#!/bin/sh

if [ ! -c /dev/vcs ]; then
    mknod /dev/vcs c 7 0
fi

while [ -z "$instdisk" ]; do
VIRTDISKS=`ls /dev/vd*|wc -l`
if [ $VIRTDISKS -gt 0 ]; then 
for disk in /dev/vd*[^0-9]; do
	if [ -z "$firstdirectdisk" ]; then firstdirectdisk=$disk; fi #remember first disk as a guess of medium resort
	#no edd_id in debian installer, no edd hints supported
done
fi
if [ -z "$firstdirectdisk" ]; then
	SCSIDISKS=`ls /dev/sd*|wc -l`
	if [ $SCSIDISKS -gt 0 ]; then 
	for disk in /dev/sd*[^0-9]; do
		currdriver=`udevadm info --attribute-walk --name $disk |grep DRIVERS|grep -v '""'|grep -v '"sd"'|head -n 1|sed -e 's/[^"]*"//' -e 's/"//'`
		case "$currdriver" in
			"ata_piix4"|"PMC MaxRAID"|"ahci"|"megaraid_sas") #certainly direct
				if [ -z "$firstdirectdisk" ]; then firstdirectdisk=$disk; fi #remember first disk as a guess of medium resor
				;;
			 "mptsas"|"mpt2sas") #*PROBABLY* not SAN, but SAS SAN is possible
				if [ -z "$probablyfirstdirectdisk" ]; then probablyfirstdirectdisk=$disk; fi
				;;
			*) # could be san or who knows what, use it as a last resort
				if [ -z "$firstdisk" ]; then firstdisk=$disk; fi 
				;;
		esac
	done
	fi
fi
if [ -z "$instdisk" ]; then
        if [ ! -z "$firstdirectdisk" ]; then
                instdisk=$firstdirectdisk
        elif [ ! -z "$probablyfirstdirectdisk" ]; then
                instdisk=$probablyfirstdirectdisk
        elif [ ! -z "$firstdisk" ]; then
                instdisk=$firstdisk
        fi
fi
if [ ! -z "$instdisk" ]; then debconf-set partman-auto/disk "$instdisk"; fi
sleep 0.1
done &



cat >/tmp/foo.sh <<EOF
#!/bin/sh

#
#  If no arguments:
#
#     1) Start child process to connect as client to master, and re-execute this script to send
#        "installmonitor" to master.  Do not wait for child process.
#
#     2) Loop forever.  For each iteration, start child process as server waiting for a client
#        connection.  Once a connection is established, child process re-executes this script to
#        handle request from that particular client.
#

if [ \$# -eq 0 ]; then
    xcatdhost="#XCATVAR:XCATMASTER#"
    xcatdport="#TABLE:site:key=xcatiport:value#"

    /usr/bin/nc "\$xcatdhost" "\$xcatdport" -e /tmp/foo.sh install_monitor &

    while true; do
        /usr/bin/nc -l -p 3001 -e /tmp/foo.sh serve_client
    done

    exit 1                        # never reached; reboot ends this
fi

#
#  If the script was called with the "install_monitor" argument, stdin and stdout are
#  connected to an xCAT daemon on the master.  Write the "installmonitor" request to the
#  daemon.
#

if [ "\$1" = "install_monitor" ]; then
    cmd=""
    while [ "\$cmd" != "done" ]; do
        read cmd remainder
    
        if [ "\$cmd" == "ready" ]; then
            echo "installmonitor"
        fi
    done

    exit 0
fi

#
#  When execution reaches here, script called with "serve_client" argument, which means
#  stdin and stdout are connected to a client.  Read the request from the client, provide
#  the answer to the client, and terminate.
#

read cmd arg remainder

case "\$cmd" in
#   "sh")                        #TODO: ENABLE IF DEBUG
#       output=\$(eval \$arg \$remainder)
#       echo "\$output"
#       echo "EOO"
#       ;;

    "screendump")
        output=\$(eval chvt \$arg; cat /dev/vcs)
        echo "\$output"
        ;;

    "stat")
        sedcmds='/^[^ ]+ +[^ ]+ +install /h; \${ g; s,^[^ ]+ +[^ ]+ +install +([^ ]+) +[^ ]+ ([^ ]+).*,installing \1 \2,; p }'
        output=\$(sed -nre "\$sedcmds" /target/var/log/dpkg.log 2>/dev/null)

        if [ -z "\$output" ]; then
            output="installing prep"
        fi

        echo "\$output"
        ;;
esac

exit 0
EOF

chmod 755 /tmp/foo.sh

/tmp/foo.sh >/tmp/foo.log 2>&1 &



if [ -d /sys/firmware/efi ]; then
    echo "ubuntu-efi ::" > /tmp/partitioning
    echo "    512 512 1024 fat16" >> /tmp/partitioning
    echo '    $iflabel{ gpt } $reusemethod{ } method{ efi } format{ }' >> /tmp/partitioning
    echo "    ." >> /tmp/partitioning
else
    echo "ubuntu-boot ::" > /tmp/partitioning
    echo "100 50 100 ext3" >> /tmp/partitioning
    echo '    $primary{ } $bootable{ } method{ format } format{ } use_filesystem{ } filesystem{ ext3 } mountpoint{ /boot }' >> /tmp/partitioning
    echo "    ." >> /tmp/partitioning
fi
echo "500 10000 1000000000 ext3" >> /tmp/partitioning
echo "    method{ format } format{ } use_filesystem{ } filesystem{ ext3 } mountpoint{ / }" >> /tmp/partitioning
echo "    ." >> /tmp/partitioning
echo "2048 512 300% linux-swap" >> /tmp/partitioning
echo "    method{ swap } format{ }" >> /tmp/partitioning
echo "    ." >> /tmp/partitioning
exit 0

