#!/bin/bash

#set -x
set -e

TOP_DIR=/opt/m5plus
TOP_BIN_DIR=/opt/m5plus/bin

CMAKE_VERSION=cmake-3.26.3
CMAKE_TAR=cmake-3.26.3-linux-x86_64
CMAKE_TAR_PKG=${CMAKE_TAR}.tar.gz

CMAKE_DIR=${TOP_DIR}/${CMAKE_TAR}
CMAKE_BIN_DIR=${TOP_DIR}/${CMAKE_TAR}/bin

if [ -z "$1" ]; then
	echo "CROSS_COMPILER_PATH=$CMAKE_BIN_DIR"
	if [ -f $CMAKE_DIR/version ]; then
		if [ -n "`grep ${CMAKE_VERSION} $CMAKE_DIR/version`" ]; then
			echo "CMake Tools has been installed yet!" >&2
			exit 0
		fi
	else
		echo "Do not have version file" >&2
	fi

	eval $0 force
	[ $? == 0 ] && exit 0

	echo "sorry, you must have super privilege!" >&2
	select choose in 'I have root passwd' 'I have sudo privilege' 'Try again' 'Ignore' 'Aboart'
	do
		case $choose in
		*root*)
			su -c "$0 force"
			[ $? == 0 ] && break
			;;
		*sudo*)
			sudo $0 force
			[ $? == 0 ] && break
			;;
		Try*)
			eval $0 force
			[ $? == 0 ] && break
			;;
		Ignore)
			exit 0
			;;
		Aboart)
			exit 1
			;;
		*)
			echo "Invalid select, please try again!" >&2
			continue
			;;
		esac

		echo "Install CMake tools failed!" >&2
	done

	exit 0
fi

mkdir -pv ${TOP_DIR}
[ $? != 0 ] && exit 1

if [ -d ${CMAKE_DIR} ]; then
	echo "Delete exist directory..." >&2
	rm ${CMAKE_DIR} -rf
else
	mkdir -pv $CMAKE_DIR
fi

echo "Extract CMake tools ..." >&2
tar -xf ${CMAKE_TAR_PKG} -C $TOP_DIR
[ $? != 0 ] && exit 1

mkdir -pv ${TOP_BIN_DIR}
[ $? != 0 ] && exit 1

# creat link
for file in `ls ${CMAKE_BIN_DIR}/${CMAKE_PREFIX}*`; do
  ln `realpath --relative-to=${TOP_BIN_DIR} ${CMAKE_BIN_DIR}`/${file##*/} ${TOP_BIN_DIR}/${CMAKE_PREFIX_LN}${file##*${CMAKE_PREFIX}} -sfv
  [ $? != 0 ] && exit 1
done

sed -i 's/${CMAKE_BIN_DIR}[:]//g' /etc/profile
[ $? != 0 ] && exit 1

if [ ! -f ${CMAKE_DIR}/version ]; then
  echo "${CMAKE_VERSION}" > ${CMAKE_DIR}/version
fi

if [ -z "`grep "${TOP_BIN_DIR}" < /etc/profile`" ]; then
		echo "export CMake tool path ${TOP_BIN_DIR}" >&2
		cat >> /etc/profile << EOF

# `date`
# M5plus CMake tool path
export PATH="${CMAKE_BIN_DIR}:\$PATH"

EOF

	[ $? != 0 ] && exit 1
else
	echo "skip export CMake tool path" >&2
fi

exit 0