#!/bin/bash

#

# cli_printActionPreamble -- This function standardizes the way

# preamble messages are printed out. Preamble messages are used before

# actions (e.g., file elimination, edition, creation, actualization,

# etc.) and provide a way for the user to control whether the action

# is performed or not.

#

# 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 cli_printActionPreamble {

    # Define short options.

    local ARGSS=''

    # Define long options.

    local ARGSL='to-create,to-delete,to-locale,to-edit'

    # Initialize arguments with an empty value and set it as local

    # variable to this function scope.

    local ARGUMENTS=''

    # Initialize message.

    local MESSAGE=''

    # Initialize message options.

    local OPTION=''

    # Initialize file variable as local to avoid conflicts outside.

    # We'll use the file variable later, to show the list of files

    # that will be affected by the action.

    local FILE=''

    # Redefine ARGUMENTS variable using current positional parameters. 

    cli_doParseArgumentsReDef "$@"

    # Redefine ARGUMENTS variable using getopt output.

    cli_doParseArguments

    # Redefine positional parameters using ARGUMENTS variable.

    eval set -- "$ARGUMENTS"

    # Define the location we want to apply verifications to.

    local FILES=$(echo $@ | sed -r 's!^.*--[[:space:]](.+)$!\1!')

    # Initialize counter with total number of files.

    local COUNT=$(echo $FILES | wc -l)

    # Look for options passed through positional parameters.

    while true;do

        case "$1" in

            --to-create )

                if [[ $FILES == '--' ]];then

                    MESSAGE="`gettext "There is no entry to create."`"

                    OPTION='--as-error-line'

                else

                    MESSAGE="`ngettext "The following entry will be created" \

                        "The following entries will be created" $COUNT`:"

                    OPTION=''

                fi

                shift 2

                break

                ;;

            --to-delete )

                if [[ $FILES == '--' ]];then

                    MESSAGE="`gettext "There is no file to delete."`"

                    OPTION='--as-error-line'

                else

                    MESSAGE="`ngettext "The following entry will be deleted" \

                        "The following entries will be deleted" $COUNT`:"

                    OPTION=''

                fi

                shift 2

                break

                ;;

            --to-locale )

                if [[ $FILES == '--' ]];then

                    MESSAGE="`gettext "There is no file to locale."`"

                    OPTION='--as-error-line'

                else

                    MESSAGE="`ngettext "Translatable strings will be retrived from the following entry" \

                        "Translatable strings will be retrived from the following entries" $COUNT`:"

                    OPTION=''

                fi

                shift 2

                break

                ;;

            --to-edit )

                if [[ $FILES == '--' ]];then

                    MESSAGE="`gettext "There is no file to edit."`"

                    OPTION='--as-error-line'

                else

                    MESSAGE="`ngettext "The following file will be edited" \

                        "The following files will be edited" $COUNT`:"

                    OPTION=''

                fi

                shift 2

                break

                ;;

            -- )

                if [[ $FILES == '--' ]];then

                    MESSAGE="`gettext "There is no file to process."`"

                    OPTION='--as-error-line'

                else

                    MESSAGE="`ngettext "The following file will be processed" \

                        "The following files will be processed" $COUNT`:"

                    OPTION=''

                fi

                shift 1

                break

                ;;

        esac

    done

    # Print out the preamble message.

    cli_printMessage "${MESSAGE}" "${OPTION}" 

    for FILE in $FILES;do

        cli_printMessage "$FILE" --as-response-line

    done

    cli_printMessage "`gettext "Do you want to continue"`" --as-yesornorequest-line

}