Update app.py

app.py

@@ -1,6 +1,168 @@
 import streamlit as st 
 
+import time
+from datetime import datetime
 
+# Set page config
+st.set_page_config(page_title="Sidebar Status Indicator", layout="wide")
+
+# Initialize session state
+if 'process_running' not in st.session_state:
+    st.session_state.process_running = False
+if 'last_update' not in st.session_state:
+    st.session_state.last_update = datetime.now().strftime("%H:%M:%S")
+if 'process_name' not in st.session_state:
+    st.session_state.process_name = ""
+
+# Functions to handle process state
+def start_process(name):
+    st.session_state.process_running = True
+    st.session_state.process_name = name
+    st.session_state.last_update = datetime.now().strftime("%H:%M:%S")
+    
+def stop_process():
+    st.session_state.process_running = False
+    st.session_state.last_update = datetime.now().strftime("%H:%M:%S")
+
+# Function to run a simulated process
+def run_process(name, duration=3):
+    start_process(name)
+    
+    # Create a progress bar in the main area
+    progress_text = f"Running {name}..."
+    progress_bar = st.progress(0)
+    
+    # Simulate work
+    for percent_complete in range(100):
+        time.sleep(duration/100)
+        progress_bar.progress(percent_complete + 1, text=progress_text)
+    
+    # Mark process as complete
+    stop_process()
+    st.success(f"{name} completed!")
+    
+    # This will trigger a rerun to update the sidebar
+    st.experimental_rerun()
+
+# Configure the sidebar with our status widget
+with st.sidebar:
+    st.title("App Status")
+    
+    # Status indicator
+    status_container = st.container()
+    with status_container:
+        # Style based on current status
+        if st.session_state.process_running:
+            st.warning(f"⚙️ RUNNING: {st.session_state.process_name}")
+        else:
+            st.success("✅ IDLE")
+        
+        # Last update time
+        st.caption(f"Last update: {st.session_state.last_update}")
+        
+        # Stop button (only show when process is running)
+        if st.session_state.process_running:
+            if st.button("⏹️ Stop Process"):
+                stop_process()
+                st.experimental_rerun()
+    
+    # Add a separator
+    st.markdown("---")
+    
+    # Navigation options
+    st.subheader("Navigation")
+    nav_selection = st.radio("Go to:", ["Home", "Section 1", "Section 2", "Section 3"])
+    
+    # Additional sidebar content
+    st.markdown("---")
+    st.markdown("### App Info")
+    st.info("This app demonstrates using the sidebar for a persistent status indicator.")
+
+# Main content area based on navigation
+st.title("App with Sidebar Status")
+
+# Display content based on navigation selection
+if nav_selection == "Home":
+    st.header("Home")
+    st.write("Welcome to the application. Use the sidebar to navigate and view the current status.")
+    
+    # Add a simple process trigger
+    if st.button("Run Quick Process"):
+        run_process("Quick Process", 2)
+    
+    # Add sample content
+    st.markdown("### Sample Content")
+    st.write("Scroll down to see more content while the sidebar remains fixed.")
+    
+    for i in range(15):
+        st.write(f"Content line {i}")
+
+elif nav_selection == "Section 1":
+    st.header("Section 1")
+    st.write("This is Section 1 of the application.")
+    
+    col1, col2 = st.columns(2)
+    with col1:
+        if st.button("Run Process A"):
+            run_process("Process A", 3)
+    
+    with col2:
+        if st.button("Run Process B"):
+            run_process("Process B", 4)
+    
+    # Add sample content
+    for i in range(15):
+        st.write(f"Section 1 content line {i}")
+
+elif nav_selection == "Section 2":
+    st.header("Section 2")
+    st.write("This is Section 2 of the application.")
+    
+    # Add a more complex process trigger
+    process_type = st.selectbox("Select Process Type", ["Data Analysis", "Model Training", "Report Generation"])
+    
+    if st.button("Start Selected Process"):
+        run_process(process_type, 5)
+    
+    # Add sample content
+    for i in range(15):
+        st.write(f"Section 2 content line {i}")
+
+elif nav_selection == "Section 3":
+    st.header("Section 3")
+    st.write("This is Section 3 of the application.")
+    
+    # Add tabs within the section
+    tab1, tab2 = st.tabs(["Tab A", "Tab B"])
+    
+    with tab1:
+        st.subheader("Tab A Content")
+        if st.button("Run Tab A Process"):
+            run_process("Tab A Process", 3)
+        
+        for i in range(10):
+            st.write(f"Tab A content line {i}")
+    
+    with tab2:
+        st.subheader("Tab B Content")
+        if st.button("Run Tab B Process"):
+            run_process("Tab B Process", 4)
+        
+        for i in range(10):
+            st.write(f"Tab B content line {i}")
+
+# Add additional content to ensure scrollability
+st.markdown("---")
+st.subheader("Additional Information")
+st.write("This section demonstrates that the sidebar status indicator remains visible while scrolling.")
+
+for i in range(10):
+    st.write(f"Additional information line {i}")
+
+# Add a back-to-top button at the bottom
+if st.button("Back to Top"):
+    # This doesn't actually scroll to top, but it does refresh the page
+    pass
 
 # --- SHARED ON ALL PAGES ---
 st.logo(image="images/menu_book_60dp_75FBFD.png")