gahew

server/src/services/lockdownGuard/index.js

@@ -0,0 +1,38 @@
+// lockdown Guard
+// Purpose: Defines the lockdown Guard module and the helpers/state used by this service unit.
+// Scope: Keeps runtime behavior unchanged while isolating responsibilities into a clear module boundary.
+const io = require('../../globals/io');
+const { MODES, getMode, modeEvents } = require('../modeManager');
+const { isLockdownAdmin } = require('../roleService');
+
+function disconnectForLockdown(socket) {
+  socket.emit('lockdown', { message: 'Server is in lockdown mode' });
+  socket.disconnect(true);
+}
+
+function clearLockdownTimer(socket) {
+  if (socket?.data?.lockdownTimer) {
+    clearTimeout(socket.data.lockdownTimer);
+    socket.data.lockdownTimer = null;
+  }
+}
+
+function enforceLockdown() {
+  for (const socket of io.sockets.sockets.values()) {
+    if (!isLockdownAdmin(socket)) {
+      disconnectForLockdown(socket);
+    }
+  }
+}
+
+module.exports = {
+  enforceLockdown,
+  disconnectForLockdown,
+  clearLockdownTimer,
+};
+
+modeEvents.on('change', (mode) => {
+  if (mode === MODES.LOCKDOWN) {
+    enforceLockdown();
+  }
+});