#
# @synopsis: dhclient-summary
# @description: Generate a summary of DHCP addresses bound in this log
#

:echo DHCP leases over time:
:echo
;SELECT ip AS IP, start_time AS "Start Time",
        printf("% 24s", CASE
          WHEN end_time IS NULL THEN printf("%s%s%s", $ansi_green, 'Active', $ansi_norm)
          ELSE
          printf("%s%.02f%s hours", $ansi_bold, (julianday(end_time) - julianday(start_time)) * 24, $ansi_norm)
        END) AS Duration
  FROM
  (WITH lease_times AS
    (SELECT min(log_time) AS start_time, ip FROM
      (SELECT log_time, regexp_match('bound to (\S+) --', log_text) AS ip FROM syslog_log WHERE ip IS NOT NULL)
     GROUP BY ip ORDER BY start_time ASC)
    SELECT start_time,
           (SELECT lt2.start_time AS end_time FROM lease_times AS lt2 WHERE lt1.start_time < lt2.start_time LIMIT 1) AS end_time,
           ip
      FROM lease_times AS lt1)
:write-table-to -