#!/bin/bash
expireTime=1200
systems="\
  earth\
  mars\
  defaria.com\
"

function notify {
  #zenity --notification --text "$1" 2> /dev/null
  notify-send --expire-time=$expireTime "$1"
  echo $1
}

function yesno {
  question=$1

  zenity --question --text "$question" --width=300 2> /dev/null
}
    
update=$1;

for system in $systems; do
  notify "Checking $system for updates"
  ssh $system sudo apt-get -qq update
  ssh $system apt list --upgradeable 2> /dev/null | grep -v "^Listing" > /tmp/check4update.list

  if [ $(wc -l /tmp/check4update.list 2> /dev/null | cut -f1 -d' ') -ne 0 ]; then
    cat /tmp/check4update.list

    if yesno "There are updates for $system\nApply them now?" ]; then
      ssh $system sudo /opt/clearscm/bin/update-system
    else
      notify "$system not updated"
    fi
  else
    notify "$system is up to date"
  fi

  rm -f /tmp/check4update.list
done