Update app.py

app.py

@@ -10,7 +10,7 @@ from docx import Document
 from io import BytesIO
 import dash
 import dash_bootstrap_components as dbc
-from dash import html, dcc, Input, Output, State, ctx, dash_table
+from dash import html, dcc, Input, Output, State, ctx, dash_table, callback_context
 import google.generativeai as genai
 from docx import Document
 from docx.shared import Pt
@@ -631,21 +631,28 @@ def download_g_review(n_clicks, g_review_output):
 @app.callback(
     Output('loe-output', 'children'),
     Input('generate-loe', 'n_clicks'),
-    State('upload-loe', 'contents'),
+    Input('upload-loe', 'contents'),
     State('upload-loe', 'filename'),
-    State('shred-output', 'children')
+    State('shred-output', 'children'),
+    prevent_initial_call=True
 )
 def update_loe_output(n_clicks, upload_contents, upload_filename, shred_output):
-    if n_clicks is None:
+    ctx = callback_context
+    triggered_id = ctx.triggered[0]['prop_id'].split('.')[0]
+
+    if not ctx.triggered:
         return "Click 'Generate LOE' to begin."
     
     try:
-        if upload_contents:
-            loe_text, loe_df = generate_loe(upload_contents, is_file=True, filename=upload_filename)
-        elif shred_output:
-            loe_text, loe_df = generate_loe(shred_output)
+        if triggered_id == 'generate-loe':
+            if upload_contents:
+                loe_text, loe_df = generate_loe(upload_contents, is_file=True, filename=upload_filename)
+            elif shred_output:
+                loe_text, loe_df = generate_loe(shred_output)
+            else:
+                return "Please upload a document or complete the Shred tab first."
         else:
-            return "Please upload a document or complete the Shred tab first."
+            return "Click 'Generate LOE' to begin."
         
         if isinstance(loe_text, str) and loe_text.startswith(("Unsupported file format", "Error processing document", "The document appears to be empty")):
             return loe_text