Add player validation function for lineups

Introduced a new function, validate_lineup_players, to ensure that all players in specified columns exist within a set of valid players. This function is applied to both DraftKings and FanDuel lineups, enhancing data integrity by filtering out invalid entries before further processing.

app.py

@@ -173,6 +173,22 @@ def init_baselines():
 
     return dk_raw, fd_raw, dk_secondary, fd_secondary
 
+@st.cache_data
+def validate_lineup_players(df, valid_players, player_columns):
+    """
+    Validates that all players in specified columns exist in valid_players set
+    
+    Args:
+        df: DataFrame containing lineups
+        valid_players: Set of valid player names
+        player_columns: List of columns containing player names
+    
+    Returns:
+        DataFrame with only valid lineups
+    """
+    valid_rows = df[player_columns].apply(lambda x: x.isin(valid_players)).all(axis=1)
+    return df[valid_rows]
+
 @st.cache_data
 def convert_df(array):
     array = pd.DataFrame(array, columns=column_names)
@@ -245,6 +261,11 @@ with tab1:
                 dk_id_dict = dict(zip(dk_raw.Player, dk_raw.player_id))
                 fd_id_dict = dict(zip(fd_raw.Player, fd_raw.player_id))
 
+                DK_seed = validate_lineup_players(DK_seed, set(dk_raw.Player), ['PG', 'SG', 'SF', 'PF', 'C', 'G', 'F', 'FLEX'])
+                FD_seed = validate_lineup_players(FD_seed, set(fd_raw.Player), ['PG1', 'PG2', 'SG1', 'SG2', 'SF1', 'SF2', 'PF1', 'PF2', 'C1'])
+                DK_secondary = validate_lineup_players(DK_secondary, set(dk_secondary.Player), ['PG', 'SG', 'SF', 'PF', 'C', 'G', 'F', 'FLEX'])
+                FD_secondary = validate_lineup_players(FD_secondary, set(fd_secondary.Player), ['PG1', 'PG2', 'SG1', 'SG2', 'SF1', 'SF2', 'PF1', 'PF2', 'C1'])
+
         sim_slate_var1 = st.radio("Which data are you loading?", ('Main Slate', 'Secondary Slate'), key='sim_slate_var1')
         sim_site_var1 = st.radio("What site are you working with?", ('Draftkings', 'Fanduel'), key='sim_site_var1')
             
@@ -307,11 +328,15 @@ with tab1:
                 if sim_slate_var1 == 'Main Slate':
                     st.session_state.working_seed = init_DK_seed_frames(sharp_split)
                     dk_id_dict = dict(zip(dk_raw.Player, dk_raw.player_id))
+
+                    st.session_state.dk_raw = validate_lineup_players(dk_raw, set(st.session_state.working_seed.Player), ['PG', 'SG', 'SF', 'PF', 'C', 'G', 'F', 'FLEX'])
                     raw_baselines = dk_raw
                     column_names = dk_columns
                 elif sim_slate_var1 == 'Secondary Slate':
                     st.session_state.working_seed = init_DK_secondary_seed_frames(sharp_split)
                     dk_id_dict = dict(zip(dk_secondary.Player, dk_secondary.player_id))
+
+                    st.session_state.dk_secondary = validate_lineup_players(dk_secondary, set(st.session_state.working_seed.Player), ['PG', 'SG', 'SF', 'PF', 'C', 'G', 'F', 'FLEX'])
                     raw_baselines = dk_secondary
                     column_names = dk_columns
 
@@ -319,11 +344,15 @@ with tab1:
                 if sim_slate_var1 == 'Main Slate':
                     st.session_state.working_seed = init_FD_seed_frames(sharp_split)
                     fd_id_dict = dict(zip(fd_raw.Player, fd_raw.player_id))
+
+                    st.session_state.fd_raw = validate_lineup_players(fd_raw, set(st.session_state.working_seed.Player), ['PG1', 'PG2', 'SG1', 'SG2', 'SF1', 'SF2', 'PF1', 'PF2', 'C1'])
                     raw_baselines = fd_raw
                     column_names = fd_columns
                 elif sim_slate_var1 == 'Secondary Slate':
                     st.session_state.working_seed = init_FD_secondary_seed_frames(sharp_split)
                     fd_id_dict = dict(zip(fd_secondary.Player, fd_secondary.player_id))
+
+                    st.session_state.fd_secondary = validate_lineup_players(fd_secondary, set(st.session_state.working_seed.Player), ['PG1', 'PG2', 'SG1', 'SG2', 'SF1', 'SF2', 'PF1', 'PF2', 'C1'])
                     raw_baselines = fd_secondary
                     column_names = fd_columns
 
@@ -665,12 +694,14 @@ with tab2:
                         st.session_state.working_seed = init_DK_seed_frames(sharp_split_var)
                         dk_id_dict = dict(zip(dk_raw.Player, dk_raw.player_id))
 
+                        st.session_state.dk_raw = validate_lineup_players(dk_raw, set(st.session_state.working_seed.Player), ['PG', 'SG', 'SF', 'PF', 'C', 'G', 'F', 'FLEX'])
                         raw_baselines = dk_raw
                         column_names = dk_columns
                     elif slate_var1 == 'Secondary Slate':
                         st.session_state.working_seed = init_DK_secondary_seed_frames(sharp_split_var)
                         dk_id_dict = dict(zip(dk_secondary.Player, dk_secondary.player_id))
 
+                        st.session_state.dk_secondary = validate_lineup_players(dk_secondary, set(st.session_state.working_seed.Player), ['PG', 'SG', 'SF', 'PF', 'C', 'G', 'F', 'FLEX'])
                         raw_baselines = dk_secondary
                         column_names = dk_columns
                 
@@ -694,12 +725,14 @@ with tab2:
                         st.session_state.working_seed = init_FD_seed_frames(sharp_split_var)
                         fd_id_dict = dict(zip(fd_raw.Player, fd_raw.player_id))
 
+                        st.session_state.fd_raw = validate_lineup_players(fd_raw, set(st.session_state.working_seed.Player), ['PG1', 'PG2', 'SG1', 'SG2', 'SF1', 'SF2', 'PF1', 'PF2', 'C1'])
                         raw_baselines = fd_raw
                         column_names = fd_columns
                     elif slate_var1 == 'Secondary Slate':
                         st.session_state.working_seed = init_FD_secondary_seed_frames(sharp_split_var)
                         fd_id_dict = dict(zip(fd_secondary.Player, fd_secondary.player_id))
-                    
+
+                        st.session_state.fd_secondary = validate_lineup_players(fd_secondary, set(st.session_state.working_seed.Player), ['PG1', 'PG2', 'SG1', 'SG2', 'SF1', 'SF2', 'PF1', 'PF2', 'C1'])
                         raw_baselines = fd_secondary
                         column_names = fd_columns