Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,40 +1,83 @@
-import altair as alt
-import numpy as np
-import pandas as pd
 import streamlit as st
+import chess
+import chess.svg
 
-"""
-# Welcome to Streamlit!
-
-Edit `/streamlit_app.py` to customize this app to your heart's desire :heart:.
-If you have any questions, checkout our [documentation](https://docs.streamlit.io) and [community
-forums](https://discuss.streamlit.io).
-
-In the meantime, below is an example of what you can do with just a few lines of code:
-"""
-
-num_points = st.slider("Number of points in spiral", 1, 10000, 1100)
-num_turns = st.slider("Number of turns in spiral", 1, 300, 31)
-
-indices = np.linspace(0, 1, num_points)
-theta = 2 * np.pi * num_turns * indices
-radius = indices
-
-x = radius * np.cos(theta)
-y = radius * np.sin(theta)
-
-df = pd.DataFrame({
-    "x": x,
-    "y": y,
-    "idx": indices,
-    "rand": np.random.randn(num_points),
-})
-
-st.altair_chart(alt.Chart(df, height=700, width=700)
-    .mark_point(filled=True)
-    .encode(
-        x=alt.X("x", axis=None),
-        y=alt.Y("y", axis=None),
-        color=alt.Color("idx", legend=None, scale=alt.Scale()),
-        size=alt.Size("rand", legend=None, scale=alt.Scale(range=[1, 150])),
-    ))
+st.set_page_config(page_title="♟️ Chess Game", layout="centered")
+
+st.title("♟️ Chess Game (Streamlit)")
+
+# Initialize session state
+if "board" not in st.session_state:
+    st.session_state.board = chess.Board()
+    st.session_state.move_history = []
+
+board = st.session_state.board
+
+# Display board
+st.subheader("Board")
+board_svg = chess.svg.board(board=board, size=500)
+st.image(board_svg)
+
+# Show turn
+st.info(f"Turn: {'White' if board.turn else 'Black'}")
+
+# Move input
+st.subheader("Make a Move")
+
+col1, col2 = st.columns(2)
+
+squares = [chess.square_name(sq) for sq in chess.SQUARES]
+
+with col1:
+    from_sq = st.selectbox("From", squares, key="from")
+
+with col2:
+    to_sq = st.selectbox("To", squares, key="to")
+
+# Make move
+if st.button("♟️ Move"):
+    try:
+        move = chess.Move.from_uci(from_sq + to_sq)
+
+        if move in board.legal_moves:
+            board.push(move)
+            st.session_state.move_history.append(move.uci())
+            st.success(f"Move: {from_sq} → {to_sq}")
+        else:
+            st.error("Illegal move!")
+
+    except:
+        st.error("Invalid move format!")
+
+# Undo move
+if st.button("↩️ Undo Last Move"):
+    if board.move_stack:
+        board.pop()
+        st.session_state.move_history.pop()
+        st.warning("Last move undone")
+
+# Restart game
+if st.button("🔄 Restart Game"):
+    st.session_state.board = chess.Board()
+    st.session_state.move_history = []
+    st.success("Game restarted!")
+
+# Move history
+st.subheader("📜 Move History")
+if st.session_state.move_history:
+    for i, move in enumerate(st.session_state.move_history, 1):
+        st.write(f"{i}. {move}")
+else:
+    st.write("No moves yet")
+
+# Game status
+st.subheader("Game Status")
+
+if board.is_checkmate():
+    st.error("♟️ Checkmate!")
+elif board.is_stalemate():
+    st.warning("Stalemate!")
+elif board.is_check():
+    st.warning("Check!")
+else:
+    st.success("Game in progress...")