#!/bin/bash

BROWSER=""
: ${STOREFRONT_STORE=""}
: ${REMOVE_STOREFRONT_TMP=1}

source @@SYSCONFDIR@@/mcore/citrix.conf

if [[ -z ${STOREFRONT_STORE} ]]
then
	STOREFRONT_STORE="${DEFAULT_STOREFRONT_STORE}"
fi

# prefer storebrowse
if [[ -e ${STOREBROWSE_EXECUTABLE} ]]
then
	BROWSER=${STOREBROWSE_EXECUTABLE}
# use old pnabrowse
elif [[ -e ${PNABROWSE_EXECUTABLE} ]]
then
	BROWSER=${PNABROWSE_EXECUTABLE}
	# newer use storefront subscriptions with pnabrowse
	STOREFRONT_ADDSTORE_REQUIRED=0
	STOREFRONT_SUBSCRIBE_APP=0
else
	echo "No Citrix browser found."
	exit 1
fi

USE_XMESSAGE=0
if [[ -x $(type -P xmessage) ]]
then
	USE_XMESSAGE=1
fi

die() { echo "ERROR: $@"; exit 1; }

storefront_list_store()
{
	"${BROWSER}" -l | cut -d"'" -f1-3 | sed "s:'::g"
}

storefront_add_store()
{
	if [[ -z $("${BROWSER}" -l "${STOREFRONT_STORE}" | grep "'${STOREFRONT_STORE}'") ]]
	then
		"${BROWSER}" -a "${STOREFRONT_STORE}"
	else
		echo "Store '${STOREFRONT_STORE}' already added."
	fi
}

storefront_delete_store()
{
	if [[ -n $("${BROWSER}" -l "${STOREFRONT_STORE}" | grep "'${STOREFRONT_STORE}'") ]]
	then
		"${BROWSER}" -d "${STOREFRONT_STORE}"
	else
		echo "Store '${STOREFRONT_STORE}' not found."
	fi
}

storefront_subscribe_app()
{
	# already subscribed?
	if [[ -z $("${BROWSER}" -S -U "${USER}" -P "${PASS}" -D "${DOMAIN}" "${STOREFRONT_STORE}" | grep "'${APP}'") ]]
	then
		"${BROWSER}" -s "${APP}" -U "${USER}" -P "${PASS}" -D "${DOMAIN}" "${STOREFRONT_STORE}"
	else
		echo "'${APP}' already subscribed.'"
	fi
}

storefront_unsubscribe_app()
{
	# already subscribed?
	if [[ -n $("${BROWSER}" -S -U "${USER}" -P "${PASS}" -D "${DOMAIN}" "${STOREFRONT_STORE}" | grep "'${APP}'") ]]
	then
		"${BROWSER}" -u "${APP}" -U "${USER}" -P "${PASS}" -D "${DOMAIN}" "${STOREFRONT_STORE}"
	else
		echo "'${APP}' not subscribed.'"
	fi
}

storefront_enumerate()
{
	"${BROWSER}" -E -U "${USER}" -P "${PASS}" -D "${DOMAIN}" "${STOREFRONT_STORE}"
}

storefront_launch()
{
	"${BROWSER}" -L "${APP}" -U "${USER}" -P "${PASS}" -D "${DOMAIN}" "${STOREFRONT_STORE}"
}

# very basic getops
for argv in $*
do
	case $1 in
		--enumerate|--launch|--liststore|--addstore|--delstore) CMD="${1//--}" ;;
		--user) shift; USER="$1" ;;
		--password) shift; PASS="$1" ;;
		--domain) shift; DOMAIN="$1" ;;
		--app) shift; APP="$1" ;;
		--store) shift; STOREFRONT_STORE="$1" ;;  #override all envvars and configuration vars
	esac
	shift
done

[[ -n ${CMD} ]] || die "No CMD given"

# create required citrix runtime with an accepted eula
# and remove all temp files
install -d ~/.ICAClient
touch ~/.ICAClient/.eula_accepted
if [[ ${REMOVE_STOREFRONT_TMP} = 1 ]]
then
	if [[ -d ~/.ICAClient/.tmp ]]
	then
		rm -r ~/.ICAClient/.tmp
	fi
fi

case ${CMD} in
	enumerate)
		# enumerate apps
		if [[ ${STOREFRONT_ADDSTORE_REQUIRED} = 1 ]]
		then
			storefront_add_store
		fi
		storefront_enumerate
		;;

	launch)
		# launch apps
		if [[ ${USE_XMESSAGE} = 1 ]]
		then
			xmessage -center -title "ICA-Client" -buttons "" "
   Starting session '${APP}' ...   

" &
		fi
		if [[ ${STOREFRONT_ADDSTORE_REQUIRED} = 1 ]]
		then
			storefront_add_store
		fi
		if [[ ${STOREFRONT_SUBSCRIBE_APP} = 1 ]]
		then 
			storefront_subscribe_app
		fi
		if [[ ${BROWSER} = ${PNABROWSE_EXECUTABLE} ]]
		then
			# always enumerate all apps to fill the cache or launch will not work
			# and always enumerate if the cache is older than one day
			if [ ! -f ~/.ICAClient/cache/Citrix/PNAgent/AppCache/appdata.xml ] ||
				[[ ! -z $(find ~/.ICAClient/cache/Citrix/PNAgent/AppCache/appdata.xml -mtime +1) ]]
			then
				storefront_enumerate
			fi
		fi
		storefront_launch
		retval=$?
		case ${retval} in
			0)
				if [[ ${USE_XMESSAGE} = 1 ]]
				then
					killall xmessage
				fi
				;;
			248)
				if [[ ${USE_XMESSAGE} = 1 ]]
				then
					killall xmessage
					xmessage -center -title "ICA-Client" -buttons "
   Abort" "Wrong username or password for '${APP}'.   

" &
				else
					echo "Wrong username or password for '${APP}'."
				fi
				;;
			*)
				if [[ ${USE_XMESSAGE} = 1 ]]
				then
					killall xmessage
					xmessage -center -title "ICA-Client" -buttons "
   Abort" "Failed to start session '${APP}'.   

" &
				else
					echo "Failed to start session '${APP}'."
				fi
				;;
		esac
		;;

	liststore)
		storefront_list_store
		;;

	addstore)
		if [[ -n $2 ]]
		then
			STOREFRONT_STORE="$2"
		fi
		storefront_add_store
		;;

	delstore)
		if [[ -n $2 ]]
		then
			STOREFRONT_STORE="$2"
		fi
		storefront_delete_store
		;;

	*)
		echo "Unknown command '${CMD}'."
		exit 1
		;;
esac