update

bot/utils/mention.py

@@ -0,0 +1,20 @@
+def escape_username(username):
+    # Replace any non-ASCII and non-alphanumeric characters with underscores
+    return ''.join(c if c.isalnum() or c.isspace() else '-' for c in username)
+
+# generates a mention from standard telegram web json 'from' field
+# using HTML markup
+def mention(user):
+    uid, identity, username = userdata_extract(user)
+    identity = escape_username(identity)
+    return f'<a href="tg://user?id={uid}">{identity} {username}</a>'
+
+
+def userdata_extract(user):
+    identity = f"{user['first_name']} {user.get('last_name', '')}".strip()
+    uid = user['id']
+    username = user.get('username', '')
+    if username:
+        username = f'(@{username})'
+    return uid, identity, username
+