feat: Add Telegram chat ID to ShopModel for automatic invoice sending

chore: Update Dockerfile to install WeasyPrint dependencies feat: Enhance ShopOrderModelAdmin with invoice download buttons feat: Implement invoice generation for OrderModel and ShopOrderModel feat: Send invoice to shop's Telegram chat upon ShopOrderModel creation feat: Create Celery task to send shop order invoice via Telegram feat: Add invoice download endpoints for OrderModel and ShopOrderModel feat: Implement views for downloading order and shop order invoices chore: Update requirements.txt to include necessary packages for PDF generation feat: Create HTML templates for order and shop order invoices
2025-12-28 11:43:33 +03:30
parent 6a7e526f23
commit 34715994ce
12 changed files with 1168 additions and 5 deletions
@@ -119,4 +119,63 @@ def generate_daily_shop_reports():
    
    result = f'Generated reports for {target_date}: {reports_created} created, {reports_updated} updated'
    logging.info(result)
-    return result
+    return result
+
+
+@shared_task
+def send_shop_order_invoice_telegram_task(shop_order_id, chat_id, bot_token):
+    """Send shop order invoice PDF to Telegram chat.
+    
+    Args:
+        shop_order_id: ID of the ShopOrderModel
+        chat_id: Telegram chat ID to send invoice to
+        bot_token: Telegram bot token for authentication
+        
+    Returns:
+        Success or error message
+    """
+    import asyncio
+    import io
+    from telegram import Bot
+    from telegram.error import TelegramError
+    from .invoice_generator import generate_shop_order_invoice
+    from .models import ShopOrderModel
+    
+    try:
+        # Get the shop order
+        shop_order = ShopOrderModel.objects.get(pk=shop_order_id)
+        
+        # Generate invoice PDF
+        pdf_buffer = generate_shop_order_invoice(shop_order_id)
+        
+        # Reset buffer position
+        pdf_buffer.seek(0)
+        
+        # Send via Telegram
+        async def send_invoice():
+            bot = Bot(token=bot_token)
+            await bot.send_document(
+                chat_id=chat_id,
+                document=pdf_buffer,
+                filename=f'invoice_shop_order_{shop_order_id}.pdf',
+                caption=f'فاکتور سفارش #{shop_order_id}\n{shop_order.shop.shop_name}'
+            )
+        
+        # Run async function
+        asyncio.run(send_invoice())
+        
+        logging.info(f'Successfully sent shop order invoice {shop_order_id} to Telegram chat {chat_id}')
+        return f'Invoice sent successfully to chat {chat_id}'
+        
+    except ShopOrderModel.DoesNotExist:
+        error_msg = f'ShopOrderModel with id {shop_order_id} does not exist'
+        logging.error(error_msg)
+        return error_msg
+    except TelegramError as e:
+        error_msg = f'Telegram error sending invoice {shop_order_id}: {str(e)}'
+        logging.error(error_msg)
+        return error_msg
+    except Exception as e:
+        error_msg = f'Error sending invoice {shop_order_id} to Telegram: {str(e)}'
+        logging.error(error_msg)
+        return error_msg