// 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;
using Microsoft.AspNetCore.Razor.Language.Intermediate;

namespace Microsoft.AspNetCore.Razor.Language.Extensions;

public sealed class TemplateIntermediateNode : ExtensionIntermediateNode
{
    public override IntermediateNodeCollection Children { get => field ??= []; }

    public override void Accept(IntermediateNodeVisitor visitor)
    {
        if (visitor == null)
        {
            throw new ArgumentNullException(nameof(visitor));
        }

        AcceptExtensionNode<TemplateIntermediateNode>(this, visitor);
    }

    public override void WriteNode(CodeTarget target, CodeRenderingContext context)
    {
        if (target == null)
        {
            throw new ArgumentNullException(nameof(target));
        }

        if (context == null)
        {
            throw new ArgumentNullException(nameof(context));
        }

        var extension = target.GetExtension<ITemplateTargetExtension>();
        if (extension == null)
        {
            ReportMissingCodeTargetExtension<ITemplateTargetExtension>(context);
            return;
        }

        extension.WriteTemplate(context, this);
    }
}