meshai/work/dashboard-frontend/node_modules/fraction.js/examples/approx.js
malice 2c46c9104d
feat(region-routing): unified per-family routing cards + region-scoped family→channel routing (#87)
* feat(region-routing): P1 tagging + region_routes primitive + read/write API + preview launcher

- config.py: add Coverage.region_tagging (bool=False); add RegionRouteMatrix
  dataclass (enabled, cells) above NotificationsConfig; add region_routes field
  to NotificationsConfig; add explicit hydration branch for region_routes in
  _dict_to_dataclass mirroring destinations pattern.

- coverage_area.py: add MonitoringArea.name (str|None=None, frozen); update
  areas_from_config to preserve name; refactor inline geom extraction from
  classify_event_areas into shared _event_geom_json helper; add
  matching_area_names(geom_json, areas)->list[str] (additive, all named
  matches, config-order, deduped; gate unchanged); add event_region_names
  convenience wrapper.

- coverage_filter.py: add region_tagging ctor kwarg; stamp event.region/
  regions before the gate when region_tagging=True and areas non-empty and
  not event.regions (never clobbers satpass preset).

- pipeline/__init__.py: wire region_tagging into CoverageFilter construction.

- notification_routes.py: add GET /notifications/regions (named coverage area
  names, config-order, deduped); GET /notifications/region-routing (matrix as
  JSON); POST /notifications/region-routing (explicit RMW — only region_routes
  changes, toggles/rules/destinations survive).

- scripts/preview_dashboard.py: mesh-free launcher — dashboard API only, no
  mesh connector, no broadcast loop; vite runs separately.

All 87 coverage tests pass; 300 total pass; 6 pre-existing failures unchanged
(adapter config count mismatch + MeshCore EventType.NEW_CONTACT).

* feat(region-routing): manual region x family matrix editor page

Adds RegionRoutingMatrix.tsx — a plain editor over the region_routes
config primitive. Rows = families (via useFamilies()), cols = regions
(from GET /api/notifications/regions). Each cell exposes MT channel
(ChannelPicker single + includeDisabled), MC channel name (text input),
min_severity select (routine/priority/critical/immediate), and an enabled
checkbox. Only cells where MT or MC is set are included in the sparse
POST payload. Master enable toggle maps to top-level enabled. MT budget
guard warns when more than 7 distinct MT indices are in use. Sticky
family column; horizontal scroll for wide region sets.

Registers route /region-routing in App.tsx and adds "Region Routing"
nav entry (Map icon) under the Meshtastic section in Layout.tsx,
immediately after Routing.

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

* fix(region-routing): regions endpoint reads saved (disk) coverage so routing columns are dynamic without a bot restart; preview reloads config after writes

* feat(routing): unify MT/MC routing into per-family cards; region routing as an in-card expand; remove rules/destinations UI + standalone page

* refactor(routing): move Meshtastic Routing from /notifications to /meshtastic/routing (mirror /meshcore/routing); redirect legacy path

* feat(region-routing): dispatcher honors region_routes matrix (authoritative-on-match, per-region cooldown, per-channel dedup); non-matrix path unchanged

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(region-routing): matrix dedup key must match boot-restore 2-tuple form (prevents restart re-broadcast flood); regression test

---------

Co-authored-by: Matt Johnson <mj@k7zvx.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-07-07 16:52:03 -06:00

54 lines
1.1 KiB
JavaScript

/*
Fraction.js v5.0.0 10/1/2024
https://raw.org/article/rational-numbers-in-javascript/
Copyright (c) 2024, Robert Eisele (https://raw.org/)
Licensed under the MIT license.
*/
const Fraction = require('fraction.js');
// Another rational approximation, not using Farey Sequences but Binary Search using the mediant
function approximate(p, precision) {
var num1 = Math.floor(p);
var den1 = 1;
var num2 = num1 + 1;
var den2 = 1;
if (p !== num1) {
while (den1 <= precision && den2 <= precision) {
var m = (num1 + num2) / (den1 + den2);
if (p === m) {
if (den1 + den2 <= precision) {
den1 += den2;
num1 += num2;
den2 = precision + 1;
} else if (den1 > den2) {
den2 = precision + 1;
} else {
den1 = precision + 1;
}
break;
} else if (p < m) {
num2 += num1;
den2 += den1;
} else {
num1 += num2;
den1 += den2;
}
}
}
if (den1 > precision) {
den1 = den2;
num1 = num2;
}
return new Fraction(num1, den1);
}