Update app.py

app.py

@@ -128,21 +128,32 @@ with col1:
 
     # Generate button with callback
     def generate_offer():
-        has_manual_input = bool(skills and product_service)
+        has_manual_input = bool(skills or product_service)  # Changed from 'and' to 'or'
         has_file_input = bool('uploaded_file' in locals() and uploaded_file is not None)
         has_image_input = bool('uploaded_image' in locals() and uploaded_image is not None)
 
-        # Handle all scenarios
-        if not (has_manual_input or has_file_input or has_image_input):
-            st.error('Por favor ingresa texto, sube un archivo o una imagen')
+        # Check for valid combinations
+        valid_input = (
+            (has_manual_input and (has_file_input or has_image_input)) or  # Text + (file or image)
+            (not has_manual_input and (has_file_input or has_image_input)) or  # Only file or image
+            has_file_input or  # Only file
+            has_image_input  # Only image
+        )
+
+        if not valid_input:
+            st.error('Por favor ingresa una combinación válida:\n' +
+                    '- Texto + (archivo o imagen)\n' +
+                    '- Solo archivo o imagen\n' +
+                    '- Solo archivo\n' +
+                    '- Solo imagen')
             return
         
         st.session_state.submitted = True
         
         # Store inputs based on what's available
         if has_manual_input:
-            st.session_state.skills = skills
-            st.session_state.product_service = product_service
+            st.session_state.skills = skills if skills else ""
+            st.session_state.product_service = product_service if product_service else ""
         
         if has_file_input:
             st.session_state.file_content = file_content
@@ -152,9 +163,7 @@ with col1:
         
         # Set input type
         if has_image_input:
-            if has_manual_input and has_file_input:
-                st.session_state.input_type = "all"
-            elif has_manual_input:
+            if has_manual_input:
                 st.session_state.input_type = "manual_image"
             elif has_file_input:
                 st.session_state.input_type = "file_image"
@@ -163,6 +172,8 @@ with col1:
         else:
             if has_manual_input and has_file_input:
                 st.session_state.input_type = "both"
+            elif has_file_input:
+                st.session_state.input_type = "file"
             elif has_manual_input:
                 st.session_state.input_type = "manual"
             else: