#!/bin/bash

#
# Restart Kurento every 24+ hours
#

if [ ! -f /var/tmp/bbb-kms-last-restart.txt ]; then
  date +%Y-%m-%d\ %H:%M:%S > /var/tmp/bbb-kms-last-restart.txt
  exit
fi

# Read in RESTART_OPTS
if [ -f /etc/default/bbb-restart-kms ]; then
  source /etc/default/bbb-restart-kms
fi

users=$(mongo --quiet mongodb://127.0.1.1:27017/meteor --eval "db.users.count()")

if [ "$users" -eq 0 ]; then

  # Make sure 24 hours have passed since last restart

  # Seconds since epoch for last restart
  dt1=$(cat /var/tmp/bbb-kms-last-restart.txt)
  t1=`date --date="$dt1" +%s`

  # Current seconds since epoch
  dt2=`date +%Y-%m-%d\ %H:%M:%S`
  t2=`date --date="$dt2" +%s`

  # Hours since last restart
  let "tDiff=$t2-$t1"
  let "hDiff=$tDiff/3600"

  if [ "$hDiff" -ge 24 ]; then
    systemctl restart kurento-media-server bbb-webrtc-sfu $RESTART_OPTS
    date +%Y-%m-%d\ %H:%M:%S > /var/tmp/bbb-kms-last-restart.txt
  fi
fi