import subprocess,pathlib,os,json,datetime
root=pathlib.Path('/opt/lingniu-go-native/backups/mileage-all-20260915-18');root.mkdir(parents=True,exist_ok=True)
os.umask(0o077)
units=['lingniu-go-stat-writer.service','lingniu-go-stats-backfill.timer','lingniu-vehicle-open-stat.timer']
state={u:subprocess.call(['systemctl','is-active','--quiet',u])==0 for u in units}
assert subprocess.call(['systemctl','is-active','--quiet','lingniu-go-stats-backfill.service'])!=0,'Backfill running'
(root/'service-state.json').write_text(json.dumps(state))
report={'startedAt':datetime.datetime.now().isoformat(),'days':[],'release':str(pathlib.Path('/opt/lingniu-go-native/current').resolve())}
try:
 subprocess.check_call(['systemctl','stop']+units)
 subprocess.check_call(['python3','/tmp/mileage-all-backup-20260918.py'])
 subprocess.check_call(['gzip','-t',str(root/'mileage-tables.sql.gz')])
 for day in ['2026-09-15','2026-09-16','2026-09-17','2026-09-18']:
  env=dict(os.environ)
  env.update(BACKFILL_DATE_FROM=day,BACKFILL_DATE_TO=day,BACKFILL_PROTOCOLS='GB32960,JT808,YUTONG_MQTT',BACKFILL_VINS='',BACKFILL_METHOD='last_diff',BACKFILL_DRY_RUN='false',BACKFILL_RESET='false',BACKFILL_LIMIT='0',BACKFILL_GPS_FALLBACK='true',BACKFILL_BASELINE_LOOKBACK_DAYS='7')
  print('START '+day,flush=True)
  log=root/(day+'.log')
  with log.open('w') as f:
   result=subprocess.run(['/opt/lingniu-go-native/current/stats-backfill'],env=env,stdout=f,stderr=subprocess.STDOUT,timeout=2700)
  assert result.returncode==0,'Failed '+day+', see '+str(log)
  report['days'].append(day);(root/'progress.json').write_text(json.dumps(report))
  print('DONE '+day,flush=True)
 report['complete']=True
finally:
 for unit,active in state.items():
  if active:subprocess.check_call(['systemctl','start',unit])
 report['finishedAt']=datetime.datetime.now().isoformat()
 (root/'result.json').write_text(json.dumps(report,indent=2))
 print(json.dumps(report),flush=True)