#nullable disable
using System;
using Microsoft.Maui.Animations;
 
namespace Microsoft.Maui.Controls
{
	internal sealed class AnimatableKey
	{
		public AnimatableKey(IAnimatable animatable, string handle)
		{
			if (animatable == null)
			{
				throw new ArgumentNullException(nameof(animatable));
			}
 
			if (string.IsNullOrEmpty(handle))
			{
				throw new ArgumentException("Argument is null or empty", nameof(handle));
			}
 
			Animatable = new WeakReference<IAnimatable>(animatable);
			Handle = handle;
		}
 
		public WeakReference<IAnimatable> Animatable { get; }
 
		public string Handle { get; }
 
		public override bool Equals(object obj)
		{
 
			/* Unmerged change from project 'Controls.Core(net7.0-windows10.0.20348)'
			Before:
						if (ReferenceEquals(null, obj))
						{
							return false;
						}
						if (ReferenceEquals(this, obj))
						{
							return true;
						}
						if (obj.GetType() != GetType())
			After:
						if (obj is null)
			*/
			if (obj is null)
			{
				return false;
			}
			if (ReferenceEquals(this, obj))
			{
				return true;
			}
			if (obj.GetType() != GetType())
			{
				return false;
			}
			if (ReferenceEquals(this, obj))
			{
				return true;
			}
			if (obj.GetType() != GetType())
			{
				return false;
			}
			return Equals((AnimatableKey)obj);
		}
 
		public override int GetHashCode()
		{
			unchecked
			{
				IAnimatable target;
#if NETSTANDARD2_0
				if (!Animatable.TryGetTarget(out target))
				{
					return Handle?.GetHashCode() ?? 0;
				}
				return ((target?.GetHashCode() ?? 0) * 397) ^ (Handle?.GetHashCode() ?? 0);
#else
				if (!Animatable.TryGetTarget(out target))
				{
					return Handle?.GetHashCode(StringComparison.Ordinal) ?? 0;
				}
				return ((target?.GetHashCode() ?? 0) * 397) ^ (Handle?.GetHashCode(StringComparison.Ordinal) ?? 0);
#endif
			}
		}
 
		private bool Equals(AnimatableKey other)
		{
			if (!string.Equals(Handle, other.Handle, StringComparison.Ordinal))
			{
				return false;
			}
 
			IAnimatable thisAnimatable;
 
			if (!Animatable.TryGetTarget(out thisAnimatable))
			{
				return false;
			}
 
			IAnimatable thatAnimatable;
 
			if (!other.Animatable.TryGetTarget(out thatAnimatable))
			{
				return false;
			}
 
			return Equals(thisAnimatable, thatAnimatable);
		}
	}
}