francesco448
19eba1eebd
Set up the HTTP server with Express, attach Socket.IO for real-time messaging, add CORS middleware, async error handling utility, and REST routes for room join/leave/messages/participants. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
127 lines
3.3 KiB
JavaScript
127 lines
3.3 KiB
JavaScript
const express = require('express')
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const { randomUUID } = require('crypto')
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const asyncHandler = require('../utils/asyncHandler')
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function createRoomsRouter({ database, io }) {
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const router = express.Router()
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router.post(
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'/:room/join',
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asyncHandler(async (req, res) => {
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const { room } = req.params
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const { username, userId } = req.body
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if (!username || !username.trim()) {
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return res.status(400).json({ error: 'Username is required' })
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}
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const id = userId || randomUUID()
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const user = await database.upsertUser({
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id,
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username: username.trim(),
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room,
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})
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await broadcastParticipants(database, io, room)
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res.json({ user })
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}),
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)
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router.patch(
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'/:room/users/:userId',
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asyncHandler(async (req, res) => {
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const { room, userId } = req.params
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const { username } = req.body
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if (!username || !username.trim()) {
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return res.status(400).json({ error: 'Username is required' })
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}
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const user = await database.getUser(userId)
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if (!user || user.room !== room) {
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return res.status(404).json({ error: 'User not found in this room' })
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}
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const updated = await database.updateUsername(userId, username.trim())
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await broadcastParticipants(database, io, room)
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res.json({ user: updated })
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}),
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)
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router.post(
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'/:room/leave',
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asyncHandler(async (req, res) => {
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const { room } = req.params
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const { userId } = req.body
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if (!userId) {
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return res.status(400).json({ error: 'userId is required' })
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}
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const user = await database.getUser(userId)
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if (!user || user.room !== room) {
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return res.status(404).json({ error: 'User not found in this room' })
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}
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await database.setUserOffline(userId)
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await broadcastParticipants(database, io, room)
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res.json({ success: true })
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}),
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)
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router.get(
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'/:room/messages',
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asyncHandler(async (req, res) => {
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const { room } = req.params
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const messages = await database.getMessages(room)
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res.json({ messages })
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}),
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)
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router.get(
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'/:room/participants',
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asyncHandler(async (req, res) => {
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const { room } = req.params
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const participants = await database.getParticipants(room)
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res.json({ participants })
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}),
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)
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router.post(
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'/:room/messages',
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asyncHandler(async (req, res) => {
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const { room } = req.params
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const { userId, text } = req.body
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if (!userId || !text || !text.trim()) {
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return res.status(400).json({ error: 'userId and text are required' })
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}
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const user = await database.getUser(userId)
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if (!user || user.room !== room) {
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return res.status(404).json({ error: 'Unknown user or room mismatch' })
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}
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const message = await database.addMessage({
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id: randomUUID(),
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room,
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userId,
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username: user.username,
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text: text.trim(),
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})
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io.to(room).emit('message:new', message)
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res.status(201).json({ message })
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}),
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)
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return router
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}
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async function broadcastParticipants(database, io, room) {
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const participants = await database.getParticipants(room)
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io.to(room).emit('participants:update', participants)
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}
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module.exports = createRoomsRouter
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