#!/bin/sh

name="untar"
version="1.0"
help_message=$(/usr/bin/cat <<-EOF
	Wrapper around 'tar' for easier decompression
	Usage: untar TARGET [..] [OPTIONS]
	Options:
	 -h, --help     print this message and exit
	 -q, --quiet    suppress error messages
	 -v, --version  print version number and exit
EOF
)

. /usr/local/lib/myminiparse.sh

# error if no directory names given
if [ "$#" -eq 0 ]; then
  (>&2 /usr/bin/printf "Usage: untar TARGET [OPTIONS]\n")
  exit 1
elif [ "$#" -eq 1 ] && [ "$quiet" -eq 1 ]; then
  exit 1
fi

# main routine
code=0
for target; do
  if [ ! -f "$target" ]; then
    if [ "$quiet" -eq 0 ]; then
      (>&2 printf "%s: No such file '%s'\n" "$name" "$target")
    fi
    code=1
  else
    case "$target" in
    *tar)
      if ! /usr/bin/tar -xf "$target"; then
        code=1
      fi
      ;;

    *tar.gpg)
      if ! /usr/bin/gpg -d "$target" | /usr/bin/tar -x; then
        code=1
      fi
      ;;

    *tar.gz)
      if ! /usr/bin/tar -xzf "$target"; then
        code=1
      fi
      ;;

    *tar.gz.gpg)
      if ! /usr/bin/gpg -d "$target" | /usr/bin/tar -xz; then
        code=1
      fi
      ;;

    *tar.xz)
      if ! /usr/bin/tar -xJf "$target"; then
        code=1
      fi
      ;;

    *tar.xz.gpg)
      if ! /usr/bin/gpg -d "$target" | /usr/bin/tar -xJ; then
        code=1
      fi
      ;;

    *tar.zst)
      if ! /usr/bin/tar --zstd -xf "$target"; then
        code=1
      fi
      ;;

    *tar.zst.gpg)
      if ! /usr/bin/gpg -d "$target" | /usr/bin/tar --zstd -x; then
        code=1
      fi
      ;;

    *tar.bz2)
      if ! /usr/bin/tar -xjf "$target"; then
        code=1
      fi
      ;;

    *tar.bz2.gpg)
      if ! /usr/bin/gpg -d "$target" | /usr/bin/tar -xj; then
        code=1
      fi
      ;;

    *)
      if ! /usr/bin/tar -xf "$target"; then
        code=1
      fi
      ;;
    esac
  fi
done

exit "$code"