# Relational pipes

# Copyright © 2020 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_ini_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=(

		"allow-line-continuation-with-escaping"

		"allow-line-continuation-with-space"

		"trim-continuing-lines"

		"allow-sections"

		"allow-section-tags"

		"allow-sub-keys"

		"comment-separators"

		"key-value-separators"

		"quotes"

		"dialect"

		"unescape-basic"

		"unescape-java-properties"

		"unescape-backspace"

	);

	DIALECTS=(

		"java-properties"

		"java-manifest-mf"

	);

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

	elif [[ "$w1" == "--enable-sections"                                ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

	elif [[ "$w1" == "--enable-sub-keys"                                ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

	elif [[ "$w1" == "--enable-comments"                                ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

	elif [[ "$w1" == "--enable-whitespace"                              ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

	elif [[ "$w1" == "--enable-line-numbers"                            ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

	elif [[ "$w1" == "--enable-event-numbers"                           ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

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

	elif [[ "$w2" == "--parser-option" && "$w1" == "allow-line-continuation-with-escaping"    ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

	elif [[ "$w2" == "--parser-option" && "$w1" == "allow-line-continuation-with-space"       ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))

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

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

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

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

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

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

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

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

	elif [[ "$w2" == "--parser-option" && "$w1" == "comment-separators"      && "x$w0" == "x" ]];    then COMPREPLY=("'#;'")

	elif [[ "$w2" == "--parser-option" && "$w1" == "key-value-separators"    && "x$w0" == "x" ]];    then COMPREPLY=("'=:'")

	elif [[ "$w2" == "--parser-option" && "$w1" == "quotes"                  && "x$w0" == "x" ]];    then COMPREPLY=("\$'\"\\''")

	else

		OPTIONS=(

			"--relation"

			"--enable-sections"

			"--enable-sub-keys"

			"--enable-comments"

			"--enable-whitespace"

			"--enable-line-numbers"

			"--enable-event-numbers"

			"--parser-option"

		)

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

	fi

}

complete -F _relpipe_in_ini_completion relpipe-in-ini