public static FindApiDiagnosticDto GetFindApiDiagnosticDto()

in tools/code/publisher/ApiDiagnostic.cs [135:178]
36 lines of code
1 McCabe index (conditional complexity)

    public static FindApiDiagnosticDto GetFindApiDiagnosticDto(IServiceProvider provider)
    {
        var serviceDirectory = provider.GetRequiredService<ManagementServiceDirectory>();
        var tryGetFileContents = provider.GetRequiredService<TryGetFileContents>();
        var configurationJson = provider.GetRequiredService<ConfigurationJson>();

        return async (name, apiName, cancellationToken) =>
        {
            var informationFile = ApiDiagnosticInformationFile.From(name, apiName, serviceDirectory);
            var contentsOption = await tryGetFileContents(informationFile.ToFileInfo(), cancellationToken);

            return from contents in contentsOption
                   let dto = contents.ToObjectFromJson<ApiDiagnosticDto>()
                   select overrideDto(dto, name, apiName);
        };

        ApiDiagnosticDto overrideDto(ApiDiagnosticDto dto, ApiDiagnosticName name, ApiName apiName)
        {
            var diagnosticSectionOption =
                // Get the apis section from the configuration json
                from apis in configurationJson.Value
                                              .TryGetJsonArrayProperty("apis")
                                              .ToOption()
                    // Get the API with the specified name
                from api in apis.PickJsonObjects()
                                .Where(api => api.TryGetStringProperty("name")
                                                 .Where(name => name.Equals(apiName.ToString(), StringComparison.OrdinalIgnoreCase))
                                                 .Any())
                                .HeadOrNone()
                    // Get the diagnostics section from the API
                from diagnostics in api.TryGetJsonArrayProperty("diagnostics")
                                       .ToOption()
                    // Get the diagnostic with the specified name
                from diagnostic in diagnostics.PickJsonObjects()
                                              .Where(diagnostic => diagnostic.TryGetStringProperty("name")
                                                                         .Where(name => name.Equals(name.ToString(), StringComparison.OrdinalIgnoreCase))
                                                                         .Any())
                                              .HeadOrNone()
                select diagnostic;

            return diagnosticSectionOption.Map(json => OverrideDtoFactory.Override(dto, json))
                                          .IfNone(dto);
        }
    }