# 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-bumpmap #####################################
_gs_bumpmap()
{
   # 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 "${prev}" in
         #  ====== On or off ================================================
         -C | --compensate-darkening | \
         -I | --invert               | \
         -T | --tiled)
            mapfile -t COMPREPLY < <(compgen -W "on off" --  "${cur}")
            return
            ;;
         # ====== Hue range =================================================
         -H | --hue-range)
            mapfile -t COMPREPLY < <(compgen -W "all red yellow green cyan blue magenta" -- "${cur}")
            return
            ;;
         #  ====== Generic value ============================================
         -A | --azimuth    | \
         -E | --elevation  | \
         -D | --depth      | \
         -X | --offset-x   | \
         -Y | --offset-y   | \
         -W | --waterlevel | \
         -B | --ambient    | \
         -O | --hue-offset | \
         -L | --lightness  | \
         -S | --saturation | \
         -V | --overlap)
            return
            ;;
      esac
   fi

   # ====== All options =====================================================
   local opts="
-C
--compensate-darkening
-I
--invert
-T
--tiled
-A
--azimuth
-E
--elevation
-D
--depth
-X
--offset-x
-Y
--offset-y
-W
--waterlevel
-B
--ambient
-H
--hue-range
-O
--hue-offset
-L
--lightness
-S
--saturation
-V
--overlap
-q
--quiet
-w
--verbose
-h
--help
-v
--version
"
   mapfile -t COMPREPLY < <(compgen -W "${opts}" -- "${cur}" )
   return 0
}

complete -F _gs_bumpmap gs-bumpmap
