WellNuo/CLAUDE.md

WellNuo - Project Architecture

API-First Architecture

IMPORTANT: This project uses an API-first approach. NO local storage for business data!

Key Principles

1. All beneficiary data comes from the remote API only

   • No AsyncStorage for beneficiaries
   • No local caching of beneficiary lists
   • Every CRUD operation goes through the WellNuo API

2. Single Source of Truth: WellNuo Backend

   • All beneficiary data is stored in PostgreSQL (hosted on eluxnetworks.net)
   • Changes are immediately persisted to the server
   • App always fetches fresh data on screen focus

API Endpoints

WellNuo API (Primary)

Base URL: https://wellnuo.smartlaunchhub.com/api

Method	Endpoint	Description
GET	/me/beneficiaries	List all beneficiaries for current user
GET	/me/beneficiaries/:id	Get single beneficiary details
POST	/me/beneficiaries	Create new beneficiary
PATCH	/me/beneficiaries/:id	Update beneficiary
DELETE	/me/beneficiaries/:id	Remove beneficiary access
POST	/me/beneficiaries/:id/activate	Activate device for beneficiary
GET	/auth/me	Get current user profile with beneficiaries
PATCH	/auth/profile	Update user profile (firstName, lastName, phone)

Authentication: Bearer token (JWT from /auth/verify-otp)

Legacy API (WebView Dashboard)

Base URL: https://eluxnetworks.net/function/well-api/api

Used only for:

• Developer Mode / WebView dashboard
• Real sensor data visualization (from NDK devices)

Data Flow

┌─────────────┐     ┌──────────────────┐     ┌──────────────────┐
│  React App  │ ──▶ │  WellNuo Backend │ ──▶ │    PostgreSQL    │
│  (Expo)     │ ◀── │  (Express.js)    │ ◀── │ (eluxnetworks.net)│
└─────────────┘     └──────────────────┘     └──────────────────┘

Database Schema

• users - User accounts (email, password hash)
• person_details - Beneficiary profiles (firstName, lastName, avatar, etc.)
• user_access - Links accessor_id → beneficiary_id with role (owner/viewer)
• subscriptions - Subscription status for beneficiaries
• devices - IoT devices linked to beneficiaries

What NOT to do

• ❌ Don't use localBeneficiaries from BeneficiaryContext for actual data
• ❌ Don't save beneficiary data to AsyncStorage
• ❌ Don't cache API responses locally for offline use
• ❌ Don't assume data is available without API call
• ❌ Don't save user profile data (name, phone) to SecureStore
• ❌ Don't use userName from SecureStore - it's legacy!

What TO do

• ✅ Always fetch fresh data via api.getAllBeneficiaries() or api.getWellNuoBeneficiary(id)
• ✅ Get user profile via api.getMe(), update via api.updateProfile() (calls /auth/profile)
• ✅ Use useFocusEffect to reload data when screen gains focus
• ✅ Handle loading and error states for all API calls
• ✅ Show appropriate feedback on successful operations
• ✅ Only store in SecureStore: accessToken, userId, userEmail (technical auth data)

Navigation Controller (Centralized Routing)

All navigation decisions are centralized in services/NavigationController.ts.

IMPORTANT: NavigationController is NOT automatic middleware!

• It does NOT intercept or control all navigation automatically
• It's a utility that must be EXPLICITLY called at specific points in the app
• You must manually call nav.navigateAfterLogin(), nav.navigateAfterAddBeneficiary(), etc.
• Regular navigation (e.g., router.push('/profile')) works independently

When to use NavigationController:

• ✅ After OTP verification (login flow)
• ✅ After creating a new beneficiary
• ✅ After completing purchase/demo selection
• ✅ When you need to determine the "correct next screen" based on user state

When NOT needed:

• ❌ Simple screen-to-screen navigation (just use router.push())
• ❌ Tab navigation (handled by Expo Router)
• ❌ Back navigation (handled automatically)

Key Files

• services/NavigationController.ts - All routing logic and conditions
• hooks/useNavigationFlow.ts - React hook for easy usage in components

Navigation Flow After Login

User enters OTP code
        ↓
   Has firstName in profile?
        │
   NO  → /(auth)/enter-name
        │
   YES → Has beneficiaries?
        │
   NO  → /(auth)/add-loved-one
        │
   YES → Check equipment status of first beneficiary
        ├── none → /(auth)/purchase
        ├── ordered/shipped → /(tabs)/beneficiaries/:id/equipment
        ├── delivered → /(auth)/activate
        └── active/demo → /(tabs)/dashboard

Navigation After Adding Beneficiary

Beneficiary created in DB
        ↓
   User already has WellNuo devices?
        │
   NO  → /(auth)/purchase (buy equipment)
        │
   YES → /(auth)/activate (connect existing device)

Navigation After Purchase

Payment completed / Demo selected
        ↓
   Demo mode?
        │
   YES → /(auth)/activate (immediate activation)
        │
   NO  → /(tabs)/beneficiaries/:id/equipment (track delivery)

Usage Example

import { useNavigationFlow } from '@/hooks/useNavigationFlow';

function MyScreen() {
  const nav = useNavigationFlow();

  // After login - automatically determines correct screen
  nav.navigateAfterLogin(profile, beneficiaries);

  // After adding beneficiary
  nav.navigateAfterAddBeneficiary(42, hasExistingDevices);

  // After purchase
  nav.navigateAfterPurchase(42, { demo: true });

  // Quick shortcuts
  nav.goToDashboard();
  nav.goToPurchase(beneficiaryId);
  nav.goToActivate(beneficiaryId);
}

Available Routes (ROUTES constant)

ROUTES.AUTH.LOGIN           // /(auth)/login
ROUTES.AUTH.VERIFY_OTP      // /(auth)/verify-otp
ROUTES.AUTH.ENTER_NAME      // /(auth)/enter-name
ROUTES.AUTH.ADD_LOVED_ONE   // /(auth)/add-loved-one
ROUTES.AUTH.PURCHASE        // /(auth)/purchase
ROUTES.AUTH.ACTIVATE        // /(auth)/activate

ROUTES.TABS.DASHBOARD       // /(tabs)/dashboard
ROUTES.TABS.BENEFICIARIES   // /(tabs)/beneficiaries
ROUTES.TABS.CHAT            // /(tabs)/chat
ROUTES.TABS.VOICE           // /(tabs)/voice
ROUTES.TABS.PROFILE         // /(tabs)/profile

ROUTES.BENEFICIARY.DETAIL(id)       // /(tabs)/beneficiaries/:id
ROUTES.BENEFICIARY.SUBSCRIPTION(id) // /(tabs)/beneficiaries/:id/subscription
ROUTES.BENEFICIARY.EQUIPMENT(id)    // /(tabs)/beneficiaries/:id/equipment
ROUTES.BENEFICIARY.SHARE(id)        // /(tabs)/beneficiaries/:id/share

Development

Server Location

• Production: root@91.98.205.156:/var/www/wellnuo-api/
• PM2 process: wellnuo-api

Key Files

• services/api.ts - All API methods
• services/NavigationController.ts - Centralized routing logic
• hooks/useNavigationFlow.ts - Navigation hook for components
• contexts/BeneficiaryContext.tsx - Beneficiary state management (current selection only)
• app/(tabs)/beneficiaries/ - Beneficiary screens

Running Locally

# Start Expo on port 8081 with iPhone 16 Pro Max
IOS_SIMULATOR_UDID=6BB240A2-0F2F-41E4-B568-9FFAF9B7FBA2 npx expo start --port 8081 --ios