#!/usr/bin/env bash
set -euo pipefail

# Get version from line 5 of manifest.json and subtract 6 from the first number
version_line=$(sed -n '5p' manifest.json)
version=$(echo "$version_line" | grep -oP '"version"\s*:\s*"\K[^"]+')
major=${version%%.*}
major=$((major - 6))
zipname="V${major}.${version#*.}"

zip -r "$zipname.zip" js html css _locales icon manifest.json LICENSE-MIT

echo "Created $zipname.zip"