Simplify perf toggle by deduplicating branching logic

Early-return on invalid input, then unify the GET/POST and display
paths so each concern is handled once instead of per-subcommand.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/commands/perf.ts

@@ -7,23 +7,18 @@ interface PerfState {
 
 export async function perfToggle(onOff?: string) {
   try {
-    if (onOff === undefined) {
-      // Toggle
-      const res = await post<PerfState>('/api/system/perf')
-      if (res) console.log(`Perf timing ${res.perfTiming ? color.green('on') : color.red('off')}`)
-    } else if (onOff === 'on') {
-      const res = await post<PerfState>('/api/system/perf', { on: true })
-      if (res) console.log(`Perf timing ${color.green('on')}`)
-    } else if (onOff === 'off') {
-      const res = await post<PerfState>('/api/system/perf', { on: false })
-      if (res) console.log(`Perf timing ${color.red('off')}`)
-    } else if (onOff === 'status') {
-      const res = await get<PerfState>('/api/system/perf')
-      if (res) console.log(`Perf timing is ${res.perfTiming ? color.green('on') : color.red('off')}`)
-    } else {
+    if (onOff && !['on', 'off', 'status'].includes(onOff)) {
       console.error('Usage: toes perf [on|off|status]')
       process.exit(1)
     }
+    const body = onOff === 'on' ? { on: true } : onOff === 'off' ? { on: false } : undefined
+    const res = onOff === 'status'
+      ? await get<PerfState>('/api/system/perf')
+      : await post<PerfState>('/api/system/perf', body ?? {})
+    if (res) {
+      const label = res.perfTiming ? color.green('on') : color.red('off')
+      console.log(`Perf timing ${onOff === 'status' ? 'is ' : ''}${label}`)
+    }
   } catch (error) {
     handleError(error)
   }

src/cli/setup.ts

@@ -16,15 +16,15 @@ import {
   infoApp,
   listApps,
   logApp,
+  metricsApp,
   newApp,
   openApp,
+  perfToggle,
   renameApp,
   restartApp,
   rmApp,
   shareApp,
   startApp,
-  metricsApp,
-  perfToggle,
   stopApp,
   unshareApp,
 } from './commands'

src/server/api/system.ts

@@ -287,7 +287,7 @@ onHostLog(pushHostLog)
 // Perf timing toggle
 router.get('/perf', c => c.json({ perfTiming }))
 router.post('/perf', async c => {
-  const body = await c.req.json<{ on?: boolean }>()
+  const body = await c.req.json<{ on?: boolean }>().catch(() => ({}))
   const on = body.on ?? !perfTiming
   setPerfTiming(on)
   console.log(`[perf] timing ${on ? 'enabled' : 'disabled'}`)

src/server/proxy.ts

@@ -4,7 +4,6 @@ import { getAppBySubdomain } from '$apps'
 export type { WsData }
 
 export let perfTiming = false
-export const setPerfTiming = (on: boolean) => { perfTiming = on }
 
 const pendingMessages = new Map<ServerWebSocket<WsData>, (string | ArrayBuffer | Uint8Array)[]>()
 const upstreams = new Map<ServerWebSocket<WsData>, WebSocket>()
@@ -15,6 +14,8 @@ interface WsData {
   protocols: string[]
 }
 
+export const setPerfTiming = (on: boolean) => { perfTiming = on }
+
 export function extractSubdomain(host: string): string | null {
   // Strip port
   const hostname = host.replace(/:\d+$/, '')