#!/sbin/openrc-run
# Copyright 2011-2016 Mir Calculate. http://www.calculate-linux.org
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

CL_VIDEO_INSTALL=/usr/libexec/calculate/cl-video-install

depend() {
	need localmount root fsck modules
	before keymaps consolefont dbus display-manager local
	use swap hostname
	keyword -timeout -docker -systemd-nspawn -vserver
}

check_install_ability()
{
	local pkg=$1
	if [[ -d "/var/db/repos/gentoo" ]]
	then
	    FEATURES="-getbinpkg" FETCHCOMMAND=false DISTDIR=/var/calculate/distfiles emerge -fq $pkg &>/dev/null
	else
	    FEATURES="-getbinpkg" FETCHCOMMAND=false DISTDIR=/usr/portage/distfiles emerge -fq $pkg &>/dev/null
	fi
}

is_already_install()
{
	local pkg=$1
	local category=`echo $pkg | cut -d\/ -f1`
	local pkg=`echo $pkg | cut -d\/ -f2`
	local categoryPath=/var/db/pkg/${category}
	[[ -e $categoryPath ]] && ls $categoryPath | grep -q "^$pkg"
}

install_pkg()
{
	local pkg=$1
	ebegin "Installing $pkg"
	if [[ -d "/var/db/repos/gentoo" ]]
	then
	    FEATURES="-getbinpkg" FETCHCOMMAND=false DISTDIR=/var/calculate/distfiles emerge $pkg &>/dev/null
	else
	    FEATURES="-getbinpkg" FETCHCOMMAND=false DISTDIR=/usr/portage/distfiles emerge $pkg &>/dev/null
	fi
}

new_install_pkg()
{
	local pkg=$1
	local mask=$2
	pkg=`echo $pkg | cut -d\/ -f2`
	ebegin "Installing $pkg"
	if [[ -d "/var/db/repos/gentoo" ]]
	then
		FETCHCOMMAND=false DISTDIR=/var/calculate/distfiles PKGDIR=/var/calculate/packages ${CL_VIDEO_INSTALL} $pkg $mask &>/dev/null
	else
		FETCHCOMMAND=false DISTDIR=/usr/portage/distfiles PKGDIR=/usr/portage/packages ${CL_VIDEO_INSTALL} $pkg $mask &>/dev/null
	fi
	eend $?
}

variable_value()
{
	local varname=$1
	/usr/libexec/calculate/cl-variable --value $varname
}

install_video_driver()
{
	ebegin "Checking video drivers"
	case `variable_value install.os_install_x11_video_drv` in
		fglrx)
			local drv="x11-drivers/ati-drivers"
			;;
		nvidia)
			local nvidiamask=`variable_value install.os_nvidia_mask`
			if [[ -n $nvidiamask ]]
			then
				[[ -d /etc/portage/package.mask ]] || mkdir /etc/portage/package.mask
				echo $nvidiamask >/etc/portage/package.mask/nvidia
			fi
			local drv="x11-drivers/nvidia-drivers"
			;;
		*)
			true
			;;
	esac
	if [[ -n $drv ]]
	then
		if ! is_already_install $drv
		then
			if [[ -x ${CL_VIDEO_INSTALL} ]]
			then
				new_install_pkg $drv $nvidiamask
			else
				check_install_ability $drv && install_pkg $drv
			fi
		fi
		eend $?
	else
		eend 0
	fi
}

# create user guest if system has not non-root user
create_nonroot_user() {
	if which cl-desktop &>/dev/null &&
	  [[ -z $(variable_value install.cl_migrate_user | sed -r "s/[][,']|root//g") ]] &&
		[[  `variable_value install.os_install_linux_system` != "server" ]]
	then
		# passwd of non root user
		local nonroot_pw='$5$e/joOLXL$5GfArWgJx7BEcGqil3hTZoPGqWLRUUjCbzvl3gTWN75'
		# name of  non root user
		local nonroot_user="guest"
		ebegin "Creating ${nonroot_user} user"
		LANG=C useradd -p "${nonroot_pw}" \
			--groups users,wheel,audio,cdrom,video,cdrw,usb,plugdev,games,lp,lpadmin,scanner,uucp \
			${nonroot_user}
		chmod 700 /home/${nonroot_user}
		eend $?
	fi
}

# create/update root profile
configure_users() {
	if which cl-desktop &>/dev/null
	then
		LANG=C cl-desktop root
	fi
}

# setup alsautils astate
setup_alsautils() {
	if type alsactl &>/dev/null
	then
		local alsastatedir=/var/lib/alsa
		local alsahomedir=/var/run/alsasound

		checkpath -q -d -m 0700 -o root:root ${alsahomedir}

		mkdir -p "${alsastatedir}"
		local osaudio=`variable_value install.os_audio`
		if [[ $osaudio == "alsa" ]]
		then
			local vlevel="85%"
		else
			local vlevel="100%"
		fi
		einfo "Setting up ALSA Mixer Levels"
		# set output volumes to 85% - 100%
		amixer -c 0 scontrols | grep -v Mic |  sed -nr "/Wave|Headphone|Master|Front|LFE|Center|Side|Speaker|Surround|PCM/ s/.*'([^']+)'.*/\\1/p" | xargs -I {} amixer -c 0 -q set "{}" $vlevel unmute &>/dev/null
		# reduce beep
		amixer -c 0 scontrols | sed -nr "/Beep/ s/.*'([^']+)'.*/\\1/p" | xargs -I {} amixer -c 0 -q set "{}" 10% mute &>/dev/null
		# mute all mics
		amixer -c 0 scontrols | sed -nr "/Mic/ s/.*'([^']+)'.*/\\1/p" | xargs -I {} amixer -c 0 -q set "{}" 0% mute &>/dev/null
		LANG=C alsactl -E HOME="${alsahomedir}" -I -f "${alsastatedir}/asound.state" store
	fi
}

restore_filecaps() {
	if [[ -f /var/lib/calculate/filecaps ]] && type filecap &>/dev/null
	then
		while read line;
		do
			filecap $line
		done </var/lib/calculate/filecaps
	fi
	rm -f /var/lib/calculate/filecaps
}

start() {
	if rc-config list boot | grep -q -e "calculate " -e "calculate$"
	then
		local roottype=`variable_value main.os_root_type`
		local subsystem=`variable_value main.os_subsystem`
		local rootflash=`variable_value main.os_root_flash_dev`
		[[ $subsystem == "lxc" ]] && restore_filecaps
		if [[ $roottype != "livecd" ]] || grep "video:nvidia" /proc/cmdline &>/dev/null
		then
			install_video_driver
		fi
		setup_alsautils
		LANG=C create_nonroot_user
		if [[ $subsystem == "lxc" ]] || [[ $roottype == "livecd" ]]
		then
			LANG=C /usr/sbin/cl-core --method setup_system --no-progress --usenew-conf --live on --network on
		else
			LANG=C /usr/sbin/cl-core --method setup_system --no-progress --usenew-conf --live on
		fi
		LANG=C configure_users
		[[ -n $rootflash ]] && mount -o remount,rw $rootflash

		# reinit net.* services
		local roottypeext=`variable_value main.os_root_type_ext`
		if [[ $roottypeext == "nfs" ]]
		then
			touch /* /bin/* /sbin/*
		fi

		rc-update del calculate boot
		# set en_US sort service order (make net.eth,net.br,net.wlan more preferable than NetworkManager)
		LANG=en_US.utf8 /sbin/rc-update --update
		udevadm control --reload
		udevadm trigger --action="add" --subsystem-match=net

		if [[ $subsystem != "lxc" ]] && ! [[ -f /var/calculate/server/ca/server.key ]]
		then
			LANG=C /usr/sbin/cl-core --bootstrap
		fi

		if [[ $roottype == "livecd" ]]
		then
			LANG=C /usr/sbin/cl-core -u guest
		fi

		if [[ $roottype == "hdd" ]]
		then
			/usr/sbin/cl-core --clear-localuser-cert
			if [[ -d "/var/db/repos/gentoo" ]]
			then
				local distdir="/var/calculate/distfiles"
				local pkgdir="/var/calculate/packages"
			else
				local distdir="/usr/portage/distfiles"
				local pkgdir="/usr/portage/packages"
			fi
			local video_script="/usr/local/sbin/cl-video-install"
			local cache_video="/var/cache/calculate/video_drivers"
			[[ -d "${distdir}" ]] && [[ -n "`ls ${distdir}`" ]] && rm ${distdir}/*
			[[ -d "${pkgdir}" ]] && [[ -n "`ls ${pkgdir}`" ]] && rm -r ${pkgdir}/*
			[[ -f "${video_script}" ]] && rm -f "${video_script}"
			[[ -f "${cache_video}" ]] && rm -f "${cache_video}"
		fi
	else
		ewarn "System already configured!"
	fi

	return 0
}