/// <summary>
/// Prompts the user to input a binary response (true/false, yes/no, etc..).
/// </summary>
/// <param name="prompt">The prompt to provide to the user for input.</param>
/// <param name="options">Optional parameters to modify binary question.</param>
public static bool BinaryQuestion(string prompt, BinaryQuestionOptions options = null)
{
var binaryOptions = options ?? new BinaryQuestionOptions();
var answer = string.Empty;
var isPositive = false;
var isNegative = false;
var comparisonType = binaryOptions.IgnoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
do
{
answer = Prompt(binaryOptions.Formatter(prompt));
isPositive = string.Equals(answer, binaryOptions.PositiveResponse, comparisonType);
isNegative = string.Equals(answer, binaryOptions.NegativeResponse, comparisonType);
}while (binaryOptions.RepeatOnInvalid && !isPositive && !isNegative);
return(isPositive);
}
/// <summary>
/// Repeats an action until it returns true or the user declines to continue.
/// </summary>
/// <param name="action">The action to repeat.</param>
/// <param name="options">Optional parameters to modify repeat.</param>
public static async Task <bool> RepeatUntilSuccessAsync(Func <Task <bool> > action, RepeatUntilSuccessOptions options = null)
{
var success = false;
var repeatOptions = options ?? new RepeatUntilSuccessOptions();
var binaryOptions = new BinaryQuestionOptions();
binaryOptions.PositiveResponse = repeatOptions.PositiveResponse;
binaryOptions.NegativeResponse = repeatOptions.NegativeResponse;
binaryOptions.IgnoreCase = repeatOptions.IgnoreCase;
binaryOptions.RepeatOnInvalid = true;
do
{
success = await action();
}while (!success && BinaryQuestion(repeatOptions.ContinuePrompt, binaryOptions));
return(success);
}
