#compdef pixz
# ------------------------------------------------------------------------------
# Copyright (c) 2016 Github zsh-users - http://github.com/zsh-users
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of the zsh-users nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL ZSH-USERS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# ------------------------------------------------------------------------------
# Description
# -----------
#
#  Completion script for pixz a parallel, indexing version of xz. (https://github.com/vasi/pixz).
#
# ------------------------------------------------------------------------------
# Authors
# -------
#
#  * Jindřich Pilař (https://github.com/JindrichPilar)
#
# ------------------------------------------------------------------------------

local -a files index
files=()
index=()

_pixz_compressed_files() {
    files=("${(f)$(ls -l | grep '.tpxz$\|.xz$' | rev | cut -d' ' -f1 | rev)}")
}

_pixz_load_file_index() {
    index=("${(f)$(pixz -l $1)}")
}

_pixz() {

    _arguments -C \
      '(- 1 *)'-h"[Show help and exit]" \
      '(- 1 *)'-l"[List tarball contents very fast]:file:->xzfiles" \
      '(- 1 *)'-x"[Extract one file very fast]:filepath:->filepath" \
      '(- 1 *)'-d"[Decompress]:file:->xzfiles" \
      "-i[Input]:file:->files" \
      "-o[Output]:output:->outputxz" \
      "-p[Use a maximum of NUM CPU-intensive threads]:cpu:->cpus" \
      "-t[Don't assume input is in tar format]" \
      "-k[Keep original input (do not remove it)]" \
      "-e[Use "extreme" compression, which is much slower]" \
      "-f[Set the size of each compression block, relative to the LZMA dictionary size (default is 2.0)]:num" \
      "-q[Set the number of blocks to allocate for the compression queue (default is 1.3 * cores + 2)]:num" \
      '1:inputfile:->files' \
      '2:outputfile' \
      '*: : :->args' \

    case "$state" in
      (cmds)
            _describe -t commands 'commands' commands
      ;;
      (xzfiles)
            _pixz_compressed_files
            _describe -t files 'files' files
      ;;
      (files)
          _files
      ;;
      (cpus)
          local num_cpus cores
          num_cpus=$(nproc)
          cores=()
          for i in {1..$num_cpus}; do
              cores+=($i)
          done
          _describe -t cores 'cores' cores
      ;;
      (filepath)
      ;;
      (*)
      ;;
    esac
}

_pixz