// 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;
using System.Collections.Immutable;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis.Classification.Classifiers;
using Microsoft.CodeAnalysis.Collections;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.Text;

namespace Microsoft.CodeAnalysis.Classification;

internal interface ISyntaxClassificationService : ILanguageService
{
    ImmutableArray<ISyntaxClassifier> GetDefaultSyntaxClassifiers();

    /// <inheritdoc cref="IClassificationService.AddLexicalClassifications"/>
    void AddLexicalClassifications(SourceText text,
        TextSpan textSpan,
        SegmentedList<ClassifiedSpan> result,
        CancellationToken cancellationToken);

    /// <inheritdoc cref="IClassificationService.AddSyntacticClassificationsAsync"/>
    void AddSyntacticClassifications(
        SyntaxNode root,
        ImmutableArray<TextSpan> textSpans,
        SegmentedList<ClassifiedSpan> result,
        CancellationToken cancellationToken);

    /// <inheritdoc cref="IClassificationService.AddSemanticClassificationsAsync"/>
    Task AddSemanticClassificationsAsync(
        Document document,
        ImmutableArray<TextSpan> textSpans,
        ClassificationOptions options,
        Func<SyntaxNode, ImmutableArray<ISyntaxClassifier>> getNodeClassifiers,
        Func<SyntaxToken, ImmutableArray<ISyntaxClassifier>> getTokenClassifiers,
        SegmentedList<ClassifiedSpan> result,
        CancellationToken cancellationToken);

    /// <inheritdoc cref="AddSemanticClassificationsAsync"/>
    void AddSemanticClassifications(
        SemanticModel semanticModel,
        ImmutableArray<TextSpan> textSpans,
        Func<SyntaxNode, ImmutableArray<ISyntaxClassifier>> getNodeClassifiers,
        Func<SyntaxToken, ImmutableArray<ISyntaxClassifier>> getTokenClassifiers,
        SegmentedList<ClassifiedSpan> result,
        ClassificationOptions options,
        CancellationToken cancellationToken);

    string? GetSyntacticClassificationForIdentifier(SyntaxToken identifier);

    /// <inheritdoc cref="IClassificationService.AdjustStaleClassification"/>
    ClassifiedSpan FixClassification(SourceText text, ClassifiedSpan classifiedSpan);

    /// <inheritdoc cref="IClassificationService.ComputeSyntacticChangeRangeAsync"/>
    TextChangeRange? ComputeSyntacticChangeRange(
        SyntaxNode oldRoot, SyntaxNode newRoot, TimeSpan timeout, CancellationToken cancellationToken);
}