Update src/streamlit_app.py

src/streamlit_app.py

@@ -208,7 +208,7 @@ elif page:
     st.title("🍿 Rate Random Movies")
         # Genre- und Jahrfilter
     all_genres = sorted(set(genre.strip() for sublist in movie_df["genres"].dropna().str.split("|") for genre in sublist))
-    selected_genres = st.multiselect("Select genres:", options=all_genres, default=all_genres)
+    selected_genres = st.multiselect("Select genres:", options=all_genres, placeholder="All genres")
     
     min_year = int(movie_df["year"].min())
     max_year = int(movie_df["year"].max())
@@ -216,8 +216,14 @@ elif page:
     
     # Gefilterter Pool
     filtered_df = movie_df[
+        if filtered_df.empty:
+            st.warning("No movies match the selected filters.")
+            st.stop()
         movie_df["year"].between(selected_years[0], selected_years[1]) &
-        movie_df["genres"].apply(lambda x: any(g in x.split("|") for g in selected_genres))
+        (
+            (movie_df["genres"].apply(lambda x: any(g in x.split("|") for g in selected_genres)))
+            if selected_genres else True
+        )
     ].copy()
     
     # Neuen Pool bei Filteränderung neu setzen
@@ -310,7 +316,6 @@ elif search_query:
                 st.markdown(f"[Details](/?movie_id={movie['movieId']})", unsafe_allow_html=True)
 else:
     st.title("Welcome to Movie Recommender")
-    st.write("Use the navigation above to explore.")
 
     if not all_ratings_data:
         st.info("No ratings available yet. Start rating some movies!")
@@ -319,33 +324,30 @@ else:
         ratings_df["timestamp"] = pd.to_datetime(ratings_df["timestamp"])
         merged = pd.merge(ratings_df, movie_df, left_on="movie_id", right_on="movieId")
 
-        def show_movie_row(movie_row):
-            poster_url, _ = get_tmdb_data(movie_row["clean_title"], movie_row["year"])
-            cols = st.columns([1, 4])
-            with cols[0]:
-                if poster_url and "placeholder.com" not in poster_url:
-                    st.image(poster_url, width=100)
-                else:
-                    st.markdown("""
-                        <div style='width:100px;height:150px;border:2px dashed gray;display:flex;align-items:center;justify-content:center;color:gray;font-size:12px;'>No picture<br>available</div>
-                    """, unsafe_allow_html=True)
-            with cols[1]:
-                st.markdown(f"**[{movie_row['clean_title']}](/?movie_id={movie_row['movieId']})**")
-                st.markdown(f"{render_star_rating(movie_row['rating'])}", unsafe_allow_html=True)
-                st.caption(f"{movie_row['genres']} · {movie_row['year']} · {movie_row['timestamp'].strftime('%Y-%m-%d')}")
+        def make_clickable_title(row):
+            return f"<a href='/?movie_id={row['movieId']}' target='_self'>{row['clean_title']}</a>"
+
+        def show_table(dataframe, label):
+            st.subheader(label)
+            if dataframe.empty:
+                st.caption("No entries.")
+                return
+            df_display = dataframe[["movieId", "clean_title", "rating", "genres", "year", "timestamp"]].copy()
+            df_display["Title"] = df_display.apply(make_clickable_title, axis=1)
+            df_display["Rated"] = df_display["rating"].apply(render_star_rating)
+            df_display["Date"] = df_display["timestamp"].dt.strftime("%Y-%m-%d")
+            df_display = df_display[["Title", "Rated", "genres", "year", "Date"]]
+            st.markdown(df_display.to_html(escape=False, index=False), unsafe_allow_html=True)
 
-        st.subheader("🕓 Recently Rated")
+        # Recently Rated
         recent = merged.sort_values("timestamp", ascending=False).head(5)
-        for _, row in recent.iterrows():
-            show_movie_row(row)
+        show_table(recent, "🕓 Recently Rated")
 
-        st.subheader("🌟 Top Rated")
+        # Top Rated
         top = merged[merged["rating"] >= 4].sort_values("rating", ascending=False).head(5)
-        for _, row in top.iterrows():
-            show_movie_row(row)
+        show_table(top, "🌟 Top Rated")
 
-        st.subheader("😞 Worst Rated")
+        # Worst Rated
         worst = merged[merged["rating"] <= 2].sort_values("rating").head(5)
-        for _, row in worst.iterrows():
-            show_movie_row(row)
+        show_table(worst, "😞 Worst Rated")