#!/bin/bash

#

# help_getOptions.sh -- This function interpretes arguments passed to

# `manual' functionality and calls actions accordingly.

#

# Copyright (C) 2009, 2010, 2011 The CentOS Project

#

# 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; either version 2 of the License, or (at

# your option) any later version.

#

# 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, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function help_getOptions {

    # Define short options we want to support.

    local ARGSS=""

    # Define long options we want to support.

    local ARGSL="quiet,answer-yes,dont-commit-changes,read,search:,edit,update,copy,delete,rename,backend:"

    # Parse arguments using getopt(1) command parser.

    cli_parseArguments

    # Reset positional parameters using output from (getopt) argument

    # parser.

    eval set -- "$ARGUMENTS"

    # Define default action for help functionality.  This is, the

    # action performed when no non-option argument is passed to

    # `centos-art.sh' script command-line internface.

    if [[ $# -le 1 ]];then

        /usr/bin/info --node="Top" --file=${MANUAL_BASEFILE}.info.bz2

        exit

    fi

    # Define action to take for each option passed.

    while true; do

        case "$1" in

            --quiet )

                FLAG_QUIET="true"

                FLAG_DONT_COMMIT_CHANGES="true"

                shift 1

                ;;

            --answer-yes )

                FLAG_ANSWER="true"

                shift 1

                ;;

            --dont-commit-changes )

                FLAG_DONT_COMMIT_CHANGES="true"

                shift 1

                ;;

            --search )

                ACTIONNAM="searchIndex"

                FLAG_SEARCH="$2"

                shift 2

                ;;

            --edit )

                ACTIONNAM="editEntry"

                shift 1

                ;;

            --copy )

                ACTIONNAM="copyEntry"

                shift 1

                ;;

            --delete )

                ACTIONNAM="deleteEntry"

                shift 1

                ;;

            --rename )

                ACTIONNAM="renameEntry"

                shift 1

                ;;

            --update )

                ACTIONNAM="updateOutputFiles"

                shift 1

                ;;

            --read )

                ACTIONNAM="searchNode"

                shift 1

                ;;

            --backend )

                FLAG_BACKEND=$(cli_getRepoName ${2} -f)

                shift 2

                ;;

            -- )

                # Remove the `--' argument from the list of arguments

                # in order for processing non-option arguments

                # correctly. At this point all option arguments have

                # been processed already but the `--' argument still

                # remains to mark ending of option arguments and

                # begining of non-option arguments. The `--' argument

                # needs to be removed here in order to avoid

                # centos-art.sh script to process it as a path inside

                # the repository, which obviously is not.

                shift 1

                break

                ;;

        esac

    done

    # Redefine name of function directory to point the module

    # specified by `--backend' option.

    FUNCDIRNAM="$(cli_getRepoName ${FUNCNAM} -d)/Backends/$(cli_getRepoName ${FLAG_BACKEND} -d)"

    # Redefine action name using function name.  From this point on,

    # control is given to modules. No function outside modules can be

    # loaded from now on. If you need to execute one, then you can't

    # use the FUNCNAM variable for that. Instead, use the full name of

    # the function (e.g., help_getEntry).

    ACTIONNAM="${FLAG_BACKEND}_${ACTIONNAM}"

    # Verify action name. It is required that the action name

    # specified does have a definition file. Otherwise it is a action

    # name valid, but not supported yet (e.g., it needs to be

    # written).

    if [[ ! -f ${FUNCDIR}/${FUNCDIRNAM}/${ACTIONNAM}.sh ]];then

        cli_printMessage "`gettext "The action provided is not supported yet."`" --as-error-line

    fi

    # Redefine ARGUMENTS variable using current positional parameters. 

    cli_parseArgumentsReDef "$@"

}