Update app.py

app.py

@@ -15,8 +15,28 @@ with col3:
 # Second row with three file upload buttons
 upload_col1, upload_col2, upload_col3 = st.columns(3)
 with upload_col1:
-    st.file_uploader("Upload Premiums Data", key="premiums")
+    uploaded_file_premiums = st.file_uploader("", key="premiums")
 with upload_col2:
-    st.file_uploader("Upload Incurred Claims Recoveries Data", key="claims_recoveries")
+    uploaded_file_claims_recoveries = st.file_uploader("", key="claims_recoveries")
 with upload_col3:
-    st.file_uploader("Upload Claims Count Data", key="claims_count")
+    uploaded_file_claims_count = st.file_uploader("", key="claims_count")
+
+# Third row with three buttons, enabled only if the corresponding file is uploaded
+button_col1, button_col2, button_col3 = st.columns(3)
+with button_col1:
+    if uploaded_file_premiums is not None:
+        st.button("Process Premiums Data")
+    else:
+        st.button("Process Premiums Data", disabled=True)
+
+with button_col2:
+    if uploaded_file_claims_recoveries is not None:
+        st.button("Process Claims Recoveries Data")
+    else:
+        st.button("Process Claims Recoveries Data", disabled=True)
+
+with button_col3:
+    if uploaded_file_claims_count is not None:
+        st.button("Process Claims Count Data")
+    else:
+        st.button("Process Claims Count Data", disabled=True)