#!/bin/bash

NODES_FILE="/slc/csd/adm/root/NODECHECK/nodeCheck.txt"
CMDS_FILE="/slc/csd/adm/root/NODECHECK/nodeCheck.txt"
HOSTNAME=`hostname`
CHECKS=`grep "${HOSTNAME}:" $NODES_FILE | grep -v "#" | awk -F: '{print $2}'`
CHECK_TYPE_BASE="#NodeCheck"
CHECK_TYPE_CMD='Cmd'
CHECK_TYPE_SCRIPT='Script'
TIMESTAMP=`date +%s`
OVERALL_RESULT="Pass"
FAILED_TESTS=""

function trim_whitespace {
	var=$1
	var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
	var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
	echo $var
}


if [ -z "$CHECKS" ]
then
	echo "Node $HOSTNAME not listed in $NODES_FILE"
	exit 1
fi

for CHECK in $CHECKS
do
	CHECK_NAME=`echo $CHECK | awk -F= '{print $1}'`
	CHECK_TYPE=`grep $CHECK_TYPE_BASE $CMDS_FILE | grep $CHECK_NAME | awk -F, '{print $1}'`
	CHECK_CMD=`grep $CHECK_TYPE_BASE $CMDS_FILE | grep $CHECK_NAME | awk -F, '{print $3}'`
	if [ $CHECK_TYPE = ${CHECK_TYPE_BASE}${CHECK_TYPE_CMD} ]
	then
		CHECK_VALUE=`eval echo $CHECK | awk -F= '{print $2}'`
		RAW_ACTUAL_VALUE=`eval $CHECK_CMD`
		ACTUAL_VALUE=`eval trim_whitespace "${RAW_ACTUAL_VALUE}"`
		if [ "$ACTUAL_VALUE" = "$CHECK_VALUE" ]
		then
			RESULT="Pass"
		else
			RESULT="Fail"
			OVERALL_RESULT="Fail"
			FAILED_TESTS="${FAILED_TESTS} $CHECK_NAME"
		fi
		echo "Check name:  $CHECK_NAME -> $RESULT"
        	echo "   Check type is:  Command"
        	echo "   Expected value is:  $CHECK_VALUE"
        	echo "   Check command is:  $CHECK_CMD"
        	echo "   Actual value is:  $ACTUAL_VALUE"	
	fi
	if [ $CHECK_TYPE = ${CHECK_TYPE_BASE}${CHECK_TYPE_SCRIPT} ]
	then
		CHECK_VALUE=`eval echo $CHECK | awk -F= '{print $2}'`
		ACTUAL_VALUE=`$CHECK_CMD`
		if [ "$ACTUAL_VALUE" = "$CHECK_VALUE" ]
		then
                        RESULT="Pass"
                else
                        RESULT="Fail"
                        OVERALL_RESULT="Fail"
                        FAILED_TESTS="${FAILED_TESTS} $CHECK_NAME"
                fi
		echo "Check name:  $CHECK_NAME -> $RESULT"
		echo "   Check type is:  Script"
		echo "   Expected value is:  $CHECK_VALUE"
		echo "   Check script is:  $CHECK_CMD"
		echo "   Actual value is:  $ACTUAL_VALUE"
	fi
done

if [ $OVERALL_RESULT = "Pass" ]; then
	echo "Summary: (PASS) Node $HOSTNAME passed all tests"
else
	echo "ERROR Summary: (FAIL) Node $HOSTNAME failed tests: $FAILED_TESTS"
fi