using CPF.Mac.ObjCRuntime;
using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;

namespace CPF.Mac.Foundation
{
	[Register("NSOrderedSet", true)]
	public class NSOrderedSet : NSObject, IEnumerable<NSObject>, IEnumerable
	{
		internal const string selSetWithArray = "orderedSetWithArray:";

		private static readonly IntPtr selCountHandle = Selector.GetHandle("count");

		private static readonly IntPtr selInitWithObject_Handle = Selector.GetHandle("initWithObject:");

		private static readonly IntPtr selInitWithArray_Handle = Selector.GetHandle("initWithArray:");

		private static readonly IntPtr selInitWithSet_Handle = Selector.GetHandle("initWithSet:");

		private static readonly IntPtr selInitWithOrderedSet_Handle = Selector.GetHandle("initWithOrderedSet:");

		private static readonly IntPtr selObjectAtIndex_Handle = Selector.GetHandle("objectAtIndex:");

		private static readonly IntPtr selArrayHandle = Selector.GetHandle("array");

		private static readonly IntPtr selIndexOfObject_Handle = Selector.GetHandle("indexOfObject:");

		private static readonly IntPtr selObjectEnumeratorHandle = Selector.GetHandle("objectEnumerator");

		private static readonly IntPtr selSetHandle = Selector.GetHandle("set");

		private static readonly IntPtr selContainsObject_Handle = Selector.GetHandle("containsObject:");

		private static readonly IntPtr selFirstObjectHandle = Selector.GetHandle("firstObject");

		private static readonly IntPtr selLastObjectHandle = Selector.GetHandle("lastObject");

		private static readonly IntPtr selIsEqualToOrderedSet_Handle = Selector.GetHandle("isEqualToOrderedSet:");

		private static readonly IntPtr selIntersectsOrderedSet_Handle = Selector.GetHandle("intersectsOrderedSet:");

		private static readonly IntPtr selIntersectsSet_Handle = Selector.GetHandle("intersectsSet:");

		private static readonly IntPtr selIsSubsetOfOrderedSet_Handle = Selector.GetHandle("isSubsetOfOrderedSet:");

		private static readonly IntPtr selIsSubsetOfSet_Handle = Selector.GetHandle("isSubsetOfSet:");

		private static readonly IntPtr selReversedOrderedSetHandle = Selector.GetHandle("reversedOrderedSet");

		private static readonly IntPtr class_ptr = Class.GetHandle("NSOrderedSet");

		public NSObject this[int idx] => GetObject(idx);

		public override IntPtr ClassHandle => class_ptr;

		public virtual int Count
		{
			[Export("count")]
			get
			{
				if (IsDirectBinding)
				{
					return Messaging.int_objc_msgSend(base.Handle, selCountHandle);
				}
				return Messaging.int_objc_msgSendSuper(base.SuperHandle, selCountHandle);
			}
		}

		public NSOrderedSet(params NSObject[] objs)
			: this(NSArray.FromNSObjects(objs))
		{
		}

		public NSOrderedSet(params object[] objs)
			: this(NSArray.FromObjects(objs))
		{
		}

		public NSOrderedSet(params string[] strings)
			: this(NSArray.FromStrings(strings))
		{
		}

		public T[] ToArray<T>() where T : NSObject
		{
			return NSArray.ArrayFromHandle<T>(_ToArray());
		}

		public static NSOrderedSet MakeNSOrderedSet<T>(T[] values) where T : NSObject
		{
			NSArray nSArray = NSArray.FromNSObjects(values);
			return (NSOrderedSet)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend_IntPtr(class_ptr, Selector.GetHandle("orderedSetWithArray:"), nSArray.Handle));
		}

		public IEnumerator<NSObject> GetEnumerator()
		{
			NSEnumerator enumerator = _GetEnumerator();
			while (true)
			{
				NSObject nSObject;
				NSObject obj = nSObject = enumerator.NextObject();
				if (nSObject != null)
				{
					yield return obj;
					continue;
				}
				break;
			}
		}

		IEnumerator IEnumerable.GetEnumerator()
		{
			NSEnumerator enumerator = _GetEnumerator();
			while (true)
			{
				NSObject nSObject;
				NSObject obj = nSObject = enumerator.NextObject();
				if (nSObject != null)
				{
					yield return obj;
					continue;
				}
				break;
			}
		}

		public static NSOrderedSet operator +(NSOrderedSet first, NSOrderedSet second)
		{
			if (first == null)
			{
				return second;
			}
			if (second == null)
			{
				return first;
			}
			NSMutableOrderedSet nSMutableOrderedSet = new NSMutableOrderedSet();
			nSMutableOrderedSet.UnionSet(second.AsSet());
			return nSMutableOrderedSet;
		}

		public static NSOrderedSet operator -(NSOrderedSet first, NSOrderedSet second)
		{
			if (first == null)
			{
				return null;
			}
			if (second == null)
			{
				return first;
			}
			NSMutableOrderedSet nSMutableOrderedSet = new NSMutableOrderedSet(first);
			nSMutableOrderedSet.MinusSet(second.AsSet());
			return nSMutableOrderedSet;
		}

		public static NSOrderedSet operator -(NSOrderedSet first, NSSet second)
		{
			if (first == null)
			{
				return null;
			}
			if (second == null)
			{
				return first;
			}
			NSMutableOrderedSet nSMutableOrderedSet = new NSMutableOrderedSet(first);
			nSMutableOrderedSet.MinusSet(second);
			return nSMutableOrderedSet;
		}

		public static bool operator ==(NSOrderedSet first, NSOrderedSet second)
		{
			return first.IsEqualToOrderedSet(second);
		}

		public static bool operator !=(NSOrderedSet first, NSOrderedSet second)
		{
			return !first.IsEqualToOrderedSet(second);
		}

		public bool Contains(object obj)
		{
			return Contains(NSObject.FromObject(obj));
		}

		[EditorBrowsable(EditorBrowsableState.Advanced)]
		[Export("init")]
		public NSOrderedSet()
			: base(NSObjectFlag.Empty)
		{
			if (IsDirectBinding)
			{
				base.Handle = Messaging.IntPtr_objc_msgSend(base.Handle, Selector.Init);
			}
			else
			{
				base.Handle = Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, Selector.Init);
			}
		}

		[EditorBrowsable(EditorBrowsableState.Advanced)]
		[Export("initWithCoder:")]
		public NSOrderedSet(NSCoder coder)
			: base(NSObjectFlag.Empty)
		{
			if (IsDirectBinding)
			{
				base.Handle = Messaging.IntPtr_objc_msgSend_IntPtr(base.Handle, Selector.InitWithCoder, coder.Handle);
			}
			else
			{
				base.Handle = Messaging.IntPtr_objc_msgSendSuper_IntPtr(base.SuperHandle, Selector.InitWithCoder, coder.Handle);
			}
		}

		[EditorBrowsable(EditorBrowsableState.Advanced)]
		public NSOrderedSet(NSObjectFlag t)
			: base(t)
		{
		}

		[EditorBrowsable(EditorBrowsableState.Advanced)]
		public NSOrderedSet(IntPtr handle)
			: base(handle)
		{
		}

		[Export("initWithObject:")]
		public NSOrderedSet(NSObject start)
			: base(NSObjectFlag.Empty)
		{
			if (start == null)
			{
				throw new ArgumentNullException("start");
			}
			if (IsDirectBinding)
			{
				base.Handle = Messaging.IntPtr_objc_msgSend_IntPtr(base.Handle, selInitWithObject_Handle, start.Handle);
			}
			else
			{
				base.Handle = Messaging.IntPtr_objc_msgSendSuper_IntPtr(base.SuperHandle, selInitWithObject_Handle, start.Handle);
			}
		}

		[Export("initWithArray:")]
		internal NSOrderedSet(NSArray array)
			: base(NSObjectFlag.Empty)
		{
			if (array == null)
			{
				throw new ArgumentNullException("array");
			}
			if (IsDirectBinding)
			{
				base.Handle = Messaging.IntPtr_objc_msgSend_IntPtr(base.Handle, selInitWithArray_Handle, array.Handle);
			}
			else
			{
				base.Handle = Messaging.IntPtr_objc_msgSendSuper_IntPtr(base.SuperHandle, selInitWithArray_Handle, array.Handle);
			}
		}

		[Export("initWithSet:")]
		public NSOrderedSet(NSSet source)
			: base(NSObjectFlag.Empty)
		{
			if (source == null)
			{
				throw new ArgumentNullException("source");
			}
			if (IsDirectBinding)
			{
				base.Handle = Messaging.IntPtr_objc_msgSend_IntPtr(base.Handle, selInitWithSet_Handle, source.Handle);
			}
			else
			{
				base.Handle = Messaging.IntPtr_objc_msgSendSuper_IntPtr(base.SuperHandle, selInitWithSet_Handle, source.Handle);
			}
		}

		[Export("initWithOrderedSet:")]
		public NSOrderedSet(NSOrderedSet source)
			: base(NSObjectFlag.Empty)
		{
			if (source == null)
			{
				throw new ArgumentNullException("source");
			}
			if (IsDirectBinding)
			{
				base.Handle = Messaging.IntPtr_objc_msgSend_IntPtr(base.Handle, selInitWithOrderedSet_Handle, source.Handle);
			}
			else
			{
				base.Handle = Messaging.IntPtr_objc_msgSendSuper_IntPtr(base.SuperHandle, selInitWithOrderedSet_Handle, source.Handle);
			}
		}

		[Export("objectAtIndex:")]
		internal virtual NSObject GetObject(int idx)
		{
			if (IsDirectBinding)
			{
				return Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend_int(base.Handle, selObjectAtIndex_Handle, idx));
			}
			return Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper_int(base.SuperHandle, selObjectAtIndex_Handle, idx));
		}

		[Export("array")]
		internal virtual IntPtr _ToArray()
		{
			if (IsDirectBinding)
			{
				return Messaging.IntPtr_objc_msgSend(base.Handle, selArrayHandle);
			}
			return Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selArrayHandle);
		}

		[Export("indexOfObject:")]
		public virtual int IndexOf(NSObject obj)
		{
			if (obj == null)
			{
				throw new ArgumentNullException("obj");
			}
			if (IsDirectBinding)
			{
				return Messaging.int_objc_msgSend_IntPtr(base.Handle, selIndexOfObject_Handle, obj.Handle);
			}
			return Messaging.int_objc_msgSendSuper_IntPtr(base.SuperHandle, selIndexOfObject_Handle, obj.Handle);
		}

		[Export("objectEnumerator")]
		internal virtual NSEnumerator _GetEnumerator()
		{
			if (IsDirectBinding)
			{
				return (NSEnumerator)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selObjectEnumeratorHandle));
			}
			return (NSEnumerator)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selObjectEnumeratorHandle));
		}

		[Export("set")]
		public virtual NSSet AsSet()
		{
			if (IsDirectBinding)
			{
				return (NSSet)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selSetHandle));
			}
			return (NSSet)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selSetHandle));
		}

		[Export("containsObject:")]
		public virtual bool Contains(NSObject obj)
		{
			if (obj == null)
			{
				throw new ArgumentNullException("obj");
			}
			if (IsDirectBinding)
			{
				return Messaging.bool_objc_msgSend_IntPtr(base.Handle, selContainsObject_Handle, obj.Handle);
			}
			return Messaging.bool_objc_msgSendSuper_IntPtr(base.SuperHandle, selContainsObject_Handle, obj.Handle);
		}

		[Export("firstObject")]
		public virtual NSObject FirstObject()
		{
			if (IsDirectBinding)
			{
				return Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selFirstObjectHandle));
			}
			return Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selFirstObjectHandle));
		}

		[Export("lastObject")]
		public virtual NSObject LastObject()
		{
			if (IsDirectBinding)
			{
				return Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selLastObjectHandle));
			}
			return Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selLastObjectHandle));
		}

		[Export("isEqualToOrderedSet:")]
		public virtual bool IsEqualToOrderedSet(NSOrderedSet other)
		{
			if (other == null)
			{
				throw new ArgumentNullException("other");
			}
			if (IsDirectBinding)
			{
				return Messaging.bool_objc_msgSend_IntPtr(base.Handle, selIsEqualToOrderedSet_Handle, other.Handle);
			}
			return Messaging.bool_objc_msgSendSuper_IntPtr(base.SuperHandle, selIsEqualToOrderedSet_Handle, other.Handle);
		}

		[Export("intersectsOrderedSet:")]
		public virtual bool Intersects(NSOrderedSet other)
		{
			if (other == null)
			{
				throw new ArgumentNullException("other");
			}
			if (IsDirectBinding)
			{
				return Messaging.bool_objc_msgSend_IntPtr(base.Handle, selIntersectsOrderedSet_Handle, other.Handle);
			}
			return Messaging.bool_objc_msgSendSuper_IntPtr(base.SuperHandle, selIntersectsOrderedSet_Handle, other.Handle);
		}

		[Export("intersectsSet:")]
		public virtual bool Intersects(NSSet other)
		{
			if (other == null)
			{
				throw new ArgumentNullException("other");
			}
			if (IsDirectBinding)
			{
				return Messaging.bool_objc_msgSend_IntPtr(base.Handle, selIntersectsSet_Handle, other.Handle);
			}
			return Messaging.bool_objc_msgSendSuper_IntPtr(base.SuperHandle, selIntersectsSet_Handle, other.Handle);
		}

		[Export("isSubsetOfOrderedSet:")]
		public virtual bool IsSubset(NSOrderedSet other)
		{
			if (other == null)
			{
				throw new ArgumentNullException("other");
			}
			if (IsDirectBinding)
			{
				return Messaging.bool_objc_msgSend_IntPtr(base.Handle, selIsSubsetOfOrderedSet_Handle, other.Handle);
			}
			return Messaging.bool_objc_msgSendSuper_IntPtr(base.SuperHandle, selIsSubsetOfOrderedSet_Handle, other.Handle);
		}

		[Export("isSubsetOfSet:")]
		public virtual bool IsSubset(NSSet other)
		{
			if (other == null)
			{
				throw new ArgumentNullException("other");
			}
			if (IsDirectBinding)
			{
				return Messaging.bool_objc_msgSend_IntPtr(base.Handle, selIsSubsetOfSet_Handle, other.Handle);
			}
			return Messaging.bool_objc_msgSendSuper_IntPtr(base.SuperHandle, selIsSubsetOfSet_Handle, other.Handle);
		}

		[Export("reversedOrderedSet")]
		public virtual NSOrderedSet GetReverseOrderedSet()
		{
			if (IsDirectBinding)
			{
				return (NSOrderedSet)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSend(base.Handle, selReversedOrderedSetHandle));
			}
			return (NSOrderedSet)Runtime.GetNSObject(Messaging.IntPtr_objc_msgSendSuper(base.SuperHandle, selReversedOrderedSetHandle));
		}
	}
}