using System;
using System.Collections.Generic;
using Microsoft.CodeAnalysis.Syntax.InternalSyntax;
using Roslyn.Utilities;

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class SwitchSectionSyntax : CSharpSyntaxNode
{
	internal readonly GreenNode? labels;

	internal readonly GreenNode? statements;

	public SyntaxList<SwitchLabelSyntax> Labels => new SyntaxList<SwitchLabelSyntax>(labels);

	public SyntaxList<StatementSyntax> Statements => new SyntaxList<StatementSyntax>(statements);

	internal SwitchSectionSyntax(SyntaxKind kind, GreenNode? labels, GreenNode? statements, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 2;
		if (labels != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(labels);
			this.labels = labels;
		}
		if (statements != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(statements);
			this.statements = statements;
		}
	}

	internal SwitchSectionSyntax(SyntaxKind kind, GreenNode? labels, GreenNode? statements, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 2;
		if (labels != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(labels);
			this.labels = labels;
		}
		if (statements != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(statements);
			this.statements = statements;
		}
	}

	internal SwitchSectionSyntax(SyntaxKind kind, GreenNode? labels, GreenNode? statements)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 2;
		if (labels != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(labels);
			this.labels = labels;
		}
		if (statements != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(statements);
			this.statements = statements;
		}
	}

	internal override GreenNode? GetSlot(int index)
	{
		return (GreenNode?)(index switch
		{
			0 => labels, 
			1 => statements, 
			_ => null, 
		});
	}

	internal override SyntaxNode CreateRed(SyntaxNode? parent, int position)
	{
		return (SyntaxNode)(object)new Microsoft.CodeAnalysis.CSharp.Syntax.SwitchSectionSyntax(this, parent, position);
	}

	public override void Accept(CSharpSyntaxVisitor visitor)
	{
		visitor.VisitSwitchSection(this);
	}

	public override TResult Accept<TResult>(CSharpSyntaxVisitor<TResult> visitor)
	{
		return visitor.VisitSwitchSection(this);
	}

	public SwitchSectionSyntax Update(SyntaxList<SwitchLabelSyntax> labels, SyntaxList<StatementSyntax> statements)
	{
		//IL_0000: Unknown result type (might be due to invalid IL or missing references)
		//IL_0002: Unknown result type (might be due to invalid IL or missing references)
		//IL_001c: Unknown result type (might be due to invalid IL or missing references)
		//IL_001d: Unknown result type (might be due to invalid IL or missing references)
		//IL_000e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0010: Unknown result type (might be due to invalid IL or missing references)
		if (labels != Labels || statements != Statements)
		{
			SwitchSectionSyntax switchSectionSyntax = SyntaxFactory.SwitchSection(labels, statements);
			DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
			if (diagnostics != null && diagnostics.Length != 0)
			{
				switchSectionSyntax = GreenNodeExtensions.WithDiagnosticsGreen<SwitchSectionSyntax>(switchSectionSyntax, diagnostics);
			}
			SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
			if (annotations != null && annotations.Length != 0)
			{
				switchSectionSyntax = GreenNodeExtensions.WithAnnotationsGreen<SwitchSectionSyntax>(switchSectionSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
			}
			return switchSectionSyntax;
		}
		return this;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new SwitchSectionSyntax(base.Kind, labels, statements, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new SwitchSectionSyntax(base.Kind, labels, statements, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal SwitchSectionSyntax(ObjectReader reader)
		: base(reader)
	{
		//IL_0014: Unknown result type (might be due to invalid IL or missing references)
		//IL_001a: Expected O, but got Unknown
		//IL_0031: Unknown result type (might be due to invalid IL or missing references)
		//IL_0037: Expected O, but got Unknown
		((GreenNode)this).SlotCount = 2;
		GreenNode val = (GreenNode)reader.ReadValue();
		if (val != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(val);
			labels = val;
		}
		GreenNode val2 = (GreenNode)reader.ReadValue();
		if (val2 != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(val2);
			statements = val2;
		}
	}

	internal override void WriteTo(ObjectWriter writer)
	{
		((GreenNode)this).WriteTo(writer);
		writer.WriteValue((IObjectWritable)(object)labels);
		writer.WriteValue((IObjectWritable)(object)statements);
	}

	static SwitchSectionSyntax()
	{
		ObjectBinder.RegisterTypeReader(typeof(SwitchSectionSyntax), (Func<ObjectReader, IObjectWritable>)((ObjectReader r) => (IObjectWritable)(object)new SwitchSectionSyntax(r)));
	}
}