#!/bin/sh
set -e

# The default in the template is to have all services enabled. Here, we
# disable services that are not available before the question is asked.
# This way, it is also possible select which services should be enabled
# using preseeding.

. /usr/share/debconf/confmodule

# Returns 0 if the service was actually removed
disable_service() {
	local to_disable="$1"

	db_get apt-setup/services-select
	local services="$RET"

	local new_services s
	if echo "$services" | grep -q $to_disable; then
		new_services=""
		for s in $(echo "$services" | sed "s/,/ /"); do
			if [ "$s" != $to_disable ]; then
				new_services=${new_services:+$new_services, }$s
			fi
		done
		db_set apt-setup/services-select "$new_services"
		return 0
	fi
	return 1
}

if ! db_get mirror/suite || [ -z "$RET" ]; then
	db_get cdrom/suite
fi
suite="$RET"

# No update services available for unstable
if [ "$suite" = unstable ]; then
	db_set apt-setup/services-select ""
	exit
fi

volatile=y
if [ "$suite" != stable ] && [ "$suite" != oldstable ]; then
	disable_service volatile || true
	volatile=n
fi

db_get apt-setup/security_host
db_subst apt-setup/services-select SEC_HOST "$RET"
db_get apt-setup/volatile_host
db_subst apt-setup/services-select VOL_HOST "$RET"

# Don't ask this for Ubuntu.
#db_input medium apt-setup/services-select || true
#if ! db_go; then
#	exit 10 # back up
#fi

# Selecting volatile for testing is invalid
if [ "$volatile" = n ] && disable_service volatile; then
	logger -t apt-setup "info: invalid selection of volatile for testing disabled"
fi

# No need to set up proxy here if no services were selected
db_get apt-setup/services-select
[ "$RET" ] || exit 0

# Proxy configuration is common to both security and volatile
if db_get mirror/http/proxy && [ -n "$RET" ]; then
	proxy="$RET"
	if ! grep -iq "Acquire::http::Proxy" $ROOT/etc/apt/apt.conf.new; then
		echo "Acquire::http::Proxy \"$proxy\";" >> $ROOT/etc/apt/apt.conf.new
	fi
fi