#!/bin/bash

# doalogwatch, part of logwatch-extra version #VERSION#

set -e

abWannNaechstesMal="$(date +%F)"
lmDatei="#CACHEDIR#/logwatch/letzteMeldung"
warteAufFile="#WAITDIR#/logwatch"

[ ! -r "${lmDatei}" ] && \
  echo '1970-01-01' > "${lmDatei}"

[ "${abWannNaechstesMal}" == "$(cat "${lmDatei}")" ] && \
  exit 0

if [ -r '#ETCDIR#/logwatch/conf/logwatch.conf' ]; then
  services=$(
    sed -n '
      s/^#\s*doalogwatch\s*#\s*Service\s*=\s*//
      T
      s/^\(["'"'"']\)\(.*\)\1$/\2/
      s/^/--service=/
      p
    ' '#ETCDIR#/logwatch/conf/logwatch.conf'
  )
fi

if [ -z "${services%%--service=-*}" ]; then
  services="--service=All ${services}"
fi

[ -r "${warteAufFile}" ] && \
  kill -0 $(cat "${warteAufFile}") 2>/dev/null && \
  exit 0

if [ -d "${warteAufFile%/*}" ]; then
  echo $$ > "${warteAufFile}"
fi

[ -r '#ETCDIR#/backup.conf' ] && \
  . '#ETCDIR#/backup.conf'

warten=true
while ${warten} && [ "$(date '+%H')" != '23' ]; do

  warten=false

  [ $(sed 's/[. ].*$//' /proc/uptime) -le 300 ] && \
    warten=true

  # check for currently running backups
  ppid=$(awk '$1 == "PPid:" {print $2}' /proc/$$/status)
  if [ ! "$(tr '\0' ' ' <"/proc/${ppid}/cmdline")" = '/bin/bash /usr/bin/shutdownasap -q ' ]; then
    pgrep -xf "(#BINDIR#/)?backup( .*)?" >/dev/null && \
      warten=true
    if [ -r '#ETCDIR#/backup.conf' ]; then
      for i in 1 2; do
        for id in "${!backups[@]}"; do
          [ -s "#TMPDIR#/${id}.pid" ] && \
            kill -0 $(cat "#TMPDIR#/${id}.pid") 2>/dev/null && \
            warten=true
        done
        sleep 1
      done
    fi
  fi

done

logwatch \
  --archives \
  --range "between $(cat "${lmDatei}") and yesterday" \
  ${services}

echo "${abWannNaechstesMal}" > "${lmDatei}"

rm -f ${warteAufFile}