gahew

server/src/services/nicknameService/index.js

@@ -0,0 +1,53 @@
+// nickname Service
+// Purpose: Defines the nickname Service module and the helpers/state used by this service unit.
+// Scope: Keeps runtime behavior unchanged while isolating responsibilities into a clear module boundary.
+const EventEmitter = require('events');
+const io = require('../../globals/io');
+const logger = require('../../globals/logger').child('nicknameService');
+
+const nicknameEvents = new EventEmitter();
+
+function sanitizeNickname(raw) {
+  if (typeof raw !== 'string') return '';
+  const trimmed = raw.trim();
+  if (!trimmed) return '';
+  const sanitized = trimmed.replace(/\*/g, 'nope');
+  return sanitized.slice(0, 32);
+}
+
+function getNickname(socket) {
+  return socket?.data?.nickname || '';
+}
+
+function setNickname(socket, nickname) {
+  if (!socket) return null;
+  const value = sanitizeNickname(nickname);
+  if (!value) {
+    throw new Error('Nickname required');
+  }
+  socket.data = socket.data || {};
+  if (socket.data.nickname === value) {
+    return value;
+  }
+  socket.data.nickname = value;
+  nicknameEvents.emit('change', { socketId: socket.id, nickname: value });
+  logger.info('Nickname set', { socketId: socket.id, nickname: value });
+  return value;
+}
+
+io.on('connection', (socket) => {
+  socket.on('nickname:set', ({ nickname } = {}, cb = () => {}) => {
+    try {
+      const value = setNickname(socket, nickname);
+      cb({ success: true, nickname: value });
+    } catch (err) {
+      cb({ error: err.message });
+    }
+  });
+});
+
+module.exports = {
+  getNickname,
+  setNickname,
+  nicknameEvents,
+};