mymuseum-visitapp/lib/Components/AssistantChatSheet.dart
Thomas Fransolet 0aff904ede _toLangCode dédoublonné — la décision n'était écrite que dans une copie sur trois
La fonction était recopiée dans VoiceOrchestrator, AssistantChatSheet et
GeoBeaconTriggerService. La limite « FR/NL/EN/DE seulement, le reste retombe sur
le français » est une décision assumée, mais elle n'était documentée que dans la
première : les deux autres ressemblaient à un oubli qu'on aurait envie de
« corriger » en ajoutant des langues, ce qui aurait produit un support partiel
silencieux — les listes de commandes vocales, elles, ne couvrent que ces quatre
langues.

Une seule copie dans Helpers/voiceLanguage.dart, une seule décision.

flutter analyze lib sans erreur, flutter build apk --debug --flavor dev vert.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-13 16:29:35 +02:00

772 lines
29 KiB
Dart

import 'package:flutter/material.dart';
import 'package:flutter_widget_from_html/flutter_widget_from_html.dart';
import 'package:mymuseum_visitapp/Components/VisitorPrivacyNotice.dart';
import 'package:mymuseum_visitapp/Helpers/assistantSuggestions.dart';
import 'package:mymuseum_visitapp/Helpers/voiceLanguage.dart';
import 'package:mymuseum_visitapp/Helpers/translationHelper.dart';
import 'package:mymuseum_visitapp/Models/AssistantResponse.dart';
import 'package:mymuseum_visitapp/Models/visitContext.dart';
import 'package:mymuseum_visitapp/Services/assistantService.dart';
import 'package:mymuseum_visitapp/Services/Glasses/glasses_orchestrator.dart';
import 'package:mymuseum_visitapp/Services/meta_glasses_service.dart';
import 'package:mymuseum_visitapp/constants.dart';
import 'package:speech_to_text/speech_to_text.dart';
String _stripHtml(String html) => html.replaceAll(RegExp(r'<[^>]*>'), '').trim();
class AssistantChatSheet extends StatefulWidget {
final VisitAppContext visitAppContext;
final String? configurationId;
final void Function(String sectionId, String sectionTitle)? onNavigateToSection;
const AssistantChatSheet({
Key? key,
required this.visitAppContext,
this.configurationId,
this.onNavigateToSection,
}) : super(key: key);
static void show(
BuildContext context, {
required VisitAppContext visitAppContext,
String? configurationId,
void Function(String sectionId, String sectionTitle)? onNavigateToSection,
}) {
showGeneralDialog(
context: context,
barrierDismissible: true,
barrierLabel: '',
barrierColor: Colors.black54,
transitionDuration: const Duration(milliseconds: 280),
pageBuilder: (dialogContext, _, __) => AssistantChatSheet(
visitAppContext: visitAppContext,
configurationId: configurationId,
onNavigateToSection: onNavigateToSection,
),
transitionBuilder: (_, animation, __, child) => SlideTransition(
position: Tween<Offset>(begin: const Offset(0, 1), end: Offset.zero)
.animate(CurvedAnimation(parent: animation, curve: Curves.easeOut)),
child: child,
),
);
}
@override
State<AssistantChatSheet> createState() => _AssistantChatSheetState();
}
class _AssistantChatSheetState extends State<AssistantChatSheet> {
late AssistantService _assistantService;
final TextEditingController _controller = TextEditingController();
final ScrollController _scrollController = ScrollController();
bool _isLoading = false;
final SpeechToText _speech = SpeechToText();
bool _speechAvailable = false;
bool _isListening = false;
@override
void initState() {
super.initState();
// Conversation partagée avec le vocal et le proactif : à l'ouverture, la feuille
// affiche déjà ce qui s'est dit aux lunettes, et se met à jour en direct si le
// guide parle pendant qu'elle est ouverte.
_assistantService = widget.visitAppContext.assistant;
_assistantService.addListener(_onConversationChanged);
_initSpeech();
}
void _onConversationChanged() {
if (!mounted) return;
setState(() {});
_scrollToBottom();
}
Future<void> _initSpeech() async {
final available = await _speech.initialize();
if (mounted) setState(() => _speechAvailable = available);
}
Future<void> _toggleListening() async {
if (_isListening) {
await _speech.stop();
setState(() => _isListening = false);
} else {
final locale = widget.visitAppContext.language?.toLowerCase() ?? 'fr';
setState(() => _isListening = true);
await _speech.listen(
localeId: locale,
onResult: (result) {
setState(() => _controller.text = result.recognizedWords);
if (result.finalResult) {
setState(() => _isListening = false);
}
},
listenOptions: SpeechListenOptions(partialResults: true),
);
}
}
@override
void dispose() {
// Le service survit à la feuille — il porte la conversation, pas l'écran. On se
// désabonne, on ne le dispose pas.
_assistantService.removeListener(_onConversationChanged);
_speech.cancel();
super.dispose();
}
Future<void> _send() async {
final text = _controller.text.trim();
if (text.isEmpty || _isLoading) return;
_controller.clear();
// Le tour du visiteur est ajouté par le service, qui prévient ses écouteurs :
// rien à empiler ici, sinon il s'afficherait deux fois.
setState(() => _isLoading = true);
_scrollToBottom();
try {
final response = await _assistantService.chat(
message: text,
configurationId: widget.configurationId,
);
// Pipe TTS vers les lunettes si connectées
if (MetaGlassesService.instance.isConnected && response.reply.isNotEmpty) {
final lang = widget.visitAppContext.language ?? 'FR';
activeVoiceOrchestrator?.ttsEngine.speak(
response.reply,
languageCode: _toLangCode(lang),
);
}
} on AssistantUnavailableException {
// Quota épuisé : surtout ne pas inviter à réessayer, le visiteur boucterait.
_assistantService.addServiceMessage(
"Le guide se repose pour aujourd'hui. Revenez demain.");
} catch (e) {
debugPrint('AssistantChatSheet error: $e');
_assistantService.addServiceMessage("Une erreur est survenue, réessayez.");
} finally {
setState(() => _isLoading = false);
_scrollToBottom();
}
}
/// Voir `Helpers/voiceLanguage.dart` : limite assumée à FR/NL/EN/DE, pas un oubli.
String _toLangCode(String lang) => toVoiceLangCode(lang);
void _scrollToBottom() {
WidgetsBinding.instance.addPostFrameCallback((_) {
if (_scrollController.hasClients) {
_scrollController.animateTo(
_scrollController.position.maxScrollExtent,
duration: const Duration(milliseconds: 300),
curve: Curves.easeOut,
);
}
});
}
/// Nom du lieu affiché sous le titre — le visiteur sait à qui il parle.
String get _venueName {
final configuration = widget.visitAppContext.configuration;
if (configuration == null) return '';
final title = _stripHtml(
TranslationHelper.get(configuration.title, widget.visitAppContext));
return title.isNotEmpty ? title : (configuration.label ?? '');
}
@override
Widget build(BuildContext context) {
final height = MediaQuery.of(context).size.height * 0.9;
return Align(
alignment: Alignment.bottomCenter,
child: Material(
borderRadius: const BorderRadius.vertical(top: Radius.circular(20)),
clipBehavior: Clip.antiAlias,
child: SizedBox(
height: height,
child: Column(
children: [
// Header
Padding(
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
child: Row(
children: [
Container(
width: 32,
height: 32,
decoration: BoxDecoration(
color: kMainColor1,
shape: BoxShape.circle,
),
child: const Icon(Icons.chat_bubble_outline,
color: Colors.white, size: 17),
),
const SizedBox(width: 10),
Flexible(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: [
Text("Votre guide",
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w600,
height: 1.15,
color: kSecondGrey)),
if (_venueName.isNotEmpty)
Text(_venueName,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: TextStyle(
fontSize: 11.5,
height: 1.2,
color: Colors.grey[500])),
],
),
),
const SizedBox(width: 8),
ValueListenableBuilder<GlassesState>(
valueListenable: MetaGlassesService.instance.state,
builder: (_, glassesState, __) {
final connected = glassesState == GlassesState.connected ||
glassesState == GlassesState.streaming;
// Rien à montrer tant qu'aucune paire n'est entrée en scène :
// l'ancienne garde `glassesEnabled` n'était jamais vraie, donc
// cette pastille n'a jamais été affichée à personne.
if (glassesState == GlassesState.disconnected) {
return const SizedBox.shrink();
}
return Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(
Icons.smart_toy_outlined,
size: 14,
color: connected ? Colors.green : Colors.grey[400],
),
const SizedBox(width: 3),
Text(
connected ? 'Lunettes' : 'Déconnecté',
style: TextStyle(
fontSize: 11,
color: connected ? Colors.green : Colors.grey[400],
),
),
],
);
},
),
const Spacer(),
// §8.3 des CGU : la mention doit être accessible depuis l'assistant
// lui-même, c'est-à-dire là où la collecte a lieu — pas seulement dans
// la politique de confidentialité du lieu.
IconButton(
icon: const Icon(Icons.privacy_tip_outlined, size: 20),
tooltip: VisitorPrivacyNotice.textFor(widget.visitAppContext.language).title,
onPressed: () =>
VisitorPrivacyNotice.show(context, widget.visitAppContext),
),
IconButton(
icon: const Icon(Icons.close),
onPressed: () => Navigator.of(context).pop(),
),
],
),
),
const Divider(height: 1),
// Messages — lus depuis la conversation partagée, donc ce qui a été dit
// aux lunettes est déjà là à l'ouverture.
Expanded(
child: _assistantService.turns.isEmpty
? Center(
child: Padding(
padding: const EdgeInsets.all(24),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Text(
"Bonjour ! Posez-moi vos questions sur cette visite.",
textAlign: TextAlign.center,
style: TextStyle(color: Colors.grey[500], fontSize: 15),
),
const SizedBox(height: 16),
// Suggestions dérivées du contenu réel de la configuration :
// face à un champ vide, peu de visiteurs savent quoi demander.
Wrap(
alignment: WrapAlignment.center,
spacing: 8,
runSpacing: 8,
children: AssistantSuggestions
.build(widget.visitAppContext)
.map((suggestion) => ActionChip(
label: Text(
suggestion,
style: const TextStyle(fontSize: 12.5),
),
backgroundColor: Colors.white,
side: BorderSide(color: Colors.grey[300]!),
onPressed: () {
_controller.text = suggestion;
_send();
},
))
.toList(),
),
],
),
),
)
: ListView.builder(
controller: _scrollController,
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
itemCount: _assistantService.turns.length,
itemBuilder: (_, i) {
final turn = _assistantService.turns[i];
if (turn.response != null) {
return _AssistantMessage(
response: turn.response!,
isVoice: turn.isVoice,
onNavigate: widget.onNavigateToSection,
);
}
return _ChatBubble(
text: turn.text,
isUser: turn.isUser,
isVoice: turn.isVoice,
);
},
),
),
// Le guide rédige — trois points plutôt qu'un spinner : la réponse
// arrive, elle ne « charge » pas.
if (_isLoading)
Align(
alignment: Alignment.centerLeft,
child: Padding(
padding: const EdgeInsets.fromLTRB(16, 4, 16, 4),
child: Semantics(
label: 'Le guide rédige',
child: Container(
padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 12),
decoration: BoxDecoration(
color: Colors.grey[100],
borderRadius: const BorderRadius.only(
topLeft: Radius.circular(16),
topRight: Radius.circular(16),
bottomLeft: Radius.circular(4),
bottomRight: Radius.circular(16),
),
),
child: const _TypingDots(),
),
),
),
),
// Écoute en cours — le micro rouge seul ne dit pas qu'on enregistre.
if (_isListening)
Padding(
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
child: Container(
padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 9),
decoration: BoxDecoration(
color: Colors.red.withValues(alpha: 0.09),
borderRadius: BorderRadius.circular(999),
),
child: Row(
children: [
const Icon(Icons.mic, color: Colors.red, size: 15),
const SizedBox(width: 8),
const Text(
"Je vous écoute…",
style: TextStyle(
color: Colors.red, fontSize: 13, fontWeight: FontWeight.w600),
),
const Spacer(),
const _ListeningWave(),
],
),
),
),
// Input
Padding(
padding: EdgeInsets.only(
left: 12,
right: 12,
bottom: MediaQuery.of(context).viewInsets.bottom + 8,
top: 8),
child: Row(
children: [
Expanded(
child: TextField(
controller: _controller,
textCapitalization: TextCapitalization.sentences,
decoration: InputDecoration(
hintText: "Votre question...",
filled: true,
fillColor: Colors.grey[100],
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(24),
borderSide: BorderSide.none,
),
contentPadding:
const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
),
onSubmitted: (_) => _send(),
),
),
const SizedBox(width: 8),
if (_speechAvailable)
AnimatedContainer(
duration: const Duration(milliseconds: 200),
decoration: BoxDecoration(
color: _isListening ? Colors.red : Colors.grey[200],
shape: BoxShape.circle,
),
child: IconButton(
icon: Icon(
_isListening ? Icons.mic : Icons.mic_none,
color: _isListening ? Colors.white : Colors.grey[600],
size: 20,
),
onPressed: _toggleListening,
),
),
const SizedBox(width: 8),
CircleAvatar(
backgroundColor: kMainColor1,
child: IconButton(
icon: const Icon(Icons.send, color: Colors.white, size: 18),
onPressed: _send,
),
),
],
),
),
],
),
),
),
);
}
}
/// Trois points qui pulsent en décalé, pendant que la réponse se prépare.
class _TypingDots extends StatefulWidget {
const _TypingDots();
@override
State<_TypingDots> createState() => _TypingDotsState();
}
class _TypingDotsState extends State<_TypingDots>
with SingleTickerProviderStateMixin {
late final AnimationController _controller = AnimationController(
vsync: this,
duration: const Duration(milliseconds: 1300),
)..repeat();
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return AnimatedBuilder(
animation: _controller,
builder: (_, __) => Row(
mainAxisSize: MainAxisSize.min,
children: List.generate(3, (i) {
// Chaque point est décalé d'un sixième de cycle sur le précédent.
final phase = (_controller.value - i * 0.14) % 1.0;
final lift = phase < 0.3 ? Curves.easeInOut.transform(phase / 0.3) : 0.0;
return Padding(
padding: EdgeInsets.only(right: i < 2 ? 4 : 0),
child: Transform.translate(
offset: Offset(0, -3 * lift),
child: Container(
width: 6,
height: 6,
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Colors.grey[500]!.withValues(alpha: 0.3 + 0.7 * lift),
),
),
),
);
}),
),
);
}
}
/// Onde sonore de la dictée — cinq barres qui respirent.
class _ListeningWave extends StatefulWidget {
const _ListeningWave();
@override
State<_ListeningWave> createState() => _ListeningWaveState();
}
class _ListeningWaveState extends State<_ListeningWave>
with SingleTickerProviderStateMixin {
static const _heights = [8.0, 14.0, 20.0, 11.0, 16.0];
late final AnimationController _controller = AnimationController(
vsync: this,
duration: const Duration(milliseconds: 1000),
)..repeat();
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return AnimatedBuilder(
animation: _controller,
builder: (_, __) => Row(
mainAxisSize: MainAxisSize.min,
children: List.generate(_heights.length, (i) {
final phase = (_controller.value + i * 0.12) % 1.0;
final scale = 0.5 + 0.5 * (1 - (phase * 2 - 1).abs());
return Padding(
padding: EdgeInsets.only(right: i < _heights.length - 1 ? 2 : 0),
child: Container(
width: 3,
height: _heights[i] * scale,
decoration: BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.circular(2),
),
),
);
}),
),
);
}
}
class _ChatBubble extends StatelessWidget {
final String text;
final bool isUser;
/// Le tour est passé par la voix. Une petite icône le signale — sans elle, le
/// visiteur qui ouvre le chat ne comprend pas d'où sortent des messages qu'il
/// n'a jamais tapés.
final bool isVoice;
const _ChatBubble({required this.text, required this.isUser, this.isVoice = false});
@override
Widget build(BuildContext context) {
return Align(
alignment: isUser ? Alignment.centerRight : Alignment.centerLeft,
child: Column(
crossAxisAlignment: isUser ? CrossAxisAlignment.end : CrossAxisAlignment.start,
children: [
if (isVoice)
Padding(
padding: const EdgeInsets.only(top: 4, left: 6, right: 6),
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Icon(Icons.graphic_eq, size: 11, color: Colors.grey[500]),
const SizedBox(width: 3),
Text('À voix haute',
style: TextStyle(fontSize: 10.5, color: Colors.grey[500])),
],
),
),
_bubble(context),
],
),
);
}
Widget _bubble(BuildContext context) {
return Container(
margin: const EdgeInsets.symmetric(vertical: 4),
padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 10),
constraints: BoxConstraints(maxWidth: MediaQuery.of(context).size.width * 0.78),
decoration: BoxDecoration(
color: isUser ? kMainColor1 : Colors.grey[100],
borderRadius: BorderRadius.only(
topLeft: const Radius.circular(16),
topRight: const Radius.circular(16),
bottomLeft: isUser ? const Radius.circular(16) : const Radius.circular(4),
bottomRight: isUser ? const Radius.circular(4) : const Radius.circular(16),
),
),
child: isUser
? Text(
text,
style: const TextStyle(color: Colors.white, fontSize: 14),
)
: HtmlWidget(
text,
textStyle: TextStyle(color: kSecondGrey, fontSize: 14),
),
);
}
}
class _AssistantMessage extends StatelessWidget {
final AssistantResponse response;
final bool isVoice;
final void Function(String sectionId, String sectionTitle)? onNavigate;
const _AssistantMessage({
required this.response,
this.isVoice = false,
this.onNavigate,
});
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.symmetric(vertical: 4),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
if (response.reply.isNotEmpty)
_ChatBubble(text: response.reply, isUser: false, isVoice: isVoice),
if (response.cards != null && response.cards!.isNotEmpty)
Padding(
padding: const EdgeInsets.only(top: 6, left: 4, right: 24),
child: Column(
children: response.cards!.map((card) => _AiCardWidget(card: card)).toList(),
),
),
if (response.navigation != null && onNavigate != null)
GestureDetector(
onTap: () {
Navigator.of(context).pop();
onNavigate!(
response.navigation!.sectionId,
_stripHtml(response.navigation!.sectionTitle),
);
},
child: Container(
margin: const EdgeInsets.only(top: 8, left: 4, right: 24),
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
decoration: BoxDecoration(
color: kMainColor1.withValues(alpha: 0.08),
borderRadius: BorderRadius.circular(12),
border: Border.all(color: kMainColor1.withValues(alpha: 0.35)),
),
child: Row(
children: [
ClipRRect(
borderRadius: BorderRadius.circular(8),
child: response.navigation!.imageUrl != null
? Image.network(
response.navigation!.imageUrl!,
width: 48,
height: 48,
fit: BoxFit.cover,
errorBuilder: (_, __, ___) => Container(
width: 48,
height: 48,
decoration: BoxDecoration(
color: kMainColor1,
borderRadius: BorderRadius.circular(8),
),
child: const Icon(Icons.place_outlined, color: Colors.white, size: 22),
),
)
: Container(
width: 48,
height: 48,
decoration: BoxDecoration(
color: kMainColor1,
borderRadius: BorderRadius.circular(8),
),
child: const Icon(Icons.place_outlined, color: Colors.white, size: 22),
),
),
const SizedBox(width: 10),
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
_stripHtml(response.navigation!.sectionTitle),
style: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 13,
color: kSecondGrey,
),
),
Text(
"Voir cette section",
style: TextStyle(fontSize: 11, color: Colors.grey[500]),
),
],
),
),
Icon(Icons.chevron_right, color: kMainColor1, size: 20),
],
),
),
),
],
),
);
}
}
class _AiCardWidget extends StatelessWidget {
final AiCard card;
const _AiCardWidget({required this.card});
@override
Widget build(BuildContext context) {
return Container(
margin: const EdgeInsets.only(bottom: 6),
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(10),
border: Border.all(color: Colors.grey[200]!),
boxShadow: [
BoxShadow(
color: Colors.black.withValues(alpha: 0.05),
blurRadius: 3,
offset: const Offset(0, 1)),
],
),
child: Row(
children: [
if (card.icon != null) ...[
Text(card.icon!, style: const TextStyle(fontSize: 18)),
const SizedBox(width: 8),
],
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(card.title,
style: TextStyle(
fontWeight: FontWeight.w600, fontSize: 13, color: kSecondGrey)),
if (card.subtitle.isNotEmpty)
Text(card.subtitle,
style: const TextStyle(fontSize: 12, color: Colors.grey)),
],
),
),
],
),
);
}
}