public UserResponse AskUserToChooseOrCreateNew()

in src/AWS.Deploy.CLI/ConsoleUtilities.cs [261:335]
61 lines of code
13 McCabe index (conditional complexity)

        public UserResponse<T> AskUserToChooseOrCreateNew<T>(IEnumerable<T> options, string title,  UserInputConfiguration<T> userInputConfiguration, string? defaultChoosePrompt = null, string? defaultCreateNewPrompt = null, string? defaultCreateNewLabel = null)
        {
            var optionStrings = options.Select(userInputConfiguration.DisplaySelector);
            var defaultOption = options.FirstOrDefault(userInputConfiguration.DefaultSelector);
            var defaultValue = "";
            var createNewLabel = !string.IsNullOrEmpty(defaultCreateNewLabel) ? defaultCreateNewLabel : Constants.CLI.CREATE_NEW_LABEL;
            if (defaultOption != null)
            {
                defaultValue = userInputConfiguration.DisplaySelector(defaultOption);
            }
            else
            {
                if (userInputConfiguration.CurrentValue != null && string.IsNullOrEmpty(userInputConfiguration.CurrentValue.ToString()))
                    defaultValue = Constants.CLI.EMPTY_LABEL;
                else
                    defaultValue = userInputConfiguration.CreateNew || !options.Any() ? createNewLabel : userInputConfiguration.DisplaySelector(options.First());
            }

            var displayOptionStrings = new List<string>();

            // add empty option at the top if configured
            if (userInputConfiguration.EmptyOption)
            {
                displayOptionStrings.Add(Constants.CLI.EMPTY_LABEL);
            }

            // add all the options, this can be empty list if there are no options
            // e.g. selecting a role for a service when there are no roles with a service principal
            displayOptionStrings.AddRange(optionStrings);

            // add create new option at the bottom if configured
            if (userInputConfiguration.CreateNew)
            {
                displayOptionStrings.Add(createNewLabel);
            }

            // if list contains any options, ask user to choose one
            if (displayOptionStrings.Any())
            {
                var selectedString = AskUserToChoose(displayOptionStrings, title, defaultValue, defaultChoosePrompt);

                if (selectedString == Constants.CLI.EMPTY_LABEL)
                {
                    return new UserResponse<T>
                    {
                        IsEmpty = true
                    };
                }

                if (selectedString != createNewLabel)
                {
                    var selectedOption = options.FirstOrDefault(option => userInputConfiguration.DisplaySelector(option) == selectedString);
                    return new UserResponse<T>
                    {
                        SelectedOption = selectedOption,
                        CreateNew = false
                    };
                }
            }

            if (userInputConfiguration.AskNewName)
            {
                var newName = AskUserForValue(string.Empty, userInputConfiguration.DefaultNewName, false, defaultAskValuePrompt: defaultCreateNewPrompt);
                return new UserResponse<T>
                {
                    CreateNew = true,
                    NewName = newName
                };
            }

            return new UserResponse<T>
            {
                CreateNew = true,
            };
        }