# papirus-folders completion
#
# @author: Sergei Eremenko (https://github.com/SmartFinn)
# @license: MIT license (MIT)
# @link: https://github.com/PapirusDevelopmentTeam/papirus-folders

__get_colors() {
	if ! command -v papirus-folders >/dev/null; then
		return 1
	fi

	papirus-folders -l | tr -d '>\n'
}

__get_themes() {
	local data_dir icons_dir icon_theme
	local -a data_dirs=()
	local -a icons_dirs=(
		"$HOME/.icons"
		"${XDG_DATA_HOME:-$HOME/.local/share}/icons"
	)

	# Get data directories from XDG_DATA_DIRS variable and
	# convert colon-separated list into bash array
	IFS=: read -ra data_dirs <<< "${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"

	for data_dir in "${data_dirs[@]}"; do
		[ -d "$data_dir/icons" ] || continue
		icons_dirs=( "${icons_dirs[@]}" "${data_dir%/}/icons" )
	done

	for icons_dir in "${icons_dirs[@]}"; do
		for icon_theme in "$icons_dir"/*; do
			[ -f "$icon_theme/48x48/places/folder-blue.svg" ] || continue
			printf '%s\n' "${icon_theme##*/}"
		done
	done
	return
}

_papirus_folders() {
	local cur prev
	local -a colors=( $(__get_colors) )
	local -a opts=(
		-h --help
		-V --version
		-v --verbose
		-C --color
		-D --default
		-R --restore
		-l --list
		-o --once
		-t --theme
		-u --update-caches
	)

	_get_comp_words_by_ref cur prev

	case "$prev" in
		-C|--color)
			COMPREPLY=( $(compgen -W "${colors[*]}" -- "${cur}") )
			return
			;;
		-t|--theme)
			COMPREPLY=( $(compgen -W "$(__get_themes)" -- "${cur}") )
			;;
		*)
			COMPREPLY=( $(compgen -W "${opts[*]}" -- "${cur}") )
			;;
	esac
}

complete -F _papirus_folders papirus-folders

# ex: ts=4 sw=4 filetype=sh