refs #16388 [fid] fix caching of libraries in fid client

* set library list in session correctly in method requestLibraryList
* add method 'requestLibraryById' for getting single library from api

module/fid/src/Service/Client.php

@@ -488,7 +488,7 @@ class Client
      */
     public function requestLibraryList(): array
     {
-        if ($list = $this->session['libraries'][$this->locale] ?? null) {
+        if ($list = $this->session->libraries[$this->locale] ?? null) {
             return $list;
         }
 
@@ -506,10 +506,47 @@ class Client
             return $libary->getId();
         }, $list);
 
-        return $this->session['libraries'][$this->locale] = array_combine($keys,
+        if (empty($this->session->libraries)) {
+            $this->session->libraries = [];
+        }
+
+        return $this->session->libraries[$this->locale] = array_combine($keys,
             $list);
     }
 
+    /**
+     * @param $id
+     * @return Library
+     * @throws ClientException
+     */
+    public function requestLibraryById($id): Library
+    {
+        if ($library = $this->session->homeLibrary[$this->locale] ?? null) {
+            return $library;
+        }
+
+        $request = $this->buildRequest('get', "libraries/$id");
+        $response = $this->sendAuthenticatedRequest($request);
+
+        if ($response->getStatusCode() !== 200) {
+            $this->throwException($response);
+        }
+
+        /** @var Library $list */
+        $library = $this->serializer->deserialize(
+            (string)$response->getBody(), Library::class, 'json');
+
+        $phpTypeCasting = array_map(function (Library $library) {
+            return $library->getId();
+        }, [$library]);
+
+        if (empty($this->session->homeLibrary)) {
+            $this->session->homeLibrary = [];
+        }
+
+        return $this->session->homeLibrary[$this->locale] = array_combine($phpTypeCasting, [$library])[$id];
+    }
+
     /**
      * @param User  $user
      * @param array $groups