Updates

computer-use/portal-camera.js

@@ -0,0 +1,61 @@
+import { spawn } from 'node:child_process';
+import path from 'node:path';
+
+export class PortalCamera {
+  constructor({
+    helper = path.resolve(new URL('./py/portal_camera.py', import.meta.url).pathname),
+    python = 'python3',
+    spawnImpl = spawn,
+    tmpDir = '/tmp/jarvis-webcam',
+    timeoutMs = 8000,
+    accessTimeoutMs = 120_000,
+  } = {}) {
+    this.helper = helper;
+    this.python = python;
+    this.spawnImpl = spawnImpl;
+    this.tmpDir = tmpDir;
+    this.timeoutMs = timeoutMs;
+    this.accessTimeoutMs = accessTimeoutMs;
+  }
+
+  access({ device = '' } = {}) {
+    return this._run(['access'], this.accessTimeoutMs, device);
+  }
+
+  capture(output, { device = '' } = {}) {
+    return this._run(['capture', output], this.timeoutMs, device);
+  }
+
+  _run(args, timeoutMs, device) {
+    return new Promise((resolve, reject) => {
+      const child = this.spawnImpl(this.python, [this.helper, ...args], {
+        stdio: ['ignore', 'pipe', 'pipe'],
+        env: { ...process.env, JARVIS_WEBCAM_DEVICE: device || '' },
+      });
+      let out = '';
+      let err = '';
+      let settled = false;
+      const timer = setTimeout(() => {
+        if (settled) return;
+        settled = true;
+        child.kill('SIGTERM');
+        reject(new Error('webcam helper timed out'));
+      }, timeoutMs);
+      const done = (fn) => (value) => {
+        if (settled) return;
+        settled = true;
+        clearTimeout(timer);
+        fn(value);
+      };
+      child.stdout.on('data', (chunk) => { out += chunk; });
+      child.stderr.on('data', (chunk) => { err += chunk; });
+      child.on('error', done(reject));
+      child.on('close', (code) => {
+        let payload = {};
+        try { payload = JSON.parse(String(out).trim().split('\n').pop() || '{}'); } catch {}
+        if (code === 0 && payload.ok) done(resolve)(payload);
+        else done(reject)(new Error(payload.error || err.trim() || `webcam helper exited ${code}`));
+      });
+    });
+  }
+}