fix logic

changedetectionio/flask_app.py

@@ -124,10 +124,10 @@ def _jinja2_filter_datetime(watch_obj, format="%Y-%m-%d %H:%M:%S"):
 
 @app.template_filter('format_timestamp_timeago')
 def _jinja2_filter_datetimestamp(timestamp, format="%Y-%m-%d %H:%M:%S"):
-    if timestamp == False:
+    if not timestamp:
         return 'Not yet'
 
-    return timeago.format(timestamp, time.time())
+    return timeago.format(int(timestamp), time.time())
 
 
 @app.template_filter('pagination_slice')

changedetectionio/static/js/preview.js

@@ -40,9 +40,13 @@ if (selectElement) {
     if (selectedOption) {
         if (selectedOption.previousElementSibling) {
             document.getElementById('btn-previous').href = "?version=" + selectedOption.previousElementSibling.value;
+        } else {
+            document.getElementById('btn-previous').remove()
         }
         if (selectedOption.nextElementSibling) {
             document.getElementById('btn-next').href = "?version=" + selectedOption.nextElementSibling.value;
+        } else {
+            document.getElementById('btn-next').remove()
         }
 
     }

changedetectionio/templates/preview.html

@@ -66,7 +66,7 @@
         </div>
 
         <div class="tab-pane-inner" id="text">
-            <div class="snapshot-age">{{ watch.snapshot_text_ctime|format_timestamp_timeago }}</div>
+            <div class="snapshot-age">{{ current_version|format_timestamp_timeago }}</div>
             <span class="ignored">Grey lines are ignored</span> <span class="triggered">Blue lines are triggers</span>
             <span class="tip"><strong>Pro-tip</strong>: Highlight text to add to ignore filters</span>