#!/bin/sh
set -e

. /usr/share/debconf/confmodule

file="$1"

if [ ! -e /cdrom/.disk/cd_type ] || [ -d /hd-media ] || \
   [ ! -e /var/lib/install-cd.id ]; then
	exit 0
fi
# multi-arch CDs have cd_type 'non_complete'
# KDE/Xfce CDs and multi-arch DVDs have '/single' postfix in cd_type
cd_type=$(cat /cdrom/.disk/cd_type)
if [ "$cd_type" != full_cd ] && [ "$cd_type" != dvd ]; then
	exit 0
fi

get_label() {
	$logoutput --pass-stdout $chroot $ROOT \
		apt-cdrom ident | head -n1 | grep "^Stored label:" | \
		sed "s/^[^:]*: //"
}

logoutput=""
if [ "$CATCHLOG" ]; then
	logoutput="log-output -t apt-setup"
fi

chroot=
if [ "$ROOT" ]; then
	chroot=chroot

	# We can only change CDs if current CD is unmounted
	$logoutput umount /cdrom || true
fi

tmp=$($chroot $ROOT tempfile)

# Only needed with Etch version of apt-cdrom
$logoutput umount /target/cdrom/ || true

cd_label=$(tail -n1 /var/lib/install-cd.id)
db_subst apt-setup/cdrom/set-first LABEL "$cd_label"
db_input high apt-setup/cdrom/set-first || true
if ! db_go; then
	if [ "$ROOT" ]; then
		load-install-cd "$ROOT"
	fi
	exit 10
fi
db_get apt-setup/cdrom/set-first

while [ "$RET" = true ]; do
	cd_label=$(get_label)
	# Hmm. The greps could fail if a label contains regexp control chars...
	if [ "$cd_label" ] && \
	   (grep "^deb cdrom:\[$cd_label\]" $file || \
	    grep "^deb cdrom:\[$cd_label\]" $ROOT/etc/apt/sources.list.new); then
		template=apt-setup/cdrom/set-double
		db_subst $template LABEL "$cd_label"
	else
		# apt-cdrom can be interactive, avoid that
		if $logoutput $chroot $ROOT apt-cdrom add \
		   -o Dir::Etc::SourceList=$tmp \
		   </dev/null; then
			cat $ROOT$tmp >> $file

			# Label is assigned by apt-cdrom add, so get again
			cd_label=$(get_label)
			template=apt-setup/cdrom/set-next
			db_subst $template LABEL "$cd_label"
		else
			template=apt-setup/cdrom/set-failed
		fi
		rm -f $ROOT$tmp $ROOT$tmp~
	fi

	# Only needed with Etch version of apt-cdrom
	$logoutput umount /target/cdrom/ || true

	db_input critical $template || true
	if ! db_go; then
		if [ "$ROOT" ]; then
			load-install-cd "$ROOT"
		fi
		exit 10
	fi
	db_get $template
done

# Make sure the installation CD is loaded again
if [ "$ROOT" ]; then
	load-install-cd "$ROOT"
fi