Use javascript notice

[MAILPOET-2643]

lib/AdminPages/Pages/Segments.php

@@ -3,6 +3,7 @@
 namespace MailPoet\AdminPages\Pages;
 
 use MailPoet\AdminPages\PageRenderer;
+use MailPoet\Config\ServicesChecker;
 use MailPoet\Listing\PageLimit;
 use MailPoet\Models\Subscriber;
 use MailPoet\Util\License\Features\Subscribers as SubscribersFeature;
@@ -17,10 +18,19 @@ class Segments {
   /** @var SubscribersFeature */
   private $subscribersFeature;
 
-  public function __construct(PageRenderer $pageRenderer, PageLimit $listingPageLimit, SubscribersFeature $subscribersFeature) {
+  /** @var ServicesChecker */
+  private $servicesChecker;
+
+  public function __construct(
+    PageRenderer $pageRenderer,
+    PageLimit $listingPageLimit,
+    ServicesChecker $servicesChecker,
+    SubscribersFeature $subscribersFeature
+  ) {
     $this->pageRenderer = $pageRenderer;
     $this->listingPageLimit = $listingPageLimit;
     $this->subscribersFeature = $subscribersFeature;
+    $this->servicesChecker = $servicesChecker;
   }
 
   public function render() {
@@ -32,6 +42,8 @@ class Segments {
     $data['has_valid_api_key'] = $this->subscribersFeature->hasValidApiKey();
     $data['subscriber_count'] = Subscriber::getTotalSubscribers();
 
+    $data['mss_key_invalid'] = ($this->servicesChecker->isMailPoetAPIKeyValid() === false);
+
     $this->pageRenderer->displayPage('segments.html', $data);
   }
 }