ifdef imagesize
ROOT_MB := $(shell printf '%i\n' "$$(( ${imagesize} - ${BOOT_MB} - 3 ))")
endif

PACKAGES := ${PACKAGES} btrfs-tools bzip2 ca-certificates cron deborphan firmware-linux-free gzip htop ifupdown iputils-ping irqbalance isc-dhcp-client less make net-tools nmap ntpdate openssh-client psmisc rsync sshfs sudo traceroute unzip vim wget wireless-tools wpasupplicant xz-utils zip

ifdef packages
PACKAGES := ${PACKAGES} $(subst ${comma_},${space_},${packages})
endif

export DEBCONF

define DEBCONF :=
keyboard-configuration	keyboard-configuration/model	select	Generic 105-key (Intl) PC
keyboard-configuration	keyboard-configuration/variant	select	English (US) - English (Macintosh)
endef

.PHONY: _debconf_selections
_install: _debconf_selections
_debconf_selections: ${SYSROOT}
	printf '%s\n' "$${DEBCONF}" |chroot "$${SYSROOT}" debconf-set-selections

.PHONY: _timezone _locales

ifdef timezone
define DEBCONF :=
${DEBCONF}
tzdata	tzdata/Areas	select	$(firstword $(subst /,${space_},${timezone}))
tzdata	tzdata/Zones/Europe	select	$(lastword $(subst /,${space_},${timezone}))
endef
PACKAGES := ${PACKAGES} tzdata
_config: _timezone
endif

ifdef locales
define DEBCONF :=
${DEBCONF}
locales	locales/locales_to_be_generated	multiselect	${locales}
locales	locales/default_environment_locale	select	$(firstword $(subst ${comma_},${space_},${locales}))
endef
#$(addsuffix ${space_}UTF-8,$(subst ${comma_},${space_}${comma},${locales}))
PACKAGES := ${PACKAGES} locales
_config: _locales
endif

_timezone: ${CFGROOT}
	rm "$${CFGROOT}/etc/timezone"
	chroot "$${CFGROOT}" dpkg-reconfigure --default-priority -u tzdata

_locales: ${CFGROOT}
	rm "$${CFGROOT}/etc/default/locale" "$${CFGROOT}/etc/locale.gen"
	chroot "$${CFGROOT}" dpkg-reconfigure --default-priority -u locales

.PHONY: _rootpass _users

ifdef rootpass
export rootpass
_config: _rootpass
endif

ifdef users
_config: _users
endif

_rootpass: ${CFGROOT}
	chroot "$${CFGROOT}" usermod -p "$$(openssl passwd "$${rootpass}")" root

_users: ${CFGROOT}
	#sed -Ei 's;^SHELL=/bin/sh$$;SHELL=/bin/bash;;' "${CFGROOT}/etc/default/useradd"
	for u in $(subst ${comma_},${space_},${users}); do \
		chroot "$${CFGROOT}" useradd -m -s /bin/bash -p "$$(openssl passwd "")" "$$u"; \
	done

ifdef wifi
ifdef wifipass
export wifi wifipass
${CFGROOT}/etc/network/interfaces.d/wifi: ${CFGROOT}
	printf 'auto wlan0\nallow-hotplug wlan0\n\niface wlan0 inet dhcp\n' >$@
	printf '  wpa-ssid "%s"\n  wpa-psk "%s"\n' "$$wifi" "$$wifipass" >>$@
else
export wifi
${CFGROOT}/etc/network/interfaces.d/wifi: ${CFGROOT}
	printf 'auto wlan0\nallow-hotplug wlan0\n\niface wlan0 inet dhcp\n' >$@
	printf '  wireless-ssid "%s"\n' "$$wifi" >>$@
endif
_config: ${CFGROOT}/etc/network/interfaces.d/wifi
endif