageAPI.Add("CHAZ_SNAKECAPTAIN_SKIN_NAME", "Solid Snake");
				AddSkin();
			}
			catch (Exception ex)
			{
				((BaseUnityPlugin)this).Logger.LogError((object)("Failed to add Solid Snake skin: " + ex));
			}
		}

		private void AddSkin()
		{
			//IL_0152: Unknown result type (might be due to invalid IL or missing references)
			//IL_017d: Unknown result type (might be due to invalid IL or missing references)
			//IL_0182: Unknown result type (might be due to invalid IL or missing references)
			//IL_0192: Unknown result type (might be due to invalid IL or missing references)
			//IL_0197: Unknown result type (might be due to invalid IL or missing references)
			//IL_01aa: Unknown result type (might be due to invalid IL or missing references)
			//IL_01af: Unknown result type (might be due to invalid IL or missing references)
			//IL_01bf: Unknown result type (might be due to invalid IL or missing references)
			//IL_01c4: Unknown result type (might be due to invalid IL or missing references)
			//IL_01f4: Unknown result type (might be due to invalid IL or missing references)
			//IL_01f9: Unknown result type (might be due to invalid IL or missing references)
			//IL_0203: Unknown result type (might be due to invalid IL or missing references)
			//IL_0208: Unknown result type (might be due to invalid IL or missing references)
			//IL_021e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0235: Unknown result type (might be due to invalid IL or missing references)
			//IL_0237: Unknown result type (might be due to invalid IL or missing references)
			//IL_0240: Unknown result type (might be due to invalid IL or missing references)
			//IL_0257: Unknown result type (might be due to invalid IL or missing references)
			//IL_0259: Unknown result type (might be due to invalid IL or missing references)
			//IL_0289: Unknown result type (might be due to invalid IL or missing references)
			//IL_0106: Unknown result type (might be due to invalid IL or missing references)
			//IL_0122: Unknown result type (might be due to invalid IL or missing references)
			GameObject val = Load<GameObject>("RoR2/Base/Captain/CaptainBody.prefab");
			GameObject gameObject = ((Component)val.GetComponent<ModelLocator>().modelTransform).gameObject;
			SkinnedMeshRenderer val2 = FindRenderer(gameObject, "Captain");
			SkinnedMeshRenderer val3 = FindRenderer(gameObject, "CaptainChestArmor");
			Dictionary<string, Matrix4x4> bindposes = Assets.ReadBindposes("bindposes.bin");
			Mesh mesh = Assets.ReadSkinnedMesh("snake_body.hkm", val2, bindposes);
			Mesh mesh2 = Assets.ReadSkinnedMesh("snake_hair.hkm", val3, bindposes);
			Material template = LoadTemplate();
			Material m = Assets.MakeMaterial(template, "matSnakeBody", Assets.ReadTexture("snake_body.png"), cutout: false, 0.15f, 12f);
			Material m2 = Assets.MakeMaterial(template, "matSnakeHair", Assets.ReadTexture("snake_hair.png"), cutout: true, 0.05f, 20f);
			string[] obj = new string[5] { "CaptainCoat", "CaptainGunArm", "CaptainHead", "CaptainUndercoat", "CaptainArmature/ROOT/base/stomach/chest/neck/head/CaptainHat" };
			List<GameObjectActivation> list = new List<GameObjectActivation>();
			string[] array = obj;
			foreach (string text in array)
			{
				Transform val4 = gameObject.transform.Find(text);
				if (Object.op_Implicit((Object)(object)val4))
				{
					list.Add(new GameObjectActivation
					{
						gameObject = ((Component)val4).gameObject,
						shouldActivate = false
					});
				}
				else
				{
					((BaseUnityPlugin)this).Logger.LogWarning((object)("Not found, left as is: " + text));
				}
			}
			Skin = Skins.CreateNewSkinDef(new SkinDefParamsInfo
			{
				Name = "skinCaptainSolidSnake",
				NameToken = "CHAZ_SNAKECAPTAIN_SKIN_NAME",
				Icon = Skins.CreateSkinIcon(Color32.op_Implicit(new Color32((byte)92, (byte)108, (byte)118, byte.MaxValue)), Color32.op_Implicit(new Color32((byte)28, (byte)28, (byte)30, byte.MaxValue)), Color32.op_Implicit(new Color32((byte)178, (byte)124, (byte)92, byte.MaxValue)), Color32.op_Implicit(new Color32((byte)52, (byte)60, (byte)66, byte.MaxValue))),
				RootObject = gameObject,
				BaseSkins = Array.Empty<SkinDef>(),
				RendererInfos = (RendererInfo[])(object)new RendererInfo[2]
				{
					RendererInfo((Renderer)(object)val2, m),
					RendererInfo((Renderer)(object)val3, m2)
				},
				MeshReplacements = (MeshReplacement[])(object)new MeshReplacement[2]
				{
					new MeshReplacement
					{
						renderer = (Renderer)(object)val2,
						mesh = mesh
					},
					new MeshReplacement
					{
						renderer = (Renderer)(object)val3,
						mesh = mesh2
					}
				},
				ProjectileGhostReplacements = Array.Empty<ProjectileGhostReplacement>(),
				GameObjectActivations = list.ToArray(),
				MinionSkinReplacements = Array.Empty<MinionSkinReplacement>()
			});
			if (!Skins.AddSkinToCharacter(val, Skin))
			{
				throw new Exception("R2API refused the skin");
			}
			((BaseUnityPlugin)this).Logger.LogInfo((object)"Added Solid Snake skin to Captain");
		}

		private Material LoadTemplate()
		{
			string[] array = new string[2] { "RoR2/Base/Captain/matCaptain.mat", "RoR2/DLC2/Seeker/matSeeker.mat" };
			foreach (string text in array)
			{
				try
				{
					return Load<Material>(text);
				}
				catch (Exception ex)
				{
					((BaseUnityPlugin)this).Logger.LogWarning((object)("Template " + text + ": " + ex.Message));
				}
			}
			throw new Exception("No material template");
		}

		private static T Load<T>(string key) where T : Object
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			T val = Addressables.LoadAssetAsync<T>((object)key).WaitForCompletion();
			if (!Object.op_Implicit((Object)(object)val))
			{
				throw new Exception("Missing addressable " + key);
			}
			return val;
		}

		private static SkinnedMeshRenderer FindRenderer(GameObject model, string path)
		{
			Transform val = model.transform.Find(path);
			SkinnedMeshRenderer obj = (Object.op_Implicit((Object)(object)val) ? ((Component)val).GetComponent<SkinnedMeshRenderer>() : null);
			if (!Object.op_Implicit((Object)(object)obj))
			{
				throw new Exception("Renderer not found: " + path);
			}
			return obj;
		}

		private static RendererInfo RendererInfo(Renderer r, Material m)
		{
			//IL_0002: Unknown result type (might be due to invalid IL or missing references)
			//IL_001b: 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)
			return new RendererInfo
			{
				renderer = r,
				defaultMaterial = m,
				defaultShadowCastingMode = (ShadowCastingMode)1,
				ignoreOverlays = false
			};
		}
	}
	internal static class Assets
	{
		private static Stream Open(string name)
		{
			return typeof(Assets).Assembly.GetManifestResourceStream(name) ?? throw new FileNotFoundException("Embedded resource missing: " + name);
		}

		public static Dictionary<string, Matrix4x4> ReadBindposes(string name)
		{
			//IL_0027: Unknown result type (might be due to invalid IL or missing references)
			//IL_0056: Unknown result type (might be due to invalid IL or missing references)
			using BinaryReader binaryReader = new BinaryReader(Open(name));
			Dictionary<string, Matrix4x4> dictionary = new Dictionary<string, Matrix4x4>();
			int num = binaryReader.ReadInt32();
			for (int i = 0; i < num; i++)
			{
				string key = ReadString(binaryReader);
				Matrix4x4 value = default(Matrix4x4);
				for (int j = 0; j < 16; j++)
				{
					((Matrix4x4)(ref value))[j / 4, j % 4] = binaryReader.ReadSingle();
				}
				dictionary[key] = value;
			}
			return dictionary;
		}

		public static Mesh ReadSkinnedMesh(string name, SkinnedMeshRenderer target, Dictionary<string, Matrix4x4> bindposes)
		{
			//IL_014e: Unknown result type (might be due to invalid IL or missing references)
			//IL_0153: Unknown result type (might be due to invalid IL or missing references)
			//IL_017f: Unknown result type (might be due to invalid IL or missing references)
			//IL_0184: Unknown result type (might be due to invalid IL or missing references)
			//IL_01aa: Unknown result type (might be due to invalid IL or missing references)
			//IL_01af: Unknown result type (might be due to invalid IL or missing references)
			//IL_0223: Unknown result type (might be due to invalid IL or missing references)
			//IL_028b: Unknown result type (might be due to invalid IL or missing references)
			//IL_028d: Unknown result type (might be due to invalid IL or missing references)
			//IL_02ce: Unknown result type (might be due to invalid IL or missing references)
			//IL_02d3: Unknown result type (might be due to invalid IL or missing references)
			//IL_02eb: Expected O, but got Unknown
			using BinaryReader binaryReader = new BinaryReader(Open(name));
			if (new string(binaryReader.ReadChars(4)) != "HKM1")
			{
				throw new InvalidDataException(name);
			}
			int num = binaryReader.ReadInt32();
			string[] array = new string[num];
			for (int i = 0; i < num; i++)
			{
				array[i] = ReadString(binaryReader);
			}
			Transform[] bones = target.bones;
			Dictionary<string, int> byName = new Dictionary<string, int>();
			for (int j = 0; j < bones.Length; j++)
			{
				if (Object.op_Implicit((Object)(object)bones[j]) && !byName.ContainsKey(((Object)bones[j]).name))
				{
					byName[((Object)bones[j]).name] = j;
				}
			}
			Matrix4x4 value;
			int[] array2 = array.Select(delegate(string b)
			{
				if (!byName.TryGetValue(b, out value))
				{
					throw new Exception(name + ": bone " + b + " not on " + ((Object)target).name);
				}
				return value;
			}).ToArray();
			int num2 = binaryReader.ReadInt32();
			Vector3[] array3 = (Vector3[])(object)new Vector3[num2];
			Vector3[] array4 = (Vector3[])(object)new Vector3[num2];
			Vector2[] array5 = (Vector2[])(object)new Vector2[num2];
			for (int num3 = 0; num3 < num2; num3++)
			{
				array3[num3] = new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle());
			}
			for (int num4 = 0; num4 < num2; num4++)
			{
				array4[num4] = new Vector3(binaryReader.ReadSingle(), binaryReader.ReadSingle(), binaryReader.ReadSingle());
			}
			for (int num5 = 0; num5 < num2; num5++)
			{
				array5[num5] = new Vector2(binaryReader.ReadSingle(), binaryReader.ReadSingle());
			}
			int[] array6 = new int[num2 * 4];
			for (int num6 = 0; num6 < array6.Length; num6++)
			{
				array6[num6] = array2[binaryReader.ReadInt32()];
			}
			BoneWeight[] array7 = (BoneWeight[])(object)new BoneWeight[num2];
			for (int num7 = 0; num7 < num2; num7++)
			{
				float weight = binaryReader.ReadSingle();
				float weight2 = binaryReader.ReadSingle();
				float weight3 = binaryReader.ReadSingle();
				float weight4 = binaryReader.ReadSingle();
				int num8 = num7;
				BoneWeight val = default(BoneWeight);
				((BoneWeight)(ref val)).boneIndex0 = array6[num7 * 4];
				((BoneWeight)(ref val)).boneIndex1 = array6[num7 * 4 + 1];
				((BoneWeight)(ref val)).boneIndex2 = array6[num7 * 4 + 2];
				((BoneWeight)(ref val)).boneIndex3 = array6[num7 * 4 + 3];
				((BoneWeight)(ref val)).weight0 = weight;
				((BoneWeight)(ref val)).weight1 = weight2;
				((BoneWeight)(ref val)).weight2 = weight3;
				((BoneWeight)(ref val)).weight3 = weight4;
				array7[num8] = val;
			}
			int num9 = binaryReader.ReadInt32();
			int[] array8 = new int[num9];
			for (int num10 = 0; num10 < num9; num10++)
			{
				array8[num10] = binaryReader.ReadInt32();
			}
			Mesh val2 = new Mesh
			{
				name = Path.GetFileNameWithoutExtension(name)
			};
			if (num2 > 65535)
			{
				val2.indexFormat = (IndexFormat)1;
			}
			val2.vertices = array3;
			val2.normals = array4;
			val2.uv = array5;
			val2.SetIndices(array8, (MeshTopology)0, 0);
			val2.boneWeights = array7;
			val2.bindposes = bones.Select((Transform b) => (!Object.op_Implicit((Object)(object)b) || !bindposes.TryGetValue(((Object)b).name, out value)) ? Matrix4x4.identity : value).ToArray();
			val2.RecalculateTangents();
			val2.RecalculateBounds();
			return val2;
		}

		public static Texture2D ReadTexture(string name)
		{
			//IL_0018: 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_0029: Unknown result type (might be due to invalid IL or missing references)
			//IL_0035: Expected O, but got Unknown
			//IL_0036: Unknown result type (might be due to invalid IL or missing references)
			//IL_003d: 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_004b: Unknown result type (might be due to invalid IL or missing references)
			//IL_0054: Expected O, but got Unknown
			using Stream stream = Open(name);
			using MemoryStream memoryStream = new MemoryStream();
			stream.CopyTo(memoryStream);
			Texture2D val = new Texture2D(2, 2, (TextureFormat)4, true)
			{
				name = Path.GetFileNameWithoutExtension(name)
			};
			ImageConversion.LoadImage(val, memoryStream.ToArray());
			((Texture)val).wrapMode = (TextureWrapMode)1;
			((Texture)val).filterMode = (FilterMode)2;
			((Texture)val).anisoLevel = 4;
			val.Apply(true, true);
			return val;
		}

		public static Material MakeMaterial(Material template, string name, Texture2D tex, bool cutout, float specular, float exponent)
		{
			//IL_0001: Unknown result type (might be due to invalid IL or missing references)
			//IL_0006: Unknown result type (might be due to invalid IL or missing references)
			//IL_000e: Expected O, but got Unknown
			//IL_0020: Unknown result type (might be due to invalid IL or missing references)
			//IL_004c: Unknown result type (might be due to invalid IL or missing references)
			Material val = new Material(template)
			{
				name = name
			};
			val.SetTexture("_MainTex", (Texture)(object)tex);
			val.SetColor("_Color", Color.white);
			val.SetTexture("_NormalTex", (Texture)null);
			val.SetFloat("_NormalStrength", 0f);
			val.SetColor("_EmColor", Color.black);
			val.SetTexture("_EmTex", (Texture)null);
			val.SetFloat("_EmPower", 0f);
			val.SetFloat("_SpecularStrength", specular);
			val.SetFloat("_SpecularExponent", exponent);
			val.SetFloat("_FlowmapOn", 0f);
			val.DisableKeyword("FLOWMAP");
			val.SetFloat("_FEON", 0f);
			val.DisableKeyword("FRESNEL_EMISSION");
			val.SetFloat("_LimbRemovalOn", 0f);
			val.DisableKeyword("LIMBREMOVAL");
			val.SetFloat("_ColorsOn", 0f);
			val.DisableKeyword("USE_VERTEX_COLORS");
			val.SetFloat("_EnableCutout", cutout ? 1f : 0f);
			if (cutout)
			{
				val.EnableKeyword("CUTOUT");
			}
			else
			{
				val.DisableKeyword("CUTOUT");
			}
			return val;
		}

		private static string ReadString(BinaryReader r)
		{
			return Encoding.UTF8.GetString(r.ReadBytes(r.ReadInt32()));
		}
	}
}