#!/bin/bash

#

# cli_printActionPreamble -- This function standardizes action

# preamble messages. Action preamble messages provides a confirmation

# message that illustrate what files will be affected in the action.

#

# Generally, actions are applied to parent directories. Each parent

# directory has parallel directories associated. If one parent

# directory is created/deleted, the parallel directories associated do

# need to be created/deleted too.

#

# 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 {

    local FILES="$1"

    # Verify amount of files to process. If there is no one then there

    # is nothing else to do here.

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

        return

    fi

    local ACTION="$2"

    local FORMAT="$3"

    local FILE=''

    local NEGATIVE=''

    local POSITIVE=''

    local COUNT=0

    # Replace spaces by new line.

    FILES=$(echo "$FILES" | sed -r "s! +!\n!g")

    # Redefine total number of directories.

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

    # Redefine preamble messages based on action. At this point seems

    # to be some files to process so lets read ACTION to know what to

    # do with them.

    case $ACTION in

        'doCreate' )

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

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

            else

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

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

            fi

            ;;

        'doDelete' )

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

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

            else

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

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

            fi

            ;;

        'doLocale' )

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

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

            else

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

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

            fi

            ;;

        'doEdit' )

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

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

            else

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

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

            fi

            ;;

        * )

            # Check list of files to process.  If we have an empty

            # list of files, inform about that and stop the script

            # execution.  Otherwise, check all files in the list to be

            # sure they are regular files.

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

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

            fi

            ;;

    esac

    # Print preamble message.

    if [[ $POSITIVE != '' ]] &&  [[ $NEGATIVE == '' ]];then

        cli_printMessage "$POSITIVE"

        for FILE in $FILES;do

            cli_printMessage "$FILE $FORMAT"

        done

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

    elif [[ $POSITIVE == '' ]] &&  [[ $NEGATIVE != '' ]];then

        cli_printMessage "$NEGATIVE" --as-error-line

    fi

}