| 34 | peer.publish(CHANNEL, JSON.stringify({ t: 'join', peer: identity } satisfies ServerMessage)) |
| 35 | }, |
| 36 | message(peer, message) { |
| 37 | const identity = peer.context.identity as Peer | undefined |
| 38 | if (!identity) return |
| 39 | |
| 40 | let msg: ClientMessage |
| 41 | try { |
| 42 | msg = JSON.parse(message.text()) as ClientMessage |
| 43 | } |
| 44 | catch { |
| 45 | return |
| 46 | } |
| 47 | |
| 48 | switch (msg.t) { |
| 49 | case 'cursor': { |
| 50 | const x = toUnit(msg.x) |
| 51 | const y = toUnit(msg.y) |
| 52 | if (x === null || y === null) return |
| 53 | peer.publish(CHANNEL, JSON.stringify({ t: 'cursor', id: identity.id, x, y } satisfies ServerMessage)) |
| 54 | break |
| 55 | } |
| 56 | case 'reaction': { |
| 57 | const x = toUnit(msg.x) |
| 58 | const y = toUnit(msg.y) |
| 59 | if (x === null || y === null) return |
| 60 | if (!(REACTIONS as readonly string[]).includes(msg.emoji)) return |
| 61 | peer.publish(CHANNEL, JSON.stringify({ t: 'reaction', id: identity.id, emoji: msg.emoji, x, y } satisfies ServerMessage)) |
| 62 | break |
| 63 | } |
| 64 | case 'ping': |
| 65 | send(peer, { t: 'pong' }) |
| 66 | break |
| 67 | } |
| 68 | }, |
| 69 | close(peer) { |
| 70 | const identity = peer.context.identity as Peer | undefined |
| 71 | if (!identity) return |