// 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.Generic;
using System.ComponentModel.Composition;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Host.Mef;
 
namespace Microsoft.VisualStudio.LanguageServices.LiveShare.Client.Razor;
 
[Export]
internal sealed class CSharpLspRazorProjectFactory
{
    private readonly RemoteLanguageServiceWorkspaceHost _remoteLanguageServiceWorkspaceHost;
    private readonly Dictionary<string, ProjectId> _projects = [];
 
    public ProjectId GetProject(string projectName)
    {
        if (_projects.TryGetValue(projectName, out var projectId))
        {
            return projectId;
        }
 
        var projectInfo = ProjectInfo.Create(ProjectId.CreateNewId(projectName), VersionStamp.Default, projectName, projectName, LanguageNames.CSharp);
 
        _remoteLanguageServiceWorkspaceHost.Workspace.OnProjectAdded(projectInfo);
 
        _projects.Add(projectName, projectInfo.Id);
 
        return projectInfo.Id;
    }
 
    public CodeAnalysis.Workspace Workspace => _remoteLanguageServiceWorkspaceHost.Workspace;
 
    [ImportingConstructor]
    [Obsolete(MefConstruction.ImportingConstructorMessage, error: true)]
    public CSharpLspRazorProjectFactory(RemoteLanguageServiceWorkspaceHost remoteLanguageServiceWorkspaceHost)
        => _remoteLanguageServiceWorkspaceHost = remoteLanguageServiceWorkspaceHost ?? throw new ArgumentNullException(nameof(remoteLanguageServiceWorkspaceHost));
}