// 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 Microsoft.CodeAnalysis.LanguageServer;
 
namespace Microsoft.CodeAnalysis.ExternalAccess.Razor;
 
internal static class SolutionExtensions
{
    public static int GetWorkspaceVersion(this Solution solution)
        => solution.SolutionStateContentVersion;
 
    public static RazorGeneratedDocumentIdentity GetIdentityOfGeneratedDocument(this Solution solution, Uri generatedDocumentUri)
    {
        Contract.ThrowIfFalse(ProtocolConversions.IsSourceGeneratedScheme(generatedDocumentUri.Scheme), "This method should only be called with a source generated Uri");
 
        if (SourceGeneratedDocumentUri.DeserializeIdentity(solution, generatedDocumentUri) is not { } identity)
        {
            throw new InvalidOperationException($"Could not deserialize Uri into a source generated Uri: {generatedDocumentUri}");
        }
 
        // Razor only cares about documents from its own generator, but it's better to just send them back the info they
        // need to check on their side, so we can avoid dual insertions if anything changes.
        return RazorGeneratedDocumentIdentity.Create(identity);
    }
}