#!/usr/bin/env bash
#
# This script intends to decrease the effort of updating the package.

set -euo pipefail

# Check if running Ubuntu
grep -q Ubuntu /etc/issue
if [[ $? != 0 ]]; then
    echo "System is not running Ubuntu. Cancelling build."
    exit 1
fi

PACKAGE="intellij-idea-community"
DISTRIBUTION="oracular"

last_tag=$(git describe --abbrev=0 --tags)
old="${last_tag#?}"
new="$1"

name="$(git config --get user.name)"
email="$(git config --get user.email)"

git checkout -b version-"$new"

mv "$PACKAGE"_"$old" "$PACKAGE"_"$new"
mv "$PACKAGE"_"$old".orig.tar.gz "$PACKAGE"_"$new".orig.tar.gz

cd "$PACKAGE"_"$new" || exit

# Update the debian/changelog file with dch
NAME="$name" EMAIL="$email" dch \
    --newversion "$new"-1 \
    --distribution "$DISTRIBUTION" \
    "Upstream version $new"

sed -i "s/$old/$new/g" ./debian/preinst
sed -i "s/$old/$new/g" ./debian/postinst

debuild -us -uc

cd ..

rm "$PACKAGE"_"$old"-*