Updated start

start.py

@@ -1,5 +1,5 @@
 import streamlit as st
-from utils import request
+from utils import nav_page
 
 # Title
 st.title("Caesar Cipher")
@@ -8,33 +8,10 @@
 
 st.markdown("### A multiple algorithm encryption and decryption tool")
 
+text = st.button("Text Encryption and Decryption")
+file = st.button("File Encryption and Decryption")
 
-text = st.text_area("Enter text to encrypt or decrypt", height=200)
-
-algorithm = st.selectbox("Select algorithm", ("Caesar", "CRot13", "Rot13", "Atbash"))
-
-if algorithm == "Caesar":
-    shift = st.number_input("Enter shift value", min_value=1, value=3)
-    action = st.radio("Action", ("Encrypt", "Decrypt"))
-    action = action.lower()
-    if st.button("Submit"):
-        st.markdown("### Output")
-        st.write(request('caesar', text, shift, action))
-
-if algorithm == "CRot13":
-    shift = st.number_input("Enter shift value", min_value=1, value=3)
-    action = st.radio("Action", ("Encrypt", "Decrypt"))
-    action = action.lower()
-    if st.button("Submit"):
-        st.markdown("### Output")
-        st.write(request('crot13', text, shift, action))
-
-if algorithm == "Rot13":
-    if st.button("Submit"):
-        st.markdown("### Output")
-        st.write(request('rot13', text))
-
-if algorithm == "Atbash":
-    if st.button("Submit"):
-        st.markdown("### Output")
-        st.write(request('atbash', text))
+if text:
+    nav_page("text")
+if file:
+    nav_page("file")