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666 lines
23 KiB
666 lines
23 KiB
import 'dart:async';
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import 'dart:typed_data';
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import 'package:device_plugin_interface/device_plugin_interface.dart';
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import 'package:get/get.dart';
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import '../../core/utils/logger.dart';
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import '../../devices/device_hub.dart';
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import '../models/agent_module.dart';
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import '../models/emai_message.dart';
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import '../models/user_Info.dart' as user_info;
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import '../utils/cue_tone.dart';
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import 'agent_module_defaults.dart';
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import 'assistant_directive_service.dart';
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import 'bailian_multimodal_service.dart';
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import 'emai_chat_store.dart';
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import 'mcp_token_service.dart';
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/// 设备按键唤醒的 AI 实时对话会话——**厂商无关**，要求设备具备
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/// [DeviceCapability.aiWake]。
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///
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/// 把「设备按键唤醒」接到阿里百炼多模态上：设备麦的音频由插件解码成 16k PCM
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/// （`openMic(ai)`）推给百炼，百炼回的 16k PCM 交给 `openSpeaker(ai)` 由插件/原生
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/// 编码后按节奏发回设备播放。整条链路上这里只搬运 PCM。
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///
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/// **握手是设备主导的**，App 只能应答（恒玄时序，其它厂商在插件里对齐到同一语义）：
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/// ```
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/// 设备按键 ──► wakeEvents(ptt) 恒玄: BB 64
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/// App ──► ai.accept 恒玄: AA 6A，必须 3 秒内，否则设备停止送音频
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/// …会话进行中…
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/// App ──► ai.exit 恒玄: AA 65
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/// 设备 ──► wakeEvents(hangup) 恒玄: BB E5；2 秒不回就本地强制结束
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/// ```
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///
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/// 常驻服务：按键在任意页面（含 App 在后台、EMAI 页没打开）都要能唤醒。
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class DeviceAiSessionService extends GetxService {
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static const String _tag = 'DeviceAiSession';
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static DeviceAiSessionService get to => Get.find<DeviceAiSessionService>();
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/// 设备侧的会话与手机 EMAI 页各用一条独立的 WebSocket。
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/// 共用一个单例的话两边会互相 stop 掉对方、下行音频也会串。
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///
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/// ⚠️ **接哪个百炼应用要看是哪台设备唤醒的**：耳机/支架接 EMAI，车载香薰接
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/// 「Smartcar 车载助手」（各自的 app_id 不同）。所以这里不能是 final 单例，
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/// 由 [_ensureService] 按厂商换实例；app_id 没变就复用，不白开 WebSocket。
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BailianMultimodalService _svc = BailianMultimodalService();
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String? _svcAppId;
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/// 厂商 → 该接哪个 agent 的 app_id。走的是「厂商 → 品类 → 默认编排第一个模块
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/// → 模块声明的 bailianAppId」这条链，**设备层不认识 agent、agent 层不认识厂商**。
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/// 查不到返回 null = 用全局默认（EMAI）。
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String? _resolveAgentAppId(String vendor) {
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try {
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return bailianAppIdForModule(AgentDefaults.primaryModuleForVendor(vendor));
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} catch (e) {
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Logger.w(_tag, '解析 agent app_id 失败（回退默认）: $e');
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return null;
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}
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}
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/// 按需换一个指向目标 app_id 的服务实例。
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void _ensureService(String? appId) {
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final want = (appId ?? '').trim();
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final cur = (_svcAppId ?? '').trim();
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if (want == cur) return;
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Logger.i(_tag,
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'切换设备侧百炼应用: ${cur.isEmpty ? '(默认)' : cur} → ${want.isEmpty ? '(默认)' : want}');
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// 旧实例可能还挂着 WebSocket，先停掉再丢
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unawaited(_svc.stop());
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_svc = BailianMultimodalService(appId: want.isEmpty ? null : want);
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_svcAppId = want;
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}
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/// 设备上行 PCM 就是 16k/16bit/mono，与百炼上行要求一致
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static const int _deviceRate = 16000;
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/// 上行攒够这么多字节再发一包：3200B = 100ms @16k。设备每 20ms 上来一包，
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/// 逐包转发就是 50 条 WS 消息/秒，攒成 100ms 一条降到 1/5。
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static const int _micBatchBytes = 3200;
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final BytesBuilder _micAccum = BytesBuilder(copy: false);
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/// 收到唤醒后必须在这个时间内应答。我们是立即回，这个常量只是把固件约束写在代码里。
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static const Duration _ackDeadline = Duration(seconds: 3);
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/// 发出 ai.exit 后等设备回 hangup 的时间，超时就本地强制结束
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static const Duration _stopAckTimeout = Duration(seconds: 2);
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StreamSubscription? _wakeSub;
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StreamSubscription? _hubSub;
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StreamSubscription? _micSub;
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StreamSubscription? _eventSub;
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StreamSubscription? _audioSub;
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DeviceSession? _session;
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DeviceAudioSource? _mic;
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DeviceAudioSink? _spk;
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Timer? _stopAckTimer;
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Timer? _playoutTimer;
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/// 会话是否在跑（已应答，还没收到/发出结束）
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final RxBool isActive = false.obs;
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/// 手机 EMAI 页（打开时由它自己 attach 上来）。
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/// 不用 `Get.put<EmaiSessionOwner>(controller)`：GetX 的 put 会对实例调
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/// onInit，而页面正是在自己的 onInit 里注册的，会递归到 Stack Overflow。
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EmaiSessionOwner? _phonePage;
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int _respondingBytes = 0;
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DateTime? _respondingStartedAt;
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/// 上行是否被门控住（AI 正在设备里播报期间）。
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/// 设备没有把下发的音频接进自己的 AEC，播出去的 AI 声音会被麦克风原样收回，
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/// duplex 模式下服务端 VAD 把它当成用户插话。没有 AEC 就只能做半双工。
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bool _uplinkGated = false;
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Timer? _gateTimer;
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bool _tearingDown = false;
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static const Duration _gateTail = Duration(milliseconds: 500);
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static const Duration _idleTimeout = Duration(seconds: 5);
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Timer? _idleTimer;
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DateTime? _firstAudioAt;
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int _micPackets = 0;
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int _downPackets = 0;
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EmaiChatStore get _store => EmaiChatStore.to;
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EmaiMessage? _streamingUser;
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EmaiMessage? _streamingAssistant;
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@override
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void onInit() {
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super.onInit();
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final hub = DeviceHub.to;
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_wakeSub = hub.wakeEvents.listen(_onWake, onError: (e) {
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Logger.e(_tag, '唤醒事件流错误: $e');
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});
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_hubSub = hub.sessionEvents.listen((e) {
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if (e.type == DeviceSessionEventType.connectionStateChanged &&
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e.connectionState == DeviceConnectionState.disconnected &&
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isActive.value &&
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_session?.deviceId == e.deviceId) {
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Logger.w(_tag, '设备断连，结束 AI 会话');
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_teardown(notifyDevice: false, playEndTone: false);
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}
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});
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Logger.i(_tag, '设备 AI 会话服务已就绪，等待按键唤醒');
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}
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@override
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void onClose() {
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_wakeSub?.cancel();
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_hubSub?.cancel();
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_teardown(notifyDevice: true, playEndTone: false);
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super.onClose();
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}
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// ---------------- 设备事件 ----------------
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void _onWake(DeviceWakeEvent e) {
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switch (e.reason) {
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case WakeReason.ptt:
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case WakeReason.voiceWake:
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_handleStart(e.deviceId);
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break;
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case WakeReason.hangup:
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Logger.i(_tag, '设备通知结束 AI');
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_teardown(notifyDevice: false);
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break;
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default:
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break;
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}
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}
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void _onMicPcm(Uint8List pcm) {
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if (!isActive.value || pcm.isEmpty) return;
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_micPackets++;
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if (_micPackets == 1 || _micPackets % 50 == 0) {
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Logger.i(_tag,
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'设备上行 #$_micPackets (${pcm.length}B/包)${_uplinkGated ? ' [门控中]' : ''}');
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}
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// 门控期间推等长静音而不是断流：上行保持连续，服务端 VAD 收到的是
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// "真的没人说话"，而不是一段数据缺口
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_micAccum.add(_uplinkGated ? Uint8List(pcm.length) : pcm);
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if (_micAccum.length >= _micBatchBytes) {
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_svc.pushAudio(_micAccum.takeBytes());
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}
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}
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Future<void> _handleStart(String deviceId) async {
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if (isActive.value) {
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Logger.w(_tag, '已有会话在跑，忽略重复唤醒');
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return;
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}
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final hub = DeviceHub.to;
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final session =
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hub.sessions.firstWhereOrNull((s) => s.deviceId == deviceId) ??
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hub.sessionWith(DeviceCapability.aiWake);
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if (session == null || session.state != DeviceConnectionState.ready) {
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Logger.e(_tag, '设备未处于已连接状态，拒绝本次唤醒');
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return;
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}
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// ★ 先按厂商选中该说话的那个 agent（车载香薰 → Smartcar 车载助手），
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// 再去看 isConfigured —— 反过来的话检查的是上一台设备的应用
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_ensureService(_resolveAgentAppId(session.vendor));
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Logger.i(_tag,
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'设备按键唤醒 AI (${session.vendor}，应用=${_svcAppId?.isNotEmpty == true ? _svcAppId : '默认'})');
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// 起不来就别应答，直接让设备退出 AI 模式——应答之后设备会一直送音频，
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// 而我们这边没有会话接，它会白等到超时
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if (!_svc.isConfigured) {
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Logger.e(_tag, '百炼未配置(${_svc.configHint})，拒绝本次唤醒');
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await _sendExit(session);
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return;
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}
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// 固件要求 3 秒内确认，先应答再做后面的初始化。
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// 反过来的话，百炼握手（一次 WebSocket 往返）可能就吃掉大半个预算。
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final ackAt = DateTime.now();
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_session = session;
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try {
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await session.invokeFeature(DeviceFeatures.aiAccept);
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} catch (e) {
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Logger.e(_tag, '应答唤醒失败: $e');
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_session = null;
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return;
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}
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isActive.value = true;
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// 换了设备就重新试一次 ai.state（上一台不支持不代表这台也不支持）
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_aiStateUnsupported = false;
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_quitAfterPlayout = false;
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_micPackets = 0;
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_downPackets = 0;
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_uplinkGated = false;
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_micAccum.clear();
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await _yieldPhonePage();
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try {
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_mic = await session.openMic(route: AudioRoute.ai);
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_micSub = _mic!.pcm.listen(_onMicPcm);
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_eventSub = _svc.events.listen(_onBailianEvent);
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// 下行 16k：G.722 编码器就是 16k，让服务端直接出 16k 省掉一次重采样
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_audioSub = _svc.audioOut.listen(_onDownstreamPcm);
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_spk = await session.openSpeaker(route: AudioRoute.ai);
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} catch (e) {
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Logger.e(_tag, '打开设备音频通路失败: $e');
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await _teardown(notifyDevice: true, playEndTone: false);
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return;
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}
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// 先给一声「叮」，让用户立刻知道已经在听了——百炼握手还要一次往返
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await _playCue(CueTone.ding(sampleRate: _deviceRate));
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_touchActivity();
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final ok = await _svc.start(
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mode: 'duplex',
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downstreamRate: _deviceRate,
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userId: _currentUserId(),
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source: 'earphone',
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mcpToken: await McpTokenService.get(),
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);
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final elapsed = DateTime.now().difference(ackAt);
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if (elapsed > _ackDeadline) {
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Logger.w(
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_tag,
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'会话初始化耗时 ${elapsed.inMilliseconds}ms，已超过固件 '
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'${_ackDeadline.inSeconds}s 预算（应答已提前回，通常无碍）');
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}
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if (!ok) {
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Logger.e(_tag, '百炼会话启动失败，结束');
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await _teardown(notifyDevice: true);
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}
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}
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// ---------------- 百炼事件 ----------------
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void _onBailianEvent(BailianEvent e) {
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Logger.i(_tag, '百炼事件 $e');
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switch (e.type) {
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case BailianEventType.speechStarted:
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case BailianEventType.speechContent:
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case BailianEventType.speechEnded:
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case BailianEventType.respondingStarted:
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case BailianEventType.respondingContent:
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case BailianEventType.respondingEnded:
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_touchActivity();
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break;
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default:
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break;
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}
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switch (e.type) {
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case BailianEventType.speechStarted:
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// 只有真人插话才丢队列。门控期间的 speechStarted 是 AI 自己的回声触发的
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if (!_uplinkGated) {
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_spk?.discardPending();
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_cancelPlayoutTimer();
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}
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_streamingUser = null;
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break;
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case BailianEventType.speechContent:
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_streamingUser ??= _store
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.append(EmaiMessage(isUser: true, text: '', fromEarphone: true));
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_store.applyText(_streamingUser!, e.text);
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if (e.isFinal) {
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_store.finalize(_streamingUser);
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_streamingUser = null;
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}
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break;
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case BailianEventType.speechEnded:
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if (e.text.isNotEmpty && _streamingUser != null) {
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_store.applyText(_streamingUser!, e.text);
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}
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_store.finalize(_streamingUser);
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_streamingUser = null;
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break;
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case BailianEventType.respondingStarted:
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_respondingBytes = 0;
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_firstAudioAt = null;
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_respondingStartedAt = DateTime.now();
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_cancelPlayoutTimer();
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_streamingAssistant = null;
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break;
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case BailianEventType.respondingContent:
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if (e.directives.isNotEmpty &&
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Get.isRegistered<AssistantDirectiveService>()) {
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AssistantDirectiveService.to.handle(e.directives);
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}
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// 「关闭对话」：模型会下发 quit 指令并同时回一句告别语。
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// 不能立刻结束——那样告别语还没播完就被掐了；标记下来，等播完再收尾。
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if (e.directives.any((d) => d.name == _quitDirective)) {
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Logger.i(_tag, '收到 quit 指令，本轮播完后结束会话');
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_quitAfterPlayout = true;
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}
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// 纯指令帧没有文本，别建空气泡
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if (e.text.isEmpty && e.finishReason == 'command_calls') break;
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_streamingAssistant ??= _store
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.append(EmaiMessage(isUser: false, text: '', fromEarphone: true));
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_store.applyText(_streamingAssistant!, e.text);
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break;
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case BailianEventType.respondingEnded:
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if (e.text.isNotEmpty && _streamingAssistant != null) {
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_store.applyText(_streamingAssistant!, e.text);
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}
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_store.finalize(_streamingAssistant);
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_streamingAssistant = null;
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_logResponseAudioStats();
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_schedulePlayoutDone();
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break;
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case BailianEventType.error:
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Logger.e(_tag, '会话错误: ${e.code} ${e.text} fatal=${e.fatal}');
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_store.dropIfEmpty(_streamingUser);
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_streamingUser = null;
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_store.dropIfEmpty(_streamingAssistant);
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_streamingAssistant = null;
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if (e.text.isNotEmpty) {
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_store.append(EmaiMessage(
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isUser: false,
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text: e.text,
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isFinal: true,
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isError: true,
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fromEarphone: true));
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_store.persist();
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}
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if (e.fatal) _teardown(notifyDevice: true);
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break;
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case BailianEventType.stateChanged:
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// 把会话状态同步给设备，驱动它的指示灯/表情动画。
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// ⚠️ 只有声明了这个 feature 的厂商会真发字节，其余抛 not_supported 被吞掉。
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switch (e.state) {
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case BailianDialogState.listening:
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_pushAiState(DeviceAiState.listening);
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break;
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case BailianDialogState.thinking:
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_pushAiState(DeviceAiState.thinking);
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break;
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case BailianDialogState.responding:
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_pushAiState(DeviceAiState.speaking);
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break;
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default:
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break;
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}
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break;
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case BailianEventType.closed:
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if (isActive.value) {
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Logger.w(_tag, '百炼会话关闭，结束设备 AI');
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_teardown(notifyDevice: true);
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}
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break;
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default:
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break;
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}
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}
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void _onDownstreamPcm(Uint8List pcm) {
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if (!isActive.value || pcm.isEmpty) return;
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if (_firstAudioAt == null) {
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_firstAudioAt = DateTime.now();
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_openGate();
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}
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_respondingBytes += pcm.length;
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_downPackets++;
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if (_downPackets == 1 || _downPackets % 50 == 0) {
|
|
Logger.i(_tag, '下行给设备 #$_downPackets (${pcm.length}B)');
|
|
}
|
|
_spk?.write(pcm);
|
|
}
|
|
|
|
/// 有动静就把静默计时重新拨回 5 秒。播报期间不计时。
|
|
/// 设备是否支持 [DeviceFeatures.aiState]。不支持就别每次都试、别每次都打日志。
|
|
bool _aiStateUnsupported = false;
|
|
|
|
/// 模型下发的「结束对话」指令名（`extra_info.commands` 里的 `name`）
|
|
static const String _quitDirective = 'quit';
|
|
|
|
/// 收到 quit 指令，等这一轮告别语播完就收尾
|
|
bool _quitAfterPlayout = false;
|
|
|
|
/// 把 AI 会话状态推给设备（驱动指示灯/表情）。
|
|
///
|
|
/// **fire-and-forget**：设备不支持、或这条命令失败，都不该影响对话本身，
|
|
/// 所以既不 await 也不往上抛。
|
|
void _pushAiState(DeviceAiState state) {
|
|
if (_aiStateUnsupported) return;
|
|
final s = _session;
|
|
if (s == null || s.state != DeviceConnectionState.ready) return;
|
|
s.invokeFeature(DeviceFeatures.aiState, {'state': state}).catchError(
|
|
(Object e) {
|
|
if (e is DeviceException && e.code == DeviceErrorCode.notSupported) {
|
|
// 这台设备没有表情/指示灯，记一次就够了
|
|
_aiStateUnsupported = true;
|
|
Logger.i(_tag, '设备不支持 ai.state，后续不再推送会话状态');
|
|
} else {
|
|
Logger.w(_tag, '推送 ai.state($state) 失败: $e');
|
|
}
|
|
return <String, Object?>{};
|
|
},
|
|
);
|
|
}
|
|
|
|
void _touchActivity() {
|
|
_idleTimer?.cancel();
|
|
_idleTimer = null;
|
|
if (!isActive.value || _uplinkGated) return;
|
|
_idleTimer = Timer(_idleTimeout, () {
|
|
if (!isActive.value) return;
|
|
Logger.i(_tag, '双方 ${_idleTimeout.inSeconds}s 无声，自动结束 AI 会话');
|
|
requestStop();
|
|
});
|
|
}
|
|
|
|
/// 在设备里放一段提示音（走 AI 下行通道）。播放期间开门控。
|
|
Future<void> _playCue(Uint8List pcm, {bool waitForPlayout = false}) async {
|
|
final spk = _spk;
|
|
if (spk == null || _session?.state != DeviceConnectionState.ready) return;
|
|
_openGate();
|
|
await spk.write(pcm);
|
|
final ms = pcm.length * 1000 ~/ (_deviceRate * 2);
|
|
if (waitForPlayout) {
|
|
// 结束音要等它真的发完+播完，否则紧接着关通道会把它清掉
|
|
await Future.delayed(Duration(milliseconds: ms + 400));
|
|
} else {
|
|
_gateTimer?.cancel();
|
|
_gateTimer = Timer(Duration(milliseconds: ms + 300), _closeGate);
|
|
}
|
|
}
|
|
|
|
void _openGate() {
|
|
_gateTimer?.cancel();
|
|
_gateTimer = null;
|
|
if (_uplinkGated) return;
|
|
_uplinkGated = true;
|
|
_idleTimer?.cancel();
|
|
_idleTimer = null;
|
|
Logger.i(_tag, '上行门控开启（AI 播报中）');
|
|
}
|
|
|
|
void _closeGate() {
|
|
_gateTimer?.cancel();
|
|
_gateTimer = null;
|
|
if (!_uplinkGated) return;
|
|
_uplinkGated = false;
|
|
Logger.i(_tag, '上行门控解除');
|
|
_touchActivity();
|
|
}
|
|
|
|
void _logResponseAudioStats() {
|
|
final start = _firstAudioAt;
|
|
if (start == null || _respondingBytes == 0) return;
|
|
final ms = DateTime.now().difference(start).inMilliseconds;
|
|
final audioMs = _respondingBytes * 1000 ~/ (_deviceRate * 2);
|
|
Logger.i(_tag,
|
|
'本轮下行音频 ${_respondingBytes}B ≈ ${audioMs}ms(按16k算)，实际用时 ${ms}ms');
|
|
}
|
|
|
|
/// 估算设备什么时候把这一轮播完，然后回 `LocalRespondingEnded`。
|
|
void _schedulePlayoutDone() {
|
|
_cancelPlayoutTimer();
|
|
const bytesPerSecond = _deviceRate * 2;
|
|
final totalMs = _respondingBytes * 1000 ~/ bytesPerSecond;
|
|
final elapsedMs = DateTime.now()
|
|
.difference(_respondingStartedAt ?? DateTime.now())
|
|
.inMilliseconds;
|
|
// 上限 10 分钟，跟原生下行队列的容量对齐
|
|
final remainMs = (totalMs - elapsedMs).clamp(0, 600000);
|
|
Logger.i(_tag, '预计还需 ${remainMs}ms 播完（已推 ${totalMs}ms 音频）');
|
|
_playoutTimer = Timer(Duration(milliseconds: remainMs), () {
|
|
if (!isActive.value) return;
|
|
_svc.notifyLocalRespondingEnded();
|
|
_gateTimer = Timer(_gateTail, _closeGate);
|
|
if (_quitAfterPlayout) {
|
|
_quitAfterPlayout = false;
|
|
Logger.i(_tag, '告别语已播完，按 quit 指令结束会话');
|
|
_teardown(notifyDevice: true, playEndTone: false);
|
|
}
|
|
});
|
|
}
|
|
|
|
void _cancelPlayoutTimer() {
|
|
_playoutTimer?.cancel();
|
|
_playoutTimer = null;
|
|
}
|
|
|
|
// ---------------- 结束 ----------------
|
|
|
|
/// 主动结束：发 ai.exit，等设备回 hangup；超时就本地强制收尾。
|
|
Future<void> requestStop() async {
|
|
if (!isActive.value) return;
|
|
Logger.i(_tag, '请求设备退出 AI 模式');
|
|
final s = _session;
|
|
if (s != null) await _sendExit(s);
|
|
_stopAckTimer?.cancel();
|
|
_stopAckTimer = Timer(_stopAckTimeout, () {
|
|
if (!isActive.value) return;
|
|
Logger.w(_tag, '${_stopAckTimeout.inSeconds}s 未收到设备的结束应答，本地强制结束');
|
|
_teardown(notifyDevice: false);
|
|
});
|
|
}
|
|
|
|
Future<void> _sendExit(DeviceSession s) async {
|
|
if (s.state != DeviceConnectionState.ready) return;
|
|
try {
|
|
await s.invokeFeature(DeviceFeatures.aiExit);
|
|
} catch (e) {
|
|
Logger.w(_tag, '发送 ai.exit 失败: $e');
|
|
}
|
|
}
|
|
|
|
/// [notifyDevice] 为 true 时补发 ai.exit：不是设备主导的结束，必须告诉设备退出。
|
|
/// [playEndTone] 为 false 用于设备已经断连的场景。
|
|
Future<void> _teardown({
|
|
required bool notifyDevice,
|
|
bool playEndTone = true,
|
|
}) async {
|
|
if (_tearingDown) return;
|
|
_tearingDown = true;
|
|
try {
|
|
await _doTeardown(notifyDevice: notifyDevice, playEndTone: playEndTone);
|
|
} finally {
|
|
_tearingDown = false;
|
|
}
|
|
}
|
|
|
|
Future<void> _doTeardown({
|
|
required bool notifyDevice,
|
|
bool playEndTone = true,
|
|
}) async {
|
|
_stopAckTimer?.cancel();
|
|
_stopAckTimer = null;
|
|
_idleTimer?.cancel();
|
|
_idleTimer = null;
|
|
_cancelPlayoutTimer();
|
|
_micAccum.clear();
|
|
|
|
if (isActive.value && playEndTone) {
|
|
// 先把还没播完的 AI 语音丢掉，不然「咚」要排在几十秒的队尾
|
|
await _spk?.discardPending();
|
|
await _playCue(CueTone.dong(sampleRate: _deviceRate), waitForPlayout: true);
|
|
}
|
|
_closeGate();
|
|
|
|
final wasActive = isActive.value;
|
|
isActive.value = false;
|
|
|
|
_store.dropIfEmpty(_streamingUser);
|
|
_streamingUser = null;
|
|
_store.dropIfEmpty(_streamingAssistant);
|
|
_streamingAssistant = null;
|
|
if (wasActive) _store.persist();
|
|
|
|
await _eventSub?.cancel();
|
|
_eventSub = null;
|
|
await _audioSub?.cancel();
|
|
_audioSub = null;
|
|
await _micSub?.cancel();
|
|
_micSub = null;
|
|
|
|
await _spk?.close();
|
|
_spk = null;
|
|
await _mic?.close();
|
|
_mic = null;
|
|
await _svc.stop();
|
|
|
|
final s = _session;
|
|
if (wasActive && notifyDevice && s != null) await _sendExit(s);
|
|
_session = null;
|
|
if (wasActive) {
|
|
Logger.i(_tag, '设备 AI 会话已结束 (上行 $_micPackets 包 / 下行 $_downPackets 包)');
|
|
await _resumePhonePage();
|
|
}
|
|
}
|
|
|
|
// ---------------- 与手机 EMAI 页互斥 ----------------
|
|
|
|
void attachPhonePage(EmaiSessionOwner page) => _phonePage = page;
|
|
|
|
void detachPhonePage(EmaiSessionOwner page) {
|
|
if (identical(_phonePage, page)) _phonePage = null;
|
|
}
|
|
|
|
Future<void> _yieldPhonePage() async {
|
|
final ctrl = _phonePage;
|
|
if (ctrl == null) return;
|
|
Logger.i(_tag, '手机 EMAI 页正开着，让它让出会话');
|
|
try {
|
|
await ctrl.yieldToEarphone();
|
|
} catch (e) {
|
|
Logger.w(_tag, '通知 EMAI 页让出失败: $e');
|
|
}
|
|
}
|
|
|
|
Future<void> _resumePhonePage() async {
|
|
final ctrl = _phonePage;
|
|
if (ctrl == null) return;
|
|
try {
|
|
await ctrl.resumeFromEarphone();
|
|
} catch (e) {
|
|
Logger.w(_tag, '通知 EMAI 页恢复失败: $e');
|
|
}
|
|
}
|
|
|
|
String _currentUserId() {
|
|
try {
|
|
return user_info.User.isLoggedIn()
|
|
? user_info.User.instance.uid
|
|
: 'eaimar-guest';
|
|
} catch (_) {
|
|
return 'eaimar-guest';
|
|
}
|
|
}
|
|
}
|
|
|
|
/// 手机 EMAI 页实现这个接口，让设备会话能在不反向依赖 modules 层的前提下
|
|
/// 通知它让出/恢复。EmaiController 在 onInit/onClose 里
|
|
/// 调 [DeviceAiSessionService.attachPhonePage] / [DeviceAiSessionService.detachPhonePage]。
|
|
abstract class EmaiSessionOwner {
|
|
/// 设备接管：停掉本页的播放与会话，并且不要自动重连
|
|
Future<void> yieldToEarphone();
|
|
|
|
/// 设备结束：把本页的会话接回来
|
|
Future<void> resumeFromEarphone();
|
|
}
|
|
|