Files
intercept/static/js/core/voice-alerts.js
2026-03-19 09:34:33 +00:00

283 lines
9.8 KiB
JavaScript

/* INTERCEPT Voice Alerts — Web Speech API queue with priority system */
const VoiceAlerts = (function () {
'use strict';
const PRIORITY = { LOW: 0, MEDIUM: 1, HIGH: 2 };
let _enabled = true;
let _muted = false;
let _queue = [];
let _speaking = false;
let _sources = {};
let _streamStartTimer = null;
const STORAGE_KEY = 'intercept-voice-muted';
const CONFIG_KEY = 'intercept-voice-config';
const RATE_MIN = 0.5;
const RATE_MAX = 2.0;
const PITCH_MIN = 0.5;
const PITCH_MAX = 2.0;
// Default config
let _config = {
rate: 1.1,
pitch: 0.9,
voiceName: '',
streams: {
pager: true,
tscm: true,
bluetooth: true,
adsb_military: true,
squawks: true,
},
};
function _toNumberInRange(value, fallback, min, max) {
const n = Number(value);
if (!Number.isFinite(n)) return fallback;
return Math.min(max, Math.max(min, n));
}
function _normalizeConfig() {
_config.rate = _toNumberInRange(_config.rate, 1.1, RATE_MIN, RATE_MAX);
_config.pitch = _toNumberInRange(_config.pitch, 0.9, PITCH_MIN, PITCH_MAX);
_config.voiceName = typeof _config.voiceName === 'string' ? _config.voiceName : '';
}
function _isSpeechSupported() {
return !!(window.speechSynthesis && typeof window.SpeechSynthesisUtterance !== 'undefined');
}
function _showVoiceToast(title, message, type) {
if (typeof window.showAppToast === 'function') {
window.showAppToast(title, message, type || 'warning');
}
}
function _loadConfig() {
_muted = localStorage.getItem(STORAGE_KEY) === 'true';
try {
const stored = localStorage.getItem(CONFIG_KEY);
if (stored) {
const parsed = JSON.parse(stored);
_config.rate = parsed.rate ?? _config.rate;
_config.pitch = parsed.pitch ?? _config.pitch;
_config.voiceName = parsed.voiceName ?? _config.voiceName;
if (parsed.streams) {
Object.assign(_config.streams, parsed.streams);
}
}
} catch (_) {}
_normalizeConfig();
_updateMuteButton();
}
function _updateMuteButton() {
const btn = document.getElementById('voiceMuteBtn');
if (!btn) return;
btn.classList.toggle('voice-muted', _muted);
btn.title = _muted ? 'Unmute voice alerts' : 'Mute voice alerts';
btn.style.opacity = _muted ? '0.4' : '1';
}
function _getVoice() {
if (!_config.voiceName) return null;
const voices = window.speechSynthesis ? speechSynthesis.getVoices() : [];
return voices.find(v => v.name === _config.voiceName) || null;
}
function _createUtterance(text) {
const utt = new SpeechSynthesisUtterance(text);
utt.rate = _toNumberInRange(_config.rate, 1.1, RATE_MIN, RATE_MAX);
utt.pitch = _toNumberInRange(_config.pitch, 0.9, PITCH_MIN, PITCH_MAX);
const voice = _getVoice();
if (voice) utt.voice = voice;
return utt;
}
function speak(text, priority) {
if (priority === undefined) priority = PRIORITY.MEDIUM;
if (!_enabled || _muted) return;
if (!window.speechSynthesis) return;
if (priority === PRIORITY.LOW && _speaking) return;
if (priority === PRIORITY.HIGH && _speaking) {
window.speechSynthesis.cancel();
_queue = [];
_speaking = false;
}
_queue.push({ text, priority });
if (!_speaking) _dequeue();
}
function _dequeue() {
if (_queue.length === 0) { _speaking = false; return; }
_speaking = true;
const item = _queue.shift();
const utt = _createUtterance(item.text);
utt.onend = () => { _speaking = false; _dequeue(); };
utt.onerror = () => { _speaking = false; _dequeue(); };
window.speechSynthesis.speak(utt);
}
function toggleMute() {
_muted = !_muted;
localStorage.setItem(STORAGE_KEY, _muted ? 'true' : 'false');
_updateMuteButton();
if (_muted && window.speechSynthesis) window.speechSynthesis.cancel();
}
function _openStream(url, handler, key) {
if (_sources[key]) return;
const es = new EventSource(url);
es.onmessage = handler;
es.onerror = () => { es.close(); delete _sources[key]; };
_sources[key] = es;
}
function _startStreams() {
if (_streamStartTimer) {
clearTimeout(_streamStartTimer);
_streamStartTimer = null;
}
if (!_enabled) return;
if (Object.keys(_sources).length > 0) return;
// Pager stream
if (_config.streams.pager) {
_openStream('/stream', (ev) => {
try {
const d = JSON.parse(ev.data);
if (d.address && d.message) {
speak(`Pager message to ${d.address}: ${String(d.message).slice(0, 60)}`, PRIORITY.MEDIUM);
}
} catch (_) {}
}, 'pager');
}
// TSCM stream
if (_config.streams.tscm) {
_openStream('/tscm/sweep/stream', (ev) => {
try {
const d = JSON.parse(ev.data);
if (d.threat_level && d.description) {
speak(`TSCM alert: ${d.threat_level}${d.description}`, PRIORITY.HIGH);
}
} catch (_) {}
}, 'tscm');
}
// Bluetooth stream — tracker detection only
if (_config.streams.bluetooth) {
_openStream('/api/bluetooth/stream', (ev) => {
try {
const d = JSON.parse(ev.data);
if (d.service_data && d.service_data.tracker_type) {
speak(`Tracker detected: ${d.service_data.tracker_type}`, PRIORITY.HIGH);
}
} catch (_) {}
}, 'bluetooth');
}
}
function _stopStreams() {
if (_streamStartTimer) {
clearTimeout(_streamStartTimer);
_streamStartTimer = null;
}
Object.values(_sources).forEach(es => { try { es.close(); } catch (_) {} });
_sources = {};
}
function init(options) {
const opts = options || {};
_loadConfig();
if (_isSpeechSupported()) {
// Prime voices list early so user-triggered test calls are less likely to be silent.
speechSynthesis.getVoices();
}
if (opts.startStreams !== false) {
_startStreams();
}
}
function scheduleStreamStart(delayMs) {
if (_streamStartTimer || Object.keys(_sources).length > 0 || !_enabled) return;
_streamStartTimer = window.setTimeout(() => {
_streamStartTimer = null;
_startStreams();
}, Number(delayMs) > 0 ? Number(delayMs) : 20000);
}
function setEnabled(val) {
_enabled = val;
if (!val) {
_stopStreams();
if (window.speechSynthesis) window.speechSynthesis.cancel();
} else {
_startStreams();
}
}
// ── Config API (used by Ops Center voice config panel) ─────────────
function getConfig() {
return JSON.parse(JSON.stringify(_config));
}
function setConfig(cfg) {
if (cfg.rate !== undefined) _config.rate = _toNumberInRange(cfg.rate, _config.rate, RATE_MIN, RATE_MAX);
if (cfg.pitch !== undefined) _config.pitch = _toNumberInRange(cfg.pitch, _config.pitch, PITCH_MIN, PITCH_MAX);
if (cfg.voiceName !== undefined) _config.voiceName = cfg.voiceName;
if (cfg.streams) Object.assign(_config.streams, cfg.streams);
_normalizeConfig();
localStorage.setItem(CONFIG_KEY, JSON.stringify(_config));
// Restart streams to apply per-stream toggle changes
_stopStreams();
_startStreams();
}
function getAvailableVoices() {
return new Promise(resolve => {
if (!window.speechSynthesis) { resolve([]); return; }
let voices = speechSynthesis.getVoices();
if (voices.length > 0) { resolve(voices); return; }
speechSynthesis.onvoiceschanged = () => {
resolve(speechSynthesis.getVoices());
};
// Timeout fallback
setTimeout(() => resolve(speechSynthesis.getVoices()), 500);
});
}
function testVoice(text) {
if (!_isSpeechSupported()) {
_showVoiceToast('Voice Unavailable', 'This browser does not support speech synthesis.', 'warning');
return;
}
// Make the test immediate and recover from a paused/stalled synthesis engine.
try {
speechSynthesis.getVoices();
if (speechSynthesis.paused) speechSynthesis.resume();
speechSynthesis.cancel();
} catch (_) {}
const utt = _createUtterance(text || 'Voice alert test. All systems nominal.');
let started = false;
utt.onstart = () => { started = true; };
utt.onerror = () => {
_showVoiceToast('Voice Test Failed', 'Speech synthesis failed to start. Check browser audio output.', 'warning');
};
speechSynthesis.speak(utt);
window.setTimeout(() => {
if (!started && !speechSynthesis.speaking && !speechSynthesis.pending) {
_showVoiceToast('No Voice Output', 'Test speech did not play. Verify browser audio and selected voice.', 'warning');
}
}, 1200);
}
return { init, scheduleStreamStart, speak, toggleMute, setEnabled, getConfig, setConfig, getAvailableVoices, testVoice, PRIORITY };
})();
window.VoiceAlerts = VoiceAlerts;