# WellNuo Lite

Voice AI companion for elderly care monitoring.

---

## Quick Start

```bash
npm install
expo-sim 8081  # Запуск на симуляторе
```

---

## App Store Build & Submit

### Credentials

| Parameter | Value |
|-----------|-------|
| Bundle ID | `com.wellnuo.BluetoothScanner` |
| Apple Team ID | `UHLZD54ULZ` |
| ASC App ID | `6756594148` |
| ASC API Key ID | `GA9C2GRPHS` |
| ASC Issuer ID | `dcac5647-0710-4764-affd-2d3270bf49d4` |
| API Key File | `AuthKey_GA9C2GRPHS.p8` |

### Build iOS for TestFlight

```bash
./build-ios.sh production
```

Или вручную:

```bash
export EXPO_APPLE_TEAM_ID="UHLZD54ULZ"
export EXPO_APPLE_TEAM_TYPE="INDIVIDUAL"
export EXPO_ASC_KEY_ID="GA9C2GRPHS"
export EXPO_ASC_ISSUER_ID="dcac5647-0710-4764-affd-2d3270bf49d4"
export EXPO_ASC_API_KEY_PATH="$(pwd)/AuthKey_GA9C2GRPHS.p8"

npx eas-cli build --platform ios --profile production
```

### Submit to TestFlight

После завершения сборки:

```bash
eas submit --platform ios --latest
```

### Check Build Status

```bash
eas build:list --platform ios --limit 5
```

---

## Julia AI Voice Agent

### Architecture

```
Mobile App (LiveKit SDK)
        ↓
    LiveKit Cloud
        ↓
    Julia AI Agent (CA_zKZCpX36ZT5C)
        ├── STT: Deepgram Nova-2
        ├── LLM: OpenAI GPT-4o
        └── TTS: Deepgram Aura Asteria
```

### Quick Reference

| Item | Value |
|------|-------|
| Agent ID | `CA_zKZCpX36ZT5C` |
| Agent Name | `julia-ai` |
| LiveKit Cloud | `live-kit-demo-70txlh6a.livekit.cloud` |
| Token Server URL | `https://wellnuo.smartlaunchhub.com/julia/token` |

### Project Structure

```
julia-agent/
├── julia-ai/                   # LiveKit Agent (Python)
│   ├── src/agent.py           # Main agent code
│   ├── livekit.toml           # Agent deployment config
│   ├── .env.local             # API keys (OPENAI, DEEPGRAM)
│   ├── pyproject.toml         # Python dependencies
│   └── Dockerfile             # Deployment container
└── token-server/               # Token Server (Node.js)
    ├── server.js              # Express server
    └── .env                   # LiveKit credentials
```

### How It Works

1. **Mobile app** requests token from Token Server
2. **Token Server** generates JWT with room + agent config
3. **Mobile app** connects to LiveKit Cloud with token
4. **LiveKit Cloud** spawns Julia AI agent in the room
5. **Agent** handles voice conversation using STT → LLM → TTS pipeline

### Editing Agent Behavior

Agent configuration is in `julia-agent/julia-ai/src/agent.py`:

**Change AI personality (system prompt):**
```python
# In build_system_prompt() function - line 77
return f"""You are Julia, a compassionate AI care assistant...
```

**Change voice model:**
```python
# Line 186 - TTS model
tts=deepgram.TTS(model="aura-asteria-en"),  # Female voice
# Options: aura-asteria-en, aura-luna-en, aura-stella-en
```

**Change LLM model:**
```python
# Line 181-184 - LLM model
llm=openai.LLM(
    model="gpt-4o",  # or "gpt-4o-mini" for faster/cheaper
    api_key=os.getenv("OPENAI_API_KEY"),
),
```

**Change STT model:**
```python
# Line 179 - Speech-to-text
stt=deepgram.STT(model="nova-2"),  # Most accurate
```

**Change initial greeting:**
```python
# Line 212-214 - First message when user connects
await session.generate_reply(
    instructions="Greet the user warmly as Julia..."
)
```

### Deploy Agent Changes

```bash
cd julia-agent/julia-ai

# Install LiveKit CLI (if not installed)
brew install livekit/tap/lk

# Deploy to LiveKit Cloud
lk agent deploy
```

The agent will be rebuilt and deployed automatically. Takes ~2-3 minutes.

### Token Server

Generates LiveKit tokens for mobile app connections.

**Location:** `root@91.98.205.156:/var/www/julia-token-server/`
**PM2 process:** `julia-token-server`
**URL:** `https://wellnuo.smartlaunchhub.com/julia/token`

**API:**
```bash
POST /token
Body: { "userId": "user-123" }
Response: { "token": "...", "roomName": "...", "wsUrl": "wss://..." }
```

**Update token server:**
```bash
# Copy changes to server
scp julia-agent/token-server/server.js root@91.98.205.156:/var/www/julia-token-server/

# Restart
ssh root@91.98.205.156 "pm2 restart julia-token-server"
```

### Environment Variables

**Agent (.env.local):**
```env
OPENAI_API_KEY=sk-...
DEEPGRAM_API_KEY=...
LIVEKIT_URL=wss://live-kit-demo-70txlh6a.livekit.cloud
LIVEKIT_API_KEY=...
LIVEKIT_API_SECRET=...
```

**Token Server (.env):**
```env
LIVEKIT_API_KEY=APIEivUcPW3WSrV
LIVEKIT_API_SECRET=...
PORT=3001
```

### Testing Locally

```bash
cd julia-agent/julia-ai

# Install dependencies
uv sync

# Download required models (first time)
uv run python src/agent.py download-files

# Test in console
uv run python src/agent.py console

# Run for frontend connection
uv run python src/agent.py dev
```

### LiveKit Dashboard

Monitor agent sessions and logs: https://cloud.livekit.io

---

## Project Structure

```
WellNuoLite/
├── app/                    # Expo Router screens
│   ├── (auth)/            # Auth flow screens
│   └── (tabs)/            # Main app tabs
├── components/            # Reusable components
├── services/              # API, navigation
├── contexts/              # React contexts
├── julia-agent/           # LiveKit AI agent
│   └── julia-ai/
│       └── src/agent.py   # Main agent code
├── AuthKey_GA9C2GRPHS.p8  # ASC API Key
├── build-ios.sh           # iOS build script
├── eas.json               # EAS configuration
└── app.json               # Expo configuration
```

---

## Links

| Resource | URL |
|----------|-----|
| App Store Connect | https://appstoreconnect.apple.com |
| EAS Dashboard | https://expo.dev/accounts/serter20692/projects/WellNuo |
| LiveKit Dashboard | https://cloud.livekit.io |
| Privacy Policy | https://wellnuo.smartlaunchhub.com/privacy.html |
| Support | https://wellnuo.smartlaunchhub.com/support.html |

---

## Full App Store Instructions

See: `/Users/sergei/Desktop/WellNuo/INSTRUCTIONS_APP_STORE.md`

Contains:
- Screenshots requirements
- App Store texts (copy-paste ready)
- Privacy labels
- Review notes
- Checklist before submission