# bash completion for lynis

# version 1.0.1 (2019-07-13)
# Michael Boelen <michael.boelen@cisofy.com>

# lynis(8) completion
_lynis()
{
    local cur prev
    # opts nodig nosig

    COMPREPLY=()
    _get_comp_words_by_ref cur prev words

    if [ $COMP_CWORD -eq 1 ]; then
        # first parameter on line
        case $cur in
            -*)
                COMPREPLY=( $( compgen -W '--help --info --version' -- "$cur" ) )
                ;;
            *)
                COMPREPLY=( $( compgen -W 'audit generate show' -- "$cur" ) )
                ;;
        esac
        return 0
    elif [ $COMP_CWORD -eq 4 ]; then
        # Stop after some specifics
        if [ "${COMP_WORDS[1]}" = "show" -a "${COMP_WORDS[2]}" = "details" ]; then
            return 0
        fi
    fi

    # Check previous argument to share the available options
    case $prev in
        audit)
            COMPREPLY=( $( compgen -W 'dockerfile system ' -- "$cur" ) )
            ;;

        show)
            COMPREPLY=( $( compgen -W 'categories changelog commands dbdir details environment eol groups help hostids includedir language license logfile man options os pidfile plugindir profiles release releasedate report settings tests  version workdir ' -- "$cur" ) )
            ;;

        # Related items to show (lynis show XYZ)
        categories)
            return 0
            ;;
        changelog)
            return 0
            ;;
        commands)
            return 0
            ;;
        dbdir)
            return 0
            ;;
        details)
            local dbfile=""
            local dirs="/data/development/lynis /usr/local/lynis /usr/share/lynis"
            for d in ${dirs}; do
                if [ -f "${d}/db/tests.db" ]; then
                    local dbfile="/data/development/lynis/db/tests.db"
                fi
            done
            if [ -f "${dbfile}" ]; then
                local suggestions=($(compgen -W "$(awk -F: '$1 ~ /^[A-Z]/ {print $1}' ${dbfile})" -- "${cur}"))
                COMPREPLY=("${suggestions[@]}")
            else
                COMPREPLY=($(compgen -W "TEST-1234" -- "$cur"))
            fi
            ;;
        environment)
            return 0
            ;;
        eol)
            return 0
            ;;
        groups)
            return 0
            ;;
        help)
            return 0
            ;;
        hostids)
            if [ "${COMP_WORDS[1]}" = "generate" -a "${COMP_WORDS[2]}" = "hostids" ]; then
                COMPREPLY=($(compgen -W "save" -- "$cur"))
            else
                return 0
            fi
            ;;
        includedir)
            return 0
            ;;
        language)
            return 0
            ;;
        license)
            return 0
            ;;
        logfile)
            return 0
            ;;
        man)
            return 0
            ;;
        options)
            return 0
            ;;
        os)
            return 0
            ;;
        pidfile)
            return 0
            ;;
        plugindir)
            return 0
            ;;
        profiles)
            return 0
            ;;
        release)
            return 0
            ;;
        releasedate)
            return 0
            ;;
        report)
            return 0
            ;;
        settings)
            return 0
            ;;
        tests)
            return 0
            ;;
        version)
            return 0
            ;;
        workdir)
            return 0
            ;;

        generate)
            COMPREPLY=( $( compgen -W 'hostids ' -- "$cur" ) )
            ;;

        # Options
        --auditor)
            COMPREPLY=( '"Mr. Auditor"' )
            #return 0
            ;;
        --check-update|--help|--info|--version)
            # all other options are noop with this command
            return 0
            ;;
        --logfile)
            COMPREPLY=( 'myfile.log' )
            return 0
            ;;
        --plugin-dir)
            _filedir -d
            return 0
            ;;
        --profile)
            COMPREPLY=( 'default.prf' )
            return 0
            ;;
        --tests)
            COMPREPLY=( '"TEST-0001 TEST-0002 TEST-0003"' )
            return 0
            ;;
        --tests-from-category)
            COMPREPLY=( '"performance privacy security"' )
            return 0
            ;;
        --tests-from-groups)
            COMPREPLY=( '"accounting authentication"' )
            return 0
            ;;
        *)
            COMPREPLY=( $( compgen -W ' \
                --auditor --cronjob --debug --quick --quiet --logfile --no-colors --no-log --pentest --reverse-colors \
                --tests --tests-from-category --tests-from-group --upload --verbose --slow-warning' -- "$cur" ) )
            ;;
    esac

    return 0
}

complete -F _lynis lynis

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