app.py

import streamlit as st
import time # Import time for simulating a running task

# --- Custom CSS for Sticky Header ---
st.markdown("""
<style>
    /* Make the custom header container sticky */
    .sticky-header {
        position: sticky;
        top: 0;
        background-color: white; /* Or your preferred header background color */
        padding: 10px 0; /* Adjust padding as needed */
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* Optional: Add a subtle shadow */
        z-index: 999; /* Ensure the header stays on top */
    }

    /* Style for the status indicator */
    .status-indicator {
        margin-left: 20px; /* Adjust spacing */
        font-weight: bold;
    }

    .status-running {
        color: orange;
    }

    .status-complete {
        color: green;
    }

    .status-error {
        color: red;
    }
</style>
""", unsafe_allow_html=True)

# --- Sticky Header Content ---
# Use a container for the sticky header
header_container = st.container()

with header_container:
    col1, col2 = st.columns([1, 5]) # Adjust column ratios as needed
    with col1:
        st.logo(image="images/menu_book_60dp_75FBFD.png")
    with col2:
        st.title("Map descriptions to SBS codes") # Your app title
        # Placeholder for the status indicator
        status_placeholder = st.empty()

# Add spacing below the sticky header to prevent content from being hidden
st.markdown("""<div style="height: 120px;"></div>""", unsafe_allow_html=True) # Adjust height based on your header size

# --- Main App Content ---
st.sidebar.header("SBS V2.0 mapper")
st.sidebar.write("(work in progress)")
st.sidebar.text("Demo by JA-RAD")

st.subheader("Select specific Chapter for quicker results")


# --- Application Logic (Example with Status Update) ---

# Function to simulate a long-running task
def run_mapping_process():
    status_placeholder.markdown('<span class="status-indicator status-running">Running...</span>', unsafe_allow_html=True)
    # Simulate work
    time.sleep(3)
    # Update status on completion
    status_placeholder.markdown('<span class="status-indicator status-complete">Complete</span>', unsafe_allow_html=True)

# Example of triggering the process (you would integrate this with your actual logic)
if st.button("Start Mapping"):
    run_mapping_process()

# --- Navigation (Keep your existing navigation setup) ---
type_text_page = st.Page(
    page="pages/type_text.py",
    title="DEMO (work in progress)",
    icon=":material/keyboard:",
    default=True,
)

# --- NAVIGATION SETUP ---
pg = st.navigation(pages=[type_text_page]) # WITHOUT SECTIONS
pg.run()