Created Core module

module/Core/src/Service/VisitsTrackerInterface.php

@@ -0,0 +1,24 @@
+<?php
+namespace Shlinkio\Shlink\Core\Service;
+
+use Shlinkio\Shlink\Core\Entity\Visit;
+use Zend\Paginator\Paginator;
+
+interface VisitsTrackerInterface
+{
+    /**
+     * Tracks a new visit to provided short code, using an array of data to look up information
+     *
+     * @param string $shortCode
+     * @param array $visitorData Defaults to global $_SERVER
+     */
+    public function track($shortCode, array $visitorData = null);
+
+    /**
+     * Returns the visits on certain shortcode
+     *
+     * @param $shortCode
+     * @return Paginator|Visit[]
+     */
+    public function info($shortCode);
+}