#!/usr/bin/env sh

USER=$(head -n 1 "${HOME}/.env")
AUTHPASS=$(tail -n 1 "${HOME}/.env")
UPTIMEINFO="/tmp/uptime.txt"
TICKS=$(snmp get -l authPriv -u "$USER" -A "$AUTHPASS" -X "$AUTHPASS" -a SHA-256 localhost hrSystemUptime.0 | cut -d"(" -f2 | cut -d")" -f1)
DAYS=$(echo "${TICKS}/8640000" | bc -l)
HOURS=$(echo "0.${DAYS##*.} * 24" | bc -l)
MINUTES=$(echo "0.${HOURS##*.} * 60" | bc -l)
SECS=$(echo "0.${MINUTES##*.} * 60" | bc -l)
test -n "$DAYS" && printf '%s days, ' "${DAYS%.*}" > ${UPTIMEINFO}
printf '%02d\\:%02d\\:%02d\n' "${HOURS%.*}" "${MINUTES%.*}" "${SECS%.*}" >> ${UPTIMEINFO}