using System;
using System.Collections;
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 System.Security.Permissions;
using BepInEx;
using HarmonyLib;
using Microsoft.CodeAnalysis;
using RoR2;
using RoR2.Projectile;
using UnityEngine;
using UnityEngine.AddressableAssets;

[assembly: CompilationRelaxations(8)]
[assembly: RuntimeCompatibility(WrapNonExceptionThrows = true)]
[assembly: Debuggable(DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints)]
[assembly: TargetFramework(".NETStandard,Version=v2.1", FrameworkDisplayName = ".NET Standard 2.1")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("0.1.2.0")]
[module: RefSafetyRules(11)]
namespace Microsoft.CodeAnalysis
{
	[CompilerGenerated]
	[Microsoft.CodeAnalysis.Embedded]
	internal sealed class EmbeddedAttribute : Attribute
	{
	}
}
namespace System.Runtime.CompilerServices
{
	[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 Prototype
{
	[BepInPlugin("prototype.item.singularity", "SingularityBand", "0.1.2")]
	public class SingularityBand : BaseUnityPlugin
	{
		private static class Update
		{
			internal static void Apply()
			{
				if (!Version.TryParse(RoR2Application.GetBuildId(), out Version result) || !(result < new Version(1, 3)))
				{
					Harmony.CreateAndPatchAll(typeof(Update), (string)null);
				}
			}

			[HarmonyPatch(typeof(GlobalEventManager), "ProcessHitEnemy")]
			[HarmonyTranspiler]
			private static IEnumerable<CodeInstruction> ProcessHitEnemy(IEnumerable<CodeInstruction> IL)
			{
				return OnHitEnemy(IL);
			}
		}

		[CompilerGenerated]
		private sealed class <OnHitEnemy>d__4 : IEnumerable<CodeInstruction>, IEnumerable, IEnumerator<CodeInstruction>, IEnumerator, IDisposable
		{
			private int <>1__state;

			private CodeInstruction <>2__current;

			private int <>l__initialThreadId;

			private IEnumerable<CodeInstruction> IL;

			public IEnumerable<CodeInstruction> <>3__IL;

			private CodeInstruction <branch>5__2;

			private CodeInstruction <previous>5__3;

			private MethodInfo <method>5__4;

			private FieldInfo <field>5__5;

			private IEnumerator<CodeInstruction> <>7__wrap5;

			private CodeInstruction <instruction>5__7;

			CodeInstruction IEnumerator<CodeInstruction>.Current
			{
				[DebuggerHidden]
				get
				{
					return <>2__current;
				}
			}

			object IEnumerator.Current
			{
				[DebuggerHidden]
				get
				{
					return <>2__current;
				}
			}

			[DebuggerHidden]
			public <OnHitEnemy>d__4(int <>1__state)
			{
				this.<>1__state = <>1__state;
				<>l__initialThreadId = Environment.CurrentManagedThreadId;
			}

			[DebuggerHidden]
			void IDisposable.Dispose()
			{
				int num = <>1__state;
				if (num == -3 || (uint)(num - 1) <= 5u)
				{
					try
					{
					}
					finally
					{
						<>m__Finally1();
					}
				}
				<branch>5__2 = null;
				<previous>5__3 = null;
				<method>5__4 = null;
				<field>5__5 = null;
				<>7__wrap5 = null;
				<instruction>5__7 = null;
				<>1__state = -2;
			}

			private bool MoveNext()
			{
				//IL_016c: Unknown result type (might be due to invalid IL or missing references)
				//IL_0176: Expected O, but got Unknown
				//IL_019c: Unknown result type (might be due to invalid IL or missing references)
				//IL_01a6: Expected O, but got Unknown
				//IL_01c3: Unknown result type (might be due to invalid IL or missing references)
				//IL_01cd: Expected O, but got Unknown
				//IL_01ea: Unknown result type (might be due to invalid IL or missing references)
				//IL_01f4: Expected O, but got Unknown
				//IL_0132: Unknown result type (might be due to invalid IL or missing references)
				//IL_013c: Expected O, but got Unknown
				try
				{
					switch (<>1__state)
					{
					default:
						return false;
					case 0:
						<>1__state = -1;
						<branch>5__2 = null;
						<previous>5__3 = null;
						<method>5__4 = null;
						<field>5__5 = typeof(Buffs).GetField("ElementalRingVoidReady", AccessTools.all);
						<>7__wrap5 = IL.GetEnumerator();
						<>1__state = -3;
						goto IL_0287;
					case 1:
						<>1__state = -3;
						<>2__current = new CodeInstruction(OpCodes.Ldfld, (object)typeof(DamageInfo).GetField("damage"));
						<>1__state = 2;
						return true;
					case 2:
						<>1__state = -3;
						<>2__current = new CodeInstruction(OpCodes.Ldc_R4, (object)0.5f);
						<>1__state = 3;
						return true;
					case 3:
						<>1__state = -3;
						<>2__current = new CodeInstruction(OpCodes.Mul, (object)null);
						<>1__state = 4;
						return true;
					case 4:
						<>1__state = -3;
						<>2__current = new CodeInstruction(OpCodes.Sub, (object)null);
						<>1__state = 5;
						return true;
					case 5:
						<>1__state = -3;
						<method>5__4 = null;
						goto IL_0255;
					case 6:
						{
							<>1__state = -3;
							<instruction>5__7 = null;
							goto IL_0287;
						}
						IL_0287:
						if (<>7__wrap5.MoveNext())
						{
							<instruction>5__7 = <>7__wrap5.Current;
							if (<instruction>5__7.opcode == OpCodes.Br)
							{
								<branch>5__2 = <instruction>5__7;
							}
							else if (CodeInstructionExtensions.LoadsField(<instruction>5__7, <field>5__5, false))
							{
								<branch>5__2.opcode = OpCodes.Nop;
								<method>5__4 = typeof(Util).GetMethod("OnHitProcDamage", AccessTools.all);
							}
							else if ((object)<method>5__4 != null)
							{
								if (CodeInstructionExtensions.Calls(<previous>5__3, <method>5__4))
								{
									<>2__current = new CodeInstruction(OpCodes.Ldarg_1, (object)null);
									<>1__state = 1;
									return true;
								}
								if (<instruction>5__7.opcode == OpCodes.Ble && CodeInstructionExtensions.LoadsConstant(<previous>5__3, 20.0))
								{
									<previous>5__3.operand = 10f;
								}
							}
							goto IL_0255;
						}
						<>m__Finally1();
						<>7__wrap5 = null;
						return false;
						IL_0255:
						<previous>5__3 = <instruction>5__7;
						<>2__current = <instruction>5__7;
						<>1__state = 6;
						return true;
					}
				}
				catch
				{
					//try-fault
					((IDisposable)this).Dispose();
					throw;
				}
			}

			bool IEnumerator.MoveNext()
			{
				//ILSpy generated this explicit interface implementation from .override directive in MoveNext
				return this.MoveNext();
			}

			private void <>m__Finally1()
			{
				<>1__state = -1;
				if (<>7__wrap5 != null)
				{
					<>7__wrap5.Dispose();
				}
			}

			[DebuggerHidden]
			void IEnumerator.Reset()
			{
				throw new NotSupportedException();
			}

			[DebuggerHidden]
			IEnumerator<CodeInstruction> IEnumerable<CodeInstruction>.GetEnumerator()
			{
				<OnHitEnemy>d__4 <OnHitEnemy>d__;
				if (<>1__state == -2 && <>l__initialThreadId == Environment.CurrentManagedThreadId)
				{
					<>1__state = 0;
					<OnHitEnemy>d__ = this;
				}
				else
				{
					<OnHitEnemy>d__ = new <OnHitEnemy>d__4(0);
				}
				<OnHitEnemy>d__.IL = <>3__IL;
				return <OnHitEnemy>d__;
			}

			[DebuggerHidden]
			IEnumerator IEnumerable.GetEnumerator()
			{
				return ((IEnumerable<CodeInstruction>)this).GetEnumerator();
			}
		}

		public const string version = "0.1.2";

		public const string identifier = "prototype.item.singularity";

		protected async void Awake()
		{
			RoR2Application.onLoad = (Action)Delegate.Combine(RoR2Application.onLoad, new Action(Update.Apply));
			Harmony.CreateAndPatchAll(((object)this).GetType(), (string)null);
			ProjectileFuse component = (await Addressables.LoadAssetAsync<GameObject>((object)"RoR2/DLC1/ElementalRingVoid/ElementalRingVoidBlackHole.prefab").Task).GetComponent<ProjectileFuse>();
			component.fuse *= 0.5f;
		}

		[HarmonyPatch(typeof(ItemCatalog), "SetItemRelationships")]
		[HarmonyPostfix]
		private static void SetItemRelationships()
		{
			Pair[] array = ItemCatalog.itemRelationships[ItemRelationshipTypes.ContagiousItem];
			ItemDef elementalRingVoid = Items.ElementalRingVoid;
			for (int i = 0; i < array.Length; i++)
			{
				if ((Object)(object)array[i].itemDef2 == (Object)(object)elementalRingVoid)
				{
					array[i].itemDef1 = Items.IceRing;
				}
			}
			Language english = Language.english;
			string oldValue = " and " + english.GetLocalizedStringByToken(Items.FireRing.nameToken).Split().First();
			string[] array2 = new string[2] { elementalRingVoid.pickupToken, elementalRingVoid.descriptionToken };
			foreach (string text in array2)
			{
				english.SetStringByToken(text, english.GetLocalizedStringByToken(text).Replace(oldValue, ""));
			}
			oldValue = english.GetLocalizedStringByToken(elementalRingVoid.descriptionToken);
			oldValue = oldValue.Replace("20</style> seconds", "10</style> seconds");
			oldValue = oldValue.Replace("100%</style>", "50%</style>");
			oldValue = oldValue.Replace("5</style> seconds", "2.5</style> seconds");
			english.SetStringByToken(elementalRingVoid.descriptionToken, oldValue);
		}

		[IteratorStateMachine(typeof(<OnHitEnemy>d__4))]
		[HarmonyPatch(typeof(GlobalEventManager), "OnHitEnemy")]
		[HarmonyTranspiler]
		private static IEnumerable<CodeInstruction> OnHitEnemy(IEnumerable<CodeInstruction> IL)
		{
			//yield-return decompiler failed: Unexpected instruction in Iterator.Dispose()
			return new <OnHitEnemy>d__4(-2)
			{
				<>3__IL = IL
			};
		}
	}
}