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382 lines
22 KiB
JavaScript
382 lines
22 KiB
JavaScript
/*
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* fee[dB]ack v0.3.0 — topbar Tuner + Instrument Selector cards.
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*
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* Implements the Google Stitch "Tuner and Instrument Selector Components"
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* (project 2627687099825089475): charcoal rounded cards — a tuner display
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* (vertical heat-gradient meter + active-green segment + big italic note +
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* Hz) and an instrument selector (guitar icon + chevron dropdown), scaled to
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* the header row.
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*
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* Behaviour:
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* - Clicking the tuner card opens the SAME tuner as the plugin's floating
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* "Tuner" button (window.tuner.toggle() / #tuner-toggle-btn).
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* - The instrument selector persists instrument/strings/tuning/reference in
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* /api/settings, emits `instrument:changed`, AND pushes the selection into
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* the tuner plugin (POST /api/plugins/tuner/config + window._tunerReloadConfig)
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* so the tuner auto-switches its tuning.
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*/
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(function () {
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'use strict';
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const sm = window.slopsmith;
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const esc = (s) => String(s == null ? '' : s).replace(/[&<>"']/g, (c) => (
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{ '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' }[c]));
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const STRING_COUNTS = { guitar: [6, 7, 8], bass: [4, 5] };
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// Tuning names per instrument key (e.g. 'guitar-6', 'bass-4'), loaded from
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// GET /api/tunings. Falls back to empty arrays until the fetch resolves.
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let _tuningsByKey = {};
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function _tuningsForKey(key) { return Object.keys(_tuningsByKey[key] || {}); }
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function _tuningsForInstrument(instrument, string_count) {
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return _tuningsForKey(instrument + '-' + string_count);
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}
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// Lowest-string note per tuning name, for the tuner card's note readout.
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// Populated from /api/tunings frequencies: low string = index 0.
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let TUNING_NOTE = {};
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// Chromatic scale (C-based). Index 0 = lowest string relative to E2 (82.41 Hz).
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// The lowest open string of guitar-6 Standard is E2; offset 0 maps to 'E'.
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const NOTE_NAMES = ['C', 'C#', 'D', 'Eb', 'E', 'F', 'F#', 'G', 'Ab', 'A', 'Bb', 'B'];
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function _freqToNote(hz) {
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if (!hz || !Number.isFinite(hz) || hz <= 0) return 'E';
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const midi = Math.round(69 + 12 * Math.log2(hz / 440));
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return NOTE_NAMES[((midi % 12) + 12) % 12];
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}
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// Resolve a custom offset-array tuning to a readable low-string note name.
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// Offsets are semitones from E Standard (index 0 = lowest string).
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function lowStringNote(off) {
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const semis = Array.isArray(off) && Number.isFinite(off[0]) ? off[0] : 0;
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return NOTE_NAMES[(((4 + semis) % 12) + 12) % 12];
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}
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// Display label for the active tuning: a named tuning as-is, or 'Custom'
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// for an offset-array tuning (which has no canonical name).
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function tuningLabel() {
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return typeof settings.tuning === 'string' ? settings.tuning : 'Custom';
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}
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let settings = { instrument: 'guitar', string_count: 6, tuning: 'Standard', reference_pitch: 440 };
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async function loadTunings() {
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try {
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const r = await fetch('/api/tunings');
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if (!r.ok) return;
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const data = await r.json();
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_tuningsByKey = data.tunings || {};
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// Build TUNING_NOTE from the first (lowest) string frequency of each tuning.
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TUNING_NOTE = {};
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for (const key of Object.keys(_tuningsByKey)) {
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for (const [name, freqs] of Object.entries(_tuningsByKey[key])) {
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if (!(name in TUNING_NOTE) && Array.isArray(freqs) && freqs.length > 0) {
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TUNING_NOTE[name] = _freqToNote(freqs[0]);
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}
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}
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}
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} catch (_) { /* non-fatal — TUNINGS falls back to empty, dropdown shows nothing */ }
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}
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async function loadSettings() {
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try {
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const r = await fetch('/api/settings');
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if (r.ok) {
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const s = await r.json();
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// Clamp persisted values to valid ranges — config.json could
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// hold out-of-range data (hand-edited or from an import), and the
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// badge/tuner must render consistent state, not a bad number.
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const instrument = s.instrument === 'bass' ? 'bass' : 'guitar';
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const counts = STRING_COUNTS[instrument];
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const sc = Number(s.string_count);
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const scValid = counts.includes(sc) ? sc : counts[0];
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const tunings = _tuningsForInstrument(instrument, scValid);
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let ref = Number(s.reference_pitch);
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if (!Number.isFinite(ref)) ref = 440;
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// tuning: a known named tuning is used as-is; a custom
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// offset-array tuning (see /api/settings) is PRESERVED rather
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// than discarded — the named-tuning badge can't label it yet
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// (tracked for P23), and pushToTuner()/renderTuner() guard the
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// non-string case — anything else falls back to the default.
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let tuning;
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if (typeof s.tuning === 'string') tuning = tunings.includes(s.tuning) ? s.tuning : (tunings[0] || 'Standard');
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else if (Array.isArray(s.tuning)) tuning = s.tuning;
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else tuning = tunings[0] || 'Standard';
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settings = {
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instrument: instrument,
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string_count: scValid,
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tuning: tuning,
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reference_pitch: Math.min(450, Math.max(430, ref)),
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};
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}
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} catch (e) { /* settings endpoint always present */ }
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}
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async function saveSettings(patch) {
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// Only adopt the patch once the server accepts it. /api/settings returns
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// {error: ...} with HTTP 200 on a validation failure, so a rejected
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// patch must NOT mutate local state, emit instrument:changed, or push to
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// the tuner — otherwise the UI/tuner desync from the persisted config.
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let accepted = false;
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try {
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const r = await fetch('/api/settings', {
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method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(patch),
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});
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if (r.ok) {
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const body = await r.json().catch(() => ({}));
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accepted = !(body && body.error);
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}
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} catch (e) { /* non-fatal — leave settings unchanged */ }
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if (!accepted) return;
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Object.assign(settings, patch);
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if (sm && sm.emit) sm.emit('instrument:changed', {
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instrument: settings.instrument, stringCount: settings.string_count, tuning: settings.tuning,
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});
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pushToTuner();
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renderTuner(); // reflect new tuning on the tuner card
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}
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// Drive the tuner plugin's instrument + tuning from the selection.
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async function pushToTuner() {
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try {
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const lastInstrument = settings.instrument + '-' + settings.string_count; // e.g. guitar-6, bass-4
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// The tuner plugin keys its config by tuning NAME. A custom
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// offset-array tuning has no name, so sync only the instrument and
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// skip lastTuning rather than POST an array the plugin can't parse.
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const body = { lastInstrument };
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if (typeof settings.tuning === 'string') {
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body.lastTuning = settings.tuning;
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}
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await fetch('/api/plugins/tuner/config', {
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method: 'POST', headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify(body),
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});
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if (typeof window._tunerReloadConfig === 'function') await window._tunerReloadConfig();
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} catch (e) { /* tuner plugin may be absent */ }
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}
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function openTuner() {
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// Same action as the plugin's floating "Tuner" button.
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if (window.tuner && typeof window.tuner.toggle === 'function') { window.tuner.toggle(); return; }
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const btn = document.getElementById('tuner-toggle-btn');
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if (btn) btn.click();
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// else: tuner plugin not installed — no-op.
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}
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// ── Live tuner badge helpers ──────────────────────────────────────────--
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let _lastFrame = null;
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// 11-bar heat gradient: index 0 = very flat (dark red), 5 = center (green), 10 = very sharp (dark red).
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// Each step = 5 cents; range ±25 cents.
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const _SEG_BASE = [
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'bg-red-900', // 0 –25 cents
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'bg-red-700', // 1 –20 cents
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'bg-orange-600', // 2 –15 cents
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'bg-yellow-600', // 3 –10 cents
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'bg-emerald-700', // 4 –5 cents
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'bg-emerald-700', // 5 0 cents (center)
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'bg-emerald-700', // 6 +5 cents
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'bg-yellow-600', // 7 +10 cents
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'bg-orange-600', // 8 +15 cents
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'bg-red-700', // 9 +20 cents
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'bg-red-900', // 10 +25 cents
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];
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function _segActiveClass(i) {
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if (i === 5) return 'bg-emerald-400 shadow-[0_0_10px_3px_rgba(52,211,153,0.95)]';
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if (i === 4 || i === 6) return 'bg-emerald-500 shadow-[0_0_8px_2px_rgba(52,211,153,0.85)]';
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if (i === 3 || i === 7) return 'bg-yellow-400 shadow-[0_0_8px_2px_rgba(234,179,8,0.9)]';
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if (i === 2 || i === 8) return 'bg-orange-500 shadow-[0_0_6px_2px_rgba(249,115,22,0.85)]';
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if (i === 1 || i === 9) return 'bg-red-500 shadow-[0_0_6px_2px_rgba(239,68,68,0.8)]';
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return 'bg-red-700 shadow-[0_0_4px_1px_rgba(185,28,28,0.7)]'; // 0 or 10
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}
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// Returns true when the tuning name implies flat notation (mirrors tuning-utils.js).
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function _preferFlats(tuningName) {
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return typeof tuningName === 'string' && /\b[A-G]b\b/.test(tuningName);
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}
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// Compute nearest chromatic note + cents deviation from raw freq (always free-tune).
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function _freeTuneCents(freq, useFlats, referencePitch) {
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if (!freq || freq <= 0) return { note: '—', cents: 0 };
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const ref = (referencePitch > 0 && isFinite(referencePitch)) ? referencePitch : 440;
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const midi = 69 + 12 * Math.log2(freq / ref);
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const rounded = Math.round(midi);
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const cents = Math.round((midi - rounded) * 100);
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const sharps = ['C','C#','D','D#','E','F','F#','G','G#','A','A#','B'];
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const flats = ['C','Db','D','Eb', 'E','F','Gb','G','Ab','A','Bb', 'B'];
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return { note: (useFlats ? flats : sharps)[((rounded % 12) + 12) % 12], cents };
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}
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function _applyFrame(frame) {
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const host = document.getElementById('v3-badge-tuner');
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if (!host) return;
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const noteEl = host.querySelector('[data-tuner-note]');
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const hzEl = host.querySelector('[data-tuner-hz]');
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const segs = host.querySelectorAll('[data-tuner-seg]');
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if (!segs.length) return; // skeleton not yet rendered
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if (!frame || !frame.hasSignal) {
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const fallbackNote = typeof settings.tuning === 'string'
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? (TUNING_NOTE[settings.tuning] || 'E')
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: lowStringNote(settings.tuning);
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if (noteEl) noteEl.textContent = fallbackNote;
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if (hzEl) hzEl.textContent = Math.round(settings.reference_pitch || 440) + 'hz';
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segs.forEach((s, i) => { s.className = 'w-5 h-[3px] rounded-full ' + _SEG_BASE[i]; });
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return;
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}
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// Always free-tune: derive note + cents from raw freq, ignoring tuning target.
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const { freq } = frame;
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const { note, cents } = _freeTuneCents(freq, _preferFlats(settings.tuning), settings.reference_pitch);
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if (noteEl) noteEl.textContent = note;
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if (hzEl) hzEl.textContent = Math.round(freq) + 'hz';
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// cents ±25 maps to indices 0–10; centre (0¢) = index 5, sharp (+) = top (0), flat (–) = bottom (10).
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const activeIdx = Math.max(0, Math.min(10, 5 - Math.round(cents / 5)));
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segs.forEach((s, i) => {
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s.className = 'w-5 h-[3px] rounded-full ' + (i === activeIdx ? _segActiveClass(i) : _SEG_BASE[i]);
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});
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}
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// ── Tuner card (Stitch LeftTunerComponent) ────────────────────────────--
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function renderTuner() {
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const host = document.getElementById('v3-badge-tuner');
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if (!host) return;
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const hz = Math.round(settings.reference_pitch || 440);
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const initNote = typeof settings.tuning === 'string'
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? (TUNING_NOTE[settings.tuning] || 'E') : lowStringNote(settings.tuning);
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const seg = (i) => '<div data-tuner-seg="' + i + '" class="w-5 h-[3px] rounded-full ' + _SEG_BASE[i] + '"></div>';
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const meter = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10].map(seg).join('');
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host.innerHTML =
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'<div id="v3-tuner-wrap" class="relative">' +
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'<button type="button" data-open-tuner title="Open tuner" ' +
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'class="bg-fb-card border border-fb-border/50 rounded-2xl h-[92px] w-[96px] shrink-0 px-3 flex items-center gap-3 overflow-hidden hover:ring-1 hover:ring-fb-primary/40 transition">' +
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'<div class="shrink-0 flex flex-col gap-[3px] items-center justify-center">' + meter + '</div>' +
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'<div class="min-w-0 text-white text-center leading-none">' +
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'<div data-tuner-note class="text-2xl font-black italic tracking-tighter leading-none">' + esc(initNote) + '</div>' +
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'<div data-tuner-hz class="text-[9px] text-gray-400 mt-0.5 tracking-wider truncate">' + hz + 'hz</div>' +
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'</div></button>' +
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'</div>';
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host.querySelector('[data-open-tuner]').addEventListener('click', (e) => {
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e.stopPropagation();
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const tunerPanel = document.getElementById('tuner-plugin-ui');
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const tunerIsOpen = tunerPanel && !tunerPanel.classList.contains('hidden');
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if (!tunerIsOpen) {
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// About to open — close the instruments panel first.
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closeInstMenu();
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document.removeEventListener('click', closeInstMenu);
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}
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openTuner();
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});
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_applyFrame(_lastFrame);
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}
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// ── Instrument selector card (Stitch RightInstrumentSelector) ──────────--
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const guitarIcon =
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'<svg class="w-6 h-6 text-white" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true">' +
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'<path d="M21.66 3.34a1.2 1.2 0 0 0-1.7 0l-2.1 2.1-.7-.7a1 1 0 0 0-1.42 1.42l.3.3-6.06 6.05a4.5 4.5 0 1 0 1.42 1.42l6.05-6.06.3.3a1 1 0 0 0 1.42-1.42l-.7-.7 2.1-2.1a1.2 1.2 0 0 0 0-1.7zM7 19a2 2 0 1 1 0-4 2 2 0 0 1 0 4z"/></svg>';
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// Instrument-menu open/close helpers keyed by id (NOT a captured element),
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// so they survive renderInstrument() replacing the menu node. closeInstMenu
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// is a stable named handler so it can be registered/removed across opens.
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function liveInstMenu() {
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const host = document.getElementById('v3-badge-instrument');
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return host ? host.querySelector('[data-inst-menu]') : null;
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}
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function closeInstMenu() { const m = liveInstMenu(); if (m) m.classList.add('hidden'); }
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function openInstMenu() {
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const m = liveInstMenu();
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if (!m) return;
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// Close the tuner panel if it is open so the two panels are mutually exclusive.
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const tunerPanel = document.getElementById('tuner-plugin-ui');
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if (tunerPanel && !tunerPanel.classList.contains('hidden') && window.tuner) {
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window.tuner.disable();
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}
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m.classList.remove('hidden');
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// (Re)register the outside-click closer for whatever the CURRENT menu
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// node is — dedupe first so repeated opens don't stack listeners.
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document.removeEventListener('click', closeInstMenu);
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document.addEventListener('click', closeInstMenu, { once: true });
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}
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function renderInstrument() {
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const host = document.getElementById('v3-badge-instrument');
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if (!host) return;
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host.innerHTML =
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'<div class="relative">' +
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'<button type="button" data-inst-toggle title="Instrument: ' + esc(settings.string_count + '-str ' + tuningLabel()) + '" ' +
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'class="bg-fb-card border border-fb-border/50 rounded-2xl h-[92px] w-16 flex flex-col items-center justify-center gap-2 hover:ring-1 hover:ring-fb-primary/40 transition">' +
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guitarIcon +
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'<svg class="w-4 h-4 text-white" fill="none" stroke="currentColor" stroke-width="3" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" d="m19.5 8.25-7.5 7.5-7.5-7.5"/></svg>' +
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'</button>' +
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'<div data-inst-menu class="hidden absolute right-0 mt-2 w-60 bg-fb-card border border-fb-border/50 rounded-xl shadow-xl p-3 z-50 space-y-3">' +
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instRow('Instrument', ['guitar', 'bass'].map((v) =>
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pill('inst', v, v[0].toUpperCase() + v.slice(1), settings.instrument === v)).join('')) +
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instRow('Strings', STRING_COUNTS[settings.instrument].map((v) =>
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pill('strings', v, v + '', settings.string_count === v)).join('')) +
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'<div><div class="text-[10px] uppercase tracking-wider text-fb-textDim mb-1">Tuning</div>' +
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'<select data-inst-tuning class="w-full bg-gray-800/50 border border-gray-700 rounded-md px-2 py-1.5 text-xs text-fb-text outline-none focus:border-fb-primary">' +
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// An offset-array tuning has no named option — surface it as a
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// disabled, selected 'Custom' entry so the dropdown reflects reality
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// (picking a named tuning still works and replaces the custom one).
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(typeof settings.tuning === 'string' ? '' : '<option selected disabled>Custom</option>') +
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_tuningsForInstrument(settings.instrument, settings.string_count).map((t) => '<option' + (t === settings.tuning ? ' selected' : '') + '>' + esc(t) + '</option>').join('') + '</select></div>' +
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'<div><div class="flex justify-between text-[10px] uppercase tracking-wider text-fb-textDim mb-1"><span>Reference pitch</span><span data-ref-val>' + settings.reference_pitch + ' Hz</span></div>' +
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'<input data-inst-ref type="range" min="430" max="450" step="1" value="' + settings.reference_pitch + '" class="w-full slider-input"></div>' +
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'</div></div>';
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const toggle = host.querySelector('[data-inst-toggle]');
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const menu = host.querySelector('[data-inst-menu]');
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// Open/close via the id-based helpers so the outside-click closer always
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// targets the live menu (renderInstrument may replace this node) and is
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// only armed while the menu is actually open.
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toggle.addEventListener('click', (e) => {
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e.stopPropagation();
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if (menu.classList.contains('hidden')) openInstMenu();
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else { closeInstMenu(); document.removeEventListener('click', closeInstMenu); }
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});
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menu.addEventListener('click', (e) => e.stopPropagation());
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// After a settings change re-renders the menu, re-open the NEW node and
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// re-arm its outside-click closer (openInstMenu re-queries by id).
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const keepOpen = openInstMenu;
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menu.querySelectorAll('[data-pill="inst"]').forEach((b) => b.addEventListener('click', async () => {
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const v = b.getAttribute('data-val');
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const counts = STRING_COUNTS[v];
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// Clamp string_count AND tuning to ones valid for the new
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// instrument, so switching can't persist (and push to the tuner) an
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// unsupported instrument+tuning combo.
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const newSc = counts.includes(settings.string_count) ? settings.string_count : counts[0];
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const tunings = _tuningsForInstrument(v, newSc);
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await saveSettings({
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instrument: v,
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string_count: newSc,
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tuning: tunings.includes(settings.tuning) ? settings.tuning : (tunings[0] || settings.tuning),
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});
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renderInstrument(); keepOpen();
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}));
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menu.querySelectorAll('[data-pill="strings"]').forEach((b) => b.addEventListener('click', async () => {
|
||
await saveSettings({ string_count: Number(b.getAttribute('data-val')) }); renderInstrument(); keepOpen();
|
||
}));
|
||
menu.querySelector('[data-inst-tuning]').addEventListener('change', (e) => saveSettings({ tuning: e.target.value }));
|
||
const ref = menu.querySelector('[data-inst-ref]');
|
||
ref.addEventListener('input', (e) => { menu.querySelector('[data-ref-val]').textContent = e.target.value + ' Hz'; });
|
||
ref.addEventListener('change', (e) => saveSettings({ reference_pitch: Number(e.target.value) }));
|
||
}
|
||
function instRow(label, inner) {
|
||
return '<div><div class="text-[10px] uppercase tracking-wider text-fb-textDim mb-1">' + label + '</div><div class="flex flex-wrap gap-1">' + inner + '</div></div>';
|
||
}
|
||
function pill(group, val, label, active) {
|
||
return '<button type="button" data-pill="' + group + '" data-val="' + val + '" class="px-2 py-1 rounded-md text-xs ' +
|
||
(active ? 'bg-fb-primary text-white' : 'bg-gray-800/50 text-fb-textDim hover:text-fb-text') + '">' + esc(label) + '</button>';
|
||
}
|
||
|
||
window.v3Badges = { reload: async () => { await Promise.all([loadTunings(), loadSettings()]); renderInstrument(); renderTuner(); } };
|
||
|
||
async function boot() {
|
||
await Promise.all([loadTunings(), loadSettings()]);
|
||
renderInstrument();
|
||
renderTuner();
|
||
pushToTuner(); // sync the tuner to the persisted selection on load
|
||
if (sm && sm.on) {
|
||
sm.on('tuner:frame', (e) => {
|
||
_lastFrame = e.detail;
|
||
_applyFrame(e.detail);
|
||
});
|
||
sm.on('tunings:updated', async () => {
|
||
await loadTunings();
|
||
renderInstrument();
|
||
});
|
||
}
|
||
}
|
||
if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', boot, { once: true });
|
||
else boot();
|
||
})();
|