made logic for the date to far in the future message more foolproof

src/Controller/CalendarController.php

@@ -68,15 +68,19 @@ class CalendarController extends ControllerBase {
     // Determine which day has been selected by the user. If the user has entered a url that specifies a day outside of the
     // allowable reservation window, then set the current day as the selected day.
     $yyyy_mmdd = $dates[0]['yyyymmdd'];
+    $day_selected = false;
     foreach ($dates as $day) {
       if ($day['selected']) {
         $yyyy_mmdd = $day['yyyymmdd'];
+        $day_selected = TRUE;
       }
     }
     if ($yyyy_mmdd == $dates[0]['yyyymmdd']) {
       $dates[0]['selected'] = TRUE;
       $dates[0]['today'] = TRUE;
-      \Drupal::messenger()->addWarning(t('You have chosen a date to far in the '
+    }
+    if(!$day_selected) {
+       \Drupal::messenger()->addWarning(t('You have chosen a date to far in the '
         . 'future. Please choose a date within 14 days of today.  The Calendar'
         . ' view below has defaulted to todays date.'));
     }