Add whatsapp feature

services/notification/app/consumers/po_event_consumer.py

@@ -11,6 +11,7 @@ from datetime import datetime
 
 from shared.messaging.rabbitmq import RabbitMQClient
 from app.services.email_service import EmailService
+from app.services.whatsapp_service import WhatsAppService
 
 logger = structlog.get_logger()
 
@@ -18,10 +19,12 @@ logger = structlog.get_logger()
 class POEventConsumer:
     """
     Consumes purchase order events from RabbitMQ and sends notifications
+    Sends both email and WhatsApp notifications to suppliers
     """
 
-    def __init__(self, email_service: EmailService):
+    def __init__(self, email_service: EmailService, whatsapp_service: WhatsAppService = None):
         self.email_service = email_service
+        self.whatsapp_service = whatsapp_service
 
         # Setup Jinja2 template environment
         template_dir = Path(__file__).parent.parent / 'templates'
@@ -50,17 +53,24 @@ class POEventConsumer:
                     )
 
                     # Send notification email
-                    success = await self.send_po_approved_email(event_data)
+                    email_success = await self.send_po_approved_email(event_data)
 
-                    if success:
+                    # Send WhatsApp notification if service is available
+                    whatsapp_success = False
+                    if self.whatsapp_service:
+                        whatsapp_success = await self.send_po_approved_whatsapp(event_data)
+
+                    if email_success:
                         logger.info(
                             "PO approved email sent successfully",
-                            po_id=event_data.get('data', {}).get('po_id')
+                            po_id=event_data.get('data', {}).get('po_id'),
+                            whatsapp_sent=whatsapp_success
                         )
                     else:
                         logger.error(
                             "Failed to send PO approved email",
-                            po_id=event_data.get('data', {}).get('po_id')
+                            po_id=event_data.get('data', {}).get('po_id'),
+                            whatsapp_sent=whatsapp_success
                         )
 
             except Exception as e:
@@ -276,3 +286,76 @@ This is an automated email from your Bakery Management System.
             return dt.strftime('%B %d, %Y')
         except Exception:
             return iso_date
+
+    async def send_po_approved_whatsapp(self, event_data: Dict[str, Any]) -> bool:
+        """
+        Send PO approved WhatsApp notification to supplier
+
+        This sends a WhatsApp Business template message notifying the supplier
+        of a new purchase order. The template must be pre-approved in Meta Business Suite.
+
+        Args:
+            event_data: Full event payload from RabbitMQ
+
+        Returns:
+            bool: True if WhatsApp message sent successfully
+        """
+        try:
+            # Extract data from event
+            data = event_data.get('data', {})
+
+            # Check for supplier phone number
+            supplier_phone = data.get('supplier_phone')
+            if not supplier_phone:
+                logger.debug(
+                    "No supplier phone in event, skipping WhatsApp notification",
+                    po_id=data.get('po_id')
+                )
+                return False
+
+            # Extract tenant ID for tracking
+            tenant_id = data.get('tenant_id')
+
+            # Prepare template parameters
+            # Template: "Hola {{1}}, has recibido una nueva orden de compra {{2}} por un total de {{3}}."
+            # Parameters: supplier_name, po_number, total_amount
+            template_params = [
+                data.get('supplier_name', 'Estimado proveedor'),
+                data.get('po_number', 'N/A'),
+                f"€{data.get('total_amount', 0):.2f}"
+            ]
+
+            # Send WhatsApp template message
+            # The template must be named 'po_notification' and approved in Meta Business Suite
+            success = await self.whatsapp_service.send_message(
+                to_phone=supplier_phone,
+                message="",  # Not used for template messages
+                template_name="po_notification",  # Must match template name in Meta
+                template_params=template_params,
+                tenant_id=tenant_id
+            )
+
+            if success:
+                logger.info(
+                    "PO approved WhatsApp sent successfully",
+                    po_id=data.get('po_id'),
+                    supplier_phone=supplier_phone,
+                    template="po_notification"
+                )
+            else:
+                logger.warning(
+                    "Failed to send PO approved WhatsApp",
+                    po_id=data.get('po_id'),
+                    supplier_phone=supplier_phone
+                )
+
+            return success
+
+        except Exception as e:
+            logger.error(
+                "Error sending PO approved WhatsApp",
+                error=str(e),
+                po_id=data.get('po_id'),
+                exc_info=True
+            )
+            return False