chatservice

server/src/services/chatService/socketHooks.js

@@ -0,0 +1,53 @@
+// Chat Socket Hooks
+// Purpose: Registers chat socket handlers and event-bus fan-out listeners.
+// Scope: Bridges socket events to chat handlers and publishes chat updates to connected clients.
+const io = require('../../globals/io');
+const { subscribe } = require('../eventBus');
+const { typingBySocket } = require('./state');
+const { buildTypingPayload, resolveRoverId, isPrivateClosedRoverId } = require('./contextBuilders');
+const { broadcastTyping } = require('./broadcast');
+const { playTypingNote, TYPING_START_NOTE } = require('./notifications');
+
+function registerChatSocketHooks({ history, handleIncoming }) {
+  io.on('connection', (socket) => {
+    socket.emit('chat:init', history);
+    socket.on('chat:send', (payload = {}, cb = () => {}) => handleIncoming(payload, socket, cb));
+    socket.on('chat:typing', (payload = {}) => {
+      const isTyping = Boolean(payload?.isTyping);
+      const wasTyping = typingBySocket.get(socket.id);
+      if (isTyping) {
+        typingBySocket.set(socket.id, true);
+        if (!wasTyping) {
+          const roverId = resolveRoverId(socket?.id);
+          playTypingNote(roverId, TYPING_START_NOTE, socket?.id);
+        }
+      } else {
+        typingBySocket.delete(socket.id);
+      }
+      const roverId = resolveRoverId(socket?.id);
+      if (isPrivateClosedRoverId(roverId)) return;
+      broadcastTyping(buildTypingPayload(socket, { roverId, fromDiscord: false, isTyping }));
+    });
+    socket.on('disconnect', () => {
+      if (!typingBySocket.has(socket.id)) return;
+      typingBySocket.delete(socket.id);
+      const roverId = resolveRoverId(socket?.id);
+      if (isPrivateClosedRoverId(roverId)) return;
+      broadcastTyping(buildTypingPayload(socket, { roverId, fromDiscord: false, isTyping: false }));
+    });
+  });
+
+  subscribe('chat:message', ({ payload }) => {
+    if (!payload) return;
+    io.emit('chat:message', payload);
+  });
+
+  subscribe('chat:typing', ({ payload }) => {
+    if (!payload) return;
+    io.emit('chat:typing', payload);
+  });
+}
+
+module.exports = {
+  registerChatSocketHooks,
+};