private static bool ValidateDate()

in SDKV4-Samples/dotnet_core/PromptUsersForInput/CustomPromptBot.cs [218:261]
33 lines of code
8 McCabe index (conditional complexity)

        private static bool ValidateDate(string input, out string date, out string message)
        {
            date = null;
            message = null;

            // Try to recognize the input as a date-time. This works for responses such as "11/14/2018", "9pm", "tomorrow", "Sunday at 5pm", and so on.
            // The recognizer returns a list of potential recognition results, if any.
            try
            {
                List<ModelResult> results = DateTimeRecognizer.RecognizeDateTime(input, Culture.English);

                // Check whether any of the recognized date-times are appropriate,
                // and if so, return the first appropriate date-time. We're checking for a value at least an hour in the future.
                DateTime earliest = DateTime.Now.AddHours(1.0);
                foreach (ModelResult result in results)
                {
                    // The result resolution is a dictionary, where the "values" entry contains the processed input.
                    List<Dictionary<string, string>> resolutions = result.Resolution["values"] as List<Dictionary<string, string>>;
                    foreach (Dictionary<string, string> resolution in resolutions)
                    {
                        // The processed input contains a "value" entry if it is a date-time value, or "start" and
                        // "end" entries if it is a date-time range.
                        if (resolution.TryGetValue("value", out string dateString)
                            || resolution.TryGetValue("start", out dateString))
                        {
                            if (DateTime.TryParse(dateString, out DateTime candidate)
                                && earliest < candidate)
                            {
                                date = candidate.ToShortDateString();
                                return true;
                            }
                        }
                    }
                }

                message = "I'm sorry, please enter a date at least an hour out.";
            }
            catch
            {
                message = "I'm sorry, I could not interpret that as an appropriate date. Please enter a date at least an hour out.";
            }

            return false;
        }