#!/bin/bash

MCORE_LIBDIR="@@MCORE_LIBDIR@@"
source @@SYSCONFDIR@@/mcore/mcore.conf
source @@SYSCONFDIR@@/mcore/citrix.conf
source @@SYSCONFDIR@@/mcore/citrix-enumerate.conf
source @@SYSCONFDIR@@/mcore/control.conf
source ${MCORE_LIBDIR}/include/common.global.class
source ${MCORE_LIBDIR}/include/daemon.global.class
source ${MCORE_LIBDIR}/include/mysqlfunctions.global.class

: ${CITRIX_BROWSER=""}
: ${CITRIX_USER=""}
: ${CITRIX_PASS=""}
: ${CITRIX_DOMAIN=""}

export IMPORTED_IDS=""

LOCKFILE="@@RUNDIR@@/citrix-cron.lock"

is_not_an_import_id()
{
	local id="$1"
	local entry

	for entry in ${IMPORTED_IDS}
	do
		if [[ ${entry} = ${id} ]]
		then
			return 1
		fi
	done

	return 0
}

# the lockfile is not meant to be perfect, it's just in case the
# two cron scripts get run close to each other to keep
# them from stepping on each other's toes.
[[ -f ${LOCKFILE} ]] && exit 0

trap "{ rm -f ${LOCKFILE}; exit 0; }" EXIT
touch ${LOCKFILE}

# get default settings from configs
[[ -z ${CITRIX_BROWSER} ]] && export CITRIX_BROWSER="${PNABROWSE_CITRIX_BROWSER}"
[[ -z ${CITRIX_USER} ]] && export CITRIX_USER="${MCORE_CITRIX_USER}"
[[ -z ${CITRIX_PASS} ]] && export CITRIX_PASS="${MCORE_CITRIX_PASS}"
[[ -z ${CITRIX_DOMAIN} ]] && export CITRIX_DOMAIN="${MCORE_CITRIX_DOMAIN}"

OPT=""
[[ -n ${CITRIX_USER} ]] && OPT+=" -U ${CITRIX_USER}"
[[ -n ${CITRIX_PASS} ]] && OPT+=" -P ${CITRIX_PASS}"
[[ -n ${CITRIX_DOMAIN} ]] && OPT+=" -D ${CITRIX_DOMAIN}"
SESSION_LIST=$(pnabrowse -A ${OPT} ${CITRIX_BROWSER} 2> /dev/null)
if [[ $? != 0 ]]
then
	echo "could not retrieve session list"
	exit 1
fi

# exclude the desktop session, which is always the first
declare -i counter=0
while read line
do
	if [[ ${counter} -gt 0 ]]
	then
		session=$(echo ${line} | cut -d"'" -f 2)
		description=""

		# import or update db entry
		id=$(mysqldo "select id from values_citrix_session where session='${session}';")
		if [[ -z ${id} ]]
		then
			mysqldo "insert into values_citrix_session (session,description,enabled) values('${session}','${description}','1');"
		else
			mysqldo "update values_citrix_session set session='${session}',description='${description}',enabled='1' where id='${id}';"
		fi

		# get and save id
		id=$(mysqldo "select id from values_citrix_session where session='${session}';")
		export IMPORTED_IDS+=" ${id}"
	fi
	(( counter++ ))
done << EOF
$(echo "${SESSION_LIST}")
EOF

# now disable all other ids in the database
DATABASE_IDS=$(mysqldo "select id from values_citrix_session")
for id in ${DATABASE_IDS}
do
	if is_not_an_import_id "${id}"
	then
		# disable this one, not imported=not existing on the storefront-server in the moment
		mysqldo "update values_citrix_session set enabled='0' where id='${id}';"
	fi
done

exit 0