// 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.
 
#nullable disable
 
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Build.Locator;
using Microsoft.CodeAnalysis.MSBuild;
 
namespace AnalyzerRunner
{
    public static class AnalyzerRunnerHelper
    {
        static AnalyzerRunnerHelper()
        {
            // QueryVisualStudioInstances returns Visual Studio installations on .NET Framework, and .NET Core SDK
            // installations on .NET Core. We use the one with the most recent version.
            var msBuildInstance = MSBuildLocator.QueryVisualStudioInstances().OrderByDescending(x => x.Version).First();
 
#if NETCOREAPP
            // Since we do not inherit msbuild.deps.json when referencing the SDK copy
            // of MSBuild and because the SDK no longer ships with version matched assemblies, we
            // register an assembly loader that will load assemblies from the msbuild path with
            // equal or higher version numbers than requested.
            LooseVersionAssemblyLoader.Register(msBuildInstance.MSBuildPath);
#endif
 
            MSBuildLocator.RegisterInstance(msBuildInstance);
        }
 
        public static MSBuildWorkspace CreateWorkspace()
        {
            var properties = new Dictionary<string, string>
            {
#if NETCOREAPP
                // This property ensures that XAML files will be compiled in the current AppDomain
                // rather than a separate one. Any tasks isolated in AppDomains or tasks that create
                // AppDomains will likely not work due to https://github.com/Microsoft/MSBuildLocator/issues/16.
                { "AlwaysCompileMarkupFilesInSeparateDomain", bool.FalseString },
#endif
                // Use the latest language version to force the full set of available analyzers to run on the project.
                { "LangVersion", "latest" },
            };
 
            return MSBuildWorkspace.Create(properties, AnalyzerRunnerMefHostServices.DefaultServices);
        }
    }
}