@tailuge/messaging

Quick integration guide. See MESSAGING_SPEC.md for full API contract.

Install

npm install @tailuge/messaging

Quick Start

import { MessagingClient } from '@tailuge/messaging';

const client = new MessagingClient({ baseUrl: "https://your-nchan-server.com" });
client.start();

Lobby & Presence

const lobby = await client.joinLobby({
  messageType: "presence",
  type: "join",
  userId: "user-123",
  userName: "Alice",
});

lobby.onUsersChange((users) => {
  console.log(`Online: ${users.length}`);
  users.forEach(u => {
    const flag = countryToFlag(u.meta?.country);
    console.log(`${flag} ${u.userName}`);
  });
});

Challenge Opponent

const tableId = await lobby.challenge(targetUserId, "billiards");

lobby.onChallenge((challenge) => {
  if (challenge.type === "offer") {
    lobby.acceptChallenge(challenge.challengerId, challenge.ruleType, challenge.tableId);
  }
});

## Chat

```typescript
await lobby.sendChat(targetUserId, "Hello!");

lobby.onChat((msg) => {
  console.log(`Message from ${msg.senderId}: ${msg.text}`);
});

## Table Messaging

```typescript
interface Move { x: number; y: number }
const table = await client.joinTable<Move>("table-xyz", "user-123");

table.onMessage((msg) => {
  if (msg.type === "MOVE") {
    console.log(`Move at: ${msg.meta?.ts}`);
  }
});

await table.publish("MOVE", { x: 10, y: 20 });

Spectators

table.onSpectatorChange((spectators) => {
  console.log(`Spectators: ${spectators.length}`);
});

Cleanup

await client.stop();

Key Imports

import {
  MessagingClient,
  canChallenge,
  canSpectate,
  activeGames,
} from '@tailuge/messaging';

Predicates

if (canChallenge(targetUser, currentUserId)) {
  await lobby.challenge(targetUser.userId, "billiards");
}

if (canSpectate(targetUser, currentTableId)) {
  await client.joinTable(targetUser.tableId, currentUserId);
}

See MESSAGING_SPEC.md for complete interface definitions.