private static GetApiDtosInPreviousCommit GetApiDtosInPreviousCommit()

in tools/code/publisher/Api.cs [454:483]

24 lines of code
1 McCabe index (conditional complexity)


    private static GetApiDtosInPreviousCommit GetApiDtosInPreviousCommit(IServiceProvider provider)
    {
        var getArtifactsInPreviousCommit = provider.GetRequiredService<GetArtifactsInPreviousCommit>();
        var serviceDirectory = provider.GetRequiredService<ManagementServiceDirectory>();
        var cache = provider.GetRequiredService<IMemoryCache>();

        var cacheKey = Guid.NewGuid().ToString();

        return () =>
            cache.GetOrCreate(cacheKey, _ => getDtos())!;

        FrozenDictionary<ApiName, Func<CancellationToken, ValueTask<Option<ApiDto>>>> getDtos() =>
            getArtifactsInPreviousCommit()
                .Choose(kvp => from apiName in tryGetNameFromInformationFile(kvp.Key)
                               select (apiName, tryGetDto(kvp.Value)))
                .ToFrozenDictionary();

        Option<ApiName> tryGetNameFromInformationFile(FileInfo file) =>
            from informationFile in ApiInformationFile.TryParse(file, serviceDirectory)
            select informationFile.Parent.Name;

        static Func<CancellationToken, ValueTask<Option<ApiDto>>> tryGetDto(Func<CancellationToken, ValueTask<Option<BinaryData>>> tryGetContents) =>
            async cancellationToken =>
            {
                var contentsOption = await tryGetContents(cancellationToken);

                return from contents in contentsOption
                       select contents.ToObjectFromJson<ApiDto>();
            };
    }