#!/bin/bash

#

# conf.sh -- This function standardizes the way images are produced

# from configuration files.

#

# 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 conf {

    # Initialize local variables.

    local MODEL=''

    local -a MODELS

    local FORMAT=''

    local HEIGHT=''

    local FGCOLOR=''

    local BGCOLOR=''

    # Define list with all section names. These are the final file

    # names we want to produce images for.

    local FILENAME=''

    local FILENAMES=$(cli_getConfigSectionNames $TEMPLATE)

    for FILENAME in $FILENAMES;do

        # Retrieve models you want to produce the image from.  Notice

        # that relative path passed in this option must point to one

        # existent file inside the working copy.

        for MODEL in $(cli_getConfigValue "$TEMPLATE" "$FILENAME" "models");do

            MODELS[((++${#MODELS[*]}))]=${TCAR_WORKDIR}/${MODEL}

        done

        # Retrieve formats you want to produce the image for. This

        # variable contains one or more image format supported by

        # ImageMagick.  For example, `xpm', `jpg', 'tiff', etc.

        local FORMATS=$(cli_getConfigValue "$TEMPLATE" "$FILENAME" "formats")

        if [[ -z ${FORMATS} ]];then

            FORMATS="xpm pdf jpg tif"

        fi

        # Retrieve heights you want to produce the image for. This

        # variable contains one or more numerical values. For example,

        # `16', `24', `32', etc.

        local HEIGHTS=$(cli_getConfigValue "$TEMPLATE" "$FILENAME" "heights")

        if [[ -z ${HEIGHTS} ]];then

            HEIGHTS="16 20 22 24 32 36 38 40 48 64 72 78 96 112 124 128 148 164 196 200 512"

        fi

        # Retrieve foreground colors you want to produce the image

        # for. This variable contains one or more color number in

        # hexadecimal format. For example, `000000', `ffffff', etc.

        local FGCOLORS=$(cli_getConfigValue "$TEMPLATE" "$FILENAME" "fgcolors")

        if [[ -z ${FGCOLORS} ]];then

            FGCOLORS="000000"

        fi

        # Retrieve background colors you want to produce the image

        # for. This variable contains one or more color number in

        # hexadecimal format with opacity information included.

        # Opacity is specified between 0.0 and 1.0 where 0.0 is full

        # transparency and 1.0 full opacity. For example, the

        # following values are accepted: `000000-0', `ffffff-1', etc.

        local BGCOLORS=$(cli_getConfigValue "$TEMPLATE" "$FILENAME" "bgcolors") 

        if [[ -z ${BGCOLORS} ]];then

            BGCOLORS="000000-0"

        fi

        # Retrieve command-line you want execute to produce the image.

        # For example, `/usr/bin/convert +append'

        local COMMAND=$(cli_getConfigValue "$TEMPLATE" "$FILENAME" "command") 

        if [[ -z ${COMMAND} ]];then

            COMMAND=/bin/cp

        fi

        for FGCOLOR in $FGCOLORS;do

            # Verify value passed as foreground color.

            cli_checkFiles ${FGCOLOR} --match="^[a-fA-F0-9]{3,6}$"

            for BGCOLOR in $BGCOLORS;do

                # Verify value passed as background color.

                cli_checkFiles ${BGCOLOR} --match="^[a-fA-F0-9]{6}-(0|1)$"

                for HEIGHT in $HEIGHTS;do

                    # Verify value passed as height.

                    cli_checkFiles ${HEIGHT} --match="^[[:digit:]]+$"

                    # Do base rendition actions.

                    conf_setBaseRendition

                done

            done

        done

        # Reset models list to prevent it from growing for each file

        # name (configuration section) iteration and create this way

        # unexpected images as final result.

        unset MODELS

    done

}