refactor: Use dedicated WebSocket server for torch sync

- Add torch WebSocket server on port 4106
- Remove HTTP polling, use WebSocket for instant sync
- Torch state changes broadcast immediately to all clients
- Auto-reconnect on disconnect
- Add port 4106 to kill-ports script
This commit is contained in:
2026-02-14 16:40:40 -06:00
parent fe99c9ff61
commit c98f3e2b99
8 changed files with 309 additions and 334 deletions

View File

@@ -50,6 +50,9 @@ export const endpoints = {
// WebMCP HTTP API (for token requests)
webmcpHttp: buildHttpUrl('/mcp', 4102),
// Torch WebSocket (multi-browser sync)
torch: buildWsUrl('/ws/torch', 4106),
// API base URL (Vite proxy handles /api in dev)
api: '/api'
}

View File

@@ -2,205 +2,145 @@ import { useTorchStore } from '../stores/torch'
import { getWebMCP, autoConnect } from './webmcp'
import { endpoints } from '../config/endpoints'
const API_BASE = endpoints.api
let pollingInterval: number | null = null
let torchWs: WebSocket | null = null
let clientId: string | null = null
let reconnectTimeout: number | null = null
/**
* Register this browser as a torch client
* Connect to torch WebSocket server
*/
export async function registerClient(): Promise<string | null> {
try {
const res = await fetch(`${API_BASE}/torch/register`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
function connectToTorchServer(): Promise<void> {
return new Promise((resolve, reject) => {
if (torchWs?.readyState === WebSocket.OPEN) {
resolve()
return
}
console.log('[Torch] Connecting to server...')
torchWs = new WebSocket(endpoints.torch)
torchWs.onopen = () => {
console.log('[Torch] Connected to server')
// Register this client
torchWs?.send(JSON.stringify({
type: 'register',
userAgent: navigator.userAgent,
hostname: window.location.hostname
})
})
if (!res.ok) {
console.error('[Torch] Failed to register:', res.status)
return null
}))
resolve()
}
const data = await res.json()
clientId = data.id
const torchStore = useTorchStore()
torchStore.setClientId(data.id)
console.log(`[Torch] Registered as ${data.id}, hasTorch: ${data.hasTorch}`)
// If we have the torch, connect to MCP
if (data.hasTorch) {
torchStore.setTorchState(data.id)
await connectToMCP()
torchWs.onmessage = (event) => {
try {
const data = JSON.parse(event.data)
handleMessage(data)
} catch (e) {
console.error('[Torch] Invalid message:', e)
}
}
return data.id
} catch (e) {
console.error('[Torch] Error registering:', e)
return null
}
torchWs.onclose = () => {
console.log('[Torch] Disconnected from server')
torchWs = null
// Reconnect after delay
if (!reconnectTimeout) {
reconnectTimeout = window.setTimeout(() => {
reconnectTimeout = null
connectToTorchServer()
}, 2000)
}
}
torchWs.onerror = (e) => {
console.error('[Torch] WebSocket error:', e)
reject(e)
}
})
}
/**
* Unregister this browser
* Handle messages from torch server
*/
export async function unregisterClient(): Promise<void> {
if (!clientId) return
async function handleMessage(data: any) {
const torchStore = useTorchStore()
try {
await fetch(`${API_BASE}/torch/client/${clientId}`, {
method: 'DELETE'
})
console.log('[Torch] Unregistered')
} catch (e) {
console.error('[Torch] Error unregistering:', e)
switch (data.type) {
case 'registered': {
clientId = data.id
torchStore.setClientId(data.id)
console.log(`[Torch] Registered as ${data.id}, hasTorch: ${data.hasTorch}`)
if (data.hasTorch) {
torchStore.setTorchState(data.id)
await connectToMCP()
}
break
}
case 'torch-update': {
const hadTorch = torchStore.hasTorch
const hasTorchNow = data.holderId === clientId
torchStore.setClients(data.clients)
torchStore.setTorchState(data.holderId)
if (hadTorch && !hasTorchNow) {
console.log('[Torch] Lost torch, disconnecting from MCP')
disconnectFromMCP()
} else if (!hadTorch && hasTorchNow) {
console.log('[Torch] Got torch, connecting to MCP')
await connectToMCP()
}
break
}
case 'granted': {
console.log('[Torch] Torch granted!')
torchStore.setRequesting(false)
break
}
case 'released': {
console.log('[Torch] Torch released')
break
}
}
clientId = null
}
/**
* Request the torch
*/
export async function requestTorch(): Promise<boolean> {
if (!clientId) {
console.error('[Torch] Not registered')
if (!torchWs || torchWs.readyState !== WebSocket.OPEN) {
console.error('[Torch] Not connected to server')
return false
}
const torchStore = useTorchStore()
torchStore.setRequesting(true)
try {
const res = await fetch(`${API_BASE}/torch/request`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ clientId })
})
if (!res.ok) {
console.error('[Torch] Failed to request:', res.status)
torchStore.setRequesting(false)
return false
}
const data = await res.json()
console.log('[Torch] Torch granted!')
// Update state and connect to MCP
torchStore.setTorchState(clientId)
torchStore.setRequesting(false)
await connectToMCP()
return true
} catch (e) {
console.error('[Torch] Error requesting:', e)
torchStore.setRequesting(false)
return false
}
torchWs.send(JSON.stringify({ type: 'request' }))
return true
}
/**
* Release the torch
*/
export async function releaseTorch(): Promise<boolean> {
if (!clientId) {
console.error('[Torch] Not registered')
if (!torchWs || torchWs.readyState !== WebSocket.OPEN) {
console.error('[Torch] Not connected to server')
return false
}
const torchStore = useTorchStore()
if (!torchStore.hasTorch) {
console.warn('[Torch] Cannot release - do not have torch')
return false
}
try {
const res = await fetch(`${API_BASE}/torch/release`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ clientId })
})
if (!res.ok) {
console.error('[Torch] Failed to release:', res.status)
return false
}
console.log('[Torch] Torch released')
// Update state and disconnect from MCP
torchStore.setTorchState(null)
disconnectFromMCP()
return true
} catch (e) {
console.error('[Torch] Error releasing:', e)
return false
}
}
/**
* Fetch current torch state from server
*/
export async function fetchTorchState(): Promise<void> {
try {
const res = await fetch(`${API_BASE}/torch`)
if (!res.ok) return
const data = await res.json()
const torchStore = useTorchStore()
torchStore.setClients(data.clients)
// Check if torch holder changed
const hadTorch = torchStore.hasTorch
const hasTorchNow = data.holderId === clientId
if (hadTorch && !hasTorchNow) {
// We lost the torch - disconnect
console.log('[Torch] Lost torch, disconnecting from MCP')
torchStore.setTorchState(data.holderId)
disconnectFromMCP()
} else if (!hadTorch && hasTorchNow) {
// We got the torch - connect
console.log('[Torch] Got torch, connecting to MCP')
torchStore.setTorchState(data.holderId)
await connectToMCP()
} else {
torchStore.setTorchState(data.holderId)
}
} catch (e) {
// Silently ignore polling errors
}
}
/**
* Start polling for torch state changes
*/
export function startTorchPolling(intervalMs: number = 2000) {
if (pollingInterval) return
console.log('[Torch] Starting polling...')
pollingInterval = window.setInterval(fetchTorchState, intervalMs)
}
/**
* Stop polling
*/
export function stopTorchPolling() {
if (pollingInterval) {
window.clearInterval(pollingInterval)
pollingInterval = null
console.log('[Torch] Polling stopped')
}
torchWs.send(JSON.stringify({ type: 'release' }))
return true
}
/**
@@ -244,26 +184,28 @@ function disconnectFromMCP(): void {
* Initialize torch system
*/
export async function initTorch(): Promise<void> {
// Register this client
await registerClient()
// Start polling for state changes
startTorchPolling()
await connectToTorchServer()
// Cleanup on page unload
window.addEventListener('beforeunload', () => {
stopTorchPolling()
// Note: unregisterClient is async, may not complete before unload
// Server should handle stale clients via timeout
if (reconnectTimeout) {
clearTimeout(reconnectTimeout)
}
torchWs?.close()
})
}
/**
* Cleanup torch system
*/
export async function destroyTorch(): Promise<void> {
stopTorchPolling()
await unregisterClient()
export function destroyTorch(): void {
if (reconnectTimeout) {
clearTimeout(reconnectTimeout)
reconnectTimeout = null
}
torchWs?.close()
torchWs = null
clientId = null
const torchStore = useTorchStore()
torchStore.reset()