// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

#nullable disable

using System;
using Microsoft.AspNetCore.Razor.Language.CodeGeneration;

namespace Microsoft.AspNetCore.Razor.Language.Intermediate;

public abstract class ExtensionIntermediateNode : IntermediateNode
{
    public abstract void WriteNode(CodeTarget target, CodeRenderingContext context);

    protected static void AcceptExtensionNode<TNode>(TNode node, IntermediateNodeVisitor visitor)
        where TNode : ExtensionIntermediateNode
    {
        var typedVisitor = visitor as IExtensionIntermediateNodeVisitor<TNode>;
        if (typedVisitor == null)
        {
            visitor.VisitExtension(node);
        }
        else
        {
            typedVisitor.VisitExtension(node);
        }
    }

    protected void ReportMissingCodeTargetExtension<TDependency>(CodeRenderingContext context)
    {
        if (context == null)
        {
            throw new ArgumentNullException(nameof(context));
        }

        var documentKind = context.DocumentKind ?? string.Empty;
        context.AddDiagnostic(
            RazorDiagnosticFactory.CreateCodeTarget_UnsupportedExtension(
                documentKind,
                typeof(TDependency)));
    }
}