#!/usr/bin/env bash

# Script that imitates `apt autoremove` for zypper as there is no native solution.

package_list=$(LC_ALL=C sudo zypper packages --unneeded)
table_start=$(echo "$package_list" | grep -n "S | Repository | Name"| gawk '{print $1}' FS=":")

unneeded_packages=()
while IFS= read -r package; do
    package="$(echo "$package"| awk -F '|' '{ print $3 }' | xargs -r)"
    unneeded_packages+=("$package")
done < <(echo "$package_list" | tail -n+$((table_start+2)))

unneeded_package_list=$(printf '%s ' "${unneeded_packages[@]}")

if [ -n "$(echo "$unneeded_package_list" | tr -d ' ')" ]; then
    # shellcheck disable=SC2086
    sudo zypper rm -u $unneeded_package_list
else
    echo "No unneeded packages."
fi