using System;
using System.Reflection;
using UnityEngine.Scripting;
using UnityEngine.Serialization;

namespace UnityEngine.Events
{
	// Token: 0x02000480 RID: 1152
	[UsedByNativeCode]
	[Serializable]
	public abstract class UnityEventBase : ISerializationCallbackReceiver
	{
		// Token: 0x060039C9 RID: 14793 RVA: 0x00064D50 File Offset: 0x00062F50
		protected UnityEventBase()
		{
			this.m_Calls = new InvokableCallList();
			this.m_PersistentCalls = new PersistentCallGroup();
			this.m_TypeName = base.GetType().AssemblyQualifiedName;
		}

		// Token: 0x060039CA RID: 14794 RVA: 0x00064D88 File Offset: 0x00062F88
		void ISerializationCallbackReceiver.OnBeforeSerialize()
		{
		}

		// Token: 0x060039CB RID: 14795 RVA: 0x00064D8C File Offset: 0x00062F8C
		void ISerializationCallbackReceiver.OnAfterDeserialize()
		{
			this.DirtyPersistentCalls();
			this.m_TypeName = base.GetType().AssemblyQualifiedName;
		}

		// Token: 0x060039CC RID: 14796
		protected abstract MethodInfo FindMethod_Impl(string name, object targetObj);

		// Token: 0x060039CD RID: 14797
		internal abstract BaseInvokableCall GetDelegate(object target, MethodInfo theFunction);

		// Token: 0x060039CE RID: 14798 RVA: 0x00064DA8 File Offset: 0x00062FA8
		internal MethodInfo FindMethod(PersistentCall call)
		{
			Type type = typeof(Object);
			if (!string.IsNullOrEmpty(call.arguments.unityObjectArgumentAssemblyTypeName))
			{
				type = Type.GetType(call.arguments.unityObjectArgumentAssemblyTypeName, false) ?? typeof(Object);
			}
			return this.FindMethod(call.methodName, call.target, call.mode, type);
		}

		// Token: 0x060039CF RID: 14799 RVA: 0x00064E1C File Offset: 0x0006301C
		internal MethodInfo FindMethod(string name, object listener, PersistentListenerMode mode, Type argumentType)
		{
			MethodInfo methodInfo;
			switch (mode)
			{
			case PersistentListenerMode.EventDefined:
				methodInfo = this.FindMethod_Impl(name, listener);
				break;
			case PersistentListenerMode.Void:
				methodInfo = UnityEventBase.GetValidMethodInfo(listener, name, new Type[0]);
				break;
			case PersistentListenerMode.Object:
				methodInfo = UnityEventBase.GetValidMethodInfo(listener, name, new Type[] { argumentType ?? typeof(Object) });
				break;
			case PersistentListenerMode.Int:
				methodInfo = UnityEventBase.GetValidMethodInfo(listener, name, new Type[] { typeof(int) });
				break;
			case PersistentListenerMode.Float:
				methodInfo = UnityEventBase.GetValidMethodInfo(listener, name, new Type[] { typeof(float) });
				break;
			case PersistentListenerMode.String:
				methodInfo = UnityEventBase.GetValidMethodInfo(listener, name, new Type[] { typeof(string) });
				break;
			case PersistentListenerMode.Bool:
				methodInfo = UnityEventBase.GetValidMethodInfo(listener, name, new Type[] { typeof(bool) });
				break;
			default:
				methodInfo = null;
				break;
			}
			return methodInfo;
		}

		// Token: 0x060039D0 RID: 14800 RVA: 0x00064F24 File Offset: 0x00063124
		public int GetPersistentEventCount()
		{
			return this.m_PersistentCalls.Count;
		}

		// Token: 0x060039D1 RID: 14801 RVA: 0x00064F44 File Offset: 0x00063144
		public Object GetPersistentTarget(int index)
		{
			PersistentCall listener = this.m_PersistentCalls.GetListener(index);
			return (listener == null) ? null : listener.target;
		}

		// Token: 0x060039D2 RID: 14802 RVA: 0x00064F78 File Offset: 0x00063178
		public string GetPersistentMethodName(int index)
		{
			PersistentCall listener = this.m_PersistentCalls.GetListener(index);
			return (listener == null) ? string.Empty : listener.methodName;
		}

		// Token: 0x060039D3 RID: 14803 RVA: 0x00064FB0 File Offset: 0x000631B0
		private void DirtyPersistentCalls()
		{
			this.m_Calls.ClearPersistent();
			this.m_CallsDirty = true;
		}

		// Token: 0x060039D4 RID: 14804 RVA: 0x00064FC8 File Offset: 0x000631C8
		private void RebuildPersistentCallsIfNeeded()
		{
			if (this.m_CallsDirty)
			{
				this.m_PersistentCalls.Initialize(this.m_Calls, this);
				this.m_CallsDirty = false;
			}
		}

		// Token: 0x060039D5 RID: 14805 RVA: 0x00064FF4 File Offset: 0x000631F4
		public void SetPersistentListenerState(int index, UnityEventCallState state)
		{
			PersistentCall listener = this.m_PersistentCalls.GetListener(index);
			if (listener != null)
			{
				listener.callState = state;
			}
			this.DirtyPersistentCalls();
		}

		// Token: 0x060039D6 RID: 14806 RVA: 0x00065024 File Offset: 0x00063224
		protected void AddListener(object targetObj, MethodInfo method)
		{
			this.m_Calls.AddListener(this.GetDelegate(targetObj, method));
		}

		// Token: 0x060039D7 RID: 14807 RVA: 0x0006503C File Offset: 0x0006323C
		internal void AddCall(BaseInvokableCall call)
		{
			this.m_Calls.AddListener(call);
		}

		// Token: 0x060039D8 RID: 14808 RVA: 0x0006504C File Offset: 0x0006324C
		protected void RemoveListener(object targetObj, MethodInfo method)
		{
			this.m_Calls.RemoveListener(targetObj, method);
		}

		// Token: 0x060039D9 RID: 14809 RVA: 0x0006505C File Offset: 0x0006325C
		public void RemoveAllListeners()
		{
			this.m_Calls.Clear();
		}

		// Token: 0x060039DA RID: 14810 RVA: 0x0006506C File Offset: 0x0006326C
		protected void Invoke(object[] parameters)
		{
			this.RebuildPersistentCallsIfNeeded();
			this.m_Calls.Invoke(parameters);
		}

		// Token: 0x060039DB RID: 14811 RVA: 0x00065084 File Offset: 0x00063284
		public override string ToString()
		{
			return base.ToString() + " " + base.GetType().FullName;
		}

		// Token: 0x060039DC RID: 14812 RVA: 0x000650B4 File Offset: 0x000632B4
		public static MethodInfo GetValidMethodInfo(object obj, string functionName, Type[] argumentTypes)
		{
			Type type = obj.GetType();
			while (type != typeof(object) && type != null)
			{
				MethodInfo method = type.GetMethod(functionName, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, argumentTypes, null);
				if (method != null)
				{
					ParameterInfo[] parameters = method.GetParameters();
					bool flag = true;
					int num = 0;
					foreach (ParameterInfo parameterInfo in parameters)
					{
						Type type2 = argumentTypes[num];
						Type parameterType = parameterInfo.ParameterType;
						flag = type2.IsPrimitive == parameterType.IsPrimitive;
						if (!flag)
						{
							break;
						}
						num++;
					}
					if (flag)
					{
						return method;
					}
				}
				type = type.BaseType;
			}
			return null;
		}

		// Token: 0x0400118E RID: 4494
		private InvokableCallList m_Calls;

		// Token: 0x0400118F RID: 4495
		[FormerlySerializedAs("m_PersistentListeners")]
		[SerializeField]
		private PersistentCallGroup m_PersistentCalls;

		// Token: 0x04001190 RID: 4496
		[SerializeField]
		private string m_TypeName;

		// Token: 0x04001191 RID: 4497
		private bool m_CallsDirty = true;
	}
}