utils.py

import streamlit as st
import uuid, io, sys

def get_user_id():
    if "user_id" not in st.session_state:
        query_params = st.query_params
        user_id = query_params.get("user_id", None)
        if not user_id:
            user_id = str(uuid.uuid4())
            st.query_params["user_id"] = user_id
        st.session_state.user_id = user_id
    return st.session_state.user_id

class StdoutRedirector(io.StringIO):
    def __init__(self, log_area, max_lines=20):
        super().__init__()
        self.log_area = log_area
        self.logs = []
        self.max_lines = max_lines

    def write(self, message):
        if message.strip():
            self.logs.append(message.strip())
            if len(self.logs) > self.max_lines:
                self.logs.pop(0)
            self.log_area.markdown(
                f"<div class='log-window'>{'<br>'.join(self.logs)}</div>", 
                unsafe_allow_html=True
            )

def render_log_window():
	st.markdown("""
		<style>
		.log-window {
			height: 150px;
			overflow-y: auto;
			font-family: monospace;
			background-color: var(--background-color);
			color: var(--text-color);
			padding: 10px;
			border-radius: 5px;
			border: 2px solid white;
		}
		</style>
	""", unsafe_allow_html=True)

	log_area = st.empty()
	stdout_redirector = StdoutRedirector(log_area)

	sys.stdout = stdout_redirector