# Relational pipes

# Copyright © 2021 František Kučera (Frantovo.cz, GlobalCode.info)

#

# 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, version 3 of the License.

#

# 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/>.

_relpipe_in_asn1_completion() {

	local w0 w1 w2 w3

	COMPREPLY=()

	w0=${COMP_WORDS[COMP_CWORD]}

	w1=${COMP_WORDS[COMP_CWORD-1]}

	w2=${COMP_WORDS[COMP_CWORD-2]}

	w3=${COMP_WORDS[COMP_CWORD-3]}

	BOOLEAN_VALUES=(

		"true"

		"false"

	)

	# TODO: introspection: after moving to alt2xml the available options and their values should be provided by the parser

	PARSER_OPTIONS=(

		"encoding"

		"parse-encapsulated"

		"tree-style"

		"tree-with-namespaces"

		"root-name"

	);

	ENCODINGS=(

		"BER"

		"DER"

		"CER"

		"PER"

		"XER"

		"ASN.1"

	);

	MODES=(

		"relpipe"

		"freeform"

	);

	if   [[ "$w1" == "--relation"                      && "x$w0" == "x" ]];    then COMPREPLY=("''")

	elif [[ "$w1" == "--mode"                                           ]];    then COMPREPLY=($(compgen -W "${MODES[*]}" -- "$w0"))

	elif [[ "$w1" == "--parser-option"                                  ]];    then COMPREPLY=($(compgen -W "${PARSER_OPTIONS[*]}" -- "$w0"))

	elif [[ "$w2" == "--parser-option" && "$w1" == "encoding"                                 ]];    then COMPREPLY=($(compgen -W "${ENCODINGS[*]}" -- "$w0"))

	elif [[ "$w2" == "--parser-option" && "$w1" == "parse-encapsulated"                       ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

	else

		OPTIONS=(

			"--relation"

			"--mode"

			"--parser-option"

		)

		COMPREPLY=($(compgen -W "${OPTIONS[*]}" -- "$w0"))

	fi

}

complete -F _relpipe_in_asn1_completion relpipe-in-asn1