#!/usr/bin/env bun

// Detect whether the glasses are running our custom firmware, and which

// extensions it advertises.

//

// The CFW appends protobuf field 100 (a feature-token string) to the sid=0x09

// settings READ response; stock firmware never sends it. `queryCapabilities`

// does the read and parses that field. Absence => stock firmware.

//

// bun detect-cfw.ts

//

// Expected on CFW:

// firmware: L=2.2.4.34 R=2.2.4.34

// CFW detected: EVENCFW/6 img576 img640 imgz rle wakelease directfb fbguard

// contract v6, features: img576, img640, imgz, rle, wakelease, directfb, fbguard

// img576=yes img640=yes imgz=yes rle=yes directfb=yes fbguard=yes

// Expected on stock:

// no CFW capability field — stock firmware (or pre-caps CFW build)

import { G2Session, querySettings, queryCapabilities, hasFeature } from "g2-kit/ble";

const session = await G2Session.open();

const settings = await querySettings(session, 100);

if (settings) {

console.log(`firmware: L=${settings.leftSoftwareVersion} R=${settings.rightSoftwareVersion}`);

}

const caps = await queryCapabilities(session, 101);

if (!caps) {

console.log("no CFW capability field — stock firmware (or pre-caps CFW build)");

} else {

console.log(`CFW detected: ${caps.raw}`);

console.log(` contract v${caps.version}, features: ${[...caps.features].join(", ")}`);

// Example of gating behavior on individual features:

for (const f of ["img576", "img640", "imgz", "rle", "directfb", "fbguard"]) {

process.stdout.write(` ${f}=${hasFeature(caps, f) ? "yes" : "no"}`);

}

console.log();

}

await session.close();

process.exit(0);