private FeatureConditions ParseFeatureConditions()

in src/Microsoft.Extensions.Configuration.AzureAppConfiguration/FeatureManagement/FeatureManagementKeyValueAdapter.cs [520:604]
73 lines of code
19 McCabe index (conditional complexity)

        private FeatureConditions ParseFeatureConditions(ref Utf8JsonReader reader, string settingKey)
        {
            var featureConditions = new FeatureConditions();

            while (reader.Read() && reader.TokenType != JsonTokenType.EndObject)
            {
                if (reader.TokenType != JsonTokenType.PropertyName)
                {
                    continue;
                }

                string conditionsPropertyName = reader.GetString();

                switch (conditionsPropertyName)
                {
                    case FeatureManagementConstants.ClientFilters:
                        {
                            if (reader.Read() && reader.TokenType == JsonTokenType.StartArray)
                            {
                                int i = 0;

                                while (reader.Read() && reader.TokenType != JsonTokenType.EndArray)
                                {
                                    if (reader.TokenType == JsonTokenType.StartObject)
                                    {
                                        ClientFilter clientFilter = ParseClientFilter(ref reader, settingKey);

                                        if (clientFilter.Name != null ||
                                            (clientFilter.Parameters.ValueKind == JsonValueKind.Object &&
                                            clientFilter.Parameters.EnumerateObject().Any()))
                                        {
                                            featureConditions.ClientFilters.Add(clientFilter);
                                        }
                                    }
                                    else if (reader.TokenType != JsonTokenType.Null)
                                    {
                                        throw CreateFeatureFlagFormatException(
                                            $"{FeatureManagementConstants.ClientFilters}[{i}]",
                                            settingKey,
                                            reader.TokenType.ToString(),
                                            JsonTokenType.StartObject.ToString());
                                    }

                                    i++;
                                }
                            }
                            else if (reader.TokenType != JsonTokenType.Null)
                            {
                                throw CreateFeatureFlagFormatException(
                                    FeatureManagementConstants.ClientFilters,
                                    settingKey,
                                    reader.TokenType.ToString(),
                                    JsonTokenType.StartArray.ToString());
                            }

                            break;
                        }

                    case FeatureManagementConstants.RequirementType:
                        {
                            if (reader.Read() && reader.TokenType == JsonTokenType.String)
                            {
                                featureConditions.RequirementType = reader.GetString();
                            }
                            else if (reader.TokenType != JsonTokenType.Null)
                            {
                                throw CreateFeatureFlagFormatException(
                                    FeatureManagementConstants.RequirementType,
                                    settingKey,
                                    reader.TokenType.ToString(),
                                    JsonTokenType.String.ToString());
                            }

                            break;
                        }

                    default:
                        reader.Skip();

                        break;
                }
            }

            return featureConditions;
        }