#!/usr/bin/env bash

set -o errexit

new_version="${1}"
if [[ -z ${new_version} ]]; then
    exit 1
fi

current_version="$( grep 'version = ' node-daemon/pvcnoded/Daemon.py | awk -F "'" '{ print $2 }' )"
echo "${current_version} -> ${new_version}"

changelog_file=$( mktemp )
echo "# Write the changelog below; comments will be ignored" >> ${changelog_file}
$EDITOR ${changelog_file}

changelog="$( cat ${changelog_file} | grep -v '^#' | sed 's/^*/  */' )"

sed -i "s,version = '${current_version}',version = '${new_version}'," node-daemon/pvcnoded/Daemon.py

readme_tmpdir=$( mktemp -d )
cp README.md ${readme_tmpdir}/
cp docs/index.md ${readme_tmpdir}/
pushd ${readme_tmpdir} &>/dev/null

echo -e "\n#### v${new_version}\n\n${changelog}" >> middle

csplit README.md "/## Changelog/1" &>/dev/null
cat xx00 middle xx01 > README.md
rm xx00 xx01

csplit index.md "/## Changelog/1" &>/dev/null
cat xx00 middle xx01 > index.md
rm xx00 xx01

popd &>/dev/null
mv ${readme_tmpdir}/README.md README.md
mv ${readme_tmpdir}/index.md docs/index.md
rm -r ${readme_tmpdir}

deb_changelog_orig="$( cat debian/changelog )"
deb_changelog_new="pvc (${new_version}-0) unstable urgency=high\n\n${changelog}\n\n -- $( git config --get user.name ) <$( git config --get user.email )>  $( date --rfc-email )\n"

deb_changelog_file=$( mktemp )
echo -e "${deb_changelog_new}" >> ${deb_changelog_file}
echo -e "${deb_changelog_orig}" >> ${deb_changelog_file}
mv ${deb_changelog_file} debian/changelog

git add node-daemon/pvcnoded/Daemon.py README.md docs/index.md debian/changelog
git commit -v

echo
echo "GitLab release message:"
echo
echo "# Parallel Virtual Cluster version ${new_version}"
echo
echo -e "${changelog}" | sed 's/^  \*/*/'
echo