#!/bin/sh
# .. vim: foldmarker=[[[,]]]:foldmethod=marker

# Vars [[[
debug="0"

## Colors [[[
c_redb='\033[1;31m'
c_magentab='\033[1;35m'
c_reset='\033[0m'
## ]]]
default_mtime_minutes="600"

drivedb_list="/tmp/test.css"

DDRIVEDB_MSG="green"
#DDRIVEDB_MSG="red"
DISK="/dev/sda"
# ]]]
## Create or empty a file if it's too old [[[
regenerate_if_too_old() {
	## Set variables according to the number of passed arguments
	case $# in
		1 )
			_file="${1}"
			[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG : regenerate_if_too_old func − Use default_mtime_minutes value: ${default_mtime_minutes}."
			_max_mtime_minutes="${default_mtime_minutes}"
			;;
		2 )
			_file="${1}"
			_max_mtime_minutes="${2}"
			;;
	esac

	_current_timestamp=$(date "+%s")
	_file_mtime_timestamp=$(stat --format="%Y" -- "${_file}")

	## Substract last modification timestamp of the file to current timestamp
	: $(( _file_mtime_seconds=_current_timestamp-_file_mtime_timestamp ))
	## Get maximum allowed mtime in seconds
	: $(( _max_mtime_seconds=_max_mtime_minutes*60 ))

	## Compare last modification mtime with the maximum allowed
	if [ "${_file_mtime_seconds}" -gt "${_max_mtime_seconds}" ]; then
		[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG : regenerate_if_too_old func − Need to empty or create ${_file} last modification happened ${_file_mtime_seconds} seconds ago (maximum is ${_max_mtime_seconds})."
		true > "${_file}"
	else
		[ "${debug}" -eq "0" ] && printf "${c_magentab}%-6b${c_reset}\n" "DEBUG : regenerate_if_too_old func − Don't need to empty ${_file} last modification happened ${_file_mtime_seconds} seconds ago (maximum is ${_max_mtime_seconds})."
	fi

}
## ]]]

regenerate_if_too_old /tmp/css_style.css
regenerate_if_too_old /tmp/font.css 60
regenerate_if_too_old /tmp/user/1337/serverauth.qGdeK8OOzr 1440
regenerate_if_too_old /tmp/test.css 600

if printf -- '%s' "${DDRIVEDB_MSG}" | grep -q -E -- "green" &&
   ! grep -q -- "${DISK}" "${drivedb_list}"
then
	echo "${DISK}" >> "${drivedb_list}"
				fi


exit 0