Move admin/queue to src/Module

- Add Module\Admin\Queue class
- Add route for admin/queue[/deferred]
- Add queue admin aside menu entry
- Remove obsolete templates/admin/queue.tpl from base and frio
- Move templates/admin/workerqueue.tpl to templates/admin/queue.tpl
- Remove admin_page_workerqueue and admin_page_workerqueue_post from mod/admin.php
- Update admin/summary.tpl with new queue admin paths

src/Module/Admin/Queue.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Friendica\Module\Admin;
+
+use Friendica\Core\L10n;
+use Friendica\Core\Renderer;
+use Friendica\Database\DBA;
+use Friendica\Module\BaseAdminModule;
+use Friendica\Util\Arrays;
+use Friendica\Util\DateTimeFormat;
+
+/**
+ * @brief Admin Inspect Queue Page
+ *
+ * Generates a page for the admin to have a look into the current queue of
+ * worker jobs. Shown are the parameters for the job and its priority.
+ *
+ * @return string
+ */
+class Queue extends BaseAdminModule
+{
+	public static function content()
+	{
+		parent::content();
+
+		$a = self::getApp();
+
+		// @TODO: Replace with parameter from router
+		$deferred = $a->argc > 2 && $a->argv[2] == 'deferred';
+
+		// get jobs from the workerqueue table
+		if ($deferred) {
+			$condition = ["NOT `done` AND `next_try` > ?", DateTimeFormat::utcNow()];
+			$sub_title = L10n::t('Inspect Deferred Worker Queue');
+			$info = L10n::t("This page lists the deferred worker jobs. This are jobs that couldn't be executed at the first time.");
+		} else {
+			$condition = ["NOT `done` AND `next_try` < ?", DateTimeFormat::utcNow()];
+			$sub_title = L10n::t('Inspect Worker Queue');
+			$info = L10n::t('This page lists the currently queued worker jobs. These jobs are handled by the worker cronjob you\'ve set up during install.');
+		}
+
+		$entries = DBA::select('workerqueue', ['id', 'parameter', 'created', 'priority'], $condition, ['order' => ['priority']]);
+
+		$r = [];
+		while ($entry = DBA::fetch($entries)) {
+			// fix GH-5469. ref: src/Core/Worker.php:217
+			$entry['parameter'] = Arrays::recursiveImplode(json_decode($entry['parameter'], true), ': ');
+			$entry['created'] = DateTimeFormat::local($entry['created']);
+			$r[] = $entry;
+		}
+		DBA::close($entries);
+
+		$t = Renderer::getMarkupTemplate('admin/queue.tpl');
+		return Renderer::replaceMacros($t, [
+			'$title' => L10n::t('Administration'),
+			'$page' => $sub_title,
+			'$count' => count($r),
+			'$id_header' => L10n::t('ID'),
+			'$param_header' => L10n::t('Job Parameters'),
+			'$created_header' => L10n::t('Created'),
+			'$prio_header' => L10n::t('Priority'),
+			'$info' => $info,
+			'$entries' => $r,
+		]);
+	}
+}