#!/bin/bash
depend_module yaourt
depend_procedure core base

var_RUNTIME_PACKAGES="svn"

phase_preparation=(\
	configure \
	intro \
	sysprep \
	msg_manual \
	runtime_network \
	runtime_svn \
	msg_automatic \
	select_source \
	runtime_packages \
	runtime_yaourt)

phase_finish=(configure_home msg_report)


worker_intro ()
{
	notify "Dieter::automatic procedure running..."
}


worker_configure ()
{
	var_UI_TYPE=${arg_ui_type:-cli}
}


worker_msg_manual ()
{
	# All things that need to be done manually first
	notify "A few manual things need to happen first..."
}


worker_msg_automatic ()
{
	notify "**** From now on. everything will be automatic. Enjoy the show!" # not true: you need pass for dm_crypt
}


worker_runtime_network ()
{
	if ask_yesno "Do you want to (re)-configure your networking?"
	then
		interactive_runtime_network
	else
		infofy "Ok. skipping network config"
	fi
}


worker_runtime_svn ()
{
	SVN_USERNAME=dieter
	ask_password svn #TODO: if user entered incorrect password, the install process will just fail..
	SVN="svn --username $SVN_USERNAME --password $SVN_PASSWORD"
	SVN_BASE=https://192.168.1.2/svn/repos
	ask_string "Which host are you installing?" desktop-a7nx8
	TARGET_HOST=$ANSWER_STRING #TODO: allow passing cmdline argument (and check with svn info). handle -z $ANSWER_STRING
	_accept_ssl_cert
}


worker_prepare_disks ()
{
	modprobe dm-crypt || die_error "Cannot modprobe dm-crypt"
	modprobe -q aes-x86-64 || modprobe aes-i586 || die_error "Cannot modprobe aes-x86-64 or aes-i586"

	# Cleanup whatever state the disk is in (that includes previous, failed runs of this script)
	umount /dev/mapper/cryptpool-* 2>/dev/null
	vgremove -f cryptpool 2>/dev/null
	pvremove /dev/mapper/sda2_crypt 2>/dev/null
	cryptsetup luksClose sda2_crypt 2>/dev/null
	dd if=/dev/urandom of=/dev/sda bs=512 count=1

	#TODO: integrate this stuff into the functions in the libs  (process_partitions and filesystems, rollback and bailout if needed) + do error checking and handling
	#NOTE: i don't think i should quote to prevent globbing, but it does seem to help i think (hard to check as resource is busy and you can't reload kernel partition tables)
	sfdisk /dev/sda 2>&1 | grep -v 'not have an msdos signature' << EOF
,10,L,'*'
,,L
EOF
	[ $? -gt 0 ] && die_error "Could not sfdisk /dev/sda.  Return code is $?"
	#TODO: when sfdisk is done, i still have an invalid partition table?
	cryptsetup --batch-mode -c aes-xts-plain -y -s 512 luksFormat /dev/sda2 || die_error "Cannot cryptsetup luksFormat /dev/sda2"
	cryptsetup luksOpen /dev/sda2 sda2_crypt || die_error "Cannot cryptsetup luksOpen /dev/sda2"
	pvcreate /dev/mapper/sda2_crypt || die_error "Cannot pvcreate the PV on the encrypted blockdevice"
	vgcreate cryptpool /dev/mapper/sda2_crypt || die_error "Cannot create the VG an the PV on the encrypted blockdevice"
	lvcreate -L 2G   -n swap cryptpool && \
	lvcreate -L 500M -n tmp  cryptpool && \
	lvcreate -L 10G  -n home cryptpool && \
	lvcreate -L 10G  -n root cryptpool && \
	lvcreate -L 3G   -n var  cryptpool || die_error "Could not create at least one of the LV's"
	for i in home root tmp var
	do
		mkdir -p $var_TARGET_DIR/$i
		mke2fs -j /dev/cryptpool/$i && mount /dev/cryptpool/$i $var_TARGET_DIR/$i || die_error "Could not format or mount $var_TARGET_DIR/$i"
	done

	# TODO: swapon the thing and don't forget to swapoff it in the cleanup part above
	# TODO: fstab? auto-add to fstab with libs? auto mkdir's on target_dir?
	true	
}

worker_package_list ()
{
	$SVN export $SVN_BASE/ddm-configs/$TARGET_HOST/trunk/package-list $var_PKG_FILE || die_error "Could not export package list!"
	# cat -> there are newlines in it -> var=`echo $var` -> not anymore :)
	TARGET_PACKAGES=`cat $var_PKG_FILE` && TARGET_PACKAGES=`echo $TARGET_PACKAGES` || die_error "Could not cat package list. THIS SHOULD NEVER HAPPEN."
	true
}


worker_install_packages ()
{
        target_prepare_pacman core extra community #TODO: it would be better if this was a separate worker, i think
        [ -z "$TARGET_PACKAGES" ] && die_error "No packages listed to be installed!"
        installpkg
}


worker_configure_home ()
{
	#checkout from svn
	true
}


worker_set_clock ()
{
	#timezone="Europe/Brussels"
	#Not doing anything. hwclock is set already and configs are coming from svn anyway..
	true
}


worker_install_bootloader ()
{
	install-grub /dev/sda
}


worker_runtime_yaourt ()
{
	_yaourt_replace_pacman
}