#!/bin/bash

# mage upgrade

# some default vars
: ${MLIBDIR=/usr/lib/mage}
: ${DEBUG=false}
: ${AUTOANSWER=false}

source /etc/mage.rc
source ${MLIBDIR}/mage3.functions.sh

unset UPGRADE_LIST
unset PLEASE_VALIDATE

# get list
for directory in ${INSTALLDB}/*
do
	# supress virtuals and fake packages or files
	x=$(basename ${directory})
	if [ ${x} = fake ] ||
		[ ${x} = virtual ] ||
		[ ${x} = virtuals ] ||
		[ ${x} = virtuals.old ] ||
		[ ! -d ${directory} ]
	then
		continue
	fi

	for package in ${directory}/*
	do
		x=$(basename ${package})
		PNAME=${x%-*-*}
		PVER=$(echo ${x#${PNAME}-}| cut -d- -f1)
		PBUILD=$(echo ${x#${PNAME}-}| cut -d- -f2)
		PCAT=$(basename $(dirname ${package}))

		# check if there is any higher version in mage db

		#needed packages may have ben renamed ??
		if [ -d ${MAGEDIR}/${PCAT}/${PNAME} ]
		then
			CATEGORIE=${PCAT} MAGENAME=${PNAME} get_highest_magefile

			#compare them
			if [[ $(basename ${HIGHEST_MAGEFILE} .mage) > ${PNAME}-${PVER}-${PBUILD} ]]
			then
				UPGRADE_LIST="${UPGRADE_LIST} ${PNAME}"
			else
				# put them only on PLEASE_VALIDATE if they are not the same package
				if [[ $(basename ${HIGHEST_MAGEFILE} .mage) != ${PNAME}-${PVER}-${PBUILD} ]]
				then
					echo "Not added: ${PNAME}-${PVER}-${PBUILD} is newer than $(basename ${HIGHEST_MAGEFILE} .mage)."
					PLEASE_VALIDATE="${PLEASE_VALIDATE} ${PNAME}-${PVER}-${PBUILD}"
				fi
			fi
		fi

		#unset some vars for shure
		unset x
		unset PNAME
		unset PVER
		unset PBUILD
		unset PCAT
		unset CATEGORIE
		unset MAGENAME
		unset HIGHEST_MAGEFILE
	done
done

unset package directory

echo
echo "I'm now ready to upgrade your system."
echo "Press any key to continue or [CTRL-C] to abort ..."
echo
read

#now run the update
for package in ${UPGRADE_LIST}
do
	/sbin/mage install ${package} || exit 1
	if [[ ${DEBUG} = true ]]
	then
		echo "Installation of ${package} completed."
		echo "Press any key to continue ..."
		read
	fi

	if [[ ${AUTOANSWER} = true ]]
	then
		yes | MAGE_UNINSTALL_TIMEOUT=0 /sbin/mage uninstall ${package} || exit 1
	else
		MAGE_UNINSTALL_TIMEOUT=0 /sbin/mage uninstall ${package} || exit 1
	fi
	
	if [[ ${DEBUG} = true ]]
	then
		echo "Uninstallation of ${package} completed."
		echo "Press any key to continue ..."
		read
	fi
	
	#resource /etc/profile
	source /etc/profile
done

echo "The system upgrade is now complete."
echo -n "Would you like to see the list of ignored packages ? [ y/n ] "
read answer
if [[ ${answer} = y ]]
then
	echo
	for i in ${PLEASE_VALIDATE}
	do
		echo "avoided: ${i}"
	done
fi

echo
echo "Please remember to run etc-update to update your config files."
echo "You should also source /etc/profile or re-login to your shell."
echo