import sys, glob, json, os

# Find config.json under /routlin_location
config_path = None
for candidate in [
    '/routlin_location/config.json',
    '/routlin_location/configs/config.json',
]:
    if os.path.exists(candidate):
        config_path = candidate
        break

if not config_path:
    matches = glob.glob('/routlin_location/**/config.json', recursive=True)
    config_path = matches[0] if matches else None

if not config_path:
    print('ERROR: could not find config.json under /routlin_location')
    sys.exit(1)

print(f'Using config: {config_path}')
cfg = json.load(open(config_path))
res = {r['mac'].lower(): r['hostname'] for r in cfg.get('dhcp_reservations', []) if r.get('mac') and r.get('hostname')}
print(f'{len(res)} reservations in mac_to_res')

for f in sorted(glob.glob('/var/lib/misc/dnsmasq-routlin-*.leases')):
    print(f'\n--- {f} ---')
    for line in open(f):
        p = line.strip().split()
        if len(p) >= 4:
            mac = p[1].lower()
            device_h = p[3] if p[3] != '*' else '(none)'
            res_h = res.get(mac, '(no reservation)')
            print(f'  mac={mac}  device_h={device_h}  res_h={res_h}')

try:
    from mac_vendor_lookup import MacLookup
    ml = MacLookup()
    print('\n--- vendor lookup test ---')
    for mac in list(res.keys())[:5]:
        try:
            vendor = ml.lookup(mac)
        except Exception as e:
            vendor = f'(error: {e})'
        print(f'  {mac}  {vendor}')
except ImportError:
    print('\nmac-vendor-lookup not installed')