1 files changed, 77 insertions, 0 deletions
diff --git a/core/Changes/UserChanges.php b/core/Changes/UserChanges.php
new file mode 100644
index 0000000000..5e971c776d
--- /dev/null
+++ b/core/Changes/UserChanges.php
@@ -0,0 +1,77 @@
+<?php
+/**
+ * Matomo - free/libre analytics platform
+ *
+ * @link https://matomo.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+namespace Piwik\Changes;
+
+use Piwik\Db;
+use Piwik\Changes\Model as ChangesModel;
+use Piwik\Plugins\UsersManager\Model as UsersModel;
+
+/**
+ * CoreHome user changes class
+ */
+class UserChanges
+{
+
+    /**
+     * @var Db\AdapterInterface
+     */
+    private $db;
+    private $user;
+
+    /**
+     * @param array $user
+     * @param Db\AdapterInterface|null $db
+     */
+    public function __construct(array $user, ?Db\AdapterInterface $db = null)
+    {
+        $this->db = ($db ?? Db::get());
+        $this->user = $user;
+    }
+
+    /**
+     * Return a value indicating if there are any changes available to show the user
+     *
+     * @return int   Changes\Model::NO_CHANGES_EXIST, Changes\Model::CHANGES_EXIST or Changes\Model::NEW_CHANGES_EXIST
+     * @throws \Exception
+     */
+    public function getNewChangesStatus(): int
+    {
+        $idchangeLastViewed = (isset($this->user['idchange_last_viewed']) ? $this->user['idchange_last_viewed'] : null);
+
+        $changesModel = new ChangesModel($this->db);
+        return $changesModel->doChangesExist($idchangeLastViewed);
+    }
+
+    /**
+     * Return an array of changes and update the user's changes last viewed value
+     *
+     * @return array
+     */
+    public function getChanges(): array
+    {
+        $changesModel = new ChangesModel(Db::get());
+        $changes = $changesModel->getChangeItems();
+
+        // Record the time that changes were viewed for the current user
+        $maxId = null;
+        foreach ($changes as $k => $change) {
+            if ($maxId < $change['idchange']) {
+                $maxId = $change['idchange'];
+            }
+        }
+
+        if ($maxId) {
+            $usersModel = new UsersModel();
+            $usersModel->updateUserFields($this->user['login'], ['idchange_last_viewed' => $maxId]);
+        }
+
+        return $changes;
+    }
+
+}