added a message when a user clicks to far into the future and made some string translatable

reservation.inc

@@ -70,7 +70,7 @@ function reserve_form_reserve_reservation_form_alter(array &$form, FormStateInte
         '#markup' => '
       <div class="messages__wrapper layout-container">
       <div role="contentinfo" aria-label="Warning message" class="messages messages--warning">' .
-        'You have exceeded the max number of daily bookings.  Unable to add reservation' .
+        t('You have exceeded the max number of daily bookings.  Unable to add reservation.') .
         '</div></div>',
       ];
       return;
@@ -85,7 +85,7 @@ function reserve_form_reserve_reservation_form_alter(array &$form, FormStateInte
         '#markup' => '
       <div class="messages__wrapper layout-container">
       <div role="contentinfo" aria-label="Warning message" class="messages messages--warning">' .
-        'You have exceeded your max number of open bookings.  Unable to add reservation' .
+        t('You have exceeded your max number of open bookings.  Unable to add reservation.') .
         '</div></div>',
       ];
       return;

src/Controller/CalendarController.php

@@ -43,6 +43,7 @@ class CalendarController extends ControllerBase {
     $config = \Drupal::config('reserve.settings');
     // likely no need for this as not used anywhere else; but maybe for external modules
     global $yyyy_mmdd;
+    
 
     //$entity_type = ebundle_split($ebundle, 'type');
     //$bundle = ebundle_split($ebundle, 'bundle');
@@ -75,6 +76,9 @@ class CalendarController extends ControllerBase {
     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 '
+        . 'future. Please choose a date within 14 days of today.  The Calendar'
+        . ' view below has defaulted to todays date.'));
     }
 
     // a bit hacky; but we need to store what the calendar is using for its date so we can use this in theme functions later