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/Admin/Controllers/PodcastPlatformController.php

@@ -0,0 +1,110 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright  2020 Podlibre
+ * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
+ * @link       https://castopod.org/
+ */
+
+namespace Modules\Admin\Controllers;
+
+use App\Entities\Podcast;
+use App\Models\PlatformModel;
+use App\Models\PodcastModel;
+use CodeIgniter\Exceptions\PageNotFoundException;
+use CodeIgniter\HTTP\RedirectResponse;
+use Config\Services;
+
+class PodcastPlatformController extends BaseController
+{
+    protected ?Podcast $podcast;
+
+    public function _remap(string $method, string ...$params): mixed
+    {
+        if ($params === []) {
+            return $this->{$method}();
+        }
+
+        if (
+            ($this->podcast = (new PodcastModel())->getPodcastById((int) $params[0])) !== null
+        ) {
+            unset($params[0]);
+            return $this->{$method}(...$params);
+        }
+
+        throw PageNotFoundException::forPageNotFound();
+    }
+
+    public function index(): string
+    {
+        return view('Modules\Admin\Views\podcast\platforms\dashboard');
+    }
+
+    public function platforms(string $platformType): string
+    {
+        helper('form');
+
+        $data = [
+            'podcast' => $this->podcast,
+            'platformType' => $platformType,
+            'platforms' => (new PlatformModel())->getPlatformsWithLinks($this->podcast->id, $platformType),
+        ];
+
+        replace_breadcrumb_params([
+            0 => $this->podcast->title,
+        ]);
+        return view('Modules\Admin\Views\podcast\platforms', $data);
+    }
+
+    public function attemptPlatformsUpdate(string $platformType): RedirectResponse
+    {
+        $platformModel = new PlatformModel();
+        $validation = Services::validation();
+
+        $podcastsPlatformsData = [];
+
+        foreach (
+            $this->request->getPost('platforms')
+            as $platformSlug => $podcastPlatform
+        ) {
+            $podcastPlatformUrl = $podcastPlatform['url'];
+            if ($podcastPlatformUrl === null) {
+                continue;
+            }
+            if (! $validation->check($podcastPlatformUrl, 'validate_url')) {
+                continue;
+            }
+            $podcastsPlatformsData[] = [
+                'platform_slug' => $platformSlug,
+                'podcast_id' => $this->podcast->id,
+                'link_url' => $podcastPlatformUrl,
+                'link_content' => $podcastPlatform['content'],
+                'is_visible' =>
+                    array_key_exists('visible', $podcastPlatform) &&
+                    $podcastPlatform['visible'] === 'yes',
+                'is_on_embeddable_player' =>
+                    array_key_exists(
+                        'on_embeddable_player',
+                        $podcastPlatform,
+                    ) && $podcastPlatform['on_embeddable_player'] === 'yes',
+            ];
+        }
+
+        $platformModel->savePodcastPlatforms($this->podcast->id, $platformType, $podcastsPlatformsData);
+
+        return redirect()
+            ->back()
+            ->with('message', lang('Platforms.messages.updateSuccess'));
+    }
+
+    public function removePodcastPlatform(string $platformSlug): RedirectResponse
+    {
+        (new PlatformModel())->removePodcastPlatform($this->podcast->id, $platformSlug);
+
+        return redirect()
+            ->back()
+            ->with('message', lang('Platforms.messages.removeLinkSuccess'));
+    }
+}