#!/usr/bin/env bash
create_board_package() {
	display_alert "Creating board support package for CLI" "$CHOSEN_ROOTFS" "info"

	bsptempdir=$(mktemp -d) # subject to TMPDIR/WORKDIR, so is protected by single/common error trapmanager to clean-up.
	chmod 700 ${bsptempdir}

	local destination=${bsptempdir}/${BSP_CLI_PACKAGE_FULLNAME}
	mkdir -p "${destination}"/DEBIAN
	cd $destination

	# copy general overlay from packages/bsp-cli
	copy_all_packages_files_for "bsp-cli"

	# install copy of boot script & environment file
	if [[ -n "${BOOTSCRIPT}" ]] && [[ $SRC_EXTLINUX != yes ]]; then
		# @TODO: add extension method bsp_prepare_bootloader(), refactor into u-boot extension
		local bootscript_src=${BOOTSCRIPT%%:*}
		local bootscript_dst=${BOOTSCRIPT##*:}
		mkdir -p "${destination}"/usr/share/armbian/

		display_alert "BOOTSCRIPT" "${BOOTSCRIPT}" "debug"
		display_alert "bootscript_src" "${bootscript_src}" "debug"
		display_alert "bootscript_dst" "${bootscript_dst}" "debug"

		# if not using extlinux, copy armbianEnv from template; prefer userpatches source
		if [[ $SRC_EXTLINUX != yes ]]; then
			if [ -f "${USERPATCHES_PATH}/bootscripts/${bootscript_src}" ]; then
				run_host_command_logged cp -pv "${USERPATCHES_PATH}/bootscripts/${bootscript_src}" "${destination}/usr/share/armbian/${bootscript_dst}"
			else
				run_host_command_logged cp -pv "${SRC}/config/bootscripts/${bootscript_src}" "${destination}/usr/share/armbian/${bootscript_dst}"
			fi
			if [[ -n $BOOTENV_FILE && -f $SRC/config/bootenv/$BOOTENV_FILE ]]; then
				run_host_command_logged cp -pv "${SRC}/config/bootenv/${BOOTENV_FILE}" "${destination}"/usr/share/armbian/armbianEnv.txt
			fi
		else
			display_alert "Using extlinux, regular bootscripts ignored" "SRC_EXTLINUX=${SRC_EXTLINUX}" "warn"
		fi

		# add configuration for setting uboot environment from userspace with: fw_setenv fw_printenv
		if [[ -n $UBOOT_FW_ENV ]]; then
			UBOOT_FW_ENV=($(tr ',' ' ' <<< "$UBOOT_FW_ENV"))
			mkdir -p "${destination}"/etc
			echo "# Device to access      offset           env size" > "${destination}"/etc/fw_env.config
			echo "/dev/mmcblk0	${UBOOT_FW_ENV[0]}	${UBOOT_FW_ENV[1]}" >> "${destination}"/etc/fw_env.config
		fi
	fi

	# Replaces: base-files is needed to replace /etc/update-motd.d/ files on Xenial
	# Replaces: unattended-upgrades may be needed to replace /etc/apt/apt.conf.d/50unattended-upgrades
	# (distributions provide good defaults, so this is not needed currently)
	# Depends: linux-base is needed for "linux-version" command in initrd cleanup script
	# Depends: fping is needed for armbianmonitor to upload armbian-hardware-monitor.log
	cat <<- EOF > "${destination}"/DEBIAN/control
		Package: ${BSP_CLI_PACKAGE_NAME}
		Version: $REVISION
		Architecture: $ARCH
		Maintainer: $MAINTAINER <$MAINTAINERMAIL>
		Installed-Size: 1
		Section: kernel
		Priority: optional
		Depends: bash, linux-base, u-boot-tools, initramfs-tools, lsb-release, fping
		Provides: linux-${RELEASE}-root-legacy-$BOARD, linux-${RELEASE}-root-current-$BOARD, linux-${RELEASE}-root-edge-$BOARD
		Suggests: armbian-config
		Replaces: zram-config, base-files, armbian-tools-$RELEASE, linux-${RELEASE}-root-legacy-$BOARD (<< $REVISION~), linux-${RELEASE}-root-current-$BOARD (<< $REVISION~), linux-${RELEASE}-root-edge-$BOARD (<< $REVISION~)
		Breaks: linux-${RELEASE}-root-legacy-$BOARD (<< $REVISION~), linux-${RELEASE}-root-current-$BOARD (<< $REVISION~), linux-${RELEASE}-root-edge-$BOARD (<< $REVISION~)
		Recommends: bsdutils, parted, util-linux, toilet
		Description: Armbian board support files for $BOARD
	EOF

	# set up pre install script
	cat <<- EOF > "${destination}"/DEBIAN/preinst
		#!/bin/sh

		# tell people to reboot at next login
		[ "\$1" = "upgrade" ] && touch /var/run/.reboot_required

		# convert link to file
		if [ -L "/etc/network/interfaces" ]; then

		    cp /etc/network/interfaces /etc/network/interfaces.tmp
		    rm /etc/network/interfaces
		    mv /etc/network/interfaces.tmp /etc/network/interfaces

		fi

		# fixing ramdisk corruption when using lz4 compression method
		sed -i "s/^COMPRESS=.*/COMPRESS=gzip/" /etc/initramfs-tools/initramfs.conf

		# swap
		grep -q vm.swappiness /etc/sysctl.conf
		case \$? in
		0)
		    sed -i 's/vm\.swappiness.*/vm.swappiness=100/' /etc/sysctl.conf
		    ;;
		*)
		    echo vm.swappiness=100 >>/etc/sysctl.conf
		    ;;
		esac
		sysctl -p >/dev/null 2>&1
		# replace canonical advertisement
		if [ -d "/var/lib/ubuntu-advantage/messages/" ]; then
			echo "\nSupport Armbian! \nLearn more at https://armbian.com/donate" > /var/lib/ubuntu-advantage/messages/apt-pre-invoke-esm-service-status
			cp /var/lib/ubuntu-advantage/messages/apt-pre-invoke-esm-service-status /var/lib/ubuntu-advantage/messages/apt-pre-invoke-no-packages-apps.tmpl
			cp /var/lib/ubuntu-advantage/messages/apt-pre-invoke-esm-service-status /var/lib/ubuntu-advantage/messages/apt-pre-invoke-packages-apps
			cp /var/lib/ubuntu-advantage/messages/apt-pre-invoke-esm-service-status /var/lib/ubuntu-advantage/messages/apt-pre-invoke-packages-apps.tmpl
		fi
		# disable deprecated services
		[ -f "/etc/profile.d/activate_psd_user.sh" ] && rm /etc/profile.d/activate_psd_user.sh
		[ -f "/etc/profile.d/check_first_login.sh" ] && rm /etc/profile.d/check_first_login.sh
		[ -f "/etc/profile.d/check_first_login_reboot.sh" ] && rm /etc/profile.d/check_first_login_reboot.sh
		[ -f "/etc/profile.d/ssh-title.sh" ] && rm /etc/profile.d/ssh-title.sh
		[ -f "/etc/update-motd.d/10-header" ] && rm /etc/update-motd.d/10-header
		[ -f "/etc/update-motd.d/30-sysinfo" ] && rm /etc/update-motd.d/30-sysinfo
		[ -f "/etc/update-motd.d/35-tips" ] && rm /etc/update-motd.d/35-tips
		[ -f "/etc/update-motd.d/40-updates" ] && rm /etc/update-motd.d/40-updates
		[ -f "/etc/update-motd.d/98-autoreboot-warn" ] && rm /etc/update-motd.d/98-autoreboot-warn
		[ -f "/etc/update-motd.d/99-point-to-faq" ] && rm /etc/update-motd.d/99-point-to-faq
		[ -f "/etc/update-motd.d/80-esm" ] && rm /etc/update-motd.d/80-esm
		[ -f "/etc/update-motd.d/80-livepatch" ] && rm /etc/update-motd.d/80-livepatch
		[ -f "/etc/apt/apt.conf.d/02compress-indexes" ] && rm /etc/apt/apt.conf.d/02compress-indexes
		[ -f "/etc/apt/apt.conf.d/02periodic" ] && rm /etc/apt/apt.conf.d/02periodic
		[ -f "/etc/apt/apt.conf.d/no-languages" ] && rm /etc/apt/apt.conf.d/no-languages
		[ -f "/etc/init.d/armhwinfo" ] && rm /etc/init.d/armhwinfo
		[ -f "/etc/logrotate.d/armhwinfo" ] && rm /etc/logrotate.d/armhwinfo
		[ -f "/etc/init.d/firstrun" ] && rm /etc/init.d/firstrun
		[ -f "/etc/init.d/resize2fs" ] && rm /etc/init.d/resize2fs
		[ -f "/lib/systemd/system/firstrun-config.service" ] && rm /lib/systemd/system/firstrun-config.service
		[ -f "/lib/systemd/system/firstrun.service" ] && rm /lib/systemd/system/firstrun.service
		[ -f "/lib/systemd/system/resize2fs.service" ] && rm /lib/systemd/system/resize2fs.service
		[ -f "/usr/lib/armbian/apt-updates" ] && rm /usr/lib/armbian/apt-updates
		[ -f "/usr/lib/armbian/firstrun-config.sh" ] && rm /usr/lib/armbian/firstrun-config.sh
		# fix for https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1897491
		[ -d "/var/lib/lightdm" ] && (chown -R lightdm:lightdm /var/lib/lightdm ; chmod 0750 /var/lib/lightdm)
		exit 0
	EOF

	chmod 755 "${destination}"/DEBIAN/preinst

	# postrm script
	cat <<- EOF > "${destination}"/DEBIAN/postrm
		#!/bin/sh
		if [ remove = "\$1" ] || [ abort-install = "\$1" ]; then

		    systemctl disable armbian-hardware-monitor.service armbian-hardware-optimize.service >/dev/null 2>&1
		    systemctl disable armbian-zram-config.service armbian-ramlog.service >/dev/null 2>&1

		fi
		exit 0
	EOF

	chmod 755 "${destination}"/DEBIAN/postrm

	# set up post install script
	cat <<- EOF > "${destination}"/DEBIAN/postinst
		#!/bin/sh
		#
		# ${BOARD} BSP post installation script
		#

		[ -f /etc/lib/systemd/system/armbian-ramlog.service ] && systemctl --no-reload enable armbian-ramlog.service

		# check if it was disabled in config and disable in new service
		if [ -n "\$(grep -w '^ENABLED=false' /etc/default/log2ram 2> /dev/null)" ]; then

		     sed -i "s/^ENABLED=.*/ENABLED=false/" /etc/default/armbian-ramlog

		fi

		# fix boot delay "waiting for suspend/resume device"
		if [ -f "/etc/initramfs-tools/initramfs.conf" ]; then

		    if ! grep --quiet "RESUME=none" /etc/initramfs-tools/initramfs.conf; then
		         echo "RESUME=none" >> /etc/initramfs-tools/initramfs.conf
		    fi

		fi

	EOF
	# install bootscripts if they are not present. Fix upgrades from old images
	if [[ $FORCE_BOOTSCRIPT_UPDATE == yes ]]; then
		cat <<- EOF >> "${destination}"/DEBIAN/postinst
			if [ true ]; then

				# this package recreate boot scripts
		EOF
	else
		cat <<- EOF >> "${destination}"/DEBIAN/postinst
			if [ ! -f /boot/$bootscript_dst ]; then

			# if boot script does not exits its recreated
		EOF
	fi
	cat <<- EOF >> "${destination}"/DEBIAN/postinst
		    # move bootscript to /usr/share/armbian
		    # create a backup
		    [ -f /etc/armbian-release ] &&  . /etc/armbian-release
		    [ -z \${VERSION} ] && VERSION=$(echo \`date +%s\`)
		    if [ -f /boot/$bootscript_dst ]; then
		       cp /boot/$bootscript_dst /usr/share/armbian/${bootscript_dst}-\${VERSION} >/dev/null 2>&1
		       echo "NOTE: You can find previous bootscript versions in /usr/share/armbian !"
		    fi

		    # cleanup old bootscript backup
		    ls /usr/share/armbian/boot.cmd-* >/dev/null 2>&1 | head -n -5 | xargs rm -f --
		    ls /usr/share/armbian/boot.ini-* >/dev/null 2>&1 | head -n -5 | xargs rm -f --

		    echo "Recreating boot script"
		    cp /usr/share/armbian/$bootscript_dst /boot  >/dev/null 2>&1
		    rootdev=\$(sed -e 's/^.*root=//' -e 's/ .*\$//' < /proc/cmdline)
		    rootfstype=\$(sed -e 's/^.*rootfstype=//' -e 's/ .*$//' < /proc/cmdline)

		    # recreate armbianEnv.txt if it and extlinux does not exists
		    if [ ! -f /boot/armbianEnv.txt ] && [ ! -f /boot/extlinux/extlinux.conf ]; then
		      cp /usr/share/armbian/armbianEnv.txt /boot  >/dev/null 2>&1
		      echo "rootdev="\$rootdev >> /boot/armbianEnv.txt
		      echo "rootfstype="\$rootfstype >> /boot/armbianEnv.txt
		    fi

		    [ -f /boot/boot.ini ] && sed -i "s/setenv rootdev.*/setenv rootdev \\"\$rootdev\\"/" /boot/boot.ini
		    [ -f /boot/boot.ini ] && sed -i "s/setenv rootfstype.*/setenv rootfstype \\"\$rootfstype\\"/" /boot/boot.ini
		    [ -f /boot/boot.cmd ] && mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr  >/dev/null 2>&1

		fi

			[ ! -f "/etc/network/interfaces" ] && [ -f "/etc/network/interfaces.default" ] && cp /etc/network/interfaces.default /etc/network/interfaces
			ln -sf /var/run/motd /etc/motd
			rm -f /etc/update-motd.d/00-header /etc/update-motd.d/10-help-text

			if [ ! -f "/etc/default/armbian-motd" ]; then
				mv /etc/default/armbian-motd.dpkg-dist /etc/default/armbian-motd
			fi
			if [ ! -f "/etc/default/armbian-ramlog" ] && [ -f /etc/default/armbian-ramlog.dpkg-dist ]; then
				mv /etc/default/armbian-ramlog.dpkg-dist /etc/default/armbian-ramlog
			fi
			if [ ! -f "/etc/default/armbian-zram-config" ] && [ -f /etc/default/armbian-zram-config.dpkg-dist ]; then
				mv /etc/default/armbian-zram-config.dpkg-dist /etc/default/armbian-zram-config
			fi

			if [ -L "/usr/lib/chromium-browser/master_preferences.dpkg-dist" ]; then
				mv /usr/lib/chromium-browser/master_preferences.dpkg-dist /usr/lib/chromium-browser/master_preferences
			fi

			# Read release value
			if [ -f /etc/lsb-release ]; then
				RELEASE=\$(cat /etc/lsb-release | grep CODENAME | cut -d"=" -f2 | sed 's/.*/\u&/')
				sed -i "s/^PRETTY_NAME=.*/PRETTY_NAME=\"${VENDOR} $REVISION "\${RELEASE}"\"/" /etc/os-release
				echo "${VENDOR} ${REVISION} \${RELEASE} \\l \n" > /etc/issue
				echo "${VENDOR} ${REVISION} \${RELEASE}" > /etc/issue.net
			fi

			# Reload services
			systemctl --no-reload enable armbian-hardware-monitor.service armbian-hardware-optimize.service armbian-zram-config.service armbian-led-state.service >/dev/null 2>&1
			exit 0
	EOF

	chmod 755 "${destination}"/DEBIAN/postinst

	# won't recreate files if they were removed by user
	# TODO: Add proper handling for updated conffiles
	# We are runing this script each time apt runs. If this package is removed, file is removed and error is triggered.
	# Keeping armbian-apt-updates as a configuration, solve the problem
	cat <<-EOF > "${destination}"/DEBIAN/conffiles
	/usr/lib/armbian/armbian-apt-updates
	EOF

	# copy common files from a premade directory structure
	run_host_command_logged rsync -a ${SRC}/packages/bsp/common/* ${destination}

	# trigger uInitrd creation after installation, to apply
	# /etc/initramfs/post-update.d/99-uboot
	cat <<- EOF > "${destination}"/DEBIAN/triggers
		activate update-initramfs
	EOF

	# copy distribution support status
	local releases=($(find ${SRC}/config/distributions -mindepth 1 -maxdepth 1 -type d))
	for i in "${releases[@]}"; do
		echo "$(echo $i | sed 's/.*\///')=$(cat $i/support)" >> "${destination}"/etc/armbian-distribution-status
	done

	# armhwinfo, firstrun, armbianmonitor, etc. config file
	cat <<- EOF > "${destination}"/etc/armbian-release
		# PLEASE DO NOT EDIT THIS FILE
		BOARD=$BOARD
		BOARD_NAME="$BOARD_NAME"
		BOARDFAMILY=${BOARDFAMILY}
		BUILD_REPOSITORY_URL=${BUILD_REPOSITORY_URL}
		BUILD_REPOSITORY_COMMIT=${BUILD_REPOSITORY_COMMIT}
		VERSION=$REVISION
		LINUXFAMILY=$LINUXFAMILY
		ARCH=$ARCHITECTURE
		IMAGE_TYPE=$IMAGE_TYPE
		BOARD_TYPE=$BOARD_TYPE
		INITRD_ARCH=$INITRD_ARCH
		KERNEL_IMAGE_TYPE=$KERNEL_IMAGE_TYPE
	EOF

	# this is required for NFS boot to prevent deconfiguring the network on shutdown
	sed -i 's/#no-auto-down/no-auto-down/g' "${destination}"/etc/network/interfaces.default

	# execute $LINUXFAMILY-specific tweaks
	if [[ $(type -t family_tweaks_bsp) == function ]]; then
		display_alert "Running family_tweaks_bsp" "${LINUXFAMILY} - ${BOARDFAMILY}" "debug"
		family_tweaks_bsp
		display_alert "Done with family_tweaks_bsp" "${LINUXFAMILY} - ${BOARDFAMILY}" "debug"
	fi

	call_extension_method "post_family_tweaks_bsp" <<- 'POST_FAMILY_TWEAKS_BSP'
		*family_tweaks_bsp overrrides what is in the config, so give it a chance to override the family tweaks*
		This should be implemented by the config to tweak the BSP, after the board or family has had the chance to.
	POST_FAMILY_TWEAKS_BSP

	# add some summary to the image
	fingerprint_image "${destination}/etc/armbian.txt"

	# fixing permissions (basic), reference: dh_fixperms
	find "${destination}" -print0 2> /dev/null | xargs -0r chown --no-dereference 0:0
	find "${destination}" ! -type l -print0 2> /dev/null | xargs -0r chmod 'go=rX,u+rw,a-s'

	# create board DEB file
	fakeroot_dpkg_deb_build "${destination}" "${destination}.deb"
	mkdir -p "${DEB_STORAGE}/"
	run_host_command_logged rsync --remove-source-files -r "${destination}.deb" "${DEB_STORAGE}/"

	display_alert "Done building BSP CLI package" "${destination}" "debug"
}