import streamlit as st
import chess
import chess.engine
import random

def init_board():
    board = chess.Board()
    return board

def make_move(board, move):
    try:
        board.push_san(move)
    except ValueError:
        st.error("Invalid move. Please try again.")
 
def computer_move(board, difficulty):
    # Use simple AI (random move) or implement basic engine here
    legal_moves = list(board.legal_moves)
    move = random.choice(legal_moves)  # Random move as a simple AI example
    board.push(move)

def render_chessboard():
    # Render Chessboard Placeholder
    st.text("Render 3D Chessboard Here")

def main():
    st.title('3D Chess Game')

    difficulty = st.slider("Select Difficulty (in seconds per move)", min_value=1, max_value=10, value=3)
    game_mode = st.radio("Select Game Mode", ['Play with Computer', 'Two Player'])

    board = init_board()
    st.write("Current Board:")
    st.text(board)

    while not board.is_game_over():
        if game_mode == 'Play with Computer':
            player_move = st.text_input("Your move (e.g., e2e4): ")
            if player_move:
                make_move(board, player_move)
                st.write(f"Player Move: {player_move}")
                render_chessboard()
                
                if board.is_game_over():
                    break
                
                computer_move(board, difficulty)
                st.write(f"Computer Move: {board.peek()}")
                render_chessboard()
        else:
            player_move = st.text_input("Player 1 Move (e.g., e2e4): ")
            if player_move:
                make_move(board, player_move)
                st.write(f"Player 1 Move: {player_move}")
                render_chessboard()
                
                if board.is_game_over():
                    break

                player_move = st.text_input("Player 2 Move (e.g., e7e5): ")
                if player_move:
                    make_move(board, player_move)
                    st.write(f"Player 2 Move: {player_move}")
                    render_chessboard()

    st.write("Game Over!")

if __name__ == "__main__":
    main()