#!/usr/bin/env bash
# Use NET-SNMP-EXAMPLES-MIB
# with OID: .iso.org.dod.internet.private.enterprises.netSnmp.netSnmpExamples (.1.3.6.1.4.1.8072.2)

# Magic line must be first in script (see README.md)
s="$_" ; . ./lib.sh || if [ "$s" = $0 ]; then exit 0; else return 0; fi

APPNAME=snmp

if [ ${ENABLE_NETSNMP} != "yes" ]; then
    echo "Skipping test, Net-SNMP support not enabled."
    if [ "$s" = $0 ]; then exit 0; else return 0; fi
fi

snmpd=$(type -p snmpd)
snmpget="$(type -p snmpget) -On -c public -v2c localhost:161 "
snmpset="$(type -p snmpset) -On -c public -v2c localhost:161 "
snmptable="$(type -p snmptable) -c public -v2c localhost:161 "

cfg=$dir/conf_startup.xml
fyang=$dir/clixon-example.yang

# AgentX unix socket
SOCK=/var/run/snmp.sock

# OID
# .netSnmpExampleTables.netSnmpIETFWGTable
# NET-SNMP-EXAMPLES-MIB::netSnmpExamples
MIB=".1.3.6.1.4.1.8072.2"
OID="${MIB}.2.1"
OID_SET="${OID}.1.2.6.115.110.109.112.118.51"

cat <<EOF > $cfg
<clixon-config xmlns="http://clicon.org/config">
  <CLICON_CONFIGFILE>$cfg</CLICON_CONFIGFILE>
  <CLICON_YANG_DIR>${YANG_INSTALLDIR}</CLICON_YANG_DIR>
  <CLICON_YANG_DIR>${YANG_STANDARD_DIR}</CLICON_YANG_DIR>
  <CLICON_YANG_DIR>${MIB_GENERATED_YANG_DIR}</CLICON_YANG_DIR>
  <CLICON_YANG_MAIN_FILE>$fyang</CLICON_YANG_MAIN_FILE>
  <CLICON_SOCK>$dir/$APPNAME.sock</CLICON_SOCK>
  <CLICON_BACKEND_PIDFILE>/var/tmp/$APPNAME.pidfile</CLICON_BACKEND_PIDFILE>
  <CLICON_XMLDB_DIR>$dir</CLICON_XMLDB_DIR>
  <CLICON_SNMP_AGENT_SOCK>unix:$SOCK</CLICON_SNMP_AGENT_SOCK>
  <CLICON_SNMP_MIB>NET-SNMP-EXAMPLES-MIB</CLICON_SNMP_MIB>
</clixon-config>
EOF

cat <<EOF > $fyang
module clixon-example{
  yang-version 1.1;
  namespace "urn:example:clixon";
  prefix ex;
  import NET-SNMP-EXAMPLES-MIB {
      prefix "net-snmp-examples";
  }
}
EOF

function testinit(){
    new "test params: -f $cfg"
    if [ $BE -ne 0 ]; then
	# Kill old backend and start a new one
	new "kill old backend"
	sudo clixon_backend -zf $cfg
	if [ $? -ne 0 ]; then
            err "Failed to start backend"
	fi

	sudo pkill -f clixon_backend

	new "Starting backend"
	start_backend -s init -f $cfg
    fi
    
    new "wait backend"
    wait_backend
    
    if [ $CS -ne 0 ]; then
	# Kill old clixon_snmp, if any
	new "Terminating any old clixon_snmp processes"
	sudo killall -q clixon_snmp

	new "Starting clixon_snmp"
	start_snmp $cfg &
    fi

    new "wait snmp"
    wait_snmp

    # XXX: This should be remoeved!
    $($snmptable $OID)
}

function testexit()
{
    if [ $CS -ne 0 ]; then
	stop_snmp
    fi
}

new "SNMP table tests"
testinit

new "Test SNMP table for netSnmpIETFWGTable"
expectpart "$($snmptable $OID)" 0 "SNMP table: NET-SNMP-EXAMPLES-MIB::netSnmpIETFWGTable"

new "Set new value for one cell"
expectpart "$($snmpset $OID_SET s newstring)" 0 "$OID_SET = STRING: \"newstring\""

new "Test invalid type"
expectpart "$($snmpset $OID_SET u 1234)" 1

new "Test SNMP table for netSnmpIETFWGTable with new value"
expectpart "$($snmptable $OID)" 0 "newstring"

new "Cleaning up"
testexit

new "endtest"
endtest