#! /usr/bin/env dash

# shellcheck source=/dev/null
SHELL_LIBRARY_VERSION="1.1.3" . %SHELL_LIBRARY_PATH

# Option '-f' disables pathname expansion which can be useful when $f, $fs, and
# $fx variables contain names with '*' or '?' characters. However, this option
# is used selectively within individual commands as it can be limiting at
# times.
set -f

archivers="$(tmp 'echo "gzip xz 7z zip"')";

prompt "Archive name: "
name=""
while [ -z "$name" ] || [ -e "$name" ]
do
  read -r name
  if [ -e "$name" ]; then
    prompt "Archive already exists, overwrite [y|N]: "
    read -r ans

    if [ "$ans" = "y" ]; then
      break
    else
      prompt "Archive name: "
    fi
  fi
done

root="$(if [ "$(pwd)" = "/" ]; then pwd; else echo "$(pwd)/";fi)";

# fx contains all selected file name separated by a newline
while read -r raw_file; do
    file="$(echo "$raw_file" | sed "s|$root||")";
    set -- "$@" "$file";
done < "$(tmp "echo '$fx'")";

case "$(awk '{for (i=1; i<=NF; i++) print $i}' "$archivers" | fzf)" in
    "gzip")
        tar -czf "$name".tar.gz "$@"
        ;;
    "xz")
        tar -cf "$name".tar "$@"
        xz -z -9 -e -T0 "$name".tar
        ;;
    "7z")
        7z a "$name".7z "$@"
        ;;
    "zip")
        zip --symlinks -r "$name".zip "$@"
        ;;
esac
# vim: ft=sh