#!/bin/sh
# Require curl, html2text

URLs="https://download.kopano.io/community/core%3A/ https://download.kopano.io/community/meet%3A/ https://download.kopano.io/community/webapp%3A/"
HTML2TEXT_BIN="html2text"
HTML2TEXT_OPT="-width 2000"
DISTRI="Debian_10"
ARCH="amd64"
TMPDIR=$(mktemp -d)
LOCALREPODIR="/var/cache/apt-kopano"

echo "Retrieving Source packages..."
for URL in ${URLs} ; do
	TEMPBASH=$(mktemp)
	cat > ${TEMPBASH} << EOF
#!/bin/sh
PACKAGE=\$(curl -s ${URL} | ${HTML2TEXT_BIN} ${HTML2TEXT_OPT} - | awk '\$2 ~ /Debian_10.*(${ARCH}|all)/ {print \$2}')
EOF
	. ${TEMPBASH}
	rm ${TEMPBASH}
	echo "${PACKAGE}"
	if [ -e "${LOCALREPODIR}/list_of_file" ] ; then
		if grep ${PACKAGE} "${LOCALREPODIR}/list_of_file" > /dev/null 2>&1 ; then
			echo "Package already integrated into ${LOCALREPODIR}/repo"
			continue
		fi
	fi
	curl -qo "${TMPDIR}/${PACKAGE}" ${URL}${PACKAGE}
	echo ${PACKAGE} >> "${TMPDIR}/list_of_file"
	if [ -e "${LOCALREPODIR}/list_of_file" ] ; then
		PACKAGE_NAME=$(echo ${PACKAGE} | awk -F'-' '{ print $1 }')
		TEMPBASH=$(mktemp)
		cat > ${TEMPBASH} << EOF
#!/bin/sh
sed -i '/^${PACKAGE_NAME}/d' "${LOCALREPODIR}/list_of_file"
echo ${PACKAGE} >> "${LOCALREPODIR}/list_of_file"
EOF
		sh ${TEMPBASH}
		rm ${TEMPBASH}
	else 
		echo "${PACKAGE}" >> "${LOCALREPODIR}/list_of_file"
	fi
done

echo "Uncompress Source Packages..."
cd "${TMPDIR}"
if [ -e "${TMPDIR}/list_of_file" ] ; then
	cat "${TMPDIR}/list_of_file" | while read file ; do
		tar xf "$file"
	done
else
	echo "Nothing to uncompress..."
fi

echo "Mooving .deb files into ${LOCALREPODIR}..."
mkdir -p "${LOCALREPODIR}/repo/"
find "${TMPDIR}" -type f -name '*.deb' -exec mv {} "${LOCALREPODIR}/repo/" \;

echo "Cleaning old packages..."
LANG="" dpkg-scanpackages /var/cache/apt-kopano/repo 2>&1 >/dev/null | grep -Po '((\/.*?deb)(?=.*?repeat;))|used that.*?\K(\/.*deb)' | xargs -r rm -v

echo "Building Packages file..."
TEMPBASH=$(mktemp)
cat > ${TEMPBASH} << EOF
#!/bin/sh
dpkg-scanpackages "${LOCALREPODIR}/repo" | sed 's@^Filename:.*${LOCALREPODIR}/\(.*\)@Filename: \1@g' > "${LOCALREPODIR}/Packages"
EOF
sh ${TEMPBASH} 2>&1
rm ${TEMPBASH}

rm -r "${TMPDIR}"