#!/bin/bash

#

# cli_printMessage.sh -- This function standardizes the way messages

# are printed by centos-art.sh script.

#

# Copyright (C) 2009-2013 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_printMessage {

    local MESSAGE="$1"

    local FORMAT="$2"

    # Verify message variable, it cannot have an empty value.

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

        cli_printMessage "`gettext "The message cannot be empty."`" --as-error-line

    fi

    # Define message horizontal width. This is the max number of

    # horizontal characters the message will use to be displayed on

    # the screen.

    local MESSAGE_WIDTH=66

    # Remove empty spaces from message.

    MESSAGE=$(echo $MESSAGE | sed -r -e 's!^[[:space:]]+!!')

    # Print messages that will always be printed no matter what value

    # the FLAG_QUIET variable has.

    case "$FORMAT" in

        --as-stdout-line )

            # Default printing format. This is the format used when no

            # other specification is passed to this function. As

            # convenience, we transform absolute paths into relative

            # paths in order to free horizontal space on final output

            # messages.

            echo "$MESSAGE" | sed -r \

                -e "s!${TCAR_WORKDIR}/!!g" \

                -e "s!> /!> !g" \

                -e "s!/{2,}!/!g" \

                | awk 'BEGIN { FS=": " }

                    { 

                        if ( $0 ~ /^-+$/ )

                            print $0

                        else

                            printf "%-15s\t%s\n", $1, $2

                    }

                    END {}'

            ;;

        --as-error-line )

            # Define where the error was originated inside the

            # centos-art.sh script. Print out the function name and

            # line from the caller.

            local ORIGIN="$(caller 1 | gawk '{ print $2 " L." $1 }')"

            # Build the error message.

            cli_printMessage "${CLI_NAME} (${ORIGIN}):" --as-stdout-line

            cli_printMessage "${MESSAGE}" --as-response-line

            cli_printMessage "${CLI_FUNCNAME}" --as-toknowmore-line

            # Finish script execution with exit status 1 (SIGHUP) to

            # imply the script finished because an error.  We are

            # using this as convention to finish the script execution.

            # So, don't remove the following line, please.

            exit 1

            ;;

        --as-toknowmore-line )

            cli_printMessage '-' --as-separator-line

            cli_printMessage "`gettext "To know more, run"` ${CLI_NAME} ${MESSAGE} --help" --as-stdout-line

            cli_printMessage '-' --as-separator-line

            ;;

        --as-yesornorequest-line )

            # Define positive answer.

            local Y="`gettext "yes"`"

            # Define negative answer.

            local N="`gettext "no"`"

            # Define default answer.

            local ANSWER=${N}

            if [[ $FLAG_ANSWER == 'true' ]];then

                ANSWER=${Y}

            else

                # Print the question to standard error.

                cli_printMessage "$MESSAGE [${Y}/${N}]" --as-request-line

                # Redefine default answer based on user's input.

                read ANSWER

            fi

            # Verify user's answer. Only positive answer let the

            # script flow to continue. Otherwise, if something

            # different from positive answer is passed, the script

            # terminates its execution immediately.

            if [[ ! ${ANSWER} =~ "^${Y}" ]];then

                exit

            fi

            ;;

        --as-selection-line )

            # Create selection based on message.

            local NAME=''

            select NAME in ${MESSAGE};do

                echo $NAME

                break

            done

            ;;

        --as-response-line )

            cli_printMessage "--> $MESSAGE" --as-stdout-line

            ;;

        --as-request-line )

            cli_printMessage "${MESSAGE}:\040" --as-notrailingnew-line

            ;;

        --as-notrailingnew-line )

            echo -e -n "${MESSAGE}" | sed -r \

                -e "s!${TCAR_WORKDIR}/!!g"

            ;;

        --as-stderr-line )

            echo "$MESSAGE" | sed -r \

                -e "s!${TCAR_WORKDIR}/!!g" 1>&2

            ;;

    esac

    # Verify verbose option. The verbose option controls whether

    # messages are printed or not.

    if [[ "$FLAG_QUIET" == 'true' ]];then

        return

    fi

    # Print messages that will be printed only when the FLAG_QUIET

    # variable is provided to centos-art.sh script.

    case "$FORMAT" in

        --as-separator-line )

            # Build the separator line.

            MESSAGE=$(\

                until [[ $MESSAGE_WIDTH -eq 0 ]];do

                    echo -n "$(echo $MESSAGE | sed -r 's!(.).*!\1!')"

                    MESSAGE_WIDTH=$(($MESSAGE_WIDTH - 1))

                done)

            # Draw the separator line.

            echo "$MESSAGE"

            ;;

        --as-banner-line )

            cli_printMessage '-' --as-separator-line

            cli_printMessage "$MESSAGE" --as-stdout-line

            cli_printMessage '-' --as-separator-line

            ;;

        --as-processing-line )

            cli_printMessage "`gettext "Processing"`: $MESSAGE" --as-stdout-line

            ;;

        --as-cropping-line )

            cli_printMessage "`gettext "Cropping from"`: $MESSAGE" --as-stdout-line

            ;;

        --as-tuningup-line )

            cli_printMessage "`gettext "Tuning-up"`: $MESSAGE" --as-stdout-line

            ;;

        --as-checking-line )

            cli_printMessage "`gettext "Checking"`: $MESSAGE" --as-stdout-line

            ;;

        --as-combining-line )

            cli_printMessage "`gettext "Combining"`: $MESSAGE" --as-stdout-line

            ;;

        --as-creating-line | --as-updating-line )

            if [[ -a "$MESSAGE" ]];then

                cli_printMessage "`gettext "Updating"`: $MESSAGE" --as-stdout-line

            else

                cli_printMessage "`gettext "Creating"`: $MESSAGE" --as-stdout-line

            fi

            ;;

        --as-deleting-line )

            cli_printMessage "`gettext "Deleting"`: $MESSAGE" --as-stdout-line

            ;;

        --as-reading-line )

            cli_printMessage "`gettext "Reading"`: $MESSAGE" --as-stdout-line

            ;;

        --as-savedas-line )

            cli_printMessage "`gettext "Saved as"`: $MESSAGE" --as-stdout-line

            ;;

        --as-linkto-line )

            cli_printMessage "`gettext "Linked to"`: $MESSAGE" --as-stdout-line

            ;;

        --as-movedto-line )

            cli_printMessage "`gettext "Moved to"`: $MESSAGE" --as-stdout-line

            ;;

        --as-translation-line )

            cli_printMessage "`gettext "Translation"`: $MESSAGE" --as-stdout-line

            ;;

        --as-validating-line )

            cli_printMessage "`gettext "Validating"`: $MESSAGE" --as-stdout-line

            ;;

        --as-template-line )

            cli_printMessage "`gettext "Template"`: $MESSAGE" --as-stdout-line

            ;;

        --as-configuration-line )

            cli_printMessage "`gettext "Configuration"`: $MESSAGE" --as-stdout-line

            ;;

        --as-palette-line )

            cli_printMessage "`gettext "Palette"`: $MESSAGE" --as-stdout-line

            ;;

        --as-inkscape-line )

            cli_printMessage "$MESSAGE" --as-stdout-line

            ;;

    esac

}