config_bwSuite_server() {
	# $1: Path to server directory
	cat > "$1/config.properties" <<-EOF
		vmstore.path = /srv/openslx/nfs
		db.uri = jdbc:mysql://localhost/sat?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8&characterSetResults=utf8&connectionCollation=utf8mb4_unicode_ci
		db.username = sat
		db.password = %MYSQL_SAT_PASS%
		db.location-table = openslx.location
		master.address = bwlp-masterserver.ruf.uni-freiburg.de
	EOF

	chown root:images "$1/config.properties"
	chmod 0640 "$1/config.properties"
}

install_bwSuite_service() {
	# $1: Path to server directory
	cat > "/etc/systemd/system/dmsd.service" <<-EOF
		[Unit]
		Description=DMSD is the Dozentenmodul server daemon
		Wants=mysql.service
		After=mysql.service

		[Service]
		User=dmsd
		Group=images
		WorkingDirectory=$1
		ExecStart=$1/dmsd.sh
		Restart=always
		RestartSec=5
		SyslogIdentifier=dmsd
		StandardOutput=syslog
		StandardError=syslog

		[Install]
		WantedBy=multi-user.target
	EOF
	cat > "$1/dmsd.sh" <<-EOF
		#!/bin/sh

		KB=\$($(which grep) ^MemTotal /proc/meminfo | $(which awk) '{print \$2}')
		[ -z "\$KB" ] && KB=600000
		if [ "\$KB" -gt 4096000 ]; then
		    MB=\$(( \$KB / ( 1024 * 3 ) + 667 ))
		else
		    MB=\$(( \$KB / ( 1024 * 2 ) ))
		fi
		if [ "\$MB" -gt 2000 ] && ! $(which java) -version 2>&1 | $(which grep) -q '64-Bit'; then
		    MB=2000
		fi
		[ "\$MB" -lt 190 ] && MB=190
		[ "\$MB" -gt 4500 ] && MB=4500

		exec $(which java) -Xmx\${MB}M -jar dmsd.jar
	EOF
	chmod +x "$1/dmsd.sh"
}

install_bwSuite_server() {
	# $1: directory to install server to
	echo "# Installing server part of bwSuite... "
	mkdir -p "$1" 2>/dev/null
	install -m 0644 -p -o root -g root "$BASEDIR/static_files/dmsd.jar" "$1/dmsd.jar" \
		|| perror "Could not install dmsd.jar"
	chown -R root:root "$1"
	chmod -R go-w "$1"

	config_bwSuite_server "$1"
	install_bwSuite_service "$1"
}