Update app.py

app.py

@@ -1,7 +1,7 @@
 import streamlit as st
 import os
 
-def list_files(file_path):
+def list_files(file_path=''):
     icon_csv = "📄 "
     icon_txt = "📑 "
     
@@ -12,10 +12,8 @@ def list_files(file_path):
             file_list.append(icon_csv + filename)
         elif filename.endswith(".txt"):
             file_list.append(icon_txt + filename)
-    if file_list:
-        return "\n".join(file_list)
-    else:
-        return "No .csv or .txt files found in the current directory."
+    file_list.sort(reverse=True)
+    return file_list
 
 def read_file(file_path):
     try:
@@ -63,9 +61,15 @@ saveFile = col3.button("💾 Save File")
 deleteFile = col4.button("🗑️ Delete File")
 appendFile = col5.button("➕ Append File")
 
-if listFiles:
-    fileContent = list_files(fileName)
+files_list_sidebar = st.sidebar.selectbox("Files", options=list_files(), key="file_list")
+if files_list_sidebar:
+    fileContent = read_file(files_list_sidebar[2:])
     st.text_area("File Content", fileContent)
+
+if listFiles:
+    file_list = list_files(fileName)
+    st.text_area("File Content", "\n".join(file_list))
+    st.sidebar.selectbox("Files", options=file_list, key="file_list_updated")
 elif readFile:
     fileContent = read_file(fileName)
     st.text_area("File Content", fileContent)
@@ -91,5 +95,4 @@ The new 🤖 AI Feedback Memory System for Smart Communities 🏡🧠🚀
 is here to help you remember important details about the people and places in your community. 
 Input information and the system will use advanced algorithms 💭📈 to help you remember key details. Plus, it's fun! 🤣📝🌞.
 
-Available now 📱💻🔜. Get ready to remember and enjoy! 👋😄🌇
-""")
+Available now for all smart devices 📱💻🔜. Get ready to remember and laugh all at once