#!/usr/bin/env bash
#set -x
# 1. create Config.in.systems with all available target systems for each architecture
# 2. if ADK configuration exist, create Config.in.arch/Config.in.system with fixed values
# 3. exit when native system build is detected

topdir=$(readlink -nf $(dirname $0)/.. 2>/dev/null || (cd $(dirname $0)/..; pwd -P))

defaults() {
	echo 'source "target/config/Config.in.arch.default"' > $topdir/target/config/Config.in.arch
	echo 'source "target/config/Config.in.arch.choice"' >> $topdir/target/config/Config.in.arch
	echo 'source "target/config/Config.in.system.default"' > $topdir/target/config/Config.in.system
	echo 'source "target/config/Config.in.system.choice"' >> $topdir/target/config/Config.in.system
	exit 0
}

check_native() {
	native=$(grep ^ADK_LINUX_NATIVE $topdir/.config)
	if [ ! -z "$native" ];then
		exit 0
	fi
}

touch $topdir/target/config/Config.in.native

for i in $(ls $topdir/target/);do
	if [ -d "$topdir/target/$i/sys-enabled" ];then
		cat $topdir/target/$i/sys-enabled/* > $topdir/target/$i/Config.in.systems 2>/dev/null
	fi
done
if [ -f $topdir/.config ];then

check_native

arch=$(grep ^ADK_TARGET_ARCH $topdir/.config|cut -f 2 -d = | sed -e 's#"##g')
cpuarch=$(grep ^ADK_TARGET_CPU_ARCH $topdir/.config|cut -f 2 -d = | sed -e 's#"##g')
systemsym=$(grep ^ADK_TARGET_SYSTEM_ $topdir/.config|cut -f 1 -d =) 
system=$(grep ^ADK_TARGET_SYSTEM= $topdir/.config|cut -f 2 -d = | sed -e 's#"##g')
systems=$(grep ^ADK_TARGET_SYSTEM= $topdir/.config|cut -f 2 -d = | sed -e 's#"##g'|sed -e 's#-#_#g')
archsym=$(echo ADK_LINUX_$arch|tr '[:lower:]' '[:upper:]')

if [ -z "$arch" -o -z "$system" ];then
	defaults
fi

cat > $topdir/target/config/Config.in.arch << EOF 	
source "target/config/Config.in.arch.default"
config $archsym
	boolean
EOF

if [ "${system}" = "toolchain" -o "${system}" = "qemu" -o "${system}" = "vbox" -o "${system}" = "aranym" ];then
	sys=${system}-$cpuarch
else
	sys=$system
fi

cat > $topdir/target/config/Config.in.system << EOF 	
source "target/config/Config.in.system.default"
comment "Architecture: $arch"
comment "CPU Architecture: $cpuarch"
comment "System: $sys"

config $systemsym
	boolean
	select $archsym
$(grep select $topdir/target/$arch/sys-available/$sys)
	default y
EOF
else
	defaults
fi
exit 0