#!/bin/bash
# Usage: sequencelogic-fs-usage.sh [dir]

DIR=$1
if [ "$DIR" = "" ]; then
    DIR=/sequencelogic
fi

if [ -d "${DIR}" ]; then
	READONLY=false
	CHKDIR=$DIR
	if [ "${DIR}" = "/" ]; then
		CHKDIR=/tmp
	fi
	touch "${CHKDIR}/.touchable" 2>/dev/null
	if [ $? != 0 ]; then
		READONLY=true
	fi
	CHECKED=`date +"%Y-%m-%dT%H:%M:%S"`
	/bin/echo -n ${CHECKED} 2>/dev/null > "${CHKDIR}/.checked"
	VERIFIED=$(<"${CHKDIR}/.checked")

	if [ "${PLATFORM}" = lin64 -o `uname` = Linux ]; then
		df=`df -BG -P ${DIR} | tail -1 | awk -v dir=${DIR} -v readonly=${READONLY} -v checked="${CHECKED}" -v verified="${VERIFIED}" '{pct=$5; used=$3; sub(/%/,"",pct); printf "[{\"status\":\"OK\",\"host\":\"%s\",\"used\":\"%ldGB\",\"fs_used_pct\":%d,\"device\":\"%s\",\"readonly\":%s,\"checked\":\"%s\",\"verified\":\"%s\"}]\n", dir, used, pct, $1, readonly, checked, verified}'`
	else
		df=`df -g ${DIR} | tail -1 | awk -v dir=${DIR} -v readonly=${READONLY} -v checked="${CHECKED}" -v verified="${VERIFIED}" '{pct=$5; used=$3; sub(/%/,"",pct); printf "[{\"status\":\"OK\", \"host\":\"%s\",\"used\":\"%ldGB\",\"fs_used_pct\":%d,\"device\":\"%s\",\"readonly\":%s,\"checked\":\"%s\",\"verified\":\"%s\"}]\n", dir, used, pct, $1, readonly, checked, verified}'`
	fi
else 
	df="{\"status\":\"ERROR\",\"error\":\"Directory not found\",\"host\":\"${DIR}\"}"
fi

sleep 1
echo $df

exit 0