// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.Collections.Immutable;
using System.Threading;

namespace Microsoft.CodeAnalysis.LanguageService
{
    internal interface IFileBannerFacts
    {
        ImmutableArray<SyntaxTrivia> GetFileBanner(SyntaxNode root);
        ImmutableArray<SyntaxTrivia> GetFileBanner(SyntaxToken firstToken);
        string GetBannerText(SyntaxNode? documentationCommentTriviaSyntax, int maxBannerLength, CancellationToken cancellationToken);

        ImmutableArray<SyntaxTrivia> GetLeadingBlankLines(SyntaxNode node);

        TSyntaxNode GetNodeWithoutLeadingBlankLines<TSyntaxNode>(TSyntaxNode node) where TSyntaxNode : SyntaxNode;
        TSyntaxNode GetNodeWithoutLeadingBlankLines<TSyntaxNode>(
            TSyntaxNode node, out ImmutableArray<SyntaxTrivia> strippedTrivia) where TSyntaxNode : SyntaxNode;

        ImmutableArray<SyntaxTrivia> GetLeadingBannerAndPreprocessorDirectives<TSyntaxNode>(TSyntaxNode node) where TSyntaxNode : SyntaxNode;

        TSyntaxNode GetNodeWithoutLeadingBannerAndPreprocessorDirectives<TSyntaxNode>(TSyntaxNode node) where TSyntaxNode : SyntaxNode;
        TSyntaxNode GetNodeWithoutLeadingBannerAndPreprocessorDirectives<TSyntaxNode>(TSyntaxNode node, out ImmutableArray<SyntaxTrivia> strippedTrivia) where TSyntaxNode : SyntaxNode;
    }
}
