File size: 43,515 Bytes
8730258
e304677
9366b67
 
e304677
 
 
 
 
f15e207
9366b67
 
bdbd6d6
 
 
de75730
e304677
 
 
2882d76
e304677
 
 
 
b293436
bdbd6d6
04560b1
bdbd6d6
 
 
e304677
de75730
e304677
 
 
d3b963b
 
 
 
2882d76
e304677
bdbd6d6
 
9366b67
e304677
2882d76
 
5a069c2
2882d76
 
 
 
 
b293436
2882d76
5a069c2
 
 
9366b67
 
2882d76
 
 
 
 
9847ddb
9174608
 
 
 
9847ddb
9174608
 
 
9847ddb
 
 
94a9cda
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0c2e821
9dcd4eb
2882d76
9dcd4eb
 
2882d76
 
 
 
 
 
bdbd6d6
 
2882d76
9dcd4eb
8661c74
2882d76
8661c74
2882d76
8661c74
 
 
 
 
 
 
 
 
 
 
 
19e54d7
8661c74
9366b67
bdbd6d6
2882d76
9dcd4eb
1df498e
 
 
 
 
 
 
 
 
 
 
 
2882d76
 
 
 
 
 
 
 
 
 
 
 
 
9dcd4eb
 
2882d76
9dcd4eb
63a702e
 
 
 
 
 
 
 
 
 
 
0498a74
 
 
 
 
 
 
 
 
 
 
 
5333310
2882d76
5333310
2882d76
 
 
 
 
 
 
 
 
 
 
9dcd4eb
2882d76
9dcd4eb
d3b963b
 
 
 
 
 
 
 
 
 
 
 
9366b67
 
 
b293436
6d2749a
b293436
03d7604
b293436
fe64d92
 
1df498e
e7c077e
 
 
 
 
fe64d92
5a069c2
b293436
fe64d92
 
b293436
 
 
 
9dcd4eb
bdbd6d6
63a702e
 
0498a74
9847ddb
94a9cda
b293436
fe64d92
 
 
 
bdbd6d6
b293436
fe64d92
 
 
b293436
fe64d92
b293436
fe64d92
 
bdbd6d6
b293436
 
bdbd6d6
 
 
b293436
 
bdbd6d6
 
 
fe64d92
 
 
 
 
 
 
 
 
 
 
5a069c2
d3b963b
 
 
 
 
 
c4e4eed
fe64d92
 
01c01bb
fe64d92
 
 
 
01c01bb
 
 
fe64d92
5a069c2
d3b963b
 
 
 
 
0498a74
 
 
 
 
fe64d92
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9366b67
 
e304677
bdbd6d6
2882d76
 
bdbd6d6
83671f4
c4e4eed
 
 
28cb01f
c4e4eed
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
d3b963b
 
 
 
 
 
 
 
 
 
0ca5aac
 
 
 
d3b963b
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0ca5aac
 
 
 
 
 
 
 
 
 
 
 
d3b963b
 
 
 
 
 
 
 
 
 
 
 
0ca5aac
 
d3b963b
 
 
 
 
 
 
 
 
 
 
 
0ca5aac
 
 
 
 
 
 
d3b963b
 
 
 
 
 
 
 
 
0ca5aac
d3b963b
 
 
 
9389ef0
fe64d92
bdbd6d6
 
9366b67
fe64d92
2882d76
bdbd6d6
9366b67
fe64d92
bdbd6d6
9389ef0
9366b67
 
 
bdbd6d6
 
 
 
2882d76
bdbd6d6
9366b67
 
fe64d92
b293436
fe64d92
 
2882d76
 
 
fe64d92
 
2882d76
 
bdbd6d6
9366b67
 
 
5a069c2
 
 
 
 
 
 
 
 
 
d24a79a
 
5a069c2
 
 
 
 
 
 
d24a79a
5a069c2
 
 
 
 
 
 
d24a79a
 
 
 
5a069c2
 
 
 
 
 
 
 
 
d24a79a
 
5a069c2
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
fe64d92
9366b67
fe64d92
2882d76
9174608
9847ddb
fe64d92
9366b67
bdbd6d6
 
83671f4
d1a2d70
fe64d92
d1a2d70
fe64d92
 
 
 
01c01bb
 
 
 
 
 
 
 
 
 
 
 
a0461af
9366b67
 
 
60f76d1
fe64d92
 
9847ddb
 
fe64d92
9847ddb
fe64d92
9847ddb
 
 
94a9cda
fe64d92
94a9cda
 
 
fe64d92
 
 
 
 
 
 
94a9cda
 
fe64d92
 
 
 
 
 
 
94a9cda
 
fe64d92
 
63a702e
 
0498a74
fe64d92
 
9dcd4eb
 
fe64d92
28cb01f
 
2882d76
8962955
 
 
 
 
 
 
 
28cb01f
 
 
 
 
 
 
 
 
 
 
 
 
 
 
bdbd6d6
 
28cb01f
 
2882d76
 
 
 
bdbd6d6
1df498e
 
 
 
e7c077e
 
 
 
1df498e
28cb01f
0498a74
 
 
 
 
 
 
 
 
 
 
 
9dcd4eb
9366b67
fe64d92
 
 
8661c74
 
 
 
 
 
 
6150a8e
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2882d76
e304677
fe64d92
 
e304677
fe64d92
 
 
 
 
2882d76
e304677
6150a8e
 
 
9dcd4eb
9a88096
 
 
 
 
 
 
 
 
 
1df498e
 
 
 
 
 
e7c077e
 
 
1df498e
e7c077e
 
9a88096
 
 
 
 
 
 
 
 
e7c077e
6150a8e
e7c077e
1df498e
 
2882d76
fe64d92
6150a8e
2882d76
 
fe64d92
6150a8e
2882d76
9dcd4eb
 
5333310
9dcd4eb
bdbd6d6
fe64d92
9dcd4eb
 
bdbd6d6
 
fe64d92
e304677
63a702e
 
 
 
 
 
 
 
 
 
 
 
 
006d3ea
 
 
 
 
63a702e
 
 
 
006d3ea
 
63a702e
 
 
006d3ea
 
63a702e
 
 
 
006d3ea
 
63a702e
0498a74
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9366b67
 
8730258
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" />
    <title>Reachy Mini - Pollen Robotics</title>
    <link rel="preconnect" href="https://fonts.googleapis.com">
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <!-- Login View -->
    <div id="loginView" class="login-view">
        <div class="login-card">
            <img class="login-logo" src="https://raw.githubusercontent.com/pollen-robotics/reachy-mini-desktop-app/develop/src-tauri/icons/128x128.png" alt="Reachy Mini">
            <h2>Reachy Mini</h2>
            <p>Sign in with your HuggingFace account to connect and control your robot remotely.</p>
            <button class="btn-hf" onclick="loginToHuggingFace()">
                <svg width="18" height="18" viewBox="0 0 95 88" fill="currentColor">
                    <path d="M47.5 0C26.3 0 9.1 17.2 9.1 38.4v2.9c0 4.5 1.1 9 3.2 13L0 88h95L82.7 54.3c2.1-4 3.2-8.5 3.2-13v-2.9C85.9 17.2 68.7 0 47.5 0z"/>
                </svg>
                Sign in with Hugging Face
            </button>
        </div>
    </div>

    <!-- Main App -->
    <div id="mainApp" class="hidden">
        <header class="header">
            <div class="logo">
                <img src="https://raw.githubusercontent.com/pollen-robotics/reachy-mini-desktop-app/develop/src-tauri/icons/128x128.png" alt="Reachy Mini">
                <div class="logo-text">Reachy Mini <span>by Pollen Robotics</span></div>
            </div>
            <div class="user-section">
                <!-- Daemon version is filled in once the WebRTC data channel
                     is open (via robot.getVersion()). Hidden until then so
                     we don't show a stale/empty badge during connect. -->
                <div id="daemonVersion" class="user-badge hidden" title="Daemon version"></div>
                <div class="user-badge"><span id="username">@user</span></div>
                <button class="btn-logout" onclick="logout()">Sign out</button>
            </div>
        </header>

        <div class="app-container">
            <!-- Video -->
            <div class="video-container">
                <video id="remoteVideo" autoplay playsinline muted></video>

                <div class="video-overlay-top">
                    <div class="connection-badge">
                        <div class="status-indicator" id="statusIndicator"></div>
                        <span id="statusText">Disconnected</span>
                    </div>
                    <div class="robot-name" id="robotName"></div>
                    <div class="latency-badge hidden" id="latencyBadge">
                        <span id="latencyValue">--</span>
                    </div>
                </div>

                <div class="video-overlay-bottom">
                    <div class="video-controls">
                        <button class="btn btn-secondary" id="connectBtn" onclick="connectSignaling()">Connect</button>
                        <button class="btn btn-primary" id="startBtn" onclick="startStream()" disabled>Start</button>
                        <button class="btn btn-danger" id="stopBtn" onclick="stopStream()" disabled>Stop</button>
                        <button class="btn btn-mute muted" id="muteBtn" onclick="toggleMute()" disabled>
                            <svg id="speakerOffIcon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <polygon points="11 5 6 9 2 9 2 15 6 15 11 19 11 5"></polygon>
                                <line x1="23" y1="9" x2="17" y2="15"></line>
                                <line x1="17" y1="9" x2="23" y2="15"></line>
                            </svg>
                            <svg id="speakerOnIcon" class="hidden" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <polygon points="11 5 6 9 2 9 2 15 6 15 11 19 11 5"></polygon>
                                <path d="M19.07 4.93a10 10 0 0 1 0 14.14M15.54 8.46a5 5 0 0 1 0 7.07"></path>
                            </svg>
                            <span id="muteText">Unmute</span>
                        </button>
                        <button class="btn btn-mute muted" id="micBtn" onclick="toggleMic()" disabled>
                            <svg id="micOffIcon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <line x1="1" y1="1" x2="23" y2="23"></line>
                                <path d="M9 9v3a3 3 0 0 0 5.12 2.12M15 9.34V4a3 3 0 0 0-5.94-.6"></path>
                                <path d="M17 16.95A7 7 0 0 1 5 12v-2m14 0v2c0 .76-.13 1.49-.35 2.17"></path>
                                <line x1="12" y1="19" x2="12" y2="23"></line>
                                <line x1="8" y1="23" x2="16" y2="23"></line>
                            </svg>
                            <svg id="micOnIcon" class="hidden" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                                <path d="M12 1a3 3 0 0 0-3 3v8a3 3 0 0 0 6 0V4a3 3 0 0 0-3-3z"></path>
                                <path d="M19 10v2a7 7 0 0 1-14 0v-2"></path>
                                <line x1="12" y1="19" x2="12" y2="23"></line>
                                <line x1="8" y1="23" x2="16" y2="23"></line>
                            </svg>
                            <span id="micText">Mic Off</span>
                        </button>
                    </div>
                </div>
            </div>


            <!-- Robot Selector -->
            <div id="robotSelector" class="panel hidden">
                <div class="panel-header">Available Robots</div>
                <div class="panel-content">
                    <div id="robotList" class="robot-list">
                        <div style="color: var(--text-muted); font-size: 0.85em;">Searching...</div>
                    </div>
                </div>
            </div>

            <!-- Head Control - RPY Sliders -->
            <div class="panel">
                <div class="panel-header">Head Orientation</div>
                <div class="panel-content">
                    <div class="slider-row">
                        <span class="slider-label">Roll</span>
                        <input type="range" class="slider" id="rollSlider" min="-20" max="20" value="0" step="0.5">
                        <span class="slider-value" id="rollValue">0.0°</span>
                    </div>
                    <div class="slider-row">
                        <span class="slider-label">Pitch</span>
                        <input type="range" class="slider" id="pitchSlider" min="-30" max="30" value="0" step="0.5">
                        <span class="slider-value" id="pitchValue">0.0°</span>
                    </div>
                    <div class="slider-row">
                        <span class="slider-label">Yaw</span>
                        <input type="range" class="slider" id="yawSlider" min="-160" max="160" value="0" step="0.5">
                        <span class="slider-value" id="yawValue">0.0°</span>
                    </div>
                </div>
            </div>

            <!-- Body / Base Yaw -->
            <div class="panel">
                <div class="panel-header">Body</div>
                <div class="panel-content">
                    <div class="slider-row">
                        <span class="slider-label">Yaw</span>
                        <input type="range" class="slider" id="bodyYawSlider" min="-160" max="160" value="0" step="1">
                        <span class="slider-value" id="bodyYawValue"></span>
                    </div>
                </div>
            </div>

            <!-- Antennas -->
            <div class="panel">
                <div class="panel-header">Antennas</div>
                <div class="panel-content">
                    <div class="slider-row">
                        <span class="slider-label">Right</span>
                        <input type="range" class="slider" id="rightAntSlider" min="-175" max="175" value="0">
                        <span class="slider-value" id="rightAntValue"></span>
                    </div>
                    <div class="slider-row">
                        <span class="slider-label">Left</span>
                        <input type="range" class="slider" id="leftAntSlider" min="-175" max="175" value="0">
                        <span class="slider-value" id="leftAntValue"></span>
                    </div>
                </div>
            </div>

            <!-- Animations -->
            <div class="panel">
                <div class="panel-header">Animations</div>
                <div class="panel-content">
                    <div class="sound-row">
                        <button class="btn btn-primary" id="btnWakeUp" onclick="playWakeUp()" disabled>Wake up</button>
                        <button class="btn btn-secondary" id="btnGotoSleep" onclick="playGotoSleep()" disabled>Go to sleep</button>
                    </div>
                </div>
            </div>

            <!-- Torque -->
            <div class="panel">
                <div class="panel-header">Torque</div>
                <div class="panel-content">
                    <div class="sound-row">
                        <!-- Label and action flip based on the current motor
                             mode, which is surfaced via the 'state' event. -->
                        <button class="btn btn-primary" id="btnTorqueToggle" onclick="toggleTorque()" disabled>Torque …</button>
                    </div>
                </div>
            </div>

            <!-- Sound -->
            <div class="panel">
                <div class="panel-header">Sound</div>
                <div class="panel-content">
                    <div class="sound-row">
                        <input type="text" class="sound-input" id="soundInput" placeholder="Sound file...">
                        <button class="btn btn-primary" id="btnPlaySound" onclick="playSound()" disabled>Play</button>
                    </div>
                    <div class="sound-presets">
                        <span class="preset-chip" onclick="playSoundPreset('wake_up.wav')">wake_up</span>
                        <span class="preset-chip" onclick="playSoundPreset('go_sleep.wav')">go_sleep</span>
                        <span class="preset-chip" onclick="playSoundPreset('yes.wav')">yes</span>
                        <span class="preset-chip" onclick="playSoundPreset('no.wav')">no</span>
                    </div>
                </div>
            </div>

            <!-- Volume -->
            <div class="panel">
                <div class="panel-header">Volume</div>
                <div class="panel-content">
                    <div class="slider-row">
                        <span class="slider-label">Speaker</span>
                        <input type="range" class="slider" id="volumeSlider" min="0" max="100" value="50" disabled>
                        <span class="slider-value" id="volumeValue">--</span>
                    </div>
                </div>
            </div>

        </div>
    </div>

    <script type="module">
        import { ReachyMini, matrixToRpy, radToDeg, rpyToMatrix, degToRad } from "https://cdn.jsdelivr.net/gh/pollen-robotics/reachy_mini@main/js/reachy-mini.js";

        const robot = new ReachyMini({ appName: "Reachy Mini WebRTC Demo" });

        let selectedRobotId = null;
        let headSlidersActive = false;
        let bodyYawSliderActive = false;
        // Last body yaw the user committed via the slider, in degrees.
        // Used to compute the delta we need to subtract from the head yaw
        // command so the head visually fixates a point in world frame
        // while the base rotates.
        let lastBodyYawDeg = 0;
        let detachVideo = null;
        let latencyIntervalId = null;

        // Export functions for inline onclick handlers
        window.loginToHuggingFace = () => robot.login();
        window.logout = logout;
        window.connectSignaling = connectSignaling;
        window.startStream = startStream;
        window.stopStream = stopStream;
        window.playSound = playSound;
        window.playSoundPreset = playSoundPreset;
        window.playWakeUp = playWakeUp;
        window.playGotoSleep = playGotoSleep;
        window.toggleTorque = toggleTorque;
        window.toggleMute = toggleMute;
        window.toggleMic = toggleMic;

        document.addEventListener('DOMContentLoaded', async () => {
            if (await robot.authenticate()) {
                showMainApp();
            } else {
                showLogin();
            }
            initSliders();
            initRobotEvents();
        });

        // ===================== Auth =====================
        function logout() {
            if (detachVideo) { detachVideo(); detachVideo = null; }
            robot.logout();
            showLogin();
        }

        function showLogin() {
            document.getElementById('loginView').classList.remove('hidden');
            document.getElementById('mainApp').classList.add('hidden');
        }

        function showMainApp() {
            document.getElementById('loginView').classList.add('hidden');
            document.getElementById('mainApp').classList.remove('hidden');
            document.getElementById('username').textContent = '@' + robot.username;
        }

        // ===================== Robot Events =====================
        function initRobotEvents() {
            robot.addEventListener('robotsChanged', (e) => displayRobots(e.detail.robots));

            robot.addEventListener('streaming', () => {
                updateStatus('connected', 'Connected');
                enableControls(true);
                document.getElementById('robotSelector').classList.add('hidden');
                startLatencyDisplay();
                // Data channel is open — fetch daemon version (one-shot) and
                // sync the volume slider to the robot's current level. Both
                // swallow failures so a missing command handler or an
                // unsupported audio platform doesn't break the UI.
                fetchDaemonVersionOnce();
                syncVolumeSlider();
                ensureAwakeOnce();
            });

            robot.addEventListener('sessionStopped', (e) => {
                document.getElementById('startBtn').disabled = !selectedRobotId;
                document.getElementById('stopBtn').disabled = true;
                document.getElementById('robotSelector').classList.remove('hidden');
                enableControls(false);
                // e.detail.message is set when the stop was server-initiated (e.g.
                // a local Python app took over the robot). null for user-initiated.
                updateStatus('connected', e.detail?.message || 'Connected');
                updateMicButton();
                stopLatencyDisplay();
                // Disable the volume slider and clear the version pill — they
                // only make sense while the data channel is open.
                document.getElementById('volumeSlider').disabled = true;
                document.getElementById('volumeValue').textContent = '--';
                document.getElementById('daemonVersion').classList.add('hidden');
                // Reset the torque button label so it doesn't claim a stale
                // state between sessions.
                const tb = document.getElementById('btnTorqueToggle');
                tb.textContent = 'Torque …';
                delete tb.dataset.currentMode;
            });

            robot.addEventListener('state', (e) => updateStateDisplay(e.detail));

            robot.addEventListener('micSupported', () => {
                enableControls(robot.state === 'streaming');
            });

            robot.addEventListener('disconnected', () => {
                updateStatus('', 'Disconnected');
                document.getElementById('connectBtn').disabled = false;
                document.getElementById('robotSelector').classList.add('hidden');
            });

            robot.addEventListener('error', (e) => {
                console.error(`[${e.detail.source}]`, e.detail.error);
                if (e.detail.source === 'webrtc') {
                    updateStatus('', 'Connection lost');
                }
            });
        }

        // ===================== Connection =====================
        function updateStatus(status, text) {
            document.getElementById('statusIndicator').className = 'status-indicator ' + status;
            document.getElementById('statusText').textContent = text;
        }

        // ---- Auto-wake on session start ----
        //
        // If the robot is in the sleep pose (torque off, head resting on
        // base), every setHeadRpyDeg / setAntennasDeg call from the UI is
        // silently ignored and the app looks broken. ensureAwake() is a
        // no-op when already awake (including gravity-compensation), so
        // we call it unconditionally after the data channel opens.
        async function ensureAwakeOnce() {
            // Guard for a stale CDN-cached lib predating ensureAwake.
            if (typeof robot.ensureAwake !== 'function') {
                console.warn(
                    'robot.ensureAwake is not a function — the reachy-mini.js ' +
                    'lib loaded from CDN is older than the webrtc_example UI. ' +
                    'Purge jsdelivr and hard-refresh the page.'
                );
                return;
            }
            try {
                await robot.ensureAwake();
            } catch (e) {
                // Data channel may have closed mid-wake; non-fatal.
                console.warn('ensureAwake failed:', e);
            }
        }

        // ---- Daemon version (fetched once per session over WebRTC) ----
        async function fetchDaemonVersionOnce() {
            try {
                const v = await robot.getVersion();
                if (!v) return;
                const el = document.getElementById('daemonVersion');
                el.textContent = `Daemon v${v}`;
                el.classList.remove('hidden');
            } catch (e) {
                // Data channel closed mid-request, or lib version too old
                // to support get_version. Non-fatal — but log at WARN so
                // a stale CDN-cached lib (missing the method) is visible
                // in the browser console without "Verbose" level turned on.
                console.warn('getVersion failed:', e);
            }
        }

        // ---- Volume slider wiring ----
        //
        // Two events matter:
        //   - 'input'   fires continuously while dragging — used for the
        //               live "75%" label so the UI feels responsive.
        //   - 'change'  fires on release — the only moment we actually
        //               call setVolume over WebRTC. Avoids spamming the
        //               robot with one command per pixel of drag.
        //
        // syncVolumeSlider() runs on streaming-start to pull the robot's
        // real current volume so the slider reflects reality rather than
        // the default "50" in the markup.
        async function syncVolumeSlider() {
            const slider = document.getElementById('volumeSlider');
            const label = document.getElementById('volumeValue');
            // Early detection: if the loaded JS lib predates the volume
            // commands (stale jsdelivr cache, old branch), fail loudly
            // rather than silently rendering "n/a".
            if (typeof robot.getVolume !== 'function') {
                console.warn(
                    'robot.getVolume is not a function — the reachy-mini.js ' +
                    'lib loaded from CDN is older than the webrtc_example UI. ' +
                    'Purge jsdelivr and hard-refresh the page.'
                );
                label.textContent = 'lib';
                return;
            }
            try {
                const v = await robot.getVolume();
                if (v == null) {
                    // Volume control unavailable (unsupported platform or
                    // audio stack down) — keep the slider disabled.
                    label.textContent = 'n/a';
                    return;
                }
                slider.value = v;
                label.textContent = `${v}%`;
                slider.disabled = false;
            } catch (e) {
                // Log at WARN so it's visible without "Verbose" level.
                console.warn('getVolume failed:', e);
                label.textContent = 'n/a';
            }
        }

        (function initVolumeSlider() {
            const slider = document.getElementById('volumeSlider');
            const label = document.getElementById('volumeValue');
            slider.addEventListener('input', () => {
                label.textContent = `${slider.value}%`;
            });
            slider.addEventListener('change', async () => {
                const requested = parseInt(slider.value, 10);
                if (typeof robot.setVolume !== 'function') {
                    console.warn(
                        'robot.setVolume is not a function — old JS lib on CDN; ' +
                        'purge jsdelivr and hard-refresh.'
                    );
                    return;
                }
                try {
                    const applied = await robot.setVolume(requested);
                    if (applied != null) {
                        // Server may clamp/round — reflect the truth back
                        // into the UI so the slider isn't a lie.
                        slider.value = applied;
                        label.textContent = `${applied}%`;
                    }
                } catch (e) {
                    console.warn('setVolume failed:', e);
                }
            });
        })();

        async function connectSignaling() {
            if (!robot.isAuthenticated) return;
            updateStatus('connecting', 'Connecting...');
            document.getElementById('connectBtn').disabled = true;
            try {
                await robot.connect();
                updateStatus('connected', 'Connected');
                document.getElementById('robotSelector').classList.remove('hidden');
            } catch (e) {
                console.error('Connection failed:', e);
                updateStatus('', 'Disconnected');
                document.getElementById('connectBtn').disabled = false;
            }
        }

        function displayRobots(robots) {
            const list = document.getElementById('robotList');
            list.innerHTML = '';
            if (!robots?.length) {
                list.innerHTML = '<div style="color: var(--text-muted);">No robots online</div>';
                document.getElementById('startBtn').disabled = true;
                return;
            }
            for (const r of robots) {
                const div = document.createElement('div');
                div.className = 'robot-card' + (r.id === selectedRobotId ? ' selected' : '');
                div.innerHTML = `<div class="name">${r.meta?.name || 'Reachy Mini'}</div><div class="id">${r.id.slice(0, 12)}...</div>`;
                div.onclick = () => {
                    document.querySelectorAll('.robot-card').forEach(e => e.classList.remove('selected'));
                    div.classList.add('selected');
                    selectedRobotId = r.id;
                    document.getElementById('robotName').textContent = r.meta?.name || 'Reachy Mini';
                    document.getElementById('startBtn').disabled = false;
                };
                list.appendChild(div);
            }
        }

        // ===================== Latency =====================
        function startLatencyDisplay() {
            const badge = document.getElementById('latencyBadge');
            const label = document.getElementById('latencyValue');
            badge.classList.remove('hidden');

            latencyIntervalId = setInterval(async () => {
                const video = document.getElementById('remoteVideo');
                let bufLagMs = null;
                let rttMs = null;
                let vidJitterMs = null;
                let audJitterMs = null;

                // Buffer lag (how far behind live edge)
                if (video && video.buffered && video.buffered.length > 0) {
                    const end = video.buffered.end(video.buffered.length - 1);
                    bufLagMs = Math.round((end - video.currentTime) * 1000);
                }

                // WebRTC stats: RTT + jitter buffer delay (video & audio)
                if (robot._pc) {
                    try {
                        const stats = await robot._pc.getStats();
                        stats.forEach(report => {
                            if (report.type === 'candidate-pair' && report.currentRoundTripTime != null) {
                                rttMs = Math.round(report.currentRoundTripTime * 1000);
                            }
                            if (report.type === 'inbound-rtp' && report.jitterBufferDelay != null && report.jitterBufferEmittedCount > 0) {
                                const jMs = Math.round((report.jitterBufferDelay / report.jitterBufferEmittedCount) * 1000);
                                if (report.kind === 'video') vidJitterMs = jMs;
                                if (report.kind === 'audio') audJitterMs = jMs;
                            }
                        });
                    } catch (_) { /* no stats yet */ }
                }

                // Display
                const parts = [];
                if (bufLagMs != null) parts.push(`buf ${bufLagMs}ms`);
                if (rttMs != null) parts.push(`rtt ${rttMs}ms`);
                if (vidJitterMs != null) parts.push(`v-jit ${vidJitterMs}ms`);
                if (audJitterMs != null) parts.push(`a-jit ${audJitterMs}ms`);
                label.textContent = parts.length ? parts.join(' · ') : '--';

                // Color based on buffer lag
                badge.classList.remove('good', 'ok', 'bad');
                if (bufLagMs != null) {
                    if (bufLagMs < 200) badge.classList.add('good');
                    else if (bufLagMs < 500) badge.classList.add('ok');
                    else badge.classList.add('bad');
                }
            }, 1000);
        }

        function stopLatencyDisplay() {
            if (latencyIntervalId) { clearInterval(latencyIntervalId); latencyIntervalId = null; }
            const badge = document.getElementById('latencyBadge');
            badge.classList.add('hidden');
            badge.classList.remove('good', 'ok', 'bad');
        }

        // ===================== Session =====================
        async function startStream() {
            if (!selectedRobotId) return;
            updateStatus('connecting', 'Connecting...');
            updateMuteButton();

            detachVideo = robot.attachVideo(document.getElementById('remoteVideo'));

            document.getElementById('startBtn').disabled = true;
            document.getElementById('stopBtn').disabled = false;

            try {
                await robot.startSession(selectedRobotId);
            } catch (e) {
                console.error('Session failed:', e);
                if (detachVideo) { detachVideo(); detachVideo = null; }
                document.getElementById('startBtn').disabled = !selectedRobotId;
                document.getElementById('stopBtn').disabled = true;
                // "robot_busy"           → central refused: another remote JS app is connected.
                // "robot_busy_local_app" → relay refused: a local Python app holds the robot.
                // "local_app_started"    → we were streaming; a local Python app evicted us.
                // "robot_busy_local"     → relay safety net; another session slipped in.
                let msg;
                if (e.reason === 'robot_busy') {
                    msg = `Robot busy — "${e.activeApp}" is already connected`;
                } else if ((e.reason && e.reason.startsWith('robot_busy')) || e.reason === 'local_app_started') {
                    msg = e.message;
                } else {
                    msg = `Session failed: ${e.message}`;
                }
                updateStatus('disconnected', msg);
            }
        }

        async function stopStream() {
            if (detachVideo) { detachVideo(); detachVideo = null; }
            await robot.stopSession();
        }

        // ===================== Audio =====================
        function toggleMute() {
            robot.setAudioMuted(!robot.audioMuted);
            updateMuteButton();
        }

        function toggleMic() {
            robot.setMicMuted(!robot.micMuted);
            updateMicButton();
        }

        function updateMuteButton() {
            const muted = robot.audioMuted;
            const btn = document.getElementById('muteBtn');
            btn.classList.toggle('muted', muted);
            document.getElementById('speakerOffIcon').classList.toggle('hidden', !muted);
            document.getElementById('speakerOnIcon').classList.toggle('hidden', muted);
            document.getElementById('muteText').textContent = muted ? 'Unmute' : 'Mute';
        }

        function updateMicButton() {
            const muted = robot.micMuted;
            const btn = document.getElementById('micBtn');
            btn.classList.toggle('muted', muted);
            document.getElementById('micOffIcon').classList.toggle('hidden', !muted);
            document.getElementById('micOnIcon').classList.toggle('hidden', muted);
            document.getElementById('micText').textContent = muted ? 'Mic Off' : 'Mic On';
        }

        function enableControls(enabled) {
            document.getElementById('btnPlaySound').disabled = !enabled;
            document.getElementById('btnWakeUp').disabled = !enabled;
            document.getElementById('btnGotoSleep').disabled = !enabled;
            document.getElementById('btnTorqueToggle').disabled = !enabled;
            document.getElementById('muteBtn').disabled = !enabled;
            document.getElementById('micBtn').disabled = !enabled || !robot.micSupported;
        }

        // ===================== State Display =====================
        // The "state" event ships raw wire units (flat 4×4 matrix, radians);
        // the UI works in degrees, so we convert at the boundary.
        function updateStateDisplay(state) {
            // Also gate on bodyYawSliderActive: dragging the body slider
            // mutates yawSlider.value (head/body rotate together), and the
            // daemon's mid-IK present_head_pose lags the target. Without
            // this gate, matrixToRpy of the in-flight pose pumps drifted
            // roll/pitch/yaw back into the head sliders, which the next
            // body-input event reads and re-sends — visible as pitch/roll
            // jitter while the body slider is being dragged.
            if (state.head && !headSlidersActive && !bodyYawSliderActive) {
                // state.head is number[16] (flat row-major 4×4); matrixToRpy
                // wants nested 4×4, so unflatten.
                const m = [
                    state.head.slice(0, 4),
                    state.head.slice(4, 8),
                    state.head.slice(8, 12),
                    state.head.slice(12, 16),
                ];
                const rpy = matrixToRpy(m);
                document.getElementById('rollSlider').value = rpy.roll;
                document.getElementById('rollValue').textContent = rpy.roll.toFixed(1) + '°';
                document.getElementById('pitchSlider').value = rpy.pitch;
                document.getElementById('pitchValue').textContent = rpy.pitch.toFixed(1) + '°';
                document.getElementById('yawSlider').value = rpy.yaw;
                document.getElementById('yawValue').textContent = rpy.yaw.toFixed(1) + '°';
            }
            if (state.antennas) {
                const r = radToDeg(state.antennas[0]).toFixed(0);
                const l = radToDeg(state.antennas[1]).toFixed(0);
                document.getElementById('rightAntSlider').value = r;
                document.getElementById('rightAntValue').textContent = r + '°';
                document.getElementById('leftAntSlider').value = l;
                document.getElementById('leftAntValue').textContent = l + '°';
            }
            if (typeof state.body_yaw === 'number' && !bodyYawSliderActive) {
                const y = radToDeg(state.body_yaw).toFixed(0);
                document.getElementById('bodyYawSlider').value = y;
                document.getElementById('bodyYawValue').textContent = y + '°';
                // Sync the delta baseline so the next drag computes from
                // the robot's actual current yaw, not whatever the slider
                // happened to be at on page load.
                lastBodyYawDeg = parseFloat(y);
            }
            if (state.motor_mode) updateTorqueButton(state.motor_mode);
        }

        function updateTorqueButton(mode) {
            const btn = document.getElementById('btnTorqueToggle');
            if (!btn) return;
            // Normalise: anything other than "disabled" is considered "on"
            // for toggle purposes. gravity_compensation is torque-on too.
            const isOn = mode && mode !== 'disabled';
            btn.textContent = isOn ? 'Torque: On (click to disable)' : 'Torque: Off (click to enable)';
            // Stash the current intent so the click handler knows which
            // direction to flip without rereading _robotState.
            btn.dataset.currentMode = mode;
        }

        // ===================== Sliders =====================
        function initSliders() {
            // Head
            const rollSlider = document.getElementById('rollSlider');
            const pitchSlider = document.getElementById('pitchSlider');
            const yawSlider = document.getElementById('yawSlider');
            const rollValue = document.getElementById('rollValue');
            const pitchValue = document.getElementById('pitchValue');
            const yawValue = document.getElementById('yawValue');

            // Body yaw
            const bodyYawSlider = document.getElementById('bodyYawSlider');
            const bodyYawValue = document.getElementById('bodyYawValue');

            // Antennas
            const rightSlider = document.getElementById('rightAntSlider');
            const leftSlider = document.getElementById('leftAntSlider');
            const rightAntValue = document.getElementById('rightAntValue');
            const leftAntValue = document.getElementById('leftAntValue');

            // Single source of truth: read every slider's DOM state and
            // ship it in one atomic setTarget command. Per-slider input
            // handlers update their label, optionally run cross-slider
            // compensation (body-yaw drag → head-yaw counter-rotation),
            // then call this. One round-trip per gesture, no chance for
            // the daemon to see a half-applied target between components.
            function sendCurrentTarget() {
                robot.setTarget({
                    head: rpyToMatrix(
                        parseFloat(rollSlider.value),
                        parseFloat(pitchSlider.value),
                        parseFloat(yawSlider.value),
                    ).flat(),
                    antennas: [
                        degToRad(parseFloat(rightSlider.value)),
                        degToRad(parseFloat(leftSlider.value)),
                    ],
                    body_yaw: degToRad(parseFloat(bodyYawSlider.value)),
                });
            }

            const onStart = () => { headSlidersActive = true; };
            const onEnd = () => { headSlidersActive = false; };

            for (const s of [rollSlider, pitchSlider, yawSlider]) {
                s.addEventListener('mousedown', onStart);
                s.addEventListener('touchstart', onStart);
                s.addEventListener('mouseup', onEnd);
                s.addEventListener('touchend', onEnd);
            }

            rollSlider.addEventListener('input', () => { rollValue.textContent = parseFloat(rollSlider.value).toFixed(1) + '°'; sendCurrentTarget(); });
            pitchSlider.addEventListener('input', () => { pitchValue.textContent = parseFloat(pitchSlider.value).toFixed(1) + '°'; sendCurrentTarget(); });
            yawSlider.addEventListener('input', () => { yawValue.textContent = parseFloat(yawSlider.value).toFixed(1) + '°'; sendCurrentTarget(); });

            // Body yaw — the head pose in setTarget is interpreted in world
            // frame (see look_at_world in the Python SDK), so the IK splits
            // the requested world yaw between body rotation and the stewart
            // platform. Mechanical limit: |head_yaw_world − body_yaw| ≤ 65°.
            //
            // To keep that relative yaw constant as the user drags the body
            // slider, we move the head's commanded world yaw by the same
            // delta — head and body rotate together (tank-style). The
            // per-component values are then shipped atomically by
            // sendCurrentTarget().
            const onBodyStart = () => { bodyYawSliderActive = true; };
            const onBodyEnd = () => { bodyYawSliderActive = false; };
            bodyYawSlider.addEventListener('mousedown', onBodyStart);
            bodyYawSlider.addEventListener('touchstart', onBodyStart);
            bodyYawSlider.addEventListener('mouseup', onBodyEnd);
            bodyYawSlider.addEventListener('touchend', onBodyEnd);

            const yawMin = parseFloat(yawSlider.min);
            const yawMax = parseFloat(yawSlider.max);
            bodyYawSlider.addEventListener('input', () => {
                const newBodyDeg = parseFloat(bodyYawSlider.value);
                const delta = newBodyDeg - lastBodyYawDeg;
                // Add the body-yaw delta to the head-yaw slider, clamped
                // to its range. Once the head slider saturates, the head's
                // world yaw stops keeping up with the body, the relative
                // yaw starts to grow, and beyond ~65° the daemon's safe-IK
                // will modulate body_yaw to stay within mechanical limits.
                const newHeadYaw = Math.max(yawMin, Math.min(yawMax,
                    parseFloat(yawSlider.value) + delta));
                yawSlider.value = newHeadYaw;
                yawValue.textContent = newHeadYaw.toFixed(1) + '°';
                bodyYawValue.textContent = newBodyDeg.toFixed(0) + '°';
                sendCurrentTarget();
                lastBodyYawDeg = newBodyDeg;
            });

            rightSlider.addEventListener('input', () => {
                rightAntValue.textContent = rightSlider.value + '°';
                sendCurrentTarget();
            });
            leftSlider.addEventListener('input', () => {
                leftAntValue.textContent = leftSlider.value + '°';
                sendCurrentTarget();
            });
        }

        // ===================== Sound =====================
        function playSound() {
            const file = document.getElementById('soundInput').value.trim();
            if (file) robot.playSound(file);
        }

        function playSoundPreset(file) {
            document.getElementById('soundInput').value = file;
            robot.playSound(file);
        }

        // ===================== Animations =====================
        //
        // Fire-and-forget: the robot plays the full trajectory (~2 s) and
        // we don't await completion. The buttons are briefly disabled
        // during the motion to prevent the user from spamming the same
        // animation on top of itself, using is_move_running from the
        // state event as the authoritative "busy" signal.
        //
        // Staleness detection: if the lib loaded from CDN predates these
        // methods (typeof check), warn instead of silently failing. Same
        // pattern as the volume controls.
        function playWakeUp() {
            // Click receipt log: present so that "no log at all" definitively
            // means the click event never reached this function (button still
            // disabled, stale HTML in browser cache, or redeploy not live).
            console.log('[animations] playWakeUp clicked; robot.state=', robot.state,
                '; robot.wakeUp typeof=', typeof robot.wakeUp);
            if (typeof robot.wakeUp !== 'function') {
                console.warn('robot.wakeUp is not a function — stale JS lib; purge jsdelivr + hard-refresh.');
                return;
            }
            const ok = robot.wakeUp();
            console.log('[animations] robot.wakeUp() returned', ok);
        }

        function playGotoSleep() {
            console.log('[animations] playGotoSleep clicked; robot.state=', robot.state,
                '; robot.gotoSleep typeof=', typeof robot.gotoSleep);
            if (typeof robot.gotoSleep !== 'function') {
                console.warn('robot.gotoSleep is not a function — stale JS lib; purge jsdelivr + hard-refresh.');
                return;
            }
            const ok = robot.gotoSleep();
            console.log('[animations] robot.gotoSleep() returned', ok);
        }

        // ===================== Torque =====================
        //
        // The "current mode" read from the button's dataset is populated by
        // updateTorqueButton() on every state-event. If a user clicks before
        // the first state tick arrives, currentMode is falsy and we default
        // to enabling — the safe-ish choice that matches what wakeUp() would
        // do. The label then self-corrects on the next state tick.
        function toggleTorque() {
            if (typeof robot.setMotorMode !== 'function') {
                console.warn('robot.setMotorMode is not a function — stale JS lib; purge jsdelivr + hard-refresh.');
                return;
            }
            const btn = document.getElementById('btnTorqueToggle');
            const currentMode = btn.dataset.currentMode;
            const next = (currentMode && currentMode !== 'disabled') ? 'disabled' : 'enabled';
            console.log('[torque] toggle click; currentMode=', currentMode, '→ sending', next);
            robot.setMotorMode(next);
            // Optimistic UI update. If the robot rejects or differs, the
            // next state tick (within ~500 ms) will overwrite.
            updateTorqueButton(next);
        }
    </script>
</body>
</html>