refactor(modules): extract castopod parts into a modules/ folder for a scalable HMVC structure

- create Admin, Analytics, Auth, Fediverse and Install modules in the root modules/ folder
- rename
ActivityPub to Fediverse

modules/Analytics/Models/AnalyticsPodcastByHourModel.php

@@ -0,0 +1,64 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Class AnalyticsPodcastByHour Model for analytics_podcasts_by_hour table in database
+ *
+ * @copyright  2020 Podlibre
+ * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
+ * @link       https://castopod.org/
+ */
+
+namespace Modules\Analytics\Models;
+
+use CodeIgniter\Model;
+use Modules\Analytics\Entities\AnalyticsPodcastsByHour;
+
+class AnalyticsPodcastByHourModel extends Model
+{
+    /**
+     * @var string
+     */
+    protected $table = 'analytics_podcasts_by_hour';
+
+    /**
+     * @var string
+     */
+    protected $returnType = AnalyticsPodcastsByHour::class;
+
+    /**
+     * @var bool
+     */
+    protected $useSoftDeletes = false;
+
+    /**
+     * @var bool
+     */
+    protected $useTimestamps = false;
+
+    /**
+     * Gets hits data for a podcast
+     *
+     * @return AnalyticsPodcastsByHour[]
+     */
+    public function getData(int $podcastId): array
+    {
+        if (! ($found = cache("{$podcastId}_analytics_podcasts_by_hour"))) {
+            $found = $this->select("right(concat('0',hour,'h'),3) as labels")
+                ->selectSum('hits', 'values')
+                ->where([
+                    'podcast_id' => $podcastId,
+                    'date >' => date('Y-m-d', strtotime('-60 days')),
+                ])
+                ->groupBy('labels')
+                ->orderBy('labels', 'ASC')
+                ->findAll();
+
+            cache()
+                ->save("{$podcastId}_analytics_podcasts_by_hour", $found, 600);
+        }
+
+        return $found;
+    }
+}