#!/bin/sh

. /etc/rc.config

size=$(stty size 2>/dev/null || echo 37 93)
export RIGHT=${RIGHT-$((${size#* }-10))}
export PATH=/sbin:/usr/sbin:/bin:/usr/bin


failed()
{
	touch /var/spool/failed
}

check_status()
{
	status=$?
	if [ -n "$1" ]; then
		status=$1
	elif [ -e /var/spool/failed ]; then
		status=1
	fi
	rm -f /var/spool/failed

	echo -en "\\033[1A\\033[${RIGHT}G"
	if [ $status = 0 ]; then
		echo -en "\\033[1;32mdone"
	else
		if [ -n "$2" ]; then
			echo -en "\\033[1;37m$2"
		else
			echo -en "\\033[1;31mfailed"
			touch /var/spool/error
		fi
	fi
	echo -e "\\033[0;39m"

	echo $(($(cat /var/spool/bootstep 2>/dev/null || echo 0) + 1)) > /var/spool/bootstep
	echo 0 > /var/spool/subbootstep
	show_bootstep
	
	return $status
}

show_step()
{
	subbootstep=$(($(cat /var/spool/subbootstep 2>/dev/null || echo 0) + 1))
	echo $subbootstep > /var/spool/subbootstep
	echo -n "$(echo '|/-\' | cut -b $(($subbootstep%4+1)))"
	show_bootstep
}

show_bootstep()
{
	bootstep=$(cat /var/spool/bootstep 2>/dev/null || echo 0)
	subbootstep=$(cat /var/spool/subbootstep 2>/dev/null || echo 0)
	if [ "$splash" = "silent" ]; then
		if [ -e /proc/splash ]; then
			echo "show $((65534 * $bootstep / ${BOOTSTEPS:-100} + ($subbootstep * 100)))" 2>/dev/null > /proc/splash
		else
			psplash-write "PROGRESS $((100 * $bootstep / ${BOOTSTEPS:-100} + ($subbootstep/6)))"
		fi
	fi
}

hide_splash()
{
	if [ -e /proc/splash ]; then
		if echo "verbose" 2>/dev/null >/proc/splash && test -z "$1"; then
			# scroll one page down
			yes "" | head -n $(stty -F /dev/tty1 size | cut -d ' ' -f 1) > /dev/tty1
			usleep 10000
		fi
	else
		psplash-write "QUIT"
	fi
}

show_splash()
{
	if [ "$splash" = "silent" ]; then
		if [ -e /proc/splash ]; then
			show_bootstep
			echo "silent" 2>/dev/null >/proc/splash
		else
			killall -q psplash
			psplash >/dev/null 2>&1 &
		fi
	fi
}

#call()
#{
#	if [ "$splash" = "silent" ]; then
#		eval "echo \"\$( ($1) 2>&1 )\"" &
#	else
#		eval "$1"
#	fi
#}
                                   

tr()
{
	export LC_ALL=$LANG
	export TEXTDOMAIN
	eval "echo -en \"$(gettext "$1")\""
}

register_setting()
{
	name=$1
	value=$2
	description=$3
	
	if [ -z "`grep -e "^$name=" /etc/rc.config`" ]; then
		if [ -z "$registerSetting" ]; then
			echo >> /etc/rc.config
		fi
		if [ -n "$description" ]; then
			echo "# $description" >> /etc/rc.config
		fi
		echo "$name=\"$value\"" >> /etc/rc.config
		eval "$name=\"$value\""
	fi
	registerSetting=1
}

update_setting()
{
	name=$1
	value=$2
	description=$3

	register_setting "$name" "$value" "$description"
	sed -ie "s|^$name=.*|$name=\"$value\"|g" /etc/rc.config
	eval "$name=\"$value\""
}

register_config()
{
	update_config "$1" "$2" "$3"
}

update_config()
{
	search=$1
	value=$2
	file=$3

	if grep -qs "$search" "$file"; then
		sed -ie "s|.*\($search\).*|$value|g" "$file"
	else
		echo -e "$value" >> "$file"
	fi
}

search_modules()
{
	addon=$1
	{ pcimodules $addon; usbmodules $addon; } | /usr/bin/tr "\n" "," | sed "s/.$//"
}

load_modules()
{
	name=$1
	modullist=$2
	status=0
	
	if [ "$modullist" = "auto" ]; then
		eval "modullist=\"$(search_modules $name)\""
	fi
	
	OLDIFS=$IFS
	IFS=,
	for modul in $modullist; do
		if [ -n "$modul" ]; then
			IFS=$OLDIFS
			eval "modprobe $modul" >>/dev/stdlog 2>&1 || status=$?
			IFS=,
		fi
	done
	echo "$modullist" > /tmp/$name.drivers
	return $status
}

unload_modules()
{
	name=$1
	status=0

	OLDIFS=$IFS
	IFS=""
	modullist="$(echo -n ,$(cat /tmp/$name.drivers 2>/dev/null) | tac -bs ,)"
	IFS=,
	for modul in $modullist; do
		modul=${modul## }
		modul=${modul%% *}
		if [ -n "$modul" ]; then
			IFS=$OLDIFS
			modprobe -r $modul >>/dev/stdlog 2>/dev/null || status=$?
			IFS=,
		fi
	done
	return $status
}

setup_drivers()
{
	name=${0##*/}
	name=${name%.*}
	values="$1"
	eval "driver=\"\$$(echo "$name" | /usr/bin/tr a-z- A-Z_)_DRIVER\""
	auto="$(search_modules $name)"
	test "$driver" != "" && echo "$driver"
	test "$driver" != "$auto" -a -n "$auto" && echo "$auto"
	test "$driver" != "auto" && echo "auto"
	echo "-"
	echo "$values"
}

register_application()
{
	/etc/applications/rc.register add "$1" "$2" "$3"
}

unregister_application()
{
	/etc/applications/rc.register del "$1" "$2" "$3"
}