#!/bin/sh

if [[ $(/usr/bin/id -u) -ne 0 ]]; then
	printf "must be run as root\n"
	exit 1
fi

WORKING_DIR=$(pwd)
SRC_DIR=$(pwd)/../src

printf "parsing install.conf\n"
	source $WORKING_DIR/install.conf
		if [ "$?" != 0 ]; then
			printf "install.conf not found\n"
			exit 1
		fi

case $1 in
	install)
		printf "installing executable\n"
		mv -v $SRC_DIR/glacier $PREFIX/bin
			if [ "$?" != 0 ]; then
				mv -v $SRC_DIR/glacier $PREFIX
				printf "directory $PREFIX/bin does not exist, moving to $PREFIX instead\n"
			fi
		CC $SRC_DIR/int-check/main.c -o glacier-integrity-check
		mv -v $SRC_DIR/int-check/glacier-integrity-check $PREFIX/bin
			if [ "$?" != 0 ]; then
				mv -v $SRC_DIR/int-check/glacier-integrity-check $PREFIX
				printf "directory $PREFIX/bin does not exist, moving to $PREFIX instead.\n"
			fi
		printf "installing configuration files\n"
		mv -v $SRC_DIR/glacier.conf $CONFDIR
			if [ "$?" != 0 ]; then
				printf "$CONFDIR does not exist\n"
				printf "this can be corrected by running:\n"
				printf "# mkdir -v -pv $CONFDIR\n"
				exit 1
			fi

		mkdir -v /opt/glacier
		mkdir -v /opt/glacier/workspace
		mkdir -v /var/log/glacier
		mkdir -v /var/cache/glacier

		mkdir -v /etc/glacier
		mkdir -v /etc/glacier/pkginfo

		mv -v $SRC_DIR/hooks $CONFDIR/glacier
		mv -v $SRC_DIR/post-hooks $CONFDIR/glacier
		mv -v $SRC_DIR/pre-hooks $CONFDIR/glacier
		mv -v $SRC_DIR/hooks.sh $CONFDIR/glacier
		mv -v $SRC_DIR/make.conf $CONFDIR
		mv -v $SRC_DIR/glacier-integrity-check $PREFIX/bin
			if [ "$?" != "0" ]; then
				mv -v $SRC_DIR/glacier-integrity-check $PREFIX
				printf "directory $PREFIX/bin does not exist, moving to $PREFIX instead\n"
			fi

		printf "finished installation\n"
		exit 0
	;;
	update)
		printf "updating executable\n"
		rm -v $PREFIX/bin/glacier || rm -v $PREFIX/glacier
		rm -v $PREFIX/bin/glacier-integrity-check || rm -v $PREFIX/glacier-integrity-check
		mv -v $SRC_DIR/glacier $PREFIX || mv -v $SRC_DIR/glacier $PREFIX/bin
		mv -v $SRC_DIR/glacier-integrity-check $PREFIX || mv -v $SRC_DIR/glacier-integrity-check $PREFIX/bin
		printf "finished updating\n"
		exit 0
esac