spaxel/dashboard/node_modules/whatwg-encoding/lib/whatwg-encoding.js
jedarden c817e96802 feat: implement repeated-setting change detection with guided calibration
Detects when user changes same config setting 3+ times within 24 hours.
Shows non-intrusive prompt offering help with guided calibration flow.

Guided calibration features:
- Test for false positives (walk around room)
- Test for missed motion (sit still)
- Suggest optimal value based on diurnal baseline SNR and link health
- Apply suggested value button

Files:
- dashboard/js/proactive.js: Complete implementation with localStorage tracking

Acceptance:
- Help prompt fires after 3+ changes in 24h
- Calibration flow tests both directions
- Suggests value based on system data
- Apply button works
2026-04-11 00:18:19 -04:00

47 lines
1.4 KiB
JavaScript

"use strict";
const iconvLite = require("iconv-lite");
const supportedNames = require("./supported-names.json");
const labelsToNames = require("./labels-to-names.json");
const supportedNamesSet = new Set(supportedNames);
// https://encoding.spec.whatwg.org/#concept-encoding-get
exports.labelToName = label => {
label = String(label).trim().toLowerCase();
return labelsToNames[label] || null;
};
// https://encoding.spec.whatwg.org/#decode
exports.decode = (uint8Array, fallbackEncodingName) => {
let encoding = fallbackEncodingName;
if (!exports.isSupported(encoding)) {
throw new RangeError(`"${encoding}" is not a supported encoding name`);
}
const bomEncoding = exports.getBOMEncoding(uint8Array);
if (bomEncoding !== null) {
encoding = bomEncoding;
}
// iconv-lite will strip BOMs for us, so no need to do the stuff the spec does
return iconvLite.decode(uint8Array, encoding);
};
// https://github.com/whatwg/html/issues/1910#issuecomment-254017369
exports.getBOMEncoding = uint8Array => {
if (uint8Array[0] === 0xFE && uint8Array[1] === 0xFF) {
return "UTF-16BE";
} else if (uint8Array[0] === 0xFF && uint8Array[1] === 0xFE) {
return "UTF-16LE";
} else if (uint8Array[0] === 0xEF && uint8Array[1] === 0xBB && uint8Array[2] === 0xBF) {
return "UTF-8";
}
return null;
};
exports.isSupported = name => {
return supportedNamesSet.has(String(name));
};