Introduce dynamic hook loading

- Dynamically load addon files
- Dynamically load hooks
- Rewrite Logger-logic to use new hook logic (Monolog is working again)

src/Core/Logger/Capabilities/ICheckLoggerSettings.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2023, the Friendica project
+ *
+ * @license   GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Core\Logger\Capabilities;
+
+/**
+ * Whenever a logging specific check is necessary, use this interface to encapsulate and centralize this logic
+ */
+interface ICheckLoggerSettings
+{
+	/**
+	 * Checks if the logfile is set and usable
+	 *
+	 * @return string|null null in case everything is ok, otherwise returns the error
+	 */
+	public function checkLogfile(): ?string;
+
+	/**
+	 * Checks if the debugging logfile is usable in case it is set!
+	 *
+	 * @return string|null null in case everything is ok, otherwise returns the error
+	 */
+	public function checkDebugLogfile(): ?string;
+}