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

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

namespace Microsoft.AspNetCore.Razor.Language.Components
{
	internal class ComponentPageDirective
	{
		public static readonly DirectiveDescriptor Directive = DirectiveDescriptor.CreateDirective(
			"page",
			DirectiveKind.SingleLine,
			builder =>
			{
				builder.AddStringToken( ComponentResources.PageDirective_RouteToken_Name, ComponentResources.PageDirective_RouteToken_Description );
				builder.Usage = DirectiveUsage.FileScopedMultipleOccurring;
				builder.Description = ComponentResources.PageDirective_Description;
			} );

		private ComponentPageDirective( string routeTemplate, IntermediateNode directiveNode )
		{
			RouteTemplate = routeTemplate;
			DirectiveNode = directiveNode;
		}

		public string RouteTemplate { get; }

		public IntermediateNode DirectiveNode { get; }

		public static RazorProjectEngineBuilder Register( RazorProjectEngineBuilder builder )
		{
			if ( builder == null )
			{
				throw new ArgumentNullException( nameof( builder ) );
			}

			builder.AddDirective( Directive, FileKinds.Component, FileKinds.ComponentImport );
			builder.Features.Add( new ComponentPageDirectivePass() );
			return builder;
		}
	}
}
