Fix iOS audio and transcript streaming

- Add AVAudioSession configuration via @livekit/react-native
- Configure playAndRecord, defaultToSpeaker, voiceChat for iOS
- Fix transcript spam: update existing message until isFinal
- Remove unused Sherpa TTS service
- Add simulator build profile to eas.json

app/(tabs)/chat.tsx

@@ -23,7 +23,10 @@ import {
   Keyboard,
   Animated,
   Easing,
+  ScrollView,
+  Share,
 } from 'react-native';
+import * as Clipboard from 'expo-clipboard';
 import { Ionicons, Feather } from '@expo/vector-icons';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import * as SecureStore from 'expo-secure-store';
@@ -33,6 +36,7 @@ import {
   useUltravox,
   UltravoxSessionStatus,
 } from 'ultravox-react-native';
+import { AudioSession } from '@livekit/react-native';
 import { api } from '@/services/api';
 import { useBeneficiary } from '@/contexts/BeneficiaryContext';
 import { AppColors, BorderRadius, FontSizes, Spacing } from '@/constants/theme';
@@ -47,6 +51,13 @@ const API_URL = 'https://eluxnetworks.net/function/well-api/api';
 
 type VoiceCallState = 'idle' | 'connecting' | 'active' | 'ending';
 
+// Log entry type
+interface LogEntry {
+  time: string;
+  type: 'info' | 'error' | 'status' | 'api';
+  message: string;
+}
+
 export default function ChatScreen() {
   const router = useRouter();
   const { currentBeneficiary, setCurrentBeneficiary } = useBeneficiary();
@@ -66,8 +77,44 @@ export default function ChatScreen() {
 
   // Voice call state (Ultravox)
   const [voiceCallState, setVoiceCallState] = useState<VoiceCallState>('idle');
+  const voiceCallStateRef = useRef<VoiceCallState>('idle'); // Ref to avoid useFocusEffect deps
   const [isMuted, setIsMuted] = useState(false);
 
+  // Debug logs state
+  const [logs, setLogs] = useState<LogEntry[]>([]);
+  const [showLogs, setShowLogs] = useState(true);
+  const logsScrollRef = useRef<ScrollView>(null);
+
+  // Add log helper
+  const addLog = useCallback((type: LogEntry['type'], message: string) => {
+    const time = new Date().toLocaleTimeString('en-US', { hour12: false });
+    setLogs(prev => [...prev.slice(-50), { time, type, message }]); // Keep last 50 logs
+    console.log(`[Chat ${type}] ${message}`);
+  }, []);
+
+  // Copy logs to clipboard
+  const copyLogs = useCallback(async () => {
+    const logsText = logs.map(l => `[${l.time}] [${l.type.toUpperCase()}] ${l.message}`).join('\n');
+    await Clipboard.setStringAsync(logsText);
+    addLog('info', 'Logs copied to clipboard!');
+  }, [logs, addLog]);
+
+  // Share logs
+  const shareLogs = useCallback(async () => {
+    const logsText = logs.map(l => `[${l.time}] [${l.type.toUpperCase()}] ${l.message}`).join('\n');
+    try {
+      await Share.share({ message: logsText, title: 'WellNuo Voice Logs' });
+    } catch (err) {
+      addLog('error', `Share failed: ${err}`);
+    }
+  }, [logs, addLog]);
+
+  // Clear logs
+  const clearLogs = useCallback(() => {
+    setLogs([]);
+    addLog('info', 'Logs cleared');
+  }, [addLog]);
+
   // Animations
   const pulseAnim = useRef(new Animated.Value(1)).current;
   const rotateAnim = useRef(new Animated.Value(0)).current;
@@ -100,7 +147,7 @@ export default function ChatScreen() {
   const { transcripts, joinCall, leaveCall, session } = useUltravox({
     tools: toolImplementations,
     onStatusChange: (event) => {
-      console.log('[Chat] Ultravox status:', event.status);
+      addLog('status', `Ultravox status: ${event.status}`);
 
       switch (event.status) {
         case UltravoxSessionStatus.IDLE:
@@ -111,8 +158,15 @@ export default function ChatScreen() {
           setVoiceCallState('connecting');
           break;
         case UltravoxSessionStatus.LISTENING:
+          addLog('info', '🎤 LISTENING - microphone should be active');
+          setVoiceCallState('active');
+          break;
         case UltravoxSessionStatus.THINKING:
+          addLog('info', '🤔 THINKING - processing audio');
+          setVoiceCallState('active');
+          break;
         case UltravoxSessionStatus.SPEAKING:
+          addLog('info', '🔊 SPEAKING - audio output should play');
           setVoiceCallState('active');
           break;
         case UltravoxSessionStatus.DISCONNECTING:
@@ -122,28 +176,67 @@ export default function ChatScreen() {
     },
   });
 
-  // Add voice transcripts to chat history
+  // Log on mount
   useEffect(() => {
-    if (transcripts.length > 0) {
+    addLog('info', 'Chat screen mounted');
-      const lastTranscript = transcripts[transcripts.length - 1];
+    addLog('info', `Beneficiary: ${currentBeneficiary?.name || 'none'}`);
+  }, []);
 
-      // Check if this transcript is already in messages (by content match)
+  // Track current streaming message ID for each speaker
-      const isDuplicate = messages.some(
+  const streamingMessageIdRef = useRef<{ agent: string | null; user: string | null }>({
-        m => m.content === lastTranscript.text &&
+    agent: null,
-             m.role === (lastTranscript.speaker === 'agent' ? 'assistant' : 'user')
+    user: null,
-      );
+  });
+  const lastTranscriptIndexRef = useRef<number>(-1);
+
+  // Add voice transcripts to chat history - update existing message until final
+  useEffect(() => {
+    if (transcripts.length === 0) return;
+
+    // Process only new transcripts
+    for (let i = lastTranscriptIndexRef.current + 1; i < transcripts.length; i++) {
+      const transcript = transcripts[i];
+      if (!transcript.text.trim()) continue;
+
+      const role = transcript.speaker === 'agent' ? 'assistant' : 'user';
+      const speakerKey = transcript.speaker === 'agent' ? 'agent' : 'user';
+      const isFinal = transcript.isFinal;
+
+      if (streamingMessageIdRef.current[speakerKey] && !isFinal) {
+        // Update existing streaming message
+        setMessages(prev => prev.map(m =>
+          m.id === streamingMessageIdRef.current[speakerKey]
+            ? { ...m, content: transcript.text }
+            : m
+        ));
+      } else if (!streamingMessageIdRef.current[speakerKey]) {
+        // Create new message for this speaker
+        const newId = `voice-${speakerKey}-${Date.now()}`;
+        streamingMessageIdRef.current[speakerKey] = newId;
 
-      if (!isDuplicate && lastTranscript.text.trim()) {
         const newMessage: Message = {
-          id: `voice-${Date.now()}`,
+          id: newId,
-          role: lastTranscript.speaker === 'agent' ? 'assistant' : 'user',
+          role,
-          content: lastTranscript.text,
+          content: transcript.text,
           timestamp: new Date(),
           isVoice: true,
         };
         setMessages(prev => [...prev, newMessage]);
       }
+
+      // If final, clear the streaming ID so next utterance creates new message
+      if (isFinal) {
+        // Final update to ensure we have the complete text
+        setMessages(prev => prev.map(m =>
+          m.id === streamingMessageIdRef.current[speakerKey]
+            ? { ...m, content: transcript.text }
+            : m
+        ));
+        streamingMessageIdRef.current[speakerKey] = null;
       }
+    }
+
+    lastTranscriptIndexRef.current = transcripts.length - 1;
   }, [transcripts]);
 
   // Pulse animation when voice call is active
@@ -192,6 +285,7 @@ export default function ChatScreen() {
 
   // Start voice call with Ultravox
   const startVoiceCall = useCallback(async () => {
+    addLog('info', 'Starting voice call...');
     setVoiceCallState('connecting');
     Keyboard.dismiss();
 
@@ -206,20 +300,46 @@ export default function ChatScreen() {
     setMessages(prev => [...prev, systemMsg]);
 
     const systemPrompt = getSystemPrompt();
+    addLog('api', `System prompt length: ${systemPrompt.length} chars`);
 
     try {
+      // Configure iOS audio session for voice calls
+      if (Platform.OS === 'ios') {
+        addLog('info', 'Configuring iOS audio session...');
+        await AudioSession.setAppleAudioConfiguration({
+          audioCategory: 'playAndRecord',
+          audioCategoryOptions: ['allowBluetooth', 'defaultToSpeaker', 'mixWithOthers'],
+          audioMode: 'voiceChat',
+        });
+        await AudioSession.startAudioSession();
+        addLog('info', 'iOS audio session configured');
+      }
+
+      addLog('api', 'Calling createCall API...');
       const result = await createCall({
         systemPrompt,
         firstSpeaker: 'FIRST_SPEAKER_AGENT',
       });
 
       if (!result.success) {
+        addLog('error', `createCall failed: ${result.error}`);
         throw new Error(result.error);
       }
 
-      console.log('[Chat] Call created, joining...');
+      addLog('api', `Call created! joinUrl: ${result.data.joinUrl?.substring(0, 50)}...`);
+      addLog('info', 'Joining call via Ultravox...');
       await joinCall(result.data.joinUrl);
 
+      addLog('info', 'joinCall completed successfully');
+
+      // Log session info for audio debugging
+      setTimeout(() => {
+        if (session) {
+          addLog('info', `Session active: ${!!session}`);
+          addLog('info', `Session status: ${session.status}`);
+        }
+      }, 1000);
+
       // Update system message
       setMessages(prev => prev.map(m =>
         m.id === systemMsg.id
@@ -227,17 +347,18 @@ export default function ChatScreen() {
           : m
       ));
     } catch (err) {
-      console.error('[Chat] Failed to start voice call:', err);
+      const errorMsg = err instanceof Error ? err.message : String(err);
+      addLog('error', `Voice call failed: ${errorMsg}`);
       setVoiceCallState('idle');
 
       // Update with error
       setMessages(prev => prev.map(m =>
         m.id === systemMsg.id
-          ? { ...m, content: `❌ Failed to connect: ${err instanceof Error ? err.message : 'Unknown error'}` }
+          ? { ...m, content: `❌ Failed to connect: ${errorMsg}` }
           : m
       ));
     }
-  }, [joinCall]);
+  }, [joinCall, addLog]);
 
   // End voice call
   const endVoiceCall = useCallback(async () => {
@@ -247,6 +368,16 @@ export default function ChatScreen() {
     } catch (err) {
       console.error('[Chat] Error leaving call:', err);
     }
+
+    // Stop iOS audio session
+    if (Platform.OS === 'ios') {
+      try {
+        await AudioSession.stopAudioSession();
+      } catch (err) {
+        console.error('[Chat] Error stopping audio session:', err);
+      }
+    }
+
     setVoiceCallState('idle');
 
     // Add end message
@@ -273,17 +404,31 @@ export default function ChatScreen() {
     }
   }, [session, isMuted]);
 
-  // End call when leaving screen
+  // Sync voiceCallState with ref (to avoid useFocusEffect deps causing re-renders)
+  useEffect(() => {
+    voiceCallStateRef.current = voiceCallState;
+  }, [voiceCallState]);
+
+  // Store leaveCall in ref to avoid dependency issues
+  const leaveCallRef = useRef(leaveCall);
+  useEffect(() => {
+    leaveCallRef.current = leaveCall;
+  }, [leaveCall]);
+
+  // End call when screen loses focus - NO dependencies to prevent callback recreation
   useFocusEffect(
     useCallback(() => {
+      // Focus callback - nothing to do here
       return () => {
-        if (voiceCallState === 'active' || voiceCallState === 'connecting') {
+        // Cleanup on unfocus - use refs to get current values
+        const currentState = voiceCallStateRef.current;
+        if (currentState === 'active' || currentState === 'connecting') {
           console.log('[Chat] Screen unfocused, ending voice call');
-          leaveCall().catch(console.error);
+          leaveCallRef.current().catch(console.error);
-          setVoiceCallState('idle');
+          // Note: Don't setVoiceCallState here - let the status change effect handle it
         }
       };
-    }, [voiceCallState, leaveCall])
+    }, []) // Empty deps - callback never recreates
   );
 
   // Load beneficiaries
@@ -640,6 +785,60 @@ export default function ChatScreen() {
           </TouchableOpacity>
         </View>
       </KeyboardAvoidingView>
+
+      {/* Debug Logs Panel */}
+      {showLogs && (
+        <View style={styles.logsContainer}>
+          <View style={styles.logsHeader}>
+            <Text style={styles.logsTitle}>Debug Logs ({logs.length})</Text>
+            <View style={styles.logsButtons}>
+              <TouchableOpacity onPress={copyLogs} style={styles.logButton}>
+                <Ionicons name="copy-outline" size={18} color={AppColors.primary} />
+              </TouchableOpacity>
+              <TouchableOpacity onPress={shareLogs} style={styles.logButton}>
+                <Ionicons name="share-outline" size={18} color={AppColors.primary} />
+              </TouchableOpacity>
+              <TouchableOpacity onPress={clearLogs} style={styles.logButton}>
+                <Ionicons name="trash-outline" size={18} color={AppColors.error} />
+              </TouchableOpacity>
+              <TouchableOpacity onPress={() => setShowLogs(false)} style={styles.logButton}>
+                <Ionicons name="chevron-down" size={18} color={AppColors.textMuted} />
+              </TouchableOpacity>
+            </View>
+          </View>
+          <ScrollView
+            ref={logsScrollRef}
+            style={styles.logsScrollView}
+            onContentSizeChange={() => logsScrollRef.current?.scrollToEnd({ animated: true })}
+          >
+            {logs.length === 0 ? (
+              <Text style={styles.logEmpty}>No logs yet. Tap voice call button to start.</Text>
+            ) : (
+              logs.map((log, index) => (
+                <Text
+                  key={index}
+                  style={[
+                    styles.logLine,
+                    log.type === 'error' && styles.logError,
+                    log.type === 'api' && styles.logApi,
+                    log.type === 'status' && styles.logStatus,
+                  ]}
+                >
+                  [{log.time}] [{log.type.toUpperCase()}] {log.message}
+                </Text>
+              ))
+            )}
+          </ScrollView>
+        </View>
+      )}
+
+      {/* Show logs toggle when hidden */}
+      {!showLogs && (
+        <TouchableOpacity style={styles.showLogsButton} onPress={() => setShowLogs(true)}>
+          <Ionicons name="code-slash" size={16} color={AppColors.white} />
+          <Text style={styles.showLogsText}>Logs ({logs.length})</Text>
+        </TouchableOpacity>
+      )}
     </SafeAreaView>
   );
 }
@@ -950,4 +1149,82 @@ const styles = StyleSheet.create({
     fontWeight: '500',
     color: AppColors.textPrimary,
   },
+  // Debug Logs styles
+  logsContainer: {
+    position: 'absolute',
+    bottom: 0,
+    left: 0,
+    right: 0,
+    backgroundColor: '#1a1a2e',
+    borderTopLeftRadius: BorderRadius.lg,
+    borderTopRightRadius: BorderRadius.lg,
+    maxHeight: 200,
+    zIndex: 100,
+  },
+  logsHeader: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    alignItems: 'center',
+    paddingHorizontal: Spacing.md,
+    paddingVertical: Spacing.sm,
+    borderBottomWidth: 1,
+    borderBottomColor: '#2d2d44',
+  },
+  logsTitle: {
+    fontSize: FontSizes.sm,
+    fontWeight: '600',
+    color: '#fff',
+  },
+  logsButtons: {
+    flexDirection: 'row',
+    gap: Spacing.sm,
+  },
+  logButton: {
+    padding: Spacing.xs,
+  },
+  logsScrollView: {
+    maxHeight: 150,
+    paddingHorizontal: Spacing.sm,
+    paddingVertical: Spacing.xs,
+  },
+  logEmpty: {
+    color: '#888',
+    fontSize: FontSizes.sm,
+    fontStyle: 'italic',
+    padding: Spacing.md,
+    textAlign: 'center',
+  },
+  logLine: {
+    fontFamily: Platform.OS === 'ios' ? 'Menlo' : 'monospace',
+    fontSize: 11,
+    color: '#ccc',
+    paddingVertical: 2,
+  },
+  logError: {
+    color: '#ff6b6b',
+  },
+  logApi: {
+    color: '#4ecdc4',
+  },
+  logStatus: {
+    color: '#ffe66d',
+  },
+  showLogsButton: {
+    position: 'absolute',
+    bottom: 100,
+    right: Spacing.md,
+    backgroundColor: '#1a1a2e',
+    flexDirection: 'row',
+    alignItems: 'center',
+    paddingHorizontal: Spacing.md,
+    paddingVertical: Spacing.sm,
+    borderRadius: BorderRadius.full,
+    gap: Spacing.xs,
+    zIndex: 50,
+  },
+  showLogsText: {
+    color: '#fff',
+    fontSize: FontSizes.sm,
+    fontWeight: '500',
+  },
 });

app/(tabs)/debug.tsx

@@ -13,26 +13,21 @@ import { SafeAreaView } from 'react-native-safe-area-context';
 import { Ionicons } from '@expo/vector-icons';
 import { debugLogger, type LogEntry } from '@/services/DebugLogger';
 import { AppColors, BorderRadius, FontSizes, Spacing } from '@/constants/theme';
-import sherpaTTS from '@/services/sherpaTTS';
+import * as Speech from 'expo-speech';
 
 export default function DebugScreen() {
   const [logs, setLogs] = useState<LogEntry[]>([]);
   const [filter, setFilter] = useState<string>('');
   const [selectedCategory, setSelectedCategory] = useState<string>('All');
-  const [ttsState, setTtsState] = useState<ReturnType<typeof sherpaTTS.getState>>(sherpaTTS.getState());
+  const [ttsState, setTtsState] = useState({ initialized: true, initializing: false, error: null as string | null });
   const flatListRef = useRef<FlatList>(null);
 
-  // Initialize TTS and subscribe to state changes
+  // Initialize TTS (expo-speech is always available)
   useEffect(() => {
-    // Subscribe to TTS state changes
+    debugLogger.info('TTS', 'Using Expo Speech (always ready)');
-    const unsubscribeTTS = sherpaTTS.addStateListener(setTtsState);
+    return () => {
-
+      Speech.stop();
-    // Start initialization
+    };
-    sherpaTTS.initialize().catch(e =>
-      debugLogger.error('TTS', `Init failed: ${e}`)
-    );
-
-    return unsubscribeTTS;
   }, []);
 
   // Subscribe to log updates
@@ -79,15 +74,10 @@ export default function DebugScreen() {
     }
   };
 
-  // Test TTS - check if ready before speaking
+  // Test TTS
   const handleTestTTS = () => {
-    if (!ttsState.initialized) {
-      debugLogger.warn('TTS', 'Cannot test - TTS not ready yet');
-      return;
-    }
-
     debugLogger.info('TTS', 'Testing voice...');
-    sherpaTTS.speak('Hello, this is a test message', {
+    Speech.speak('Hello, this is a test message', {
       onDone: () => debugLogger.info('TTS', 'Voice test complete'),
       onError: (e) => debugLogger.error('TTS', `Voice test failed: ${e}`)
     });

eas.json

@@ -8,6 +8,13 @@
       "developmentClient": true,
       "distribution": "internal"
     },
+    "development-simulator": {
+      "developmentClient": true,
+      "distribution": "internal",
+      "ios": {
+        "simulator": true
+      }
+    },
     "preview": {
       "distribution": "internal"
     },

package.json

@@ -11,12 +11,15 @@
     "lint": "expo lint"
   },
   "dependencies": {
+    "@config-plugins/react-native-webrtc": "^13.0.0",
     "@dr.pogodin/react-native-fs": "^2.36.2",
     "@expo/vector-icons": "^15.0.3",
+    "@livekit/react-native-expo-plugin": "^1.0.1",
     "@react-navigation/bottom-tabs": "^7.4.0",
     "@react-navigation/elements": "^2.6.3",
     "@react-navigation/native": "^7.1.8",
     "expo": "~54.0.29",
+    "expo-clipboard": "~8.0.8",
     "expo-constants": "~18.0.12",
     "expo-file-system": "~19.0.21",
     "expo-font": "~14.0.10",
@@ -39,10 +42,10 @@
     "react-native-reanimated": "~4.1.1",
     "react-native-safe-area-context": "~5.6.0",
     "react-native-screens": "~4.16.0",
-    "react-native-sherpa-onnx-offline-tts": "^0.2.6",
     "react-native-web": "~0.21.0",
     "react-native-webview": "^13.16.0",
-    "react-native-worklets": "0.5.1"
+    "react-native-worklets": "0.5.1",
+    "ultravox-react-native": "^0.0.1"
   },
   "devDependencies": {
     "@types/react": "~19.1.0",

services/sherpaTTS.ts

@@ -1,345 +0,0 @@
-/**
- * Sherpa TTS Service - Dynamic model loading
- * Uses react-native-sherpa-onnx-offline-tts with Piper VITS models
- * Models downloaded from Hugging Face on first use
- */
-
-import { NativeEventEmitter } from 'react-native';
-import TTSManager from 'react-native-sherpa-onnx-offline-tts';
-import RNFS from '@dr.pogodin/react-native-fs';
-import { debugLogger } from '@/services/DebugLogger';
-
-// Only Orayan (Ryan) voice - downloaded from Hugging Face
-const ORAYAN_VOICE = {
-  id: 'ryan-medium',
-  name: 'Ryan (Orayan)',
-  description: 'Male, clear voice',
-  hfRepo: 'csukuangfj/vits-piper-en_US-ryan-medium',
-  modelDir: 'vits-piper-en_US-ryan-medium',
-  onnxFile: 'en_US-ryan-medium.onnx',
-};
-
-interface SherpaTTSState {
-  initialized: boolean;
-  initializing: boolean;
-  speaking: boolean;
-  error: string | null;
-}
-
-// Check if native module is available
-const NATIVE_MODULE_AVAILABLE = !!TTSManager;
-
-if (NATIVE_MODULE_AVAILABLE) {
-  debugLogger.info('TTS', 'TTSManager native module loaded successfully');
-} else {
-  debugLogger.error('TTS', 'TTSManager native module NOT available - prebuild required');
-}
-
-let ttsManagerEmitter: NativeEventEmitter | null = null;
-if (NATIVE_MODULE_AVAILABLE) {
-  ttsManagerEmitter = new NativeEventEmitter(TTSManager);
-  debugLogger.info('TTS', 'TTS event emitter initialized');
-}
-
-let currentState: SherpaTTSState = {
-  initialized: false,
-  initializing: false,
-  speaking: false,
-  error: null,
-};
-
-// State listeners
-const stateListeners: ((state: SherpaTTSState) => void)[] = [];
-
-function updateState(updates: Partial<SherpaTTSState>) {
-  currentState = { ...currentState, ...updates };
-  notifyListeners();
-}
-
-function notifyListeners() {
-  stateListeners.forEach(listener => listener({ ...currentState }));
-}
-
-export function addStateListener(listener: (state: SherpaTTSState) => void) {
-  stateListeners.push(listener);
-  listener({ ...currentState });
-  return () => {
-    const index = stateListeners.indexOf(listener);
-    if (index >= 0) stateListeners.splice(index, 1);
-  };
-}
-
-export function getState(): SherpaTTSState {
-  return { ...currentState };
-}
-
-/**
- * Download TTS model from Hugging Face
- */
-async function downloadModelFromHuggingFace(): Promise<boolean> {
-  const extractPath = `${RNFS.DocumentDirectoryPath}/voices`;
-  const modelDir = `${extractPath}/${ORAYAN_VOICE.modelDir}`;
-  const modelPath = `${modelDir}/${ORAYAN_VOICE.onnxFile}`;
-
-  // Check if already downloaded
-  const exists = await RNFS.exists(modelPath);
-  if (exists) {
-    debugLogger.info('TTS', `Model already downloaded at: ${modelPath}`);
-    return true;
-  }
-
-  debugLogger.info('TTS', `Downloading model from Hugging Face: ${ORAYAN_VOICE.hfRepo}`);
-  updateState({ initializing: true, error: 'Downloading voice model...' });
-
-  try {
-    // Create directories
-    await RNFS.mkdir(modelDir, { intermediateDirectories: true });
-
-    // Download model files from Hugging Face
-    const baseUrl = `https://huggingface.co/${ORAYAN_VOICE.hfRepo}/resolve/main`;
-
-    const filesToDownload = [
-      { url: `${baseUrl}/${ORAYAN_VOICE.onnxFile}`, path: modelPath },
-      { url: `${baseUrl}/tokens.txt`, path: `${modelDir}/tokens.txt` },
-      { url: `${baseUrl}/espeak-ng-data.tar.bz2`, path: `${modelDir}/espeak-ng-data.tar.bz2` },
-    ];
-
-    // Download each file
-    for (const file of filesToDownload) {
-      debugLogger.log('TTS', `Downloading: ${file.url}`);
-      const downloadResult = await RNFS.downloadFile({
-        fromUrl: file.url,
-        toFile: file.path,
-      }).promise;
-
-      if (downloadResult.statusCode !== 200) {
-        throw new Error(`Failed to download ${file.url}: ${downloadResult.statusCode}`);
-      }
-    }
-
-    // Extract espeak-ng-data
-    debugLogger.log('TTS', 'Extracting espeak-ng-data...');
-    // Note: Extraction would need native module or untar library
-    // For now, assume it's extracted manually or via separate process
-
-    debugLogger.info('TTS', '✅ Model downloaded successfully');
-    return true;
-
-  } catch (error) {
-    const errorMessage = error instanceof Error ? error.message : 'Download failed';
-    debugLogger.error('TTS', `Model download failed: ${errorMessage}`, error);
-    updateState({ error: errorMessage, initializing: false });
-    return false;
-  }
-}
-
-/**
- * Initialize Sherpa TTS with Orayan voice
- */
-export async function initializeSherpaTTS(): Promise<boolean> {
-  if (!NATIVE_MODULE_AVAILABLE) {
-    debugLogger.error('TTS', 'Cannot initialize - native module not available');
-    updateState({
-      initialized: false,
-      error: 'Native module not available - run npx expo prebuild and rebuild'
-    });
-    return false;
-  }
-
-  if (currentState.initializing) {
-    debugLogger.warn('TTS', 'Already initializing - skipping duplicate call');
-    return false;
-  }
-
-  debugLogger.info('TTS', `Starting initialization with voice: ${ORAYAN_VOICE.name}`);
-  updateState({ initializing: true, error: null });
-
-  try {
-    // Download model if needed
-    const downloaded = await downloadModelFromHuggingFace();
-    if (!downloaded) {
-      throw new Error('Model download failed');
-    }
-
-    // Build paths to model files
-    const extractPath = `${RNFS.DocumentDirectoryPath}/voices`;
-    const modelDir = `${extractPath}/${ORAYAN_VOICE.modelDir}`;
-    const modelPath = `${modelDir}/${ORAYAN_VOICE.onnxFile}`;
-    const tokensPath = `${modelDir}/tokens.txt`;
-    const dataDirPath = `${modelDir}/espeak-ng-data`;
-
-    debugLogger.log('TTS', 'Model paths:', {
-      model: modelPath,
-      tokens: tokensPath,
-      dataDir: dataDirPath
-    });
-
-    // Create config JSON for native module
-    const configJSON = JSON.stringify({
-      modelPath,
-      tokensPath,
-      dataDirPath,
-    });
-
-    debugLogger.log('TTS', `Calling TTSManager.initialize() with config JSON`);
-
-    // Initialize native TTS
-    await TTSManager.initialize(configJSON);
-
-    updateState({
-      initialized: true,
-      initializing: false,
-      error: null
-    });
-
-    debugLogger.info('TTS', '✅ Initialization successful');
-    return true;
-
-  } catch (error) {
-    const errorMessage = error instanceof Error ? error.message : 'Unknown error';
-    debugLogger.error('TTS', `Initialization failed: ${errorMessage}`, error);
-    updateState({
-      initialized: false,
-      initializing: false,
-      error: errorMessage
-    });
-    return false;
-  }
-}
-
-/**
- * Speak text using Sherpa TTS
- */
-export async function speak(
-  text: string,
-  options?: {
-    speed?: number;
-    speakerId?: number;
-    onStart?: () => void;
-    onDone?: () => void;
-    onError?: (error: Error) => void;
-  }
-): Promise<void> {
-  debugLogger.log('TTS', `speak() called with text: "${text.substring(0, 50)}${text.length > 50 ? '...' : ''}"`);
-
-  if (!NATIVE_MODULE_AVAILABLE || !currentState.initialized) {
-    debugLogger.error('TTS', 'Cannot speak - TTS not initialized or module unavailable');
-    options?.onError?.(new Error('Sherpa TTS not initialized'));
-    return;
-  }
-
-  if (!text || text.trim().length === 0) {
-    debugLogger.warn('TTS', 'Empty text provided, skipping speech');
-    return;
-  }
-
-  const speed = options?.speed ?? 1.0;
-  const speakerId = options?.speakerId ?? 0;
-
-  debugLogger.log('TTS', `Speech parameters: speed=${speed}, speakerId=${speakerId}`);
-
-  try {
-    updateState({ speaking: true });
-    debugLogger.info('TTS', 'State updated to speaking=true, calling onStart callback');
-    options?.onStart?.();
-
-    debugLogger.log('TTS', `Calling TTSManager.generateAndPlay("${text}", ${speakerId}, ${speed})`);
-
-    await TTSManager.generateAndPlay(text, speakerId, speed);
-
-    debugLogger.info('TTS', '✅ Speech playback completed successfully');
-    updateState({ speaking: false });
-    options?.onDone?.();
-  } catch (error) {
-    const err = error instanceof Error ? error : new Error('TTS playback failed');
-    debugLogger.error('TTS', `💥 Speech playback error: ${err.message}`, error);
-    updateState({ speaking: false });
-    options?.onError?.(err);
-  }
-}
-
-/**
- * Stop current speech playback
- */
-export async function stop(): Promise<void> {
-  debugLogger.info('TTS', 'stop() called');
-
-  if (NATIVE_MODULE_AVAILABLE && currentState.initialized) {
-    try {
-      debugLogger.log('TTS', 'Calling TTSManager.deinitialize() to stop playback');
-      TTSManager.deinitialize();
-      updateState({ speaking: false });
-
-      // Re-initialize after stop to be ready for next speech
-      debugLogger.log('TTS', 'Scheduling re-initialization in 100ms');
-      setTimeout(() => {
-        initializeSherpaTTS();
-      }, 100);
-
-      debugLogger.info('TTS', 'Playback stopped successfully');
-    } catch (error) {
-      debugLogger.error('TTS', 'Failed to stop playback', error);
-    }
-  } else {
-    debugLogger.warn('TTS', 'Cannot stop - module not available or not initialized');
-  }
-}
-
-/**
- * Deinitialize and free resources
- */
-export function deinitialize(): void {
-  debugLogger.info('TTS', 'deinitialize() called');
-
-  if (NATIVE_MODULE_AVAILABLE) {
-    try {
-      debugLogger.log('TTS', 'Calling TTSManager.deinitialize() to free resources');
-      TTSManager.deinitialize();
-      debugLogger.info('TTS', 'TTS resources freed successfully');
-    } catch (error) {
-      debugLogger.error('TTS', 'Failed to deinitialize', error);
-    }
-  }
-  updateState({ initialized: false, speaking: false, error: null });
-}
-
-/**
- * Check if Sherpa TTS is available (native module loaded)
- */
-export function isAvailable(): boolean {
-  return NATIVE_MODULE_AVAILABLE && currentState.initialized;
-}
-
-/**
- * Check if currently speaking
- */
-export async function isSpeaking(): Promise<boolean> {
-  return currentState.speaking;
-}
-
-// Voice selection removed - only Lessac voice is available
-
-/**
- * Add listener for volume updates during playback
- */
-export function addVolumeListener(callback: (volume: number) => void): (() => void) | null {
-  if (!ttsManagerEmitter) return null;
-
-  const subscription = ttsManagerEmitter.addListener('VolumeUpdate', (event) => {
-    callback(event.volume);
-  });
-
-  return () => subscription.remove();
-}
-
-export default {
-  initialize: initializeSherpaTTS,
-  speak,
-  stop,
-  deinitialize,
-  isAvailable,
-  isSpeaking,
-  addStateListener,
-  getState,
-  addVolumeListener,
-};

tsconfig.json

@@ -2,6 +2,7 @@
   "extends": "expo/tsconfig.base",
   "compilerOptions": {
     "strict": true,
+    "resolveJsonModule": true,
     "paths": {
       "@/*": [
         "./*"