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# This file is part of systemd.
#
# Copyright 2010 Ran Benita
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# systemd 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 Lesser General Public License
# along with systemd; If not, see <http://www.gnu.org/licenses/>.

__contains_word () {
        local w word=$1; shift
        for w in "$@"; do
                [[ $w = "$word" ]] && return
        done
}

_timedatectl() {
        local i verb comps cur prev
        _get_comp_words_by_ref cur prev
        local OPTS='-h --help --version --adjust-system-clock --no-pager
                    --no-ask-password -H --host'

        if __contains_word "$prev" $OPTS; then
                case $prev in
                        --host|-H)
                                comps=''
                        ;;
                esac
                COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
                return 0
        fi

        if [[ $cur = -* ]]; then
                COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
                return 0
        fi

        local VERBS_BOOLEAN='set-local-rtc set-ntp'
        local VERBS_STANDALONE='status set-time list-timezones'
        local VERBS_TIMEZONES='set-timezone'
        local VERBS_TIME='set-time'
        local VERBS="$VERBS_BOOLEAN $VERBS_STANDALONE $VERBS_TIMEZONES $VERBS_TIME"

        for ((i=0; i < COMP_CWORD; i++)); do
                if __contains_word "${COMP_WORDS[i]}" $VERBS; then
                        verb=${COMP_WORDS[i]}
                        break
                fi
        done

        if [[ -z $verb ]]; then
                comps=$VERBS
        elif __contains_word "$verb" $VERBS_BOOLEAN; then
                comps='true false'
        elif __contains_word "$verb" $VERBS_TIMEZONES; then
                comps=$(command timedatectl list-timezones)
        elif __contains_word "$verb" $VERBS_STANDALONE $VERBS_TIME; then
                comps=''
        fi

        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
        return 0
}
complete -F _timedatectl timedatectl