feat(social): add listening activity, shared rooms and modern chat

apps/mobile/src/player/controller.ts

@@ -1,6 +1,10 @@
 import NetInfo from '@react-native-community/netinfo';
 import {
   EventBuffer,
+  createActivityPublisher,
+  type ActivityPublisher,
+  ListeningCoordinator,
+  type ListeningRoom,
   WaveCoordinator,
   EARLY_SKIP_MS,
   type WaveInfo,
@@ -32,6 +36,7 @@ export { offlineWave };
 export type { WaveInfo } from '@pipu/core';
 
 export interface PlayerState {
+  listening?: import('@pipu/core').ListeningClientState;
   ready: boolean;
   track: Track | null;
   queue: Track[];
@@ -72,6 +77,11 @@ async function quality(): Promise<Quality> {
  * реакции и бесконечная волна. Один экземпляр на процесс: им пользуются и экраны, и фоновый сервис.
  */
 class Controller {
+  private activity: ActivityPublisher | null = null;
+  private listening: ListeningCoordinator | null = null;
+  private interrupted = false;
+  private remoteRoom: string | null = null;
+  private queueVersion = 0;
   private session: AuthSession | null = null;
   private server = '';
   private events: EventBuffer | null = null;
@@ -104,12 +114,27 @@ class Controller {
 
   private update(patch: Partial<PlayerState>) {
     this.state = { ...this.state, ...patch };
+    this.activity?.update(this.state);
+    this.listening?.update();
     for (const fn of this.listeners) fn();
   }
 
   /** Привязка к вошедшему пользователю: события и реакции уходят на его сервер, без сети — копятся в SQLite. */
   attach(session: AuthSession | null, server: string, userId: string | null) {
     if (this.session === session) return;
+    this.activity?.dispose();
+    this.listening?.dispose();
+    this.listening = null;
+    this.activity = session && userId ? createActivityPublisher(session, eventId(Date.now())) : null;
+    if (session && this.activity) {
+      this.listening = new ListeningCoordinator(session, this.activity.deviceId, {
+        read: this.getState,
+        pause: () => { this.queueVersion++; this.leaveWave(); void TrackPlayer.pause().catch(() => undefined); },
+        apply: (room, position, current) => this.syncListening(room, position, current),
+        changed: listening => this.update({ listening }),
+      });
+      this.listening.start();
+    }
     void this.events?.flush();
     this.session = session;
     this.server = server;
@@ -240,35 +265,49 @@ class Controller {
   }
 
   async playList(tracks: Track[], index: number, context: PlayContext) {
+    if (this.listening?.locked) return;
+    const version = ++this.queueVersion;
+    const current = () => version === this.queueVersion && !this.listening?.locked;
     const list = tracks.filter(playable);
     const target = tracks[index];
     if (!target || !list.length) return;
     await this.setup();
+    if (!current()) return;
+    const native = await this.toRntp(list);
+    if (!current()) return;
     this.leaveWave();
     this.finishAttempt(this.lastPositionMs / 1000);
     const start = Math.max(list.indexOf(target), 0);
     this.update({ queue: list, context, index: start, track: list[start] ?? null });
     await TrackPlayer.reset();
-    await TrackPlayer.add(await this.toRntp(list));
+    if (!current()) return;
+    await TrackPlayer.add(native);
+    if (!current()) return;
     await TrackPlayer.skip(start);
+    if (!current()) return;
     await TrackPlayer.play();
   }
 
   toggle() {
+    if (this.listening?.locked) return;
     void (this.state.playing ? TrackPlayer.pause() : TrackPlayer.play());
   }
 
   next() {
+    if (this.listening?.locked) return;
     void TrackPlayer.skipToNext().catch(() => undefined);
   }
 
   async prev() {
+    if (this.listening?.locked) return;
     const { position } = await TrackPlayer.getProgress();
+    if (this.listening?.locked) return;
     if (position > 3) await TrackPlayer.seekTo(0);
     else await TrackPlayer.skipToPrevious().catch(() => TrackPlayer.seekTo(0));
   }
 
   seek(ms: number) {
+    if (this.listening?.locked) return;
     const t = this.state.track;
     if (t) this.events?.push({ type: 'seek', track_id: t.id, from_ms: this.lastPositionMs, position_ms: ms });
     this.attempt?.seek(ms);
@@ -306,6 +345,7 @@ class Controller {
   // --- «Моя волна» ---
 
   async startWave(activity: string | null, mood: string | null) {
+    if (this.listening?.locked) return;
     if (!this.session) return;
     await this.setup();
     this.leaveWave();
@@ -335,6 +375,7 @@ class Controller {
   }
 
   async setWaveContext(activity: string | null, mood: string | null) {
+    if (this.listening?.locked) return;
     const wave = this.state.wave;
     if (!wave || !this.session) return this.startWave(activity, mood);
     const version = this.wavePolicy.changeContext(wave.sessionId);
@@ -422,18 +463,28 @@ class Controller {
 
   /** Восстановить последний трек и позицию (на паузе, без автозапуска). */
   async restore() {
-    if (!this.session || this.state.track) return;
+    if (!this.session || this.state.track || this.listening?.locked) return;
+    const session = this.session;
+    const initial = this.state;
+    const current = () => this.session === session && this.state.queue === initial.queue && !this.state.track && !this.listening?.locked;
     await this.setup();
+    if (!current()) return;
     try {
-      const st = unwrap(await this.session.client.GET('/api/v1/me/playback-state'));
+      const st = unwrap(await session.client.GET('/api/v1/me/playback-state'));
+      if (!current()) return;
       if (!st.track_id || !st.queue.length) return;
-      const res = unwrap(await this.session.client.POST('/api/v1/tracks/batch', { body: { ids: st.queue } }));
+      const res = unwrap(await session.client.POST('/api/v1/tracks/batch', { body: { ids: st.queue } }));
+      if (!current()) return;
       const tracks = res.items.filter(playable);
       const idx = Math.max(tracks.findIndex((t) => t.id === st.track_id), 0);
       if (!tracks.length) return;
+      const native = await this.toRntp(tracks);
+      if (!current()) return;
       this.update({ queue: tracks, index: idx, track: tracks[idx] ?? null, context: (st.context as PlayContext | null) ?? null });
       await TrackPlayer.reset();
-      await TrackPlayer.add(await this.toRntp(tracks));
+      if (this.state.queue !== tracks || this.listening?.locked) return;
+      await TrackPlayer.add(native);
+      if (this.state.queue !== tracks || this.listening?.locked) return;
       await TrackPlayer.skip(idx, tracks[idx]?.id === st.track_id ? st.position_ms / 1000 : 0);
     } catch {
       // офлайн или нет сохранённого состояния
@@ -441,6 +492,7 @@ class Controller {
   }
 
   async reset() {
+    this.queueVersion++;
     this.wavePolicy.activate(null);
     this.attempt = null;
     this.update({ queue: [], track: null, index: 0, playing: false, positionMs: 0, wave: null, context: null });
@@ -451,6 +503,35 @@ class Controller {
     this.save();
     void this.events?.flush();
   }
+
+  play() { if (!this.listening?.locked) void TrackPlayer.play(); }
+  pause() { if (!this.listening?.locked) void TrackPlayer.pause(); }
+  setInterrupted(paused: boolean) { this.interrupted = paused; }
+  beginListeningAudio() { this.listening?.beginAudio(); }
+  private async syncListening(room: ListeningRoom, position: number, current: () => boolean) {
+    if (!room.track_id) { await TrackPlayer.pause(); return; }
+    await this.setup();
+    if (!current()) return;
+    if (this.remoteRoom !== room.id || this.state.track?.id !== room.track_id || this.state.queue.length !== 1 || this.state.wave) {
+      const track = unwrap(await this.session!.client.GET('/api/v1/tracks/{id}', { params: { path: { id: room.track_id } } }));
+      const native = await this.toRntp([track]);
+      if (!current()) return;
+      this.remoteRoom = room.id;
+      this.leaveWave(); this.finishAttempt(this.lastPositionMs / 1000);
+      await TrackPlayer.pause();
+      if (!current()) return;
+      this.update({ queue: [track], track, index: 0, durationMs: track.duration_ms, positionMs: 0, context: { type: 'queue' }, wave: null });
+      await TrackPlayer.reset();
+      if (!current()) return;
+      await TrackPlayer.add(native);
+    }
+    if (!current()) return;
+    const target = Math.min(position, Math.max(0, this.state.durationMs - 100));
+    if (Math.abs(this.state.positionMs - target) > 1500) await TrackPlayer.seekTo(target / 1000);
+    if (!current()) { await TrackPlayer.pause(); return; }
+    if (room.playing && !this.interrupted) { if (!this.state.playing) await TrackPlayer.play(); }
+    else if (this.state.playing) await TrackPlayer.pause();
+  }
 }
 
 export const player = new Controller();