# shellcheck disable=SC2148

# arg 1: the new package version
post_install() {
	post_upgrade "$1" ""
}

# arg 1: the new package version
# arg 2: the old package version
post_upgrade() {
	echo "==> Ensuring KVMD users and groups ..."
	systemd-sysusers /usr/lib/sysusers.d/kvmd.conf

	# https://github.com/systemd/systemd/issues/13522
	# shellcheck disable=SC2013
	for user in $(grep '^u ' /usr/lib/sysusers.d/kvmd.conf | awk '{print $2}'); do
		usermod --expiredate= "$user" >/dev/null
	done

	chown kvmd:kvmd /etc/kvmd/htpasswd || true
	chown kvmd:kvmd /etc/kvmd/totp.secret || true
	chown kvmd-ipmi:kvmd-ipmi /etc/kvmd/ipmipasswd || true
	chown kvmd-vnc:kvmd-vnc /etc/kvmd/vncpasswd || true
	chmod 600 /etc/kvmd/*passwd || true
	for target in nginx.conf.mako ssl.conf; do
		chmod 644 "/etc/kvmd/nginx/$target" || true
	done

	chown kvmd /var/lib/kvmd/msd 2>/dev/null || true
	chown kvmd-pst:kvmd-pst /var/lib/kvmd/pst 2>/dev/null || true
	chmod 1775 /var/lib/kvmd/pst 2>/dev/null || true

	if [ ! -e /etc/kvmd/nginx/ssl/server.crt ]; then
		echo "==> Generating KVMD-Nginx certificate ..."
		kvmd-gencert --do-the-thing
	fi

	if [ ! -e /etc/kvmd/vnc/ssl/server.crt ]; then
		echo "==> Generating KVMD-VNC certificate ..."
		kvmd-gencert --do-the-thing --vnc
	fi

	for target in nginx vnc; do
		chown root:root /etc/kvmd/$target/ssl || true
		owner="root:kvmd-$target"
		path="/etc/kvmd/$target/ssl/server.key"
		if [ ! -L "$path" ]; then
			chown "$owner" "$path" || true
			chmod 440 "$path" || true
		fi
		path="/etc/kvmd/$target/ssl/server.crt"
		if [ ! -L "$path" ]; then
			chown "$owner" "$path" || true
			chmod 444 "$path" || true
		fi
	done

	echo "==> Patching configs ..."

	if [[ "$(vercmp "$2" 3.301)" -lt 0 ]]; then
		[ ! -f /etc/fstab ] || (sed -i -e "s|,data=journal||g" /etc/fstab && touch -t 200701011000 /etc/fstab)
		[ ! -f /etc/fstab ] || (sed -i -e "/tmpfs \/run\s/d" /etc/fstab && touch -t 200701011000 /etc/fstab)
		[ ! -f /etc/pacman.conf ] || sed -i -e "s|^Server = https://pikvm.org/repos/|Server = https://files.pikvm.org/repos/arch/|g" /etc/pacman.conf
		[ ! -f /boot/config.txt ] || sed -i -e 's/^dtoverlay=pi3-disable-bt$/dtoverlay=disable-bt/g' /boot/config.txt
		[ ! -f /boot/config.txt ] || sed -i -e 's/^dtoverlay=dwc2$/dtoverlay=dwc2,dr_mode=peripheral/g' /boot/config.txt
		[ ! -f /etc/conf.d/rngd ] || (echo 'RNGD_OPTS="-o /dev/random -r /dev/hwrng -x jitter -x pkcs11 -x rtlsdr"' > /etc/conf.d/rngd)
		[ ! -f /etc/pam.d/system-login ] || sed -i -e '/\<pam_systemd\.so\>/ s/^#*/#/' /etc/pam.d/system-login
		[ ! -f /etc/pam.d/system-auth ] || sed -i -e '/\<pam_systemd_home\.so\>/ s/^#*/#/' /etc/pam.d/system-auth
		[ -e /etc/systemd/network/99-default.link ] || ln -s /dev/null /etc/systemd/network/99-default.link
	fi

	if [[ "$(vercmp "$2" 3.317)" -lt 0 ]]; then
		[ ! -f /boot/config.txt ] || sed -i -e 's/^dtoverlay=i2c-rtc,pcf8563$/dtoverlay=i2c-rtc,pcf8563,wakeup-source/g' /boot/config.txt
	fi

	if [[ "$(vercmp "$2" 3.320)" -lt 0 ]]; then
		# https://github.com/pikvm/pikvm/issues/1245
		systemctl mask \
			dirmngr@etc-pacman.d-gnupg.socket \
			gpg-agent-browser@etc-pacman.d-gnupg.socket \
			gpg-agent-extra@etc-pacman.d-gnupg.socket \
			gpg-agent-ssh@etc-pacman.d-gnupg.socket \
			gpg-agent@etc-pacman.d-gnupg.socket \
			keyboxd@etc-pacman.d-gnupg.socket
	fi

	if [[ "$(vercmp "$2" 3.332)" -lt 0 ]]; then
		grep -q "^dtoverlay=vc4-kms-v3d" /boot/config.txt || cat << EOF >> /boot/config.txt

# Passthrough
dtoverlay=vc4-kms-v3d
disable_overscan=1
EOF
	fi

	if [[ "$(vercmp "$2" 4.4)" -lt 0 ]]; then
		systemctl disable kvmd-pass || true
	fi

	if [[ "$(vercmp "$2" 4.5)" -lt 0 ]]; then
		sed -i 's/X-kvmd\.pst-user=kvmd-pst/X-kvmd.pst-user=kvmd-pst,X-kvmd.pst-group=kvmd-pst/g' /etc/fstab
		touch -t 200701011000 /etc/fstab
	fi

	if [[ "$(vercmp "$2" 4.31)" -lt 0 ]]; then
		if [[ "$(systemctl is-enabled kvmd-janus || true)" = enabled || "$(systemctl is-enabled kvmd-janus-static || true)" = enabled ]]; then
			systemctl enable kvmd-media || true
		fi
	fi

	if [[ "$(vercmp "$2" 4.47)" -lt 0 ]]; then
		cp /usr/share/kvmd/configs.default/janus/janus.plugin.ustreamer.jcfg /etc/kvmd/janus || true
	fi

	# Some update deletes /etc/motd, WTF
	# shellcheck disable=SC2015,SC2166
	[ ! -f /etc/motd -a -f /etc/motd.pacsave ] && mv /etc/motd.pacsave /etc/motd || true
}