# QR Addon Activation

## ✅ Status: ACTIVATED

The QR addon (WhatsApp Baileys integration) has been successfully activated!

---

## 🔄 What Changed

### Before (Stub)
- All functions returned `false` or empty values
- No actual WhatsApp connection
- QR codes were not generated
- Messages could not be sent

### After (Real Implementation)
- ✅ Full Baileys WhatsApp integration
- ✅ QR code generation and database storage
- ✅ Session management with auto-reconnect
- ✅ Message sending/receiving
- ✅ Contact existence checking
- ✅ Profile picture generation
- ✅ Group metadata retrieval

---

## 📁 Files Modified

| File | Status |
|------|--------|
| `helper/addon/qr/index.js` | ✅ Replaced with real implementation |
| `helper/addon/qr/index_stub.js.bak` | ⚠️ Backup of original stub |

---

## 🚀 Features Now Available

### 1. QR Code Generation
```javascript
// Create WhatsApp session
await createSession(uniqueId, title);
// QR code will be saved to database automatically
```

### 2. Send Messages
```javascript
// Get session
const sock = getSession(uniqueId);

// Send text message
await sendMessage(sock, phoneNumber + "@s.whatsapp.net", {
  text: "Hello!"
});

// Send image
await sendMessage(sock, phoneNumber + "@s.whatsapp.net", {
  image: { url: "https://example.com/image.jpg" },
  caption: "Check this out!"
});
```

### 3. Session Management
```javascript
// Check if session exists
const exists = isSessionExists(uniqueId);

// Get session
const sock = getSession(uniqueId);

// Delete session
await deleteSession(uniqueId);
```

### 4. Contact Validation
```javascript
// Check if number exists on WhatsApp
const exists = await isExists(sock, phoneNumber + "@s.whatsapp.net");
```

---

## ⚙️ Configuration

### Environment Variables (`.env`)
No additional configuration needed. Uses existing:
```env
DBHOST=localhost
DBNAME=whatscrm
DBUSER=root
DBPASS=
DBPORT=3306
```

### Database Tables Used
- `instance` - Stores WhatsApp sessions, QR codes, and status
- `auth` - Baileys authentication data (if used)

---

## 📊 Session Status Flow

```
GENERATING → QR_READY → ACTIVE → DISCONNECTED
     ↓           ↓         ↓          ↓
  Creating   QR Code   Connected   Logged Out
  Session    Generated & Scanned  or Error
```

---

## 🔧 How to Use

### 1. Generate QR Code
**API Endpoint:** `POST /api/qr/gen_qr`
```json
{
  "title": "My WhatsApp",
  "uniqueId": "unique_session_id_123"
}
```

### 2. Get All Instances
**API Endpoint:** `GET /api/qr/get_all`

Returns all WhatsApp instances with their status.

### 3. Delete Instance
**API Endpoint:** `POST /api/qr/del_instance`
```json
{
  "uniqueId": "unique_session_id_123"
}
```

### 4. Change Status
**API Endpoint:** `POST /api/qr/change_instance_status`
```json
{
  "insId": "unique_session_id_123",
  "status": "available",
  "jid": "phoneNumber@s.whatsapp.net"
}
```

---

## 🛡️ Security Notes

1. **Session Storage**: Auth credentials saved in `sessions/` directory
2. **Auto-Reconnect**: Sessions auto-reconnect unless logged out
3. **QR Code Security**: QR codes stored in database (base64)
4. **Cleanup**: All sessions properly ended on server shutdown

---

## 🐛 Troubleshooting

### Session not connecting
- Check if phone number is already logged in elsewhere
- Verify `.env` database connection settings
- Check server logs for Baileys errors

### QR code not generating
- Ensure `instance` table exists in database
- Check write permissions for `sessions/` directory
- Verify `qrcode` npm package is installed

### Messages not sending
- Ensure session status is "ACTIVE"
- Verify phone number format (include country code)
- Check if recipient number exists on WhatsApp

---

## 📝 Additional Features

### WhatsApp Warmer
The warmer addon is now functional and will:
- Send messages between instances to keep sessions active
- Prevent WhatsApp from marking account as inactive
- Configurable via `warmers` table in database

### REST API
Full REST API available for:
- Sending messages (GET/POST)
- Multiple message types (text, image, video, audio, document, location)
- Authentication via API token

---

**Activation Date:** April 9, 2026  
**Version:** WhatsApp CRM v5.9  
**Baileys Version:** 7.0.0-rc.9
