#!/bin/sh

. /lib/partman/lib/base.sh

dev=$2
id=$3
part=$dev/$id

cd $dev

[ -f $part/method -a -f $part/acting_filesystem ] || exit 0
filesystem=$(cat $part/acting_filesystem)

do_fatmountpoint () {
	local noninteractive tpl
	noninteractive=true
	while true; do
		if [ -f "$part/mountpoint" ]; then
			old_mountpoint=$(cat $part/mountpoint)
		else
			old_mountpoint=/
		fi
		case "$filesystem" in
		    fat16|fat32|ntfs)
			tpl=partman-basicfilesystems/fat_mountpoint
			;;
		    *)
			tpl=partman-basicfilesystems/mountpoint
			;;
		esac
		db_set $tpl "$old_mountpoint"
		db_input critical $tpl || $noninteractive
		db_go || return 1
		db_get $tpl

		case "$RET" in
		    Do?not?mount?it)
				rm -f $part/mountpoint
			break
			;;
		    Enter?manually)
			if do_mountpoint_manual; then break; fi
			noninteractive="return 1"
			;;
		    *)
			echo $RET >$part/mountpoint
			break
		esac
	done
}

do_mountpoint_manual () {
	local noninteractive
	noninteractive=true
	while true; do
		new_mountpoint=''
		while [ ! "$new_mountpoint" ]; do
			if [ -f "$part/mountpoint" ]; then
				old_mountpoint=$(cat $part/mountpoint)
			else
				old_mountpoint=/
			fi
			db_set partman-basicfilesystems/mountpoint_manual "$old_mountpoint"
			db_input critical partman-basicfilesystems/mountpoint_manual || \
				$noninteractive
			db_go || return 1
			db_get partman-basicfilesystems/mountpoint_manual

			if expr "$RET" : '/[^ ]*$' >/dev/null; then
				new_mountpoint=$RET
			else
				db_input high partman-basicfilesystems/bad_mountpoint || true
				db_go || true
			fi
		done
		echo $RET >$part/mountpoint
		break
	done
}

case $1 in
    mountpoint)
	code=0
	if [ "$filesystem" = fat16 ] || [ "$filesystem" = fat32 ] || [ "$filesystem" = ntfs ]; then
		do_fatmountpoint || code=$?
	else
		select_mountpoint $dev $id || code=$?
	fi
	if [ "$code" -eq 0 ]; then
		update_partition $dev $id
	fi
	;;
    options)
	select_mountoptions $dev $id
	;;
    format_swap)
	>$part/format
	update_partition $dev $id
	;;
    dont_format_swap)
	if [ -f $part/format ]; then
		rm $part/format
		update_partition $dev $id
	fi
	;;
    label)
	label=''
	if [ -f $part/label ]; then
		label=$(cat $part/label)
	fi
	db_set partman-basicfilesystems/choose_label "$label"
	db_input critical partman-basicfilesystems/choose_label || true
	db_go || exit 1
	db_get partman-basicfilesystems/choose_label
	if [ "$RET" ]; then
		echo "$RET" >$part/label
	else
		rm -f $part/label
	fi
	db_reset partman-basicfilesystems/choose_label
	;;
    reserved_for_root)
	if [ -f $part/reserved_for_root ]; then
		reserved=$(cat $part/reserved_for_root)
	else
		reserved=5
	fi
	db_set partman-basicfilesystems/specify_reserved "$reserved%"
	db_input critical partman-basicfilesystems/specify_reserved || true
	db_go || exit 1
	db_get partman-basicfilesystems/specify_reserved
	RET=`expr "$RET" : '\([0-9][0-9]\?\)\([,. %].*\)\?$'`
	if [ "$RET" ]; then
		echo "$RET" >$part/reserved_for_root
	else
		rm -f $part/reserved_for_root
	fi
	db_reset partman-basicfilesystems/specify_reserved
	;;
    usage)
	db_metaget partman-basicfilesystems/text/typical_usage description
	typical_usage="$RET"
	if [ -f $part/usage ]; then
		usage=$(cat $part/usage)
	else
		usage="$typical_usage"
	fi
	db_subst partman-basicfilesystems/specify_usage CHOICES "$typical_usage, news, largefile, largefile4"
	db_set partman-basicfilesystems/specify_usage "$usage"
	db_input critical partman-basicfilesystems/specify_usage || true
	db_go || exit 1
	db_get partman-basicfilesystems/specify_usage
	if [ "$RET" != "$typical_usage" ]; then
		echo "$RET" >$part/usage
	else
		rm -f $part/usage
	fi
	;;
esac

exit 0