Update app.py

app.py

@@ -16,25 +16,37 @@ genai.configure(api_key=os.getenv("GOOGLE_API_KEY"))
 
 # Función para obtener la respuesta del modelo Gemini
 def get_gemini_response(product_service, target_audience, skills, formula_type, temperature, file_content="", image_parts=None):
-    # Check if at least target audience is provided
-    if not target_audience:
-        return "El campo de público objetivo es obligatorio."
-    
-    # Check if at least one of product/service or skills is provided
-    if not product_service and not skills:
-        return "Debes proporcionar al menos tu producto/servicio o tus habilidades."
+    # Check if we have at least one source of information
+    has_file_content = bool(file_content.strip())
+    has_image = image_parts is not None
+    has_text_input = target_audience or product_service or skills
+    
+    if not (has_file_content or has_image or has_text_input):
+        return "Debes proporcionar al menos un tipo de información: público objetivo, producto/servicio, habilidades o un archivo de referencia."
+    
+    # If we only have file content but no other inputs, we can proceed
+    if (has_file_content or has_image) and not has_text_input:
+        # File-only mode
+        business_info = "Analyze the provided reference material to extract business information.\n"
+    else:
+        # Regular mode with validation
+        if not target_audience:
+            return "El campo de público objetivo es obligatorio cuando no se proporciona un archivo de referencia completo."
+        
+        if not product_service and not skills:
+            return "Debes proporcionar al menos tu producto/servicio o tus habilidades cuando no se proporciona un archivo de referencia completo."
+        
+        # Adjust prompt based on what's provided
+        business_info = f"Target Audience: {target_audience}\n"
+        
+        if product_service:
+            business_info += f"Product/Service: {product_service}\n"
+        
+        if skills:
+            business_info += f"My Skills/Expertise: {skills}\n"
     
     formula = puv_formulas[formula_type]
     
-    # Adjust prompt based on what's provided
-    business_info = f"Target Audience: {target_audience}\n"
-    
-    if product_service:
-        business_info += f"Product/Service: {product_service}\n"
-    
-    if skills:
-        business_info += f"My Skills/Expertise: {skills}\n"
-    
     # Add file content if available
     reference_info = ""
     if file_content: