#
# Common variables
#

# Package dependencies
PKG_DEPENDENCIES="php5-cli php5-mysql php5-json php5-gd php5-tidy php5-curl php-gettext php5-redis"

# Execute a command as another user
# usage: exec_as USER COMMAND [ARG ...]
exec_as() {
  local USER=$1
  shift 1

  if [[ $USER = $(whoami) ]]; then
    eval $@
  else
    # use twice to be root and be allowed to use another user
    sudo -u "$USER" "$@"
  fi
}

# Execute a command through the wallabag console
# usage: exec_console AS_USER WORKDIR COMMAND [ARG ...]
exec_console() {
  local AS_USER=$1
  local WORKDIR=$2
  shift 2
  exec_as "$AS_USER" php "$WORKDIR/bin/console" --no-interaction --env=prod "$@"
}

WARNING () {	# Print on error output
	$@ >&2
}

QUIET () {	# redirect standard output to /dev/null
	$@ > /dev/null
}

CHECK_SIZE () {	# Check if enough disk space available on backup storage
	file_to_analyse=$1
	backup_size=$(du --summarize "$file_to_analyse" | cut -f1)
	free_space=$(df --output=avail "/home/yunohost.backup" | sed 1d)

	if [ $free_space -le $backup_size ]
	then
		WARNING echo "Not enough backup disk space for: $file_to_analyse."
		WARNING echo "Space available: $(HUMAN_SIZE $free_space)"
		ynh_die "Space needed: $(HUMAN_SIZE $backup_size)"
	fi
}


# ============= FUTURE YUNOHOST HELPER =============
# Delete a file checksum from the app settings
#
# $app should be defined when calling this helper
#
# usage: ynh_remove_file_checksum file
# | arg: file - The file for which the checksum will be deleted
ynh_delete_file_checksum () {
	local checksum_setting_name=checksum_${1//[\/ ]/_}	# Replace all '/' and ' ' by '_'
	ynh_app_setting_delete $app $checksum_setting_name
}