git.r.bdr.sh - rbdr/junction/blob - server/index.js

   1 import { Server } from "socket.io";
   2 import { port } from "./config.js";
   3 import * as events from "./events.js";
   4
   5 const server = new Server(port);
   6 console.debug(`Listening on port ${port}`);
   7
   8 const rooms = {};
   9
  10 server.on(events.types.CONNECTION, (socket) => {
  11   const me = socket.id;
  12
  13   console.debug(`[CONNECT] New client connected with ID ${me}`);
  14
  15   socket.on(events.types.JOIN, async ({ room }) => {
  16     socket.join(room);
  17
  18     if (!rooms[room]) {
  19       rooms[room] = [];
  20     }
  21
  22     rooms[room].push(socket.id);
  23
  24     const sockets = await server.in(room).fetchSockets();
  25     sockets.forEach((peer) => {
  26       if (peer.id !== me) {
  27         events.addPeer(me, false)(peer);
  28         events.addPeer(peer.id, true)(socket);
  29       }
  30     });
  31   });
  32
  33   socket.on(events.types.DISCONNECTING, () => {
  34     for (const room in rooms) {
  35       if (rooms[room].includes(me)) {
  36         rooms[room] = rooms[room].filter((id) => id !== me);
  37         events.removePeer(me)(socket.to(room));
  38         if (rooms[room].length === 0) {
  39           delete rooms[room];
  40         }
  41       }
  42     }
  43   });
  44
  45   socket.on(events.types.RELAY_ICE_CANDIDATE, async ({ candidate, peerId }) => {
  46     events.ICECandidateReceived(me, candidate)(socket.to(peerId));
  47   });
  48
  49   socket.on(events.types.RELAY_OFFER, async ({ offer, peerId }) => {
  50     events.offerReceived(me, offer)(socket.to(peerId));
  51   });
  52
  53   socket.on(events.types.RELAY_ANSWER, async ({ answer, peerId }) => {
  54     events.answerReceived(me, answer)(socket.to(peerId));
  55   });
  56 });