from pathlib import Path
p=Path('/home/admin/.config/monchk/disk-alert.env')
s=p.read_text()
lines=s.splitlines()
existing={line.split('=',1)[0] for line in lines if '=' in line and not line.lstrip().startswith('#')}
adds=[]
for k,v in [
 ('BARK_SECONDARY_SERVER','https://api.day.app'),
 ('BARK_SECONDARY_KEY',''),
 ('BARK_SECONDARY_PROXY',''),
 ('BARK_SECONDARY_GROUP','monchk-disk-alert-secondary'),
]:
    if k not in existing:
        adds.append(f'{k}={v}')
if adds:
    p.write_text(s.rstrip()+'\n'+ '\n'.join(adds)+'\n')
print('added=' + ','.join(a.split('=',1)[0] for a in adds))