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+# WooNooW Notification Strategy
+
+## Philosophy
+
+**Core Principle:** WooNooW provides the notification framework and email as the default channel. Additional channels (WhatsApp, Telegram, SMS, etc.) are provided by addons.
+
+---
+
+## Architecture
+
+### Core (WooNooW Plugin)
+
+**Provides:**
+1. **Notification Events System**
+ - Order placed
+ - Order status changed
+ - Low stock alert
+ - New customer registered
+ - etc.
+
+2. **Email Channel (Built-in)**
+ - Default notification channel
+ - Always available
+ - Template system
+ - Queue system for bulk sending
+
+3. **Notification Settings UI**
+ - Enable/disable notifications per event
+ - Configure which channels to use per event
+ - Template editor (for email)
+ - Channel-specific settings (provided by addons)
+
+4. **Addon Integration Points**
+ - `woonoow_notification_channels` filter - Register new channels
+ - `woonoow_notification_send_{channel}` action - Send via channel
+ - `woonoow_notification_settings_{channel}` filter - Channel settings UI
+ - `woonoow_notification_template_{channel}` filter - Channel templates
+
+---
+
+## Settings Page Structure
+
+```
+Notifications
+├── Events (What to notify)
+│ ├── Orders
+│ │ ├── Order Placed
+│ │ │ ├── ✓ Email (to admin)
+│ │ │ ├── ✓ WhatsApp (to customer) [if addon active]
+│ │ │ └── ✗ Telegram
+│ │ ├── Order Completed
+│ │ ├── Order Cancelled
+│ │ └── Order Refunded
+│ ├── Products
+│ │ ├── Low Stock Alert
+│ │ └── Out of Stock Alert
+│ └── Customers
+│ ├── New Customer
+│ └── Customer Note Added
+│
+├── Channels (How to notify)
+│ ├── Email (Built-in) ✓
+│ │ ├── From Name
+│ │ ├── From Email
+│ │ ├── SMTP Settings (optional)
+│ │ └── Templates
+│ ├── WhatsApp [Addon]
+│ │ ├── API Key
+│ │ ├── Phone Number
+│ │ └── Message Templates
+│ ├── Telegram [Addon]
+│ │ ├── Bot Token
+│ │ ├── Chat ID
+│ │ └── Message Format
+│ └── SMS [Addon]
+│ ├── Provider (Twilio, etc.)
+│ ├── API Credentials
+│ └── Message Templates
+│
+└── Templates
+ ├── Email Templates
+ ├── WhatsApp Templates [if addon active]
+ └── Telegram Templates [if addon active]
+```
+
+---
+
+## Implementation
+
+### 1. Core Notification System
+
+```php
+// includes/Core/Notifications/NotificationManager.php
+class NotificationManager {
+ private $channels = [];
+
+ public function register_channel($id, $label, $callback) {
+ $this->channels[$id] = [
+ 'label' => $label,
+ 'callback' => $callback,
+ ];
+ }
+
+ public function send($event, $data, $channels = ['email']) {
+ foreach ($channels as $channel) {
+ if (isset($this->channels[$channel])) {
+ call_user_func($this->channels[$channel]['callback'], $event, $data);
+ }
+ }
+ }
+}
+```
+
+### 2. Email Channel (Built-in)
+
+```php
+// includes/Core/Notifications/Channels/EmailChannel.php
+class EmailChannel {
+ public static function init() {
+ add_filter('woonoow_notification_channels', [__CLASS__, 'register']);
+ add_action('woonoow_notification_send_email', [__CLASS__, 'send'], 10, 2);
+ }
+
+ public static function register($channels) {
+ $channels['email'] = [
+ 'id' => 'email',
+ 'label' => 'Email',
+ 'icon' => 'mail',
+ 'builtin' => true,
+ ];
+ return $channels;
+ }
+
+ public static function send($event, $data) {
+ // Send email using WooNooW mail queue
+ }
+}
+```
+
+### 3. Addon Example: WhatsApp Channel
+
+```php
+// woonoow-whatsapp/includes/WhatsAppChannel.php
+class WhatsAppChannel {
+ public static function init() {
+ add_filter('woonoow_notification_channels', [__CLASS__, 'register']);
+ add_action('woonoow_notification_send_whatsapp', [__CLASS__, 'send'], 10, 2);
+ add_filter('woonoow_notification_settings_whatsapp', [__CLASS__, 'settings']);
+ }
+
+ public static function register($channels) {
+ $channels['whatsapp'] = [
+ 'id' => 'whatsapp',
+ 'label' => 'WhatsApp',
+ 'icon' => 'message-circle',
+ 'addon' => 'woonoow-whatsapp',
+ ];
+ return $channels;
+ }
+
+ public static function send($event, $data) {
+ // Send WhatsApp message via API
+ }
+
+ public static function settings() {
+ return [
+ 'api_key' => get_option('woonoow_whatsapp_api_key'),
+ 'phone_number' => get_option('woonoow_whatsapp_phone'),
+ ];
+ }
+}
+```
+
+---
+
+## Frontend (React SPA)
+
+### Notifications Settings Page
+
+```tsx
+// admin-spa/src/routes/Settings/Notifications.tsx
+
+interface NotificationChannel {
+ id: string;
+ label: string;
+ icon: string;
+ builtin?: boolean;
+ addon?: string;
+ enabled: boolean;
+}
+
+interface NotificationEvent {
+ id: string;
+ label: string;
+ description: string;
+ category: 'orders' | 'products' | 'customers';
+ channels: {
+ [channelId: string]: {
+ enabled: boolean;
+ recipient: 'admin' | 'customer' | 'both';
+ };
+ };
+}
+
+export default function NotificationsPage() {
+ // Fetch available channels (core + addons)
+ const { data: channels } = useQuery({
+ queryKey: ['notification-channels'],
+ queryFn: () => api.get('/notifications/channels'),
+ });
+
+ // Fetch notification events configuration
+ const { data: events } = useQuery({
+ queryKey: ['notification-events'],
+ queryFn: () => api.get('/notifications/events'),
+ });
+
+ return (
+
+ {branding.logo ? (
+
+ ) : (
+
+ {branding.tagline} +
+ )} +{__('Sign in to your admin dashboard')}