final app for testing and deployment

app/utils/qr_generator.py

@@ -6,7 +6,9 @@ import os
 import qrcode
 from qrcode.image.styledpil import StyledPilImage
 from qrcode.image.styles.moduledrawers import RoundedModuleDrawer, CircleModuleDrawer, SquareModuleDrawer
+from qrcode.image.svg import SvgPathImage, SvgFragmentImage, SvgFillImage
 from PIL import Image
+import io
 
 class QRCodeGenerator:
     def __init__(self):
@@ -19,8 +21,8 @@ class QRCodeGenerator:
             'style': 'square'
         }
     
-    def generate_qr_code(self, data, settings=None):
-        """Generate QR code with custom settings"""
+    def generate_qr_code(self, data, settings=None, format='PNG'):
+        """Generate QR code with custom settings in PNG or SVG format"""
         if settings is None:
             settings = self.default_settings.copy()
         else:
@@ -28,6 +30,13 @@ class QRCodeGenerator:
             merged_settings.update(settings)
             settings = merged_settings
         
+        if format.upper() == 'SVG':
+            return self._generate_svg_qr_code(data, settings)
+        else:
+            return self._generate_png_qr_code(data, settings)
+    
+    def _generate_png_qr_code(self, data, settings):
+        """Generate PNG QR code (existing functionality)"""
         # Create QR code instance
         qr = qrcode.QRCode(
             version=1,
@@ -64,6 +73,47 @@ class QRCodeGenerator:
         
         return img
     
+    def _generate_svg_qr_code(self, data, settings):
+        """Generate SVG QR code"""
+        # Create QR code instance
+        qr = qrcode.QRCode(
+            version=1,
+            error_correction=settings['error_correction'],
+            box_size=settings['size'],
+            border=settings['border'],
+        )
+        
+        qr.add_data(data)
+        qr.make(fit=True)
+        
+        # Choose SVG image factory based on style
+        if settings['style'] == 'circle':
+            # Use SvgFillImage for better circle support
+            factory = SvgFillImage
+        else:
+            # Use SvgPathImage for square and rounded styles
+            factory = SvgPathImage
+        
+        # Generate SVG image
+        img = qr.make_image(
+            image_factory=factory,
+            fill_color=settings['foreground_color'],
+            back_color=settings['background_color']
+        )
+        
+        return img
+    
+    def generate_qr_code_svg_string(self, data, settings=None):
+        """Generate QR code as SVG string"""
+        svg_img = self.generate_qr_code(data, settings, format='SVG')
+        
+        # Convert SVG image to string
+        svg_buffer = io.BytesIO()
+        svg_img.save(svg_buffer)
+        svg_buffer.seek(0)
+        
+        return svg_buffer.getvalue().decode('utf-8')
+    
     def add_logo(self, qr_img, logo_path, logo_size_ratio=0.2):
         """Add logo to QR code"""
         try: