#--------------------------------------------------------------------------------------------------------------------------------
# Let's have unique way of displaying alerts
#--------------------------------------------------------------------------------------------------------------------------------
display_alert()
{
	# log function parameters to install.log
	[[ -n "${DEST}" ]] && echo "Displaying message: $@" >> "${DEST}"/${LOG_SUBPATH}/output.log

	local tmp=""
	[[ -n $2 ]] && tmp="[\e[0;33m $2 \x1B[0m]"

	case $3 in
		err)
		echo -e "[\e[0;31m error \x1B[0m] $1 $tmp"
		;;

		wrn)
		echo -e "[\e[0;35m warn \x1B[0m] $1 $tmp"
		;;

		ext)
		echo -e "[\e[0;32m o.k. \x1B[0m] \e[1;32m$1\x1B[0m $tmp"
		;;

		info)
		echo -e "[\e[0;32m o.k. \x1B[0m] $1 $tmp"
		;;

		*)
		echo -e "[\e[0;32m .... \x1B[0m] $1 $tmp"
		;;
	esac
}

# is a formatted output of the values of variables
# from the list at the place of the function call.
#
# The LOG_OUTPUT_FILE variable must be defined in the calling function
# before calling the `show_checklist_variables` function and unset after.
#
show_checklist_variables ()
{
	local checklist=$*
	local var pval
	local log_file=${LOG_OUTPUT_FILE:-"${SRC}"/output/${LOG_SUBPATH}/trash.log}
	local _line=${BASH_LINENO[0]}
	local _function=${FUNCNAME[1]}
	local _file=$(basename "${BASH_SOURCE[1]}")

	echo -e "Show variables in function: $_function" "[$_file:$_line]\n" >>$log_file

	for var in $checklist;do
		eval pval=\$$var
		echo -e "\n$var =:" >>$log_file
		if [ $(echo "$pval" | awk -F"/" '{print NF}') -ge 4 ];then
			printf "%s\n" $pval >>$log_file
		else
			printf "%-30s %-30s %-30s %-30s\n" $pval >>$log_file
		fi
	done
}