#!/bin/bash

#

# render_doDm.sh -- This function collects Display Manager (DM)

# required files and creates a tar.gz package that groups them all

# together. Use this function as last-rendition action for Gdm and Kdm

# base-rendition actions.

#

# Usage:

#

# ACTIONS[1]='LAST:renderDm:TYPE:RESOLUTION'

#

# Where:

#

# TYPE can be either `Gdm' or `Kdm'. These values correspond to the

# directory names used to store related design models.

#

# RESOLUTION represents the screen resolution tar.gz files are

# produced for (e.g., 800x600, 1024x768, 2048x1536, etc.). 

#

# In order to produce tar.gz files correctly, both screen resolution

# definition inside pre-rendition configuration script and background

# name inside theme directory structure need to match one another.  If

# one screen resolution is defined correctly, but there is no

# background information for it, the related tar.gz file is not

# produced and the next file in the list of files to process is

# evaluated.

#

# 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 render_doDm {

    local -a SRC

    local -a DST

    local DM=''

    local TGZ=''

    local COUNT=0

    local RESOLUTION=''

    local RESOLUTIONS=''

    # Print separator line.

    cli_printMessage '-' 'AsSeparatorLine'

    # Get display manager passed from render.conf.sh pre-rendition

    # configuration script.

    DM=$(render_getConfigOption "${ACTION}" '2')

    # Sanitate display manager passed from render.conf.sh

    # pre-rendition configuration script. Whatever value be retrived

    # as display manager configuration option is converted to

    # uppercase in order to match either Gdm or Kdm design model

    # directory structures.

    DM=$(cli_getRepoName "$DM" 'd')

    # Get screen resolutions passed from render.conf.sh pre-rendition

    # configuration script.

    RESOLUTIONS=$(render_getConfigOption "${ACTION}" '3')

    # Check screen resolutions passed from render.conf.sh

    # pre-rendition configuration script.

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

        cli_printMessage "`gettext "There is no resolution information to process."`" 'AsErrorLine'

        cli_printMessage "${FUNCDIRNAM}" "AsToKnowMoreLine"

    fi

    # Define source files using absolute paths.

    SRC[0]=$(cli_getRepoTLDir)/Identity/Images/Brands/centos-symbol-resized-48.png

    SRC[1]=${OUTPUT}/release.png

    SRC[2]=${OUTPUT}/screenshot.png

    SRC[3]=$(dirname $TEMPLATE)/GdmGreeterTheme.xml

    SRC[4]=$(dirname $TEMPLATE)/GdmGreeterTheme.desktop

    SRC[5]=$(cli_getRepoTLDir)/Identity/Images/Themes/$(cli_getPathComponent '--theme')/Backgrounds/Img/Png

    SRC[6]=$(dirname $TEMPLATE)/icon-language.png

    SRC[7]=$(dirname $TEMPLATE)/icon-reboot.png

    SRC[8]=$(dirname $TEMPLATE)/icon-session.png

    SRC[9]=$(dirname $TEMPLATE)/icon-shutdown.png

    # Define name used as temporal holder to build tar.gz file. 

    TGZ=$(cli_getPathComponent '--theme-name')

    # Define target files using relative paths.

    DST[0]=${TGZ}/centos-symbol.png

    DST[1]=${TGZ}/centos-release.png

    DST[2]=${TGZ}/screenshot.png

    DST[3]=${TGZ}/${TGZ}.xml

    DST[4]=${TGZ}/GdmGreeterTheme.desktop

    DST[5]=${TGZ}/background.png

    DST[6]=${TGZ}/icon-language.png

    DST[7]=${TGZ}/icon-reboot.png

    DST[8]=${TGZ}/icon-session.png

    DST[9]=${TGZ}/icon-shutdown.png

    # Move into the working directory.

    pushd ${OUTPUT} > /dev/null

    # Create directory used as temporal holder to build tar.gz file.

    if [[ ! -d ${TGZ} ]];then

        mkdir ${TGZ}

    fi

    for RESOLUTION in $RESOLUTIONS;do

        while [[ $COUNT -lt ${#SRC[*]} ]];do

            if [[ $COUNT -eq 5 ]];then

                # Redefine background information using resolution as

                # reference. Avoid concatenation.

                SRC[$COUNT]=$(echo "${SRC[$COUNT]}" | cut -d/ -f-13)/${RESOLUTION}-final.png

                # If background information defined inside

                # pre-rendition configuration script doesn't match

                # background information inside theme-specific

                # backgrounds directory structure, try the next

                # background definition.

                if [[ ! -f ${SRC[$COUNT]} ]];then

                    continue 2

                fi

            elif [[ $COUNT =~ '^[6-9]$' ]];then

                # If display manager is Kdm, then increment counter and

                # resume the next iteration. Icons aren't used on Kdm,

                # so there's no need to have them inside it.

                if [[ $DM =~ '^Kdm$' ]];then

                    COUNT=$(($COUNT + 1))

                    continue

                fi

            fi

            # Check existence of source files.

            cli_checkFiles ${SRC[$COUNT]}

            # Copy files from source to target location.

            cp ${SRC[$COUNT]} ${DST[$COUNT]}

            # Replace common translation markers from design model

            # files with appropriate information.

            if [[ $COUNT =~ '^(3|4)$'  ]];then

                cli_replaceTMarkers "${DST[$COUNT]}"

            fi

            # Increment counter.

            COUNT=$(($COUNT + 1))

        done

        # Reset counter.

        COUNT=0

        # Print action message.

        cli_printMessage "${OUTPUT}/${RESOLUTION}.tar.gz" "AsCreatingLine"

        # Create tar.gz file.

        tar -czf "${RESOLUTION}.tar.gz" $TGZ

    done

    # Remove directory used as temporal holder to build targ.gz

    # file.

    rm -r $TGZ

    # Remove release-specific images.

    cli_printMessage "${SRC[1]}" "AsDeletingLine"

    rm ${SRC[1]}

    cli_printMessage "${SRC[2]}" "AsDeletingLine"

    rm ${SRC[2]}

    # Return to where we were initially.

    popd > /dev/null

}