Implement "Clear All Selections" button in Handbuilder tab of app.py to reset player selections, enhancing user interactivity. Update session state management to preserve user selections across reruns, improving overall functionality.

app.py

@@ -802,15 +802,27 @@ with tab3:
 with tab4:
     st.header("Handbuilder")
 
+    # Add a button to clear all checks
+    clear = st.button("Clear All Selections", key='clear_handbuild')
+
     # Prepare the player selection DataFrame (fresh on every rerun)
     player_select_df = dk_roo[['Player', 'Position', 'Team', 'Salary', 'Median', 'Order', 'Hand', 'Own%']].copy()
-    player_select_df['Select'] = False  # Add a checkbox column
+    player_select_df['Select'] = False  # Default: all unchecked
+
+    # If the clear button is pressed, keep all unchecked
+    # Otherwise, try to preserve the user's current selection
+    if 'handbuilder_editor_data' not in st.session_state or clear:
+        # On first load or when clear is pressed, start fresh (all unchecked)
+        edited_df = player_select_df
+    else:
+        # Otherwise, use the last edited data
+        edited_df = pd.DataFrame(st.session_state.handbuilder_editor_data)
 
     col1, col2 = st.columns([1, 2])
     with col2:
         st.subheader("Player Select")
         edited_df = st.data_editor(
-            player_select_df,
+            edited_df,
             column_config={
                 "Select": st.column_config.CheckboxColumn(
                     "Select",
@@ -822,6 +834,8 @@ with tab4:
             hide_index=True,
             key="handbuilder_editor"
         )
+        # Save the current state for next rerun
+        st.session_state.handbuilder_editor_data = edited_df
 
     # Filter selected players for the lineup
     selected_players = edited_df[edited_df['Select'] == True]
@@ -835,12 +849,3 @@ with tab4:
             height=300,
             hide_index=True
         )
-    
-    if st.button("Clear Data", key='clear_handbuild'):
-        player_select_df['Select'] = False
-        edited_df = st.data_editor(
-            player_select_df,
-            use_container_width=True,
-            hide_index=True,
-            key="handbuilder_editor"
-        )