# shellcheck shell=bash
# ==========================================================================
#         ____            _                     _____           _
#        / ___| _   _ ___| |_ ___ _ __ ___     |_   _|__   ___ | |___
#        \___ \| | | / __| __/ _ \ '_ ` _ \ _____| |/ _ \ / _ \| / __|
#         ___) | |_| \__ \ ||  __/ | | | | |_____| | (_) | (_) | \__ \
#        |____/ \__, |___/\__\___|_| |_| |_|     |_|\___/ \___/|_|___/
#               |___/
#                             --- System-Tools ---
#                  https://www.nntb.no/~dreibh/system-tools/
# ==========================================================================
#
# GIMP Scripts
# Copyright (C) 2013-2026 by Thomas Dreibholz
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# Contact: thomas.dreibholz@gmail.com


# ###### Bash completion for gs-mosaic ######################################
_gs_mosaic()
{
   # Based on: https://www.benningtons.net/index.php/bash-completion/
   local cur prev words cword
   if type -t _comp_initialize >/dev/null; then
      _comp_initialize || return
   elif type -t _init_completion >/dev/null; then
      _init_completion || return
   else
      # Manual initialization for older bash completion versions:
      COMPREPLY=()
      cur="${COMP_WORDS[COMP_CWORD]}"
      # shellcheck disable=SC2034
      prev="${COMP_WORDS[COMP_CWORD-1]}"
      # shellcheck disable=SC2034,SC2124
      words="${COMP_WORDS[@]}"
      # shellcheck disable=SC2034
      cword="${COMP_CWORD}"
   fi

   if [ "${cword}" -eq 1 ] ; then
      _filedir '@(jpeg|jpg|JPG|png|PNG|dng|DNG|cr2|CR2|gif|GIF|webp|pdf)'
      return
   elif [ "${cword}" -eq 2 ] ; then
      _filedir
      return
   else
      case "${prev}" in
         #  ====== Special value: tile-type =================================
         -T | --tile-type)
            mapfile -t COMPREPLY < <(compgen -W "triangles squares hexagons octagons" --  "${cur}")
            return
            ;;
         #  ====== Special value: tile-surface ==============================
         -F | --tile-surface)
            mapfile -t COMPREPLY < <(compgen -W "smooth rough" --  "${cur}")
            return
            ;;
         #  ====== On or off ================================================
         -G | --color-averaging | \
         -A | --antialiasing    | \
         -I | --tile-allow-split)
            mapfile -t COMPREPLY < <(compgen -W "on off" --  "${cur}")
            return
            ;;
         #  ====== Generic value ============================================
         -S | --tile-size       | \
         -H | --tile-height     | \
         -N | --tile-neatness   | \
         -X | --tile-spacing    | \
         -C | --color-variation | \
         -L | --light-direction)
            return
            ;;
      esac
   fi

   # ====== All options =====================================================
   local opts="
-T
--tile-type
-S
--tile-size
-H
--tile-height
-N
--tile-neatness
-F
--tile-surface
-X
--tile-spacing
-I
--tile-allow-split
-C
--color-variation
-G
--color-averaging
-A
--antialiasing
-L
--light-direction
-q
--quiet
-w
--verbose
-h
--help
-v
--version
"
   mapfile -t COMPREPLY < <(compgen -W "${opts}" -- "${cur}" )
   return 0
}

complete -F _gs_mosaic gs-mosaic
