using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Security.Permissions;
using BepInEx;
using BepInEx.Logging;
using MonoMod.RuntimeDetour.HookGen;
using RoR2;
using RoR2.ContentManagement;
using UnityEngine;
using UnityEngine.AddressableAssets;
using UnityEngine.Rendering;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("0.0.0.0")]
namespace GammaMulT;

[BepInPlugin("com.Fokusnuss.GammaMulT", "Gamma Mul-T", "1.0.0")]
public class GammaMulTPlugin : BaseUnityPlugin
{
	private class FieldException : Exception
	{
		public FieldException(string message, Exception innerException)
			: base(message, innerException)
		{
		}
	}

	private class ElementException : Exception
	{
		public int Index { get; }

		public ElementException(int index, string message)
			: base(message)
		{
			Index = index;
		}
	}

	private static AssetBundle assetBundle;

	private static readonly List<Material> materialsWithRoRShader = new List<Material>();

	internal static GammaMulTPlugin Instance { get; private set; }

	internal static ManualLogSource InstanceLogger
	{
		get
		{
			GammaMulTPlugin instance = Instance;
			if (instance == null)
			{
				return null;
			}
			return ((BaseUnityPlugin)instance).Logger;
		}
	}

	private void Start()
	{
		Instance = this;
		using (Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("GammaMulT.fokusnussgammamult"))
		{
			assetBundle = AssetBundle.LoadFromStream(stream);
		}
		((ResourceAvailability)(ref BodyCatalog.availability)).CallWhenAvailable((Action)BodyCatalogInit);
		HookEndpointManager.Add((MethodBase)typeof(Language).GetMethod("LoadStrings"), (Delegate)new Action<Action<Language>, Language>(LanguageLoadStrings));
		ReplaceShaders();
	}

	private static void ReplaceShaders()
	{
		LoadMaterialsWithReplacedShader("RoR2/Base/Shaders/HGStandard.shader", "Assets/Gamma Mul-T/New Material.mat");
	}

	private static void LoadMaterialsWithReplacedShader(string shaderPath, params string[] materialPaths)
	{
		//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)
		Shader shader = Addressables.LoadAssetAsync<Shader>((object)shaderPath).WaitForCompletion();
		foreach (string text in materialPaths)
		{
			Material val = assetBundle.LoadAsset<Material>(text);
			val.shader = shader;
			materialsWithRoRShader.Add(val);
		}
	}

	private static void LanguageLoadStrings(Action<Language> orig, Language self)
	{
		orig(self);
		self.SetStringByToken("FOKUSNUSS_SKIN_GAMMA_MUL-T_SKINDEF_NAME", "Gamma Mul-T");
	}

	private static void BodyCatalogInit()
	{
		AddToolbotBodyGammaMulTSKinDefSkin();
	}

	private static void AddToolbotBodyGammaMulTSKinDefSkin()
	{
		string text = "ToolbotBody";
		string text2 = "Gamma Mul-T SKinDef";
		try
		{
			GameObject val = BodyCatalog.FindBodyPrefab(text);
			if (!Object.op_Implicit((Object)(object)val))
			{
				InstanceLogger.LogWarning((object)("Failed to add \"" + text2 + "\" skin because \"" + text + "\" doesn't exist"));
				return;
			}
			ModelLocator component = val.GetComponent<ModelLocator>();
			if (!Object.op_Implicit((Object)(object)component))
			{
				InstanceLogger.LogWarning((object)("Failed to add \"" + text2 + "\" skin to \"" + text + "\" because it doesn't have \"ModelLocator\" component"));
				return;
			}
			GameObject gameObject = ((Component)component.modelTransform).gameObject;
			ModelSkinController val2 = (Object.op_Implicit((Object)(object)gameObject) ? gameObject.GetComponent<ModelSkinController>() : null);
			if (!Object.op_Implicit((Object)(object)val2))
			{
				InstanceLogger.LogWarning((object)("Failed to add \"" + text2 + "\" skin to \"" + text + "\" because it doesn't have \"ModelSkinController\" component"));
				return;
			}
			Renderer[] renderers = gameObject.GetComponentsInChildren<Renderer>(true);
			gameObject.GetComponentsInChildren<Light>(true);
			SkinDef skin = ScriptableObject.CreateInstance<SkinDef>();
			SkinDefParams skinParams = ScriptableObject.CreateInstance<SkinDefParams>();
			skin.skinDefParams = skinParams;
			TryCatchThrow("Icon", delegate
			{
				skin.icon = assetBundle.LoadAsset<Sprite>("Assets\\SkinMods\\GammaMulT\\Icons\\Gamma Mul-T SKinDefIcon.png");
			});
			((Object)skin).name = text2;
			skin.nameToken = "FOKUSNUSS_SKIN_GAMMA_MUL-T_SKINDEF_NAME";
			skin.rootObject = gameObject;
			TryCatchThrow("Base Skins", delegate
			{
				skin.baseSkins = Array.Empty<SkinDef>();
			});
			TryCatchThrow("Unlockable Name", delegate
			{
				skin.unlockableDef = ((IEnumerable<UnlockableDef>)ContentManager.unlockableDefs).FirstOrDefault((Func<UnlockableDef, bool>)((UnlockableDef def) => def.cachedName == "GammaMulT"));
			});
			TryCatchThrow("Game Object Activations", delegate
			{
				skinParams.gameObjectActivations = Array.Empty<GameObjectActivation>();
			});
			TryCatchThrow("Renderer Infos", delegate
			{
				//IL_0010: Unknown result type (might be due to invalid IL or missing references)
				//IL_002f: Unknown result type (might be due to invalid IL or missing references)
				//IL_0078: Unknown result type (might be due to invalid IL or missing references)
				//IL_0079: Unknown result type (might be due to invalid IL or missing references)
				skinParams.rendererInfos = (RendererInfo[])(object)new RendererInfo[1]
				{
					new RendererInfo
					{
						defaultMaterial = assetBundle.LoadAsset<Material>("Assets/Gamma Mul-T/New Material.mat"),
						defaultShadowCastingMode = (ShadowCastingMode)1,
						ignoreOverlays = false,
						renderer = ThrowIfNull<Renderer>(0, "There is no renderer with the name \"ToolbotMesh\"", ((IEnumerable<Renderer>)renderers).FirstOrDefault((Func<Renderer, bool>)((Renderer r) => ((Object)r).name == "ToolbotMesh")))
					}
				};
			});
			TryCatchThrow("Mesh Replacements", delegate
			{
				//IL_0010: Unknown result type (might be due to invalid IL or missing references)
				//IL_0068: Unknown result type (might be due to invalid IL or missing references)
				//IL_0069: Unknown result type (might be due to invalid IL or missing references)
				//IL_0072: Unknown result type (might be due to invalid IL or missing references)
				//IL_00bc: Unknown result type (might be due to invalid IL or missing references)
				//IL_00bd: Unknown result type (might be due to invalid IL or missing references)
				skinParams.meshReplacements = (MeshReplacement[])(object)new MeshReplacement[2]
				{
					new MeshReplacement
					{
						mesh = assetBundle.LoadAsset<Mesh>("Assets\\SkinMods\\GammaMulT\\Meshes\\E102_LOD2.mesh"),
						renderer = ThrowIfNull<Renderer>(0, "There is no renderer with the name \"ToolbotMesh\"", ((IEnumerable<Renderer>)renderers).FirstOrDefault((Func<Renderer, bool>)((Renderer r) => ((Object)r).name == "ToolbotMesh")))
					},
					new MeshReplacement
					{
						mesh = null,
						renderer = ThrowIfNull<Renderer>(1, "There is no renderer with the name \"RebarMesh\"", ((IEnumerable<Renderer>)renderers).FirstOrDefault((Func<Renderer, bool>)((Renderer r) => ((Object)r).name == "RebarMesh")))
					}
				};
			});
			TryCatchThrow("Light Infos", delegate
			{
				skinParams.lightReplacements = (LightInfo[])(object)new LightInfo[0];
			});
			TryCatchThrow("Minion Skin Replacements", delegate
			{
				skinParams.minionSkinReplacements = Array.Empty<MinionSkinReplacement>();
			});
			TryCatchThrow("Projectile Ghost Replacements", delegate
			{
				skinParams.projectileGhostReplacements = Array.Empty<ProjectileGhostReplacement>();
			});
			Array.Resize(ref val2.skins, val2.skins.Length + 1);
			val2.skins[val2.skins.Length - 1] = skin;
		}
		catch (FieldException ex)
		{
			if (ex.InnerException is ElementException ex2)
			{
				InstanceLogger.LogWarning((object)("Failed to add \"" + text2 + "\" skin to \"" + text + "\""));
				InstanceLogger.LogWarning((object)$"Field causing issue: {ex.Message}, element: {ex2.Index}");
				InstanceLogger.LogWarning((object)ex2.Message);
				InstanceLogger.LogError((object)ex.InnerException);
			}
			else
			{
				InstanceLogger.LogWarning((object)("Failed to add \"" + text2 + "\" skin to \"" + text + "\""));
				InstanceLogger.LogWarning((object)("Field causing issue: " + ex.Message));
				InstanceLogger.LogError((object)ex.InnerException);
			}
		}
		catch (Exception ex3)
		{
			InstanceLogger.LogWarning((object)("Failed to add \"" + text2 + "\" skin to \"" + text + "\""));
			InstanceLogger.LogError((object)ex3);
		}
	}

	private static T ThrowIfEquals<T>(int index, string message, T value, T expected) where T : Enum
	{
		if (value.Equals(expected))
		{
			throw new ElementException(index, message);
		}
		return value;
	}

	private static T ThrowIfOutOfBounds<T>(int index, string message, T[] array, int elementIndex) where T : class
	{
		if (array == null || array.Length <= elementIndex)
		{
			throw new ElementException(index, message);
		}
		return array[elementIndex];
	}

	private static T ThrowIfNull<T>(int index, string message, T value) where T : class
	{
		if (value == null)
		{
			throw new ElementException(index, message);
		}
		return value;
	}

	private static void TryCatchThrow(string message, Action action)
	{
		try
		{
			action?.Invoke();
		}
		catch (Exception innerException)
		{
			throw new FieldException(message, innerException);
		}
	}

	private static void TryAddComponent<T>(GameObject obj) where T : Component
	{
		if (Object.op_Implicit((Object)(object)obj) && !Object.op_Implicit((Object)(object)obj.GetComponent<T>()))
		{
			obj.AddComponent<T>();
		}
	}
}