fix: use currency value provided by api response for the calendar

public/typo3conf/ext/ep_products/Classes/Controller/AjaxCalendarController.php

@@ -111,6 +111,7 @@ class AjaxCalendarController extends ActionController
                             'pricePerNight' => $item['pricePerNight'] ?? null,
                             'defaultPricePerNight' => $item['defaultPricePerNight'] ?? null,
                             'type' => $item['type'] ?? null,
+                            'currency' => $item['currency'] ?? null,
                             'includedPax' => $item['includedPax'] ?? null,
                             'minNights' => (int)($item['minNights'] ?? 0),
                         ];
@@ -253,11 +254,12 @@ class AjaxCalendarController extends ActionController
     private function buildPriceTooltip(array $item): string
     {
         $price = $item['pricePerNight'] ?? null;
+        $currency = $this->getCurrencySymbol($item['currency'] ?? null);
 
         if ($price !== null) {
             $priceStr = (($item['type'] ?? null) === 'discount')
-                ? $price . ' € (Angebot)'
+                ? $price . ' ' . $currency
-                : 'ab ' . $price . ' €';
+                : 'ab ' . $price . ' ' . $currency;
         } else {
             $priceStr = 'Anfrage';
         }
@@ -269,6 +271,15 @@ class AjaxCalendarController extends ActionController
             : $priceStr;
     }
 
+    private function getCurrencySymbol(?string $currency): string
+    {
+        if (null === $currency || '' === $currency) {
+            return '€';
+        }
+
+        return 'EUR' === $currency ? '€' : $currency;
+    }
+
     /**
      * @return array<int, array<string, mixed>>
      */