#!/bin/bash

## Script Location
SCRIPTDIR=$(dirname $0)
source "$SCRIPTDIR/common/colors.sh"
source "$SCRIPTDIR/common/functions.sh"
source "$SCRIPTDIR/common/load-defaults.sh"

printf "$COL_LIGHT_BLUE" "* Cleaning up old snaps"

if is_command "snap";
then
  prespace=$(get_system_used_space)
  prespacewords=$(human_readable_bytes "$prespace")
  printf "$COL_LIGHT_BLUE" "* Current used space is $prespacewords"

  set -eu
  LANG=en_US.UTF-8 snap list --all | awk '/disabled/{print $1, $3}' |
      while read snapname revision; do
          snap remove "$snapname" --revision="$revision"
      done
  snap set system refresh.retain=2

  postspace=$(get_system_used_space)
  postspacewords=$(human_readable_bytes "$prespace")
  printf "$COL_LIGHT_BLUE" "* Current used space is now $postspacewords"

  spacesavedbytes=`expr $postspace - $prespace`
  spacesavedwords=$(human_readable_bytes "$spacesavedbytes")
  printf "$COL_LIGHT_BLUE" "* Cleanup saved $spacesavedwords"
else
  printf "$COL_LIGHT_BLUE" "* Snap is not enabled on this system"
fi