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ai-video-fullstack/scripts/copilot-native.js
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// ==UserScript==
// @name 12345 AI Native Track Copilot
// @namespace http://tampermonkey.net/
// @version 1.0
// @description Native-track only bridge: no WebAudio washing, no captureStream, no MediaStreamDestination.
// @author You
// @match *://yhy-yw.22sj.cn:*/*
// @grant none
// @run-at document-start
// ==/UserScript==
(function () {
'use strict';
const DEFAULT_SIGNALING_URL = 'ws://182.92.86.220:8000/ws/voice';
const AUDIO_UPLINK_STORAGE_KEY = 'native-copilot-send-audio';
const VIDEO_UPLINK_STORAGE_KEY = 'native-copilot-send-video';
const originalGetUserMedia = navigator.mediaDevices?.getUserMedia?.bind(navigator.mediaDevices);
const originalAddEventListener = RTCPeerConnection.prototype.addEventListener;
const originalAddTrack = RTCPeerConnection.prototype.addTrack;
const originalAddTransceiver = RTCPeerConnection.prototype.addTransceiver;
const originalSetRemoteDescription = RTCPeerConnection.prototype.setRemoteDescription;
const mediaSrcObjectDescriptor = Object.getOwnPropertyDescriptor(HTMLMediaElement.prototype, 'srcObject');
const remoteStreams = new Set();
const ignoredTrackIds = new Set();
const audioCandidates = new Map();
const videoCandidates = new Map();
const businessSenderCandidates = new Map();
const localCaptureTrackIds = new Set();
window.__aiNativeCopilotReceivers = window.__aiNativeCopilotReceivers || new Set();
let aiPc = null;
let aiWs = null;
let aiDc = null;
let aiAudioSender = null;
let aiVideoSender = null;
let businessAudioSender = null;
let businessOriginalAudioTrack = null;
let remoteUserAudioTrack = null;
let remoteUserVideoTrack = null;
let aiResponseAudioTrack = null;
let remoteUserAudioLocked = false;
let remoteUserVideoLocked = false;
let isAiTakeover = false;
let aiTrackAttachedToBusiness = false;
let inputVuLevel = 0;
let aiOutVuLevel = 0;
let aiInputHealthTimer = null;
let aiOutputHealthTimer = null;
let assistantLine = null;
let assistantBuffer = '';
let inputRecorder = null;
let inputRecordingChunks = [];
let inputRecordingTrack = null;
let inputRecordingStartedAt = 0;
let videoRecorder = null;
let videoRecordingChunks = [];
let videoRecordingTrack = null;
let videoRecordingStartedAt = 0;
const receiverStatsMemory = new Map();
const senderStatsMemory = new Map();
const inboundStatsMemory = new Map();
const outboundStatsMemory = new Map();
const businessOutboundStats = {
bytesSent: 0,
packetsSent: 0,
bytesDelta: 0,
packetsDelta: 0,
};
function log(message) {
console.log(`[AI Native Copilot] ${message}`);
}
function readBoolSetting(key, fallback) {
try {
const value = localStorage.getItem(key);
if (value === null) return fallback;
return value === 'true';
} catch {
return fallback;
}
}
function writeBoolSetting(key, value) {
try {
localStorage.setItem(key, value ? 'true' : 'false');
} catch {
// Keep the live checkbox state even if storage is unavailable.
}
}
function shouldSendAudioToAi() {
return readBoolSetting(AUDIO_UPLINK_STORAGE_KEY, true);
}
function shouldSendVideoToAi() {
return readBoolSetting(VIDEO_UPLINK_STORAGE_KEY, true);
}
function appendChatLine(role, text, important = false) {
const box = document.getElementById('native-copilot-log');
if (!box) return;
if (box.children.length === 1 && box.children[0].dataset.placeholder) box.innerHTML = '';
const row = document.createElement('div');
row.textContent = `[${new Date().toLocaleTimeString([], { hour12: false })}] ${role}: ${text}`;
row.style.marginBottom = '4px';
if (important) row.style.color = '#fcd34d';
box.appendChild(row);
while (box.children.length > 120) box.removeChild(box.firstChild);
box.scrollTop = box.scrollHeight;
return row;
}
function startAssistantLine() {
assistantBuffer = '';
assistantLine = null;
}
function appendAssistantDelta(delta) {
if (!delta) return;
const box = document.getElementById('native-copilot-log');
if (!box) {
console.log(`[AI Native Copilot] AI: ${delta}`);
return;
}
if (box.children.length === 1 && box.children[0].dataset.placeholder) box.innerHTML = '';
if (!assistantLine) assistantLine = appendChatLine('AI', '');
assistantBuffer += delta;
assistantLine.textContent = `[${new Date().toLocaleTimeString([], { hour12: false })}] AI: ${assistantBuffer}`;
box.scrollTop = box.scrollHeight;
}
function finishAssistantLine() {
assistantLine = null;
assistantBuffer = '';
}
function logUserTranscript(text) {
if (!text?.trim()) return;
finishAssistantLine();
appendChatLine('用户', text.trim(), true);
}
function recorderMimeType() {
if (window.MediaRecorder?.isTypeSupported?.('audio/webm;codecs=opus')) return 'audio/webm;codecs=opus';
if (window.MediaRecorder?.isTypeSupported?.('audio/webm')) return 'audio/webm';
return '';
}
function recordingFileName(track) {
const stamp = new Date().toISOString().replace(/[:.]/g, '-');
const trackPart = track?.id ? track.id.slice(0, 8) : 'no-track';
return `native-ai-input-${trackPart}-${stamp}.webm`;
}
function videoRecordingFileName(track) {
const stamp = new Date().toISOString().replace(/[:.]/g, '-');
const trackPart = track?.id ? track.id.slice(0, 8) : 'no-track';
return `native-ai-video-${trackPart}-${stamp}.webm`;
}
function updateRecordButton() {
const button = document.getElementById('native-copilot-record');
if (!button) return;
const recording = inputRecorder?.state === 'recording';
button.textContent = recording ? '停止录制 AI 输入' : '录制 AI 输入';
button.style.background = recording ? '#dc2626' : '#2563eb';
}
function videoRecorderMimeType() {
if (window.MediaRecorder?.isTypeSupported?.('video/webm;codecs=vp8')) return 'video/webm;codecs=vp8';
if (window.MediaRecorder?.isTypeSupported?.('video/webm')) return 'video/webm';
return '';
}
function updateVideoRecordButton() {
const button = document.getElementById('native-copilot-record-video');
if (!button) return;
const recording = videoRecorder?.state === 'recording';
button.textContent = recording ? '停止录制 AI 视频' : '录制 AI 视频';
button.style.background = recording ? '#dc2626' : '#475569';
}
async function startInputRecording() {
if (inputRecorder?.state === 'recording') return;
chooseRemoteAudioTrack('record');
if (!isUsableTrack(remoteUserAudioTrack)) {
appendChatLine('录音', '没有可录制的 AI 输入音轨', true);
return;
}
if (!window.MediaRecorder) {
appendChatLine('录音', '当前浏览器不支持 MediaRecorder', true);
return;
}
inputRecordingChunks = [];
inputRecordingTrack = remoteUserAudioTrack;
inputRecordingStartedAt = Date.now();
const stream = new MediaStream([inputRecordingTrack]);
const mimeType = recorderMimeType();
inputRecorder = new MediaRecorder(stream, mimeType ? { mimeType } : undefined);
inputRecorder.ondataavailable = (event) => {
if (event.data?.size > 0) inputRecordingChunks.push(event.data);
};
inputRecorder.onstop = () => {
const blob = new Blob(inputRecordingChunks, { type: inputRecorder?.mimeType || 'audio/webm' });
const url = URL.createObjectURL(blob);
const link = document.createElement('a');
link.href = url;
link.download = recordingFileName(inputRecordingTrack);
document.body.appendChild(link);
link.click();
link.remove();
setTimeout(() => URL.revokeObjectURL(url), 30000);
const seconds = ((Date.now() - inputRecordingStartedAt) / 1000).toFixed(1);
appendChatLine('录音', `已保存 ${link.download}(${seconds}s,${(blob.size / 1024).toFixed(1)} KB)`, true);
inputRecorder = null;
inputRecordingChunks = [];
inputRecordingTrack = null;
updateRecordButton();
};
inputRecorder.start(250);
appendChatLine('录音', `开始录制 AI 输入:${describeTrack(inputRecordingTrack)}`, true);
updateRecordButton();
}
function stopInputRecording() {
if (inputRecorder?.state === 'recording') inputRecorder.stop();
}
function toggleInputRecording() {
if (inputRecorder?.state === 'recording') stopInputRecording();
else startInputRecording();
}
async function startVideoRecording() {
if (videoRecorder?.state === 'recording') return;
chooseRemoteVideoTrack('record-video');
if (!remoteUserVideoLocked || !isUsableTrack(remoteUserVideoTrack)) {
appendChatLine('录制视频', '没有可录制的上半部用户视频轨', true);
return;
}
if (!window.MediaRecorder) {
appendChatLine('录制视频', '当前浏览器不支持 MediaRecorder', true);
return;
}
videoRecordingChunks = [];
videoRecordingTrack = remoteUserVideoTrack;
videoRecordingStartedAt = Date.now();
const stream = new MediaStream([videoRecordingTrack]);
const mimeType = videoRecorderMimeType();
videoRecorder = new MediaRecorder(stream, mimeType ? { mimeType } : undefined);
videoRecorder.ondataavailable = (event) => {
if (event.data?.size > 0) videoRecordingChunks.push(event.data);
};
videoRecorder.onstop = () => {
const blob = new Blob(videoRecordingChunks, { type: videoRecorder?.mimeType || 'video/webm' });
const url = URL.createObjectURL(blob);
const link = document.createElement('a');
link.href = url;
link.download = videoRecordingFileName(videoRecordingTrack);
document.body.appendChild(link);
link.click();
link.remove();
setTimeout(() => URL.revokeObjectURL(url), 30000);
const seconds = ((Date.now() - videoRecordingStartedAt) / 1000).toFixed(1);
appendChatLine('录制视频', `已保存 ${link.download}(${seconds}s,${(blob.size / 1024).toFixed(1)} KB)`, true);
videoRecorder = null;
videoRecordingChunks = [];
videoRecordingTrack = null;
updateVideoRecordButton();
};
videoRecorder.start(250);
appendChatLine('录制视频', `开始录制 AI 视频:${describeTrack(videoRecordingTrack)}`, true);
updateVideoRecordButton();
}
function stopVideoRecording() {
if (videoRecorder?.state === 'recording') videoRecorder.stop();
}
function toggleVideoRecording() {
if (videoRecorder?.state === 'recording') stopVideoRecording();
else startVideoRecording();
}
function generatePcId() {
const bytes = new Uint8Array(16);
crypto.getRandomValues(bytes);
return 'PC-' + Array.from(bytes).map((b) => b.toString(16).padStart(2, '0')).join('');
}
function isInternalPc(pc) {
return Boolean(pc?.__aiNativeCopilotInternal);
}
function isUsableTrack(track) {
return track && track.readyState === 'live' && !ignoredTrackIds.has(track.id);
}
function isLiveTrack(track) {
return track && track.readyState === 'live';
}
function candidateFor(track, candidates) {
let candidate = candidates.get(track.id);
if (!candidate) {
candidate = {
track,
receiver: null,
reasons: new Set(),
elements: new Set(),
firstSeenAt: Date.now(),
lastSeenAt: 0,
lastPacketAt: 0,
bytesReceived: 0,
packetsReceived: 0,
bytesDelta: 0,
packetsDelta: 0,
level: 0,
score: 0,
logged: false,
};
candidates.set(track.id, candidate);
}
candidate.track = track;
candidate.lastSeenAt = Date.now();
return candidate;
}
function businessSenderCandidateFor(sender, track, reason) {
if (!sender) return null;
const senderTrack = track || sender.track;
if (senderTrack && senderTrack.kind !== 'audio') return null;
const id = sender.__aiNativeCopilotBusinessSenderId || `business-sender-${businessSenderCandidates.size + 1}`;
sender.__aiNativeCopilotBusinessSenderId = id;
let candidate = businessSenderCandidates.get(id);
if (!candidate) {
candidate = {
id,
sender,
track: senderTrack || null,
originalTrack: senderTrack || null,
sources: new Set(),
bytesSent: 0,
packetsSent: 0,
bytesDelta: 0,
packetsDelta: 0,
score: 0,
logged: false,
};
businessSenderCandidates.set(id, candidate);
}
candidate.sender = sender;
candidate.track = senderTrack || sender.track || candidate.track;
if (!isAiTakeover && senderTrack && senderTrack !== aiResponseAudioTrack) {
candidate.originalTrack = senderTrack;
}
candidate.sources.add(reason);
wrapBusinessSender(sender);
return candidate;
}
function findReceiverForTrack(track) {
if (!track) return null;
return Array.from(window.__aiNativeCopilotReceivers || [])
.find((receiver) => receiver.track === track) || null;
}
function rememberReceiver(receiver, reason) {
if (!receiver?.track || isInternalPc(receiver.transport)) return;
window.__aiNativeCopilotReceivers.add(receiver);
const track = receiver.track;
if (!isUsableTrack(track)) return;
if (track.kind === 'audio') {
const candidate = candidateFor(track, audioCandidates);
candidate.receiver = receiver;
candidate.reasons.add(reason);
} else if (track.kind === 'video') {
const candidate = candidateFor(track, videoCandidates);
candidate.receiver = receiver;
candidate.reasons.add(reason);
chooseRemoteVideoTrack(reason);
}
}
function setVuWidth(id, level) {
const el = document.getElementById(id);
if (!el) return;
el.style.width = `${Math.min(100, level * 2500)}%`;
}
function renderVu() {
inputVuLevel *= 0.88;
aiOutVuLevel *= 0.88;
setVuWidth('native-copilot-input-vu', inputVuLevel);
setVuWidth('native-copilot-ai-vu', aiOutVuLevel);
requestAnimationFrame(renderVu);
}
function levelFromStats(stat, memory) {
let level = typeof stat.audioLevel === 'number' ? stat.audioLevel : 0;
if (typeof stat.totalAudioEnergy === 'number' && typeof stat.totalSamplesDuration === 'number') {
const prev = memory.get(stat.id);
memory.set(stat.id, {
energy: stat.totalAudioEnergy,
duration: stat.totalSamplesDuration,
});
if (prev) {
const energyDelta = stat.totalAudioEnergy - prev.energy;
const durationDelta = stat.totalSamplesDuration - prev.duration;
if (energyDelta > 0 && durationDelta > 0) {
level = Math.max(level, Math.sqrt(energyDelta / durationDelta));
}
}
}
return level;
}
async function refreshVuFromStats() {
try {
if (!(await checkLockedUserTracks('stats-before'))) return;
await refreshAudioCandidateStats();
chooseRemoteAudioTrack('stats');
await refreshBusinessSenderStats();
chooseBusinessAudioSender('stats');
await checkLockedUserTracks('stats-after');
} catch (error) {
// Stats APIs are best-effort across browsers.
}
}
async function refreshBusinessSenderStats() {
for (const candidate of businessSenderCandidates.values()) {
const sender = candidate.sender;
if (!sender?.getStats) continue;
candidate.track = sender.track || candidate.track;
const report = await sender.getStats();
report.forEach((stat) => {
const kind = stat.kind || stat.mediaType;
if (stat.type !== 'outbound-rtp' || kind !== 'audio') return;
const key = `${candidate.id}:${stat.id}`;
const prev = outboundStatsMemory.get(key);
const bytes = typeof stat.bytesSent === 'number' ? stat.bytesSent : 0;
const packets = typeof stat.packetsSent === 'number' ? stat.packetsSent : 0;
candidate.bytesDelta = prev ? Math.max(0, bytes - prev.bytes) : 0;
candidate.packetsDelta = prev ? Math.max(0, packets - prev.packets) : 0;
candidate.bytesSent = bytes;
candidate.packetsSent = packets;
outboundStatsMemory.set(key, { bytes, packets });
if (candidate.sender === businessAudioSender) {
businessOutboundStats.bytesDelta = candidate.bytesDelta;
businessOutboundStats.packetsDelta = candidate.packetsDelta;
businessOutboundStats.bytesSent = candidate.bytesSent;
businessOutboundStats.packetsSent = candidate.packetsSent;
aiOutVuLevel = Math.max(
aiOutVuLevel,
levelFromStats(stat, senderStatsMemory),
outputVuLevelFromStats()
);
}
});
}
}
async function refreshAudioCandidateStats() {
for (const candidate of audioCandidates.values()) {
if (!isUsableTrack(candidate.track)) continue;
const receiver = candidate.receiver || findReceiverForTrack(candidate.track);
if (!receiver?.getStats) continue;
candidate.receiver = receiver;
const report = await receiver.getStats();
report.forEach((stat) => {
const kind = stat.kind || stat.mediaType;
if (stat.type !== 'inbound-rtp' || kind !== 'audio') return;
const prev = inboundStatsMemory.get(stat.id);
const bytes = typeof stat.bytesReceived === 'number' ? stat.bytesReceived : 0;
const packets = typeof stat.packetsReceived === 'number' ? stat.packetsReceived : 0;
const bytesDelta = prev ? Math.max(0, bytes - prev.bytes) : 0;
const packetsDelta = prev ? Math.max(0, packets - prev.packets) : 0;
inboundStatsMemory.set(stat.id, { bytes, packets });
candidate.bytesReceived = bytes;
candidate.packetsReceived = packets;
candidate.bytesDelta = bytesDelta;
candidate.packetsDelta = packetsDelta;
candidate.level = levelFromStats(stat, receiverStatsMemory);
if (bytesDelta > 0 || packetsDelta > 0 || candidate.level > 0) {
candidate.lastPacketAt = Date.now();
}
if (candidate.track === remoteUserAudioTrack) {
inputVuLevel = Math.max(inputVuLevel, inputVuLevelFromCandidate(candidate));
}
});
}
}
async function outboundAudioBytes(sender) {
if (!sender?.getStats) return null;
try {
let total = 0;
const report = await sender.getStats();
report.forEach((stat) => {
const kind = stat.kind || stat.mediaType;
if (stat.type === 'outbound-rtp' && kind === 'audio' && typeof stat.bytesSent === 'number') {
total += stat.bytesSent;
}
});
return total;
} catch {
return null;
}
}
function aiReadyForMedia() {
if (!aiPc || !aiPc.remoteDescription) return false;
return (
aiPc.connectionState === 'connected'
|| aiPc.iceConnectionState === 'connected'
|| aiPc.iceConnectionState === 'completed'
);
}
function aiStateLabel() {
if (!aiPc) return 'pc=null';
return `conn=${aiPc.connectionState},ice=${aiPc.iceConnectionState},signaling=${aiPc.signalingState},remote=${aiPc.remoteDescription?.type || 'none'}`;
}
function waitForAiMediaReady(timeoutMs = 10000) {
if (aiReadyForMedia()) return Promise.resolve(true);
return new Promise((resolve) => {
const startedAt = Date.now();
const timer = setInterval(() => {
if (aiReadyForMedia()) {
clearInterval(timer);
resolve(true);
} else if (Date.now() - startedAt >= timeoutMs) {
clearInterval(timer);
resolve(false);
}
}, 250);
});
}
function scheduleAiInputHealthCheck(track) {
if (aiInputHealthTimer) clearTimeout(aiInputHealthTimer);
aiInputHealthTimer = setTimeout(async () => {
if (!aiAudioSender || aiAudioSender.track !== track) return;
log(`checking native AI input after media connects: ${aiStateLabel()}`);
const ready = await waitForAiMediaReady(10000);
if (!ready || !aiAudioSender || aiAudioSender.track !== track) {
log(`native AI input could not be verified: ${aiStateLabel()}`);
return;
}
const before = await outboundAudioBytes(aiAudioSender);
await new Promise((resolve) => setTimeout(resolve, 2500));
if (!aiAudioSender || aiAudioSender.track !== track) return;
const after = await outboundAudioBytes(aiAudioSender);
log(`native AI input packet check: before=${before}, after=${after}, ${aiStateLabel()}`, true);
}, 500);
}
function describeTrack(track) {
if (!track) return 'none';
return `${track.id}${track.muted ? ' muted' : ''}`;
}
function elementLayoutInfo(element) {
if (!element?.getBoundingClientRect || !document.documentElement.contains(element)) return null;
const rect = element.getBoundingClientRect();
const viewportHeight = window.innerHeight || document.documentElement.clientHeight || 1;
const centerY = rect.top + rect.height / 2;
const visibleWidth = Math.max(0, Math.min(rect.right, window.innerWidth || document.documentElement.clientWidth || rect.right) - Math.max(rect.left, 0));
const visibleHeight = Math.max(0, Math.min(rect.bottom, viewportHeight) - Math.max(rect.top, 0));
return {
tag: element.tagName,
top: Math.round(rect.top),
left: Math.round(rect.left),
width: Math.round(rect.width),
height: Math.round(rect.height),
centerY: Math.round(centerY),
upperHalf: centerY <= viewportHeight * 0.55,
visibleArea: Math.round(visibleWidth * visibleHeight),
paused: Boolean(element.paused),
muted: Boolean(element.muted),
volume: typeof element.volume === 'number' ? element.volume : null,
};
}
function candidateLayoutScore(candidate) {
let score = 0;
for (const element of candidate?.elements || []) {
const info = elementLayoutInfo(element);
if (!info) continue;
if (info.upperHalf) score += 9000;
else score -= 2500;
if (info.visibleArea > 0) score += Math.min(2500, info.visibleArea / 80);
if (info.tag === 'VIDEO') score += 1200;
if (info.tag === 'AUDIO') score += 300;
if (!info.paused) score += 700;
if (!info.muted && (info.volume ?? 1) > 0) score += 500;
}
return score;
}
function hasUpperHalfElement(candidate) {
return Array.from(candidate?.elements || []).some((element) => elementLayoutInfo(element)?.upperHalf);
}
function lockedTrackUsable(track, candidates) {
const candidate = candidates.get(track?.id);
return Boolean(candidate && isUsableTrack(candidate.track) && !candidate.track.muted);
}
async function handleLockedUserTrackLost(kind, reason) {
const message = `${kind === 'audio' ? '远端音频' : '远端视频'}轨道失效(${reason}),已断开 AI`;
appendChatLine('选轨', message, true);
log(message);
if (kind === 'audio') {
remoteUserAudioLocked = false;
remoteUserAudioTrack = null;
} else {
remoteUserVideoLocked = false;
remoteUserVideoTrack = null;
}
if (isAiTakeover) {
isAiTakeover = false;
updateModeButton();
await restoreBusinessAudio();
disconnectAi();
}
}
async function checkLockedUserTracks(reason) {
if (remoteUserAudioLocked && !lockedTrackUsable(remoteUserAudioTrack, audioCandidates)) {
await handleLockedUserTrackLost('audio', reason);
return false;
}
if (remoteUserVideoLocked && !lockedTrackUsable(remoteUserVideoTrack, videoCandidates)) {
await handleLockedUserTrackLost('video', reason);
return false;
}
return true;
}
function scoreAudioCandidate(candidate) {
if (!candidate || !isUsableTrack(candidate.track)) return -1;
const hasRecentPackets = Date.now() - candidate.lastPacketAt < 3000;
const hasAudibleLevel = candidate.level >= 0.0015;
let score = 0;
if (candidate.track.muted) score -= 5000;
else score += 800;
score += candidateLayoutScore(candidate);
if (candidate.receiver) score += 600;
if (candidate.bytesReceived > 0) score += 100;
if (candidate.bytesDelta > 0) score += 500 + Math.min(900, candidate.bytesDelta * 2);
if (candidate.packetsDelta > 0) score += 300 + Math.min(500, candidate.packetsDelta * 8);
if (hasRecentPackets) score += 400;
if (hasAudibleLevel) score += 5000;
score += Math.min(12000, candidate.level * 900000);
if (!hasAudibleLevel && hasRecentPackets) score -= 1800;
if (candidate.reasons.has('media-srcObject') || candidate.reasons.has('media-scan')) score += 80;
return score;
}
function scoreVideoCandidate(candidate) {
if (!candidate || !isUsableTrack(candidate.track)) return -1;
let score = 0;
if (candidate.track.muted) score -= 1000;
else score += 500;
if (candidate.receiver) score += 600;
score += candidateLayoutScore(candidate);
for (const element of candidate.elements || []) {
const info = elementLayoutInfo(element);
if (!info) continue;
if (info.tag === 'VIDEO') score += 2500;
if (info.visibleArea > 0) score += Math.min(4000, info.visibleArea / 50);
}
if (candidate.reasons.has('media-srcObject') || candidate.reasons.has('media-scan')) score += 100;
return score;
}
function inputVuLevelFromCandidate(candidate) {
if (!candidate) return 0;
return Math.max(
candidate.level,
Math.min(0.04, candidate.bytesDelta / 16000),
Math.min(0.02, candidate.packetsDelta / 800)
);
}
function updateSelectedInputLabel() {
const label = document.getElementById('native-copilot-selected-input');
if (!label) return;
const candidate = audioCandidates.get(remoteUserAudioTrack?.id);
if (!candidate) {
label.textContent = '等待远端音轨';
return;
}
const layout = Array.from(candidate.elements || []).map(elementLayoutInfo).find(Boolean);
const where = layout ? (layout.upperHalf ? 'upper' : 'lower') : 'no-layout';
label.textContent = `${remoteUserAudioTrack.id.slice(0, 8)} ${where} level=${candidate.level.toFixed(4)} score=${Math.round(candidate.score || scoreAudioCandidate(candidate))}`;
}
function outputVuLevelFromStats() {
return Math.max(
Math.min(0.12, businessOutboundStats.bytesDelta / 12000),
Math.min(0.04, businessOutboundStats.packetsDelta / 500)
);
}
function isKnownRemoteAudioTrack(track) {
return Boolean(track && (
track === remoteUserAudioTrack
|| audioCandidates.has(track.id)
));
}
function isAiOutputTrack(track) {
return Boolean(track && track === aiResponseAudioTrack);
}
function scoreBusinessSenderCandidate(candidate) {
if (!candidate?.sender) return -1;
const track = candidate.sender.track || candidate.track;
let score = 0;
if (track?.kind === 'audio') score += 500;
else if (!track) score -= 1000;
if (track?.readyState === 'live') score += 700;
if (track && !track.muted) score += 300;
if (candidate.sources.has('pc-addTrack')) score += 5000;
if (candidate.sources.has('pc-addTransceiver')) score -= 1000;
if (track && localCaptureTrackIds.has(track.id)) score += 2500;
if (candidate.originalTrack && localCaptureTrackIds.has(candidate.originalTrack.id)) score += 2500;
if (isKnownRemoteAudioTrack(track)) score -= 9000;
if (candidate.originalTrack && isKnownRemoteAudioTrack(candidate.originalTrack)) score -= 9000;
if (isAiOutputTrack(track)) score += 4500;
if (candidate.bytesSent > 0) score += 600;
if (candidate.bytesDelta > 0) score += 1600 + Math.min(1800, candidate.bytesDelta * 4);
if (candidate.packetsDelta > 0) score += 800 + Math.min(900, candidate.packetsDelta * 10);
return score;
}
function chooseBusinessAudioSender(reason) {
let best = null;
let bestScore = -1;
for (const candidate of businessSenderCandidates.values()) {
candidate.score = scoreBusinessSenderCandidate(candidate);
if (candidate.score > bestScore) {
best = candidate;
bestScore = candidate.score;
}
}
if (!best || bestScore < 0) return false;
if (businessAudioSender === best.sender) return true;
businessAudioSender = best.sender;
businessOriginalAudioTrack = best.originalTrack || best.sender.track || businessOriginalAudioTrack;
log(`selected business audio sender (${reason}): ${best.id}, track=${describeTrack(best.sender.track)}, score=${Math.round(bestScore)}, sources=${Array.from(best.sources).join('+')}`, true);
attachAiOutputToBusiness();
return true;
}
function chooseRemoteAudioTrack(reason) {
const lockedAudio = audioCandidates.get(remoteUserAudioTrack?.id);
if (remoteUserAudioLocked && lockedAudio && isUsableTrack(lockedAudio.track) && !lockedAudio.track.muted) {
updateSelectedInputLabel();
return true;
}
if (remoteUserAudioLocked) return false;
let best = null;
let bestScore = -1;
for (const candidate of audioCandidates.values()) {
candidate.score = scoreAudioCandidate(candidate);
if (candidate.score > bestScore) {
best = candidate;
bestScore = candidate.score;
}
}
if (!best || bestScore < 0) return false;
if (remoteUserAudioTrack === best.track) {
updateSelectedInputLabel();
return true;
}
const current = audioCandidates.get(remoteUserAudioTrack?.id);
const currentScore = scoreAudioCandidate(current);
const currentHealthy = current && isUsableTrack(current.track) && !current.track.muted
&& (current.level >= 0.0015 || hasUpperHalfElement(current))
&& Date.now() - current.lastPacketAt < 3000;
if (currentHealthy && bestScore < currentScore + 1800) {
updateSelectedInputLabel();
return true;
}
remoteUserAudioTrack = best.track;
remoteUserAudioLocked = hasUpperHalfElement(best);
log(`${remoteUserAudioLocked ? 'locked' : 'selected'} remote audio track (${reason}): ${describeTrack(best.track)}, score=${Math.round(bestScore)}, level=${best.level.toFixed(4)}, bytesDelta=${best.bytesDelta}, packetsDelta=${best.packetsDelta}`, true);
updateSelectedInputLabel();
attachRemoteInputToAi();
return true;
}
function chooseRemoteVideoTrack(reason) {
const lockedVideo = videoCandidates.get(remoteUserVideoTrack?.id);
if (remoteUserVideoLocked && lockedVideo && isUsableTrack(lockedVideo.track) && !lockedVideo.track.muted) {
return true;
}
if (remoteUserVideoLocked) return false;
let best = null;
let bestScore = -1;
for (const candidate of videoCandidates.values()) {
candidate.score = scoreVideoCandidate(candidate);
if (candidate.score > bestScore) {
best = candidate;
bestScore = candidate.score;
}
}
if (!best || bestScore < 0) return false;
if (remoteUserVideoTrack === best.track) return true;
const current = videoCandidates.get(remoteUserVideoTrack?.id);
const currentScore = scoreVideoCandidate(current);
if (hasUpperHalfElement(current) && bestScore < currentScore + 1800) return true;
remoteUserVideoTrack = best.track;
remoteUserVideoLocked = hasUpperHalfElement(best);
log(`${remoteUserVideoLocked ? 'locked' : 'selected'} remote video track (${reason}): ${describeTrack(best.track)}, score=${Math.round(bestScore)}, layout=${Math.round(candidateLayoutScore(best))}`, true);
attachRemoteVideoToAi();
return true;
}
function ensureUserTracksBeforeConnect() {
chooseRemoteAudioTrack('pre-connect');
chooseRemoteVideoTrack('pre-connect');
if (shouldSendAudioToAi() && (!remoteUserAudioLocked || !lockedTrackUsable(remoteUserAudioTrack, audioCandidates))) {
appendChatLine('选轨', '未锁定上半部用户音频轨,暂不连接 AI', true);
return false;
}
if (shouldSendVideoToAi() && (!remoteUserVideoLocked || !lockedTrackUsable(remoteUserVideoTrack, videoCandidates))) {
appendChatLine('选轨', '未锁定上半部用户视频轨,暂不连接 AI', true);
return false;
}
return true;
}
function rememberRemoteTrack(track, reason, element = null) {
if (!isUsableTrack(track)) return;
if (track.kind === 'audio') {
const candidate = candidateFor(track, audioCandidates);
candidate.receiver = candidate.receiver || findReceiverForTrack(track);
candidate.reasons.add(reason);
if (element) candidate.elements.add(element);
if (!candidate.logged) {
candidate.logged = true;
log(`captured remote audio candidate (${reason}): ${describeTrack(track)}`, true);
}
chooseRemoteAudioTrack(reason);
return;
}
if (track.kind === 'video') {
const candidate = candidateFor(track, videoCandidates);
candidate.receiver = candidate.receiver || findReceiverForTrack(track);
candidate.reasons.add(reason);
if (element) candidate.elements.add(element);
if (!candidate.logged) {
candidate.logged = true;
log(`captured remote video candidate (${reason}): ${describeTrack(track)}`, true);
}
chooseRemoteVideoTrack(reason);
}
}
function rememberRemoteStream(stream, reason, element = null) {
if (!stream || !(stream instanceof MediaStream)) return;
if (stream.__aiNativeCopilotInternal) return;
const liveTracks = stream.getTracks().filter(isUsableTrack);
if (liveTracks.length === 0) return;
remoteStreams.add(stream);
for (const track of liveTracks) rememberRemoteTrack(track, reason, element);
chooseRemoteVideoTrack(reason);
}
function rememberBusinessAudioSender(sender, track, reason) {
const candidate = businessSenderCandidateFor(sender, track, reason);
if (!candidate) return;
if (!candidate.logged) {
candidate.logged = true;
log(`captured business audio sender candidate (${reason}): ${candidate.id}, track=${describeTrack(candidate.track)}`, true);
}
chooseBusinessAudioSender(reason);
}
function wrapBusinessSender(sender) {
if (!sender || sender.__aiNativeCopilotWrapped) return;
const originalReplaceTrack = sender.replaceTrack?.bind(sender);
if (!originalReplaceTrack) return;
sender.replaceTrack = async function (track) {
const result = await originalReplaceTrack(track);
const candidate = businessSenderCandidateFor(sender, track, 'replaceTrack');
if (candidate) {
candidate.track = track || sender.track || candidate.track;
}
if (!isAiTakeover && track?.kind === 'audio' && track !== aiResponseAudioTrack) {
if (candidate) candidate.originalTrack = track;
chooseBusinessAudioSender('replaceTrack');
}
return result;
};
sender.__aiNativeCopilotWrapped = true;
}
async function attachRemoteInputToAi() {
if (!shouldSendAudioToAi()) return false;
if (!aiAudioSender || !isUsableTrack(remoteUserAudioTrack)) return false;
if (aiAudioSender.track === remoteUserAudioTrack) return true;
try {
await aiAudioSender.replaceTrack(remoteUserAudioTrack);
log(`AI input uses native remote audio track (${remoteUserAudioTrack.id})`, true);
scheduleAiInputHealthCheck(remoteUserAudioTrack);
return true;
} catch (error) {
log(`failed to attach native remote audio to AI: ${error.message || error}`);
return false;
}
}
async function attachRemoteVideoToAi() {
if (!shouldSendVideoToAi()) return false;
if (!aiVideoSender || !isUsableTrack(remoteUserVideoTrack)) return false;
if (aiVideoSender.track === remoteUserVideoTrack) return true;
try {
await aiVideoSender.replaceTrack(remoteUserVideoTrack);
log('AI video uses native remote video track', true);
return true;
} catch (error) {
log(`failed to attach native remote video to AI: ${error.message || error}`);
return false;
}
}
async function attachAiOutputToBusiness() {
chooseBusinessAudioSender('before-ai-output');
if (!isAiTakeover || !businessAudioSender || !isLiveTrack(aiResponseAudioTrack)) {
log(`AI output waiting: takeover=${isAiTakeover}, businessSender=${Boolean(businessAudioSender)}, aiTrack=${describeTrack(aiResponseAudioTrack)}`);
return false;
}
if (businessAudioSender.track === aiResponseAudioTrack) return true;
try {
await businessAudioSender.replaceTrack(aiResponseAudioTrack);
aiTrackAttachedToBusiness = true;
log(`business call now uses native AI response audio track (${aiResponseAudioTrack.id})`, true);
scheduleAiOutputHealthCheck(aiResponseAudioTrack);
return true;
} catch (error) {
aiTrackAttachedToBusiness = false;
log(`failed to attach AI audio to business call: ${error.message || error}`);
return false;
}
}
function scheduleAiOutputHealthCheck(track) {
if (aiOutputHealthTimer) clearTimeout(aiOutputHealthTimer);
aiOutputHealthTimer = setTimeout(async () => {
if (!businessAudioSender || businessAudioSender.track !== track) {
log(`AI output check skipped: senderTrack=${describeTrack(businessAudioSender?.track)}, aiTrack=${describeTrack(track)}`);
return;
}
const before = await outboundAudioBytes(businessAudioSender);
await new Promise((resolve) => setTimeout(resolve, 2500));
if (!businessAudioSender || businessAudioSender.track !== track) return;
const after = await outboundAudioBytes(businessAudioSender);
log(`AI output packet check: before=${before}, after=${after}, senderTrack=${describeTrack(businessAudioSender.track)}`, true);
}, 800);
}
async function restoreBusinessAudio() {
if (!businessAudioSender || !aiTrackAttachedToBusiness) return;
try {
await businessAudioSender.replaceTrack(businessOriginalAudioTrack || null);
log('business call restored original audio track', true);
} catch (error) {
log(`failed to restore business audio track: ${error.message || error}`);
} finally {
aiTrackAttachedToBusiness = false;
}
}
function wrapTrackListener(listener) {
if (!listener || listener.__aiNativeCopilotWrapped) return listener;
const wrapped = function (event) {
if (!isInternalPc(this) && event?.track) {
rememberReceiver(event.receiver, 'pc-track');
rememberRemoteTrack(event.track, 'pc-track');
for (const stream of event.streams || []) rememberRemoteStream(stream, 'pc-track-stream');
}
if (typeof listener === 'function') return listener.apply(this, arguments);
if (listener?.handleEvent) return listener.handleEvent(event);
return undefined;
};
wrapped.__aiNativeCopilotWrapped = true;
return wrapped;
}
RTCPeerConnection.prototype.addEventListener = function (type, listener, options) {
if (type === 'track') {
return originalAddEventListener.call(this, type, wrapTrackListener(listener), options);
}
return originalAddEventListener.call(this, type, listener, options);
};
try {
const descriptor = Object.getOwnPropertyDescriptor(RTCPeerConnection.prototype, 'ontrack');
Object.defineProperty(RTCPeerConnection.prototype, 'ontrack', {
configurable: true,
enumerable: true,
get() {
return descriptor?.get ? descriptor.get.call(this) : this.__aiNativeCopilotOnTrack || null;
},
set(listener) {
const wrapped = wrapTrackListener(listener);
this.__aiNativeCopilotOnTrack = wrapped;
if (descriptor?.set) descriptor.set.call(this, wrapped);
else this.addEventListener('track', wrapped);
},
});
} catch (error) {
console.warn('[AI Native Copilot] failed to wrap ontrack', error);
}
RTCPeerConnection.prototype.addTrack = function (track, ...streams) {
const sender = originalAddTrack.call(this, track, ...streams);
if (!isInternalPc(this) && track?.kind === 'audio') {
rememberBusinessAudioSender(sender, track, 'pc-addTrack');
}
return sender;
};
if (originalAddTransceiver) {
RTCPeerConnection.prototype.addTransceiver = function (trackOrKind, init) {
const transceiver = originalAddTransceiver.call(this, trackOrKind, init);
if (!isInternalPc(this)) {
const kind = trackOrKind instanceof MediaStreamTrack ? trackOrKind.kind : trackOrKind;
if (kind === 'audio') {
const track = trackOrKind instanceof MediaStreamTrack ? trackOrKind : transceiver.sender?.track;
rememberBusinessAudioSender(transceiver.sender, track, 'pc-addTransceiver');
}
}
return transceiver;
};
}
RTCPeerConnection.prototype.setRemoteDescription = function () {
const result = originalSetRemoteDescription.apply(this, arguments);
if (!isInternalPc(this)) {
Promise.resolve(result).then(() => {
try {
for (const receiver of this.getReceivers?.() || []) {
rememberReceiver(receiver, 'receiver-after-srd');
rememberRemoteTrack(receiver.track, 'receiver-after-srd');
}
for (const sender of this.getSenders?.() || []) {
rememberBusinessAudioSender(sender, sender.track, 'sender-after-srd');
}
for (const stream of this.getRemoteStreams?.() || []) {
rememberRemoteStream(stream, 'remote-stream-after-srd');
}
} catch (error) {
console.warn('[AI Native Copilot] failed to scan receivers', error);
}
});
}
return result;
};
if (mediaSrcObjectDescriptor?.set) {
Object.defineProperty(HTMLMediaElement.prototype, 'srcObject', {
configurable: true,
enumerable: mediaSrcObjectDescriptor.enumerable,
get() {
return mediaSrcObjectDescriptor.get.call(this);
},
set(stream) {
if ((this.tagName === 'AUDIO' || this.tagName === 'VIDEO') && !this.__aiNativeCopilotElement) {
rememberRemoteStream(stream, 'media-srcObject', this);
}
return mediaSrcObjectDescriptor.set.call(this, stream);
},
});
}
if (originalGetUserMedia) {
navigator.mediaDevices.getUserMedia = async function (constraints) {
const stream = await originalGetUserMedia(constraints);
for (const track of stream.getAudioTracks()) {
localCaptureTrackIds.add(track.id);
}
chooseBusinessAudioSender('getUserMedia');
renderPanelSoon();
return stream;
};
}
setInterval(async () => {
if (!(await checkLockedUserTracks('scan'))) return;
for (const element of document.querySelectorAll('audio, video')) {
if (element.__aiNativeCopilotElement) continue;
rememberRemoteStream(element.srcObject, 'media-scan', element);
}
for (const stream of Array.from(remoteStreams)) {
rememberRemoteStream(stream, 'stream-rescan');
}
await checkLockedUserTracks('scan-after');
}, 1000);
window.__aiNativeCopilotDump = function () {
const audio = Array.from(audioCandidates.values()).map((candidate) => ({
id: candidate.track.id,
label: candidate.track.label,
selected: candidate.track === remoteUserAudioTrack,
enabled: candidate.track.enabled,
muted: candidate.track.muted,
readyState: candidate.track.readyState,
hasReceiver: Boolean(candidate.receiver || findReceiverForTrack(candidate.track)),
bytesReceived: candidate.bytesReceived,
packetsReceived: candidate.packetsReceived,
bytesDelta: candidate.bytesDelta,
packetsDelta: candidate.packetsDelta,
level: candidate.level,
audible: candidate.level >= 0.0015,
layoutScore: Math.round(candidateLayoutScore(candidate)),
elements: Array.from(candidate.elements || []).map(elementLayoutInfo).filter(Boolean),
vuLevel: inputVuLevelFromCandidate(candidate),
score: Math.round(scoreAudioCandidate(candidate)),
reasons: Array.from(candidate.reasons),
}));
const video = Array.from(videoCandidates.values()).map((candidate) => ({
id: candidate.track.id,
label: candidate.track.label,
selected: candidate.track === remoteUserVideoTrack,
muted: candidate.track.muted,
readyState: candidate.track.readyState,
hasReceiver: Boolean(candidate.receiver || findReceiverForTrack(candidate.track)),
layoutScore: Math.round(candidateLayoutScore(candidate)),
score: Math.round(scoreVideoCandidate(candidate)),
elements: Array.from(candidate.elements || []).map(elementLayoutInfo).filter(Boolean),
reasons: Array.from(candidate.reasons),
}));
const businessSenders = Array.from(businessSenderCandidates.values()).map((candidate) => ({
id: candidate.id,
selected: candidate.sender === businessAudioSender,
track: describeTrack(candidate.sender.track || candidate.track),
originalTrack: describeTrack(candidate.originalTrack),
isRemoteTrack: isKnownRemoteAudioTrack(candidate.sender.track || candidate.track),
isLocalCaptureTrack: Boolean(candidate.sender.track && localCaptureTrackIds.has(candidate.sender.track.id)),
bytesSent: candidate.bytesSent,
packetsSent: candidate.packetsSent,
bytesDelta: candidate.bytesDelta,
packetsDelta: candidate.packetsDelta,
score: Math.round(scoreBusinessSenderCandidate(candidate)),
sources: Array.from(candidate.sources),
}));
return {
selectedAudio: describeTrack(remoteUserAudioTrack),
selectedVideo: describeTrack(remoteUserVideoTrack),
audioLocked: remoteUserAudioLocked,
videoLocked: remoteUserVideoLocked,
aiInputTrack: describeTrack(aiAudioSender?.track),
aiOutputTrack: describeTrack(aiResponseAudioTrack),
businessSenderTrack: describeTrack(businessAudioSender?.track),
aiTrackAttachedToBusiness,
videoRecording: videoRecorder?.state === 'recording' ? {
track: describeTrack(videoRecordingTrack),
seconds: ((Date.now() - videoRecordingStartedAt) / 1000).toFixed(1),
chunks: videoRecordingChunks.length,
} : null,
businessOutboundStats: { ...businessOutboundStats },
aiState: aiStateLabel(),
audio,
video,
businessSenders,
};
};
async function connectAi(signalingUrl, assistantId) {
if (!ensureUserTracksBeforeConnect()) {
setStatus('disconnected');
return false;
}
disconnectAi();
const pcId = generatePcId();
aiPc = new RTCPeerConnection({ iceServers: [{ urls: 'stun:stun.l.google.com:19302' }] });
aiPc.__aiNativeCopilotInternal = true;
aiPc.onconnectionstatechange = () => log(`AI PC connectionState=${aiPc.connectionState}`);
aiPc.oniceconnectionstatechange = () => log(`AI PC iceConnectionState=${aiPc.iceConnectionState}`);
aiDc = aiPc.createDataChannel('chat');
aiDc.onopen = () => {
setStatus('connected');
log('AI data channel open', true);
aiDc.send(JSON.stringify({ type: 'client-ready' }));
};
aiDc.onclose = () => setStatus('disconnected');
aiDc.onmessage = (event) => {
try {
const msg = JSON.parse(event.data);
const content = msg.delta || msg.content;
if (msg.type === 'transcript') {
logUserTranscript(content);
} else if (msg.type === 'assistant-text-start') {
startAssistantLine();
} else if (msg.type === 'assistant-text-delta') {
appendAssistantDelta(content);
} else if (msg.type === 'assistant-text-end') {
finishAssistantLine();
} else {
log(`data channel message: ${msg.type}`);
}
} catch {
appendChatLine('DATA', event.data);
}
};
const sendAudio = shouldSendAudioToAi();
const audioTransceiver = sendAudio && isUsableTrack(remoteUserAudioTrack)
? aiPc.addTransceiver(remoteUserAudioTrack, { direction: 'sendrecv' })
: aiPc.addTransceiver('audio', { direction: sendAudio ? 'sendrecv' : 'recvonly' });
aiAudioSender = audioTransceiver.sender;
log(!sendAudio
? 'AI audio uplink disabled by panel setting'
: isUsableTrack(remoteUserAudioTrack)
? 'AI input starts with native remote audio track'
: 'AI input waiting for native remote audio track', true);
const sendVideo = shouldSendVideoToAi();
if (sendVideo) {
const videoTransceiver = isUsableTrack(remoteUserVideoTrack)
? aiPc.addTransceiver(remoteUserVideoTrack, { direction: 'sendonly' })
: aiPc.addTransceiver('video', { direction: 'sendonly' });
aiVideoSender = videoTransceiver.sender;
if (isUsableTrack(remoteUserVideoTrack)) log('AI video starts with native remote video track', true);
} else {
aiVideoSender = null;
log('AI video uplink disabled by panel setting');
}
if (sendAudio && isUsableTrack(remoteUserAudioTrack)) scheduleAiInputHealthCheck(remoteUserAudioTrack);
aiPc.ontrack = (event) => {
if (event.track.kind !== 'audio') return;
ignoredTrackIds.add(event.track.id);
aiResponseAudioTrack = event.track;
log('received native AI response audio track', true);
attachAiOutputToBusiness();
};
aiPc.onicecandidate = (event) => {
if (aiWs?.readyState !== WebSocket.OPEN) return;
aiWs.send(JSON.stringify({
type: 'ice-candidate',
payload: {
pc_id: pcId,
candidate: event.candidate ? {
candidate: event.candidate.candidate,
sdpMid: event.candidate.sdpMid,
sdpMLineIndex: event.candidate.sdpMLineIndex,
} : null,
},
}));
};
setStatus('connecting');
aiWs = new WebSocket(signalingUrl);
aiWs.onopen = async () => {
const offer = await aiPc.createOffer();
await aiPc.setLocalDescription(offer);
aiWs.send(JSON.stringify({
type: 'offer',
payload: {
pc_id: pcId,
sdp: aiPc.localDescription.sdp,
type: aiPc.localDescription.type,
assistant_id: assistantId,
vision_enabled: sendVideo,
},
}));
log('sent AI WebRTC offer', true);
};
aiWs.onmessage = async (event) => {
try {
const msg = JSON.parse(event.data);
if (msg.type === 'answer') {
await aiPc.setRemoteDescription({ type: 'answer', sdp: msg.payload.sdp });
log(`AI WebRTC answer applied; ${aiStateLabel()}`, true);
} else if (msg.type === 'ice-candidate' && msg.payload?.candidate) {
await aiPc.addIceCandidate(msg.payload.candidate).catch(() => {});
} else if (msg.type === 'error') {
throw new Error(msg.payload?.message || 'server error');
}
} catch (error) {
log(`signaling error: ${error.message || error}`);
}
};
aiWs.onerror = () => {
setStatus('failed');
log('AI signaling websocket error');
};
aiWs.onclose = () => setStatus('disconnected');
attachRemoteInputToAi();
if (sendVideo) attachRemoteVideoToAi();
return true;
}
function disconnectAi() {
if (aiDc) {
try { aiDc.close(); } catch {}
aiDc = null;
}
if (aiPc) {
try { aiPc.close(); } catch {}
aiPc = null;
}
if (aiWs) {
try { aiWs.close(); } catch {}
aiWs = null;
}
aiAudioSender = null;
aiVideoSender = null;
aiResponseAudioTrack = null;
if (inputRecorder?.state === 'recording') stopInputRecording();
if (videoRecorder?.state === 'recording') stopVideoRecording();
setStatus('disconnected');
}
function setStatus(status) {
const el = document.getElementById('native-copilot-status');
if (!el) return;
const labels = {
disconnected: '未连接',
connecting: '连接中',
connected: '已连接',
failed: '连接失败',
};
el.textContent = labels[status] || status;
}
function updateModeButton() {
const button = document.getElementById('native-copilot-toggle');
if (!button) return;
if (isAiTakeover) {
button.textContent = '当前:AI 接管|点击切回人工';
button.style.background = '#8b5cf6';
} else {
button.textContent = '当前:人工接管|点击切换 AI';
button.style.background = '#10b981';
}
}
function renderPanel() {
if (!document.body || document.getElementById('native-copilot-panel')) return;
const panel = document.createElement('div');
panel.id = 'native-copilot-panel';
panel.style.cssText = [
'position:fixed',
'top:20px',
'left:20px',
'width:360px',
'z-index:999999',
'box-sizing:border-box',
'padding:16px',
'border-radius:10px',
'background:rgba(17,24,39,.96)',
'color:white',
'font-family:system-ui,-apple-system,BlinkMacSystemFont,sans-serif',
'box-shadow:0 12px 32px rgba(0,0,0,.35)',
].join(';');
panel.innerHTML = `
<div style="display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:12px;">
<strong style="font-size:15px;color:#93c5fd;">AI 原生选轨</strong>
<span id="native-copilot-status" style="font-size:12px;color:#d1d5db;">未连接</span>
</div>
<div style="font-size:11px;color:#9ca3af;margin-bottom:10px;line-height:1.5;">
音频输入:布局优先自动选轨<br>
视频输入:远端视频轨
</div>
<label style="display:block;font-size:12px;color:#9ca3af;margin-bottom:4px;">信令地址</label>
<input id="native-copilot-url" value="${DEFAULT_SIGNALING_URL}" style="width:100%;box-sizing:border-box;margin-bottom:10px;padding:8px;border:1px solid #4b5563;border-radius:6px;background:#111827;color:white;">
<label style="display:block;font-size:12px;color:#9ca3af;margin-bottom:4px;">助手 ID</label>
<input id="native-copilot-assistant" placeholder="请输入助手 ID" style="width:100%;box-sizing:border-box;margin-bottom:12px;padding:8px;border:1px solid #4b5563;border-radius:6px;background:#111827;color:white;">
<div style="display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px;">
<label style="display:flex;align-items:center;gap:6px;padding:8px;border:1px solid #374151;border-radius:6px;background:#111827;font-size:12px;color:#e5e7eb;cursor:pointer;">
<input id="native-copilot-send-audio" type="checkbox" style="margin:0;">
<span>传音频给 AI</span>
</label>
<label style="display:flex;align-items:center;gap:6px;padding:8px;border:1px solid #374151;border-radius:6px;background:#111827;font-size:12px;color:#e5e7eb;cursor:pointer;">
<input id="native-copilot-send-video" type="checkbox" style="margin:0;">
<span>传视频给 AI</span>
</label>
</div>
<div style="margin-bottom:10px;">
<div style="display:flex;justify-content:space-between;gap:8px;font-size:12px;color:#d1fae5;margin-bottom:4px;">
<span id="native-copilot-selected-input" style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">等待远端音轨</span><span>原生音轨</span>
</div>
<div style="height:8px;border-radius:999px;overflow:hidden;background:#374151;">
<div id="native-copilot-input-vu" style="height:100%;width:0%;background:linear-gradient(90deg,#10b981,#fcd34d);transition:width .06s linear;"></div>
</div>
</div>
<div style="margin-bottom:12px;">
<div style="display:flex;justify-content:space-between;font-size:12px;color:#bfdbfe;margin-bottom:4px;">
<span>AI 输出</span><span>业务上行</span>
</div>
<div style="height:8px;border-radius:999px;overflow:hidden;background:#374151;">
<div id="native-copilot-ai-vu" style="height:100%;width:0%;background:linear-gradient(90deg,#60a5fa,#c084fc);transition:width .06s linear;"></div>
</div>
</div>
<button id="native-copilot-toggle" style="width:100%;padding:12px;border:0;border-radius:6px;background:#10b981;color:white;font-weight:700;cursor:pointer;">当前:人工接管|点击切换 AI</button>
<div style="display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px;">
<button id="native-copilot-record" style="width:100%;padding:10px;border:0;border-radius:6px;background:#2563eb;color:white;font-weight:700;cursor:pointer;">录制 AI 输入</button>
<button id="native-copilot-record-video" style="width:100%;padding:10px;border:0;border-radius:6px;background:#475569;color:white;font-weight:700;cursor:pointer;">录制 AI 视频</button>
</div>
<div id="native-copilot-log" style="height:170px;margin-top:12px;padding:8px;overflow:auto;border:1px solid #374151;border-radius:6px;background:#030712;color:#a7f3d0;font:11px ui-monospace,Menlo,monospace;">
<span data-placeholder="1" style="color:#6b7280;">等待交互...</span>
</div>
`;
document.body.appendChild(panel);
const toggle = document.getElementById('native-copilot-toggle');
const recordButton = document.getElementById('native-copilot-record');
const videoRecordButton = document.getElementById('native-copilot-record-video');
const urlInput = document.getElementById('native-copilot-url');
const assistantInput = document.getElementById('native-copilot-assistant');
const sendAudioInput = document.getElementById('native-copilot-send-audio');
const sendVideoInput = document.getElementById('native-copilot-send-video');
sendAudioInput.checked = shouldSendAudioToAi();
sendVideoInput.checked = shouldSendVideoToAi();
sendAudioInput.addEventListener('change', () => {
writeBoolSetting(AUDIO_UPLINK_STORAGE_KEY, sendAudioInput.checked);
log(`AI audio uplink setting: ${sendAudioInput.checked ? 'on' : 'off'}`);
});
sendVideoInput.addEventListener('change', () => {
writeBoolSetting(VIDEO_UPLINK_STORAGE_KEY, sendVideoInput.checked);
log(`AI video uplink setting: ${sendVideoInput.checked ? 'on' : 'off'}`);
});
recordButton.addEventListener('click', toggleInputRecording);
videoRecordButton.addEventListener('click', toggleVideoRecording);
updateRecordButton();
updateVideoRecordButton();
updateSelectedInputLabel();
updateModeButton();
toggle.addEventListener('click', async () => {
if (!isAiTakeover && !assistantInput.value.trim()) {
alert('请先填写助手 ID。');
return;
}
if (!isAiTakeover && !ensureUserTracksBeforeConnect()) {
updateModeButton();
return;
}
isAiTakeover = !isAiTakeover;
updateModeButton();
if (isAiTakeover) {
const connected = await connectAi(urlInput.value.trim(), assistantInput.value.trim());
if (connected) await attachAiOutputToBusiness();
else {
isAiTakeover = false;
updateModeButton();
}
} else {
await restoreBusinessAudio();
disconnectAi();
}
});
}
function renderPanelSoon() {
try { renderPanel(); } catch (error) { console.warn('[AI Native Copilot] panel error', error); }
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', renderPanelSoon, { once: true });
} else {
renderPanelSoon();
}
requestAnimationFrame(renderVu);
setInterval(refreshVuFromStats, 250);
setTimeout(renderPanelSoon, 1500);
setTimeout(renderPanelSoon, 3000);
})();