// 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.Composition;
using Microsoft.CodeAnalysis.Host;
using Microsoft.CodeAnalysis.Host.Mef;

namespace Microsoft.CodeAnalysis;

/// <summary>
/// Can be acquired from <see cref="Solution.Services"/>, with <see cref="SolutionServices.GetService{ISupportedChangesService}"/>.
/// </summary>
public interface ISupportedChangesService : IWorkspaceService
{
    /// <inheritdoc cref="Workspace.CanApplyChange"/>
    bool CanApplyChange(ApplyChangesKind kind);

    /// <inheritdoc cref="Workspace.CanApplyCompilationOptionChange"/>
    bool CanApplyCompilationOptionChange(CompilationOptions oldOptions, CompilationOptions newOptions, Project project);

    /// <inheritdoc cref="Workspace.CanApplyParseOptionChange"/>
    bool CanApplyParseOptionChange(ParseOptions oldOptions, ParseOptions newOptions, Project project);
}

[ExportWorkspaceServiceFactory(typeof(ISupportedChangesService)), Shared]
internal sealed class DefaultSupportedChangesServiceFactory : IWorkspaceServiceFactory
{
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public DefaultSupportedChangesServiceFactory()
    {
    }

    public IWorkspaceService CreateService(HostWorkspaceServices workspaceServices)
        => new DefaultSupportedChangesService(workspaceServices.Workspace);

    private sealed class DefaultSupportedChangesService(Workspace workspace) : ISupportedChangesService
    {
        public bool CanApplyChange(ApplyChangesKind kind)
            => workspace.CanApplyChange(kind);

        public bool CanApplyCompilationOptionChange(CompilationOptions oldOptions, CompilationOptions newOptions, Project project)
            => workspace.CanApplyCompilationOptionChange(oldOptions, newOptions, project);

        public bool CanApplyParseOptionChange(ParseOptions oldOptions, ParseOptions newOptions, Project project)
            => workspace.CanApplyParseOptionChange(oldOptions, newOptions, project);
    }
}