added JSON support to select the services

src/systemd.h

@@ -0,0 +1,34 @@
+//
+// Created by lukas on 5/11/25.
+//
+
+#ifndef SYSTEMD_H
+#define SYSTEMD_H
+
+#include <string>
+
+namespace systemd {
+    /**
+     * Check if a service is active
+     * @param service_name name of the systemd service
+     * @return
+     */
+    bool is_service_active(std::string_view service_name);
+
+    /**
+     * Check if a service is enabled
+     * @param service_name name of the systemd service
+     * @return
+     */
+    bool is_service_enabled(std::string_view service_name);
+
+    /**
+     * Toggle the service on or off dependent on its current state
+     * @param service_name name of the systemd service
+     */
+    void toggle_service(std::string_view service_name);
+}
+
+
+
+#endif //SYSTEMD_H