using System;
using Avalonia.Media;
using Avalonia.Platform;
using Avalonia.Rendering.Composition;
using SkiaSharp;
using SkiaSharp.SceneGraph;
using SkiaSharp.Skottie;

namespace Avalonia.Skia.Lottie;

internal class LottieCompositionCustomVisualHandler : CompositionCustomVisualHandler
{
	private TimeSpan _primaryTimeElapsed;

	private TimeSpan _animationElapsed;

	private TimeSpan? _lastServerTime;

	private bool _running;

	private Animation? _animation;

	private Stretch? _stretch;

	private StretchDirection? _stretchDirection;

	private InvalidationController? _ic;

	private readonly object _sync = new object();

	private int _repeatCount;

	private int _count;

	public override void OnMessage(object message)
	{
		//IL_00b2: Unknown result type (might be due to invalid IL or missing references)
		//IL_00b7: Unknown result type (might be due to invalid IL or missing references)
		//IL_0058: Unknown result type (might be due to invalid IL or missing references)
		//IL_005d: Unknown result type (might be due to invalid IL or missing references)
		//IL_00cf: Unknown result type (might be due to invalid IL or missing references)
		//IL_00d4: Unknown result type (might be due to invalid IL or missing references)
		//IL_0075: Unknown result type (might be due to invalid IL or missing references)
		//IL_007a: Unknown result type (might be due to invalid IL or missing references)
		//IL_012a: Unknown result type (might be due to invalid IL or missing references)
		//IL_012b: Unknown result type (might be due to invalid IL or missing references)
		//IL_012d: Unknown result type (might be due to invalid IL or missing references)
		//IL_012e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0131: Unknown result type (might be due to invalid IL or missing references)
		//IL_013e: Unknown result type (might be due to invalid IL or missing references)
		//IL_00eb: Unknown result type (might be due to invalid IL or missing references)
		//IL_00f7: Unknown result type (might be due to invalid IL or missing references)
		if (!(message is LottiePayload lottiePayload))
		{
			return;
		}
		switch (lottiePayload.LottieCommand)
		{
		case LottieCommand.Start:
		{
			Animation animation = lottiePayload.Animation;
			if (animation == null)
			{
				break;
			}
			Stretch? stretch = lottiePayload.Stretch;
			if (!stretch.HasValue)
			{
				break;
			}
			Stretch valueOrDefault = stretch.GetValueOrDefault();
			StretchDirection? stretchDirection = lottiePayload.StretchDirection;
			if (stretchDirection.HasValue)
			{
				StretchDirection valueOrDefault2 = stretchDirection.GetValueOrDefault();
				int? repeatCount = lottiePayload.RepeatCount;
				if (repeatCount.HasValue)
				{
					int valueOrDefault3 = repeatCount.GetValueOrDefault();
					_running = true;
					_lastServerTime = null;
					_stretch = valueOrDefault;
					_stretchDirection = valueOrDefault2;
					_animation = animation;
					_repeatCount = valueOrDefault3;
					_count = 0;
					_animationElapsed = TimeSpan.Zero;
					((CompositionCustomVisualHandler)this).RegisterForNextAnimationFrameUpdate();
				}
			}
			break;
		}
		case LottieCommand.Update:
		{
			Stretch? stretch = lottiePayload.Stretch;
			if (stretch.HasValue)
			{
				Stretch valueOrDefault = stretch.GetValueOrDefault();
				StretchDirection? stretchDirection = lottiePayload.StretchDirection;
				if (stretchDirection.HasValue)
				{
					StretchDirection valueOrDefault2 = stretchDirection.GetValueOrDefault();
					Stretch value = valueOrDefault;
					StretchDirection value2 = valueOrDefault2;
					_stretch = value;
					_stretchDirection = value2;
					((CompositionCustomVisualHandler)this).RegisterForNextAnimationFrameUpdate();
				}
			}
			break;
		}
		case LottieCommand.Stop:
			_running = false;
			_animationElapsed = TimeSpan.Zero;
			_count = 0;
			break;
		case LottieCommand.Dispose:
			DisposeImpl();
			break;
		}
	}

	public override void OnAnimationFrameUpdate()
	{
		if (_running)
		{
			if (_repeatCount == 0 || (_repeatCount > 0 && _count >= _repeatCount))
			{
				_running = false;
				_animationElapsed = TimeSpan.Zero;
			}
			((CompositionCustomVisualHandler)this).Invalidate();
			((CompositionCustomVisualHandler)this).RegisterForNextAnimationFrameUpdate();
		}
	}

	private void DisposeImpl()
	{
		lock (_sync)
		{
			Animation? animation = _animation;
			if (animation != null)
			{
				((SKNativeObject)animation).Dispose();
			}
			_animation = null;
			InvalidationController? ic = _ic;
			if (ic != null)
			{
				ic.End();
			}
			InvalidationController? ic2 = _ic;
			if (ic2 != null)
			{
				((SKNativeObject)ic2).Dispose();
			}
			_ic = null;
		}
	}

	private double GetFrameTime()
	{
		if (_animation == null)
		{
			return 0.0;
		}
		double totalSeconds = _animationElapsed.TotalSeconds;
		if (_animationElapsed.TotalSeconds > _animation.Duration.TotalSeconds)
		{
			_animationElapsed = TimeSpan.Zero;
			InvalidationController? ic = _ic;
			if (ic != null)
			{
				ic.End();
			}
			InvalidationController? ic2 = _ic;
			if (ic2 != null)
			{
				ic2.Begin();
			}
			_count++;
		}
		return totalSeconds;
	}

	private void Draw(SKCanvas canvas)
	{
		//IL_0014: Unknown result type (might be due to invalid IL or missing references)
		//IL_001e: Expected O, but got Unknown
		//IL_0067: Unknown result type (might be due to invalid IL or missing references)
		//IL_006c: Unknown result type (might be due to invalid IL or missing references)
		//IL_0076: Unknown result type (might be due to invalid IL or missing references)
		//IL_007b: Unknown result type (might be due to invalid IL or missing references)
		//IL_009a: Unknown result type (might be due to invalid IL or missing references)
		Animation animation = _animation;
		if (animation == null)
		{
			return;
		}
		if (_ic == null)
		{
			_ic = new InvalidationController();
			_ic.Begin();
		}
		InvalidationController ic = _ic;
		if (_repeatCount != 0)
		{
			double num = GetFrameTime();
			if (!_running)
			{
				num = (float)animation.Duration.TotalSeconds;
			}
			SKSize size = animation.Size;
			float width = ((SKSize)(ref size)).Width;
			size = animation.Size;
			SKRect val = default(SKRect);
			((SKRect)(ref val))._002Ector(0f, 0f, width, ((SKSize)(ref size)).Height);
			animation.SeekFrameTime(num, ic);
			canvas.Save();
			animation.Render(canvas, val);
			canvas.Restore();
			ic.Reset();
		}
	}

	public unsafe override void OnRender(ImmediateDrawingContext context)
	{
		//IL_0092: Unknown result type (might be due to invalid IL or missing references)
		//IL_0097: Unknown result type (might be due to invalid IL or missing references)
		//IL_00ab: Unknown result type (might be due to invalid IL or missing references)
		//IL_00b0: Unknown result type (might be due to invalid IL or missing references)
		//IL_00cb: Unknown result type (might be due to invalid IL or missing references)
		//IL_00d0: Unknown result type (might be due to invalid IL or missing references)
		//IL_00d6: Unknown result type (might be due to invalid IL or missing references)
		//IL_00e3: Unknown result type (might be due to invalid IL or missing references)
		//IL_00e8: Unknown result type (might be due to invalid IL or missing references)
		//IL_00f3: Unknown result type (might be due to invalid IL or missing references)
		//IL_00f8: Unknown result type (might be due to invalid IL or missing references)
		//IL_0130: Unknown result type (might be due to invalid IL or missing references)
		//IL_0133: Unknown result type (might be due to invalid IL or missing references)
		//IL_0138: Unknown result type (might be due to invalid IL or missing references)
		//IL_013a: Unknown result type (might be due to invalid IL or missing references)
		//IL_013c: Unknown result type (might be due to invalid IL or missing references)
		//IL_0141: Unknown result type (might be due to invalid IL or missing references)
		//IL_0143: Unknown result type (might be due to invalid IL or missing references)
		//IL_0145: Unknown result type (might be due to invalid IL or missing references)
		//IL_0147: Unknown result type (might be due to invalid IL or missing references)
		//IL_014c: Unknown result type (might be due to invalid IL or missing references)
		//IL_0150: Unknown result type (might be due to invalid IL or missing references)
		//IL_0152: Unknown result type (might be due to invalid IL or missing references)
		//IL_0157: Unknown result type (might be due to invalid IL or missing references)
		//IL_015c: Unknown result type (might be due to invalid IL or missing references)
		//IL_0160: Unknown result type (might be due to invalid IL or missing references)
		//IL_0162: Unknown result type (might be due to invalid IL or missing references)
		//IL_0167: Unknown result type (might be due to invalid IL or missing references)
		//IL_0169: Unknown result type (might be due to invalid IL or missing references)
		//IL_016b: Unknown result type (might be due to invalid IL or missing references)
		//IL_0170: Unknown result type (might be due to invalid IL or missing references)
		//IL_0176: Unknown result type (might be due to invalid IL or missing references)
		//IL_017b: Unknown result type (might be due to invalid IL or missing references)
		//IL_017d: Unknown result type (might be due to invalid IL or missing references)
		//IL_0182: Unknown result type (might be due to invalid IL or missing references)
		//IL_0187: Unknown result type (might be due to invalid IL or missing references)
		//IL_018c: Unknown result type (might be due to invalid IL or missing references)
		//IL_0190: Unknown result type (might be due to invalid IL or missing references)
		//IL_0196: Unknown result type (might be due to invalid IL or missing references)
		//IL_0199: Unknown result type (might be due to invalid IL or missing references)
		//IL_019e: Unknown result type (might be due to invalid IL or missing references)
		//IL_01a3: Unknown result type (might be due to invalid IL or missing references)
		//IL_01c3: Unknown result type (might be due to invalid IL or missing references)
		//IL_01c8: Unknown result type (might be due to invalid IL or missing references)
		//IL_01fc: Unknown result type (might be due to invalid IL or missing references)
		//IL_0201: Unknown result type (might be due to invalid IL or missing references)
		//IL_0204: Unknown result type (might be due to invalid IL or missing references)
		//IL_0206: Unknown result type (might be due to invalid IL or missing references)
		//IL_020b: Unknown result type (might be due to invalid IL or missing references)
		//IL_020e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0210: Unknown result type (might be due to invalid IL or missing references)
		//IL_0212: Unknown result type (might be due to invalid IL or missing references)
		//IL_0217: Unknown result type (might be due to invalid IL or missing references)
		//IL_021c: Unknown result type (might be due to invalid IL or missing references)
		lock (_sync)
		{
			if (_running)
			{
				if (_lastServerTime.HasValue)
				{
					TimeSpan timeSpan = ((CompositionCustomVisualHandler)this).CompositionNow - _lastServerTime.Value;
					_primaryTimeElapsed += timeSpan;
					_animationElapsed += timeSpan;
				}
				_lastServerTime = ((CompositionCustomVisualHandler)this).CompositionNow;
			}
			Animation animation = _animation;
			if (animation == null)
			{
				return;
			}
			Stretch? stretch = _stretch;
			if (!stretch.HasValue)
			{
				return;
			}
			Stretch valueOrDefault = stretch.GetValueOrDefault();
			StretchDirection? stretchDirection = _stretchDirection;
			if (!stretchDirection.HasValue)
			{
				return;
			}
			StretchDirection valueOrDefault2 = stretchDirection.GetValueOrDefault();
			ISkiaSharpApiLeaseFeature val = OptionalFeatureProviderExtensions.TryGetFeature<ISkiaSharpApiLeaseFeature>((IOptionalFeatureProvider)(object)context);
			if (val == null)
			{
				return;
			}
			Rect renderBounds = ((CompositionCustomVisualHandler)this).GetRenderBounds();
			Rect val2 = default(Rect);
			((Rect)(ref val2))._002Ector(((Rect)(ref renderBounds)).Size);
			SKSize size = animation.Size;
			double num = ((SKSize)(ref size)).Width;
			size = animation.Size;
			Size val3 = default(Size);
			((Size)(ref val3))._002Ector(num, (double)((SKSize)(ref size)).Height);
			if (((Size)(ref val3)).Width <= 0.0 || ((Size)(ref val3)).Height <= 0.0)
			{
				return;
			}
			Vector val4 = MediaExtensions.CalculateScaling(valueOrDefault, ((Rect)(ref renderBounds)).Size, val3, valueOrDefault2);
			Size val5 = val3 * val4;
			Rect val6 = ((Rect)(ref val2)).CenterRect(new Rect(val5));
			Rect val7 = ((Rect)(ref val6)).Intersect(val2);
			val6 = new Rect(val3);
			Rect val8 = ((Rect)(ref val6)).CenterRect(new Rect(((Rect)(ref val7)).Size / val4));
			SKRect val9 = SKRect.Create(default(SKPoint), animation.Size);
			Matrix val10 = Matrix.CreateScale(((Rect)(ref val7)).Width / ((Rect)(ref val8)).Width, ((Rect)(ref val7)).Height / ((Rect)(ref val8)).Height);
			Matrix val11 = Matrix.CreateTranslation(0.0 - ((Rect)(ref val8)).X + ((Rect)(ref val7)).X - (double)((SKRect)(ref val9)).Top, 0.0 - ((Rect)(ref val8)).Y + ((Rect)(ref val7)).Y - (double)((SKRect)(ref val9)).Left);
			PushedState val12 = context.PushClip(val7);
			try
			{
				PushedState val13 = context.PushPostTransform(val11 * val10);
				try
				{
					ISkiaSharpApiLease val14 = val.Lease();
					try
					{
						SKCanvas val15 = ((val14 != null) ? val14.SkCanvas : null);
						if (val15 != null)
						{
							Draw(val15);
						}
					}
					finally
					{
						((IDisposable)val14)?.Dispose();
					}
				}
				finally
				{
					((IDisposable)(*(PushedState*)(&val13))/*cast due to .constrained prefix*/).Dispose();
				}
			}
			finally
			{
				((IDisposable)(*(PushedState*)(&val12))/*cast due to .constrained prefix*/).Dispose();
			}
		}
	}
}