#!/bin/sh
# gscripts -  Scripts for Glacier operations

source /etc/glacier.conf

while [[ $# -gt 0 ]]; do
	case $1 in
		help)
			printf "gscripts - backend for many Glacier functionalities since v3\n"
			printf "gscripts {help}			show this message\n"
			printf "gscripts {integrity-check}	verify package integrity\n"
			printf "gscripts {download}		download a package\n"
			printf "gscripts {post-install}		run post installation cleanup hooks\n"
			printf "\n"
			printf "this program can be distributed under the terms of the GNU General\n"
			printf "Public License version 3 or higher\n"
			exit 0
		;;
		preload)
			/etc/glacier/hooks
				if [ "$?" != "0" ]; then
					exit 1
				fi
			exit 0
		;;
		integrity-check)
			$GLACIER_DOWNLOAD_BACKEND $WORLD_SUM/$input.checksum || $GLACIER_DOWNLOAD_BACKEND $GALAXY_SUM/$input.checksum || $GLACIER_DOWNLOAD_BACKEND $UNIVERSE_SUM/$input.checksum || $GLACIER_DOWNLOAD_BACKEND $MULTIVERSE_SUM/$input.checksum || $GLACIER_DOWNLOAD_BACKEND $WORLD_TESTING_SUM/$input.checksum || $GLACIER_DOWNLOAD_BACKEND $GALAXY_TESTING_SUM/$input.checksum || $GLACIER_DOWNLOAD_BACKEND $UNIVERSE_TESTING_SUM/$input.checksum || $GLACIER_DOWNLOAD_BACKEND $MULTIVERSE_TESTING_SUM/$input.checksum
			exit 0

			LOCAL_SUM=$(sha256sum $input.tar.gz)

			if [ $input.checksum = $LOCAL_SUM ]; then
				printf "$green [ $check ]$reset Integrity check passed.\n"
				rm $input.checksum
				exit 0
			else
				printf "$red [ $error ]$reset Integrity check failed.\n"
				rm $input.checksum
				exit 1
			fi
		;;
		download)
			$GLACIER_DOWNLOAD_BACKEND $GREPO1/$input.tar.gz || $GLACIER_DOWNLOAD_BACKEND $GREPO2/$input.tar.gz || $GLACIER_DOWNLOAD_BACKEND $GREPO3/$input.tar.gz || $GLACIER_DOWNLOAD_BACKEND $GREPO4/$input.tar.gz || $GLACIER_DOWNLOAD_BACKEND $GREPO5/$input.tar.gz || $GLACIER_DOWNLOAD_BACKEND $GREPO6/$input.tar.gz || $GLACIER_DOWNLOAD_BACKEND $GREPO7/$input.tar.gz || $GLACIER_DOWNLOAD_BACKEND $GREPO8/$input.tar.gz
			exit 0
		;;
		post-install)
			mv -vf -- $input-pkginfo.json /etc/glacier/pkginfo || printf "error in subprocess /usr/bin/gscripts: could not stat $input-pkginfo.json\n" && exit 1
			cd ..
			rm -rf $input || printf "error in subprocess /usr/bin/gscripts: could not remove package source\n" && exit 1
		;;
		-*|--*)
			printf "gscripts - no valid option was passed, see 'help' for details\n"
			exit 1
		;;
	esac
done

printf "gscripts - no option was passed, see 'help' for details\n"