Add handbuilder lineup export functionality in app.py by introducing a new export button. This allows users to download saved lineups as a CSV file, enhancing data management and user experience. Additionally, new column definitions for DraftKings and FanDuel handbuilder exports have been added for improved clarity.

app.py

@@ -24,6 +24,8 @@ player_roo_format = {'Top_finish': '{:.2%}','Top_5_finish': '{:.2%}', 'Top_10_fi
 
 dk_columns = ['SP1', 'SP2', 'C', '1B', '2B', '3B', 'SS', 'OF1', 'OF2', 'OF3', 'salary', 'proj', 'Team', 'Team_count', 'Secondary', 'Secondary_count', 'Own']
 fd_columns = ['P', 'C_1B', '2B', '3B', 'SS', 'OF1', 'OF2', 'OF3', 'UTIL', 'salary', 'proj', 'Team', 'Team_count', 'Secondary', 'Secondary_count', 'Own']
+dk_hb_columns = ['SP1', 'SP2', 'C', '1B', '2B', '3B', 'SS', 'OF1', 'OF2', 'OF3']
+fd_hb_columns = ['P', 'C_1B', '2B', '3B', 'SS', 'OF1', 'OF2', 'OF3', 'UTIL']
 dk_sd_columns = ['CPT', 'FLEX1', 'FLEX2', 'FLEX3', 'FLEX4', 'FLEX5', 'salary', 'proj', 'Team', 'Team_count', 'Secondary', 'Secondary_count', 'Own']
 fd_sd_columns = ['CPT', 'FLEX1', 'FLEX2', 'FLEX3', 'FLEX4', 'salary', 'proj', 'Team', 'Team_count', 'Secondary', 'Secondary_count', 'Own']
 
@@ -328,6 +330,11 @@ def convert_pm_df(array):
     array = pd.DataFrame(array)
     return array.to_csv().encode('utf-8')
 
+@st.cache_data
+def convert_hb_df(array, column_names):
+    array = pd.DataFrame(array, columns=column_names)
+    return array.to_csv().encode('utf-8')
+
 col1, col2 = st.columns([1, 9])
 with col1:
     if st.button("Load/Reset Data", key='reset'):
@@ -1385,7 +1392,7 @@ with tab4:
                     )
 
     # Optionally, add a button to clear the lineup
-    clear_col, save_col, blank_col = st.columns([2,2,8])
+    clear_col, save_col, export_col, blank_col = st.columns([2, 2, 2, 10])
     with clear_col:
         if st.button("Clear Lineup", key='clear_lineup'):
             st.session_state['handbuilder_lineup'] = pd.DataFrame(columns=['Player', 'Position', 'Team', 'Team_Total', 'Opp_Total', 'Salary', 'Median', '2x%', 'Own%', 'Slot', 'Order'])
@@ -1398,4 +1405,16 @@ with tab4:
             else:
                 st.session_state['saved_lineups'] = [st.session_state['handbuilder_lineup']['Player'].tolist()]
                 print(st.session_state['saved_lineups'])
-            st.rerun()
+            st.rerun()
+    with export_col:
+        if 'saved_lineups' in st.session_state and st.session_state['saved_lineups']:
+            # Convert list of lists to numpy array
+            saved_lineups_array = np.array(st.session_state['saved_lineups'])
+            st.download_button(
+                label="Export Handbuilds",
+                data=convert_hb_df(saved_lineups_array, dk_hb_columns if site_var == 'Draftkings' else fd_hb_columns),
+                file_name='handbuilds_export.csv',
+                mime='text/csv',
+            )
+        else:
+            st.write("No saved lineups to export")