#!/bin/bash

#

# render_doThemeActions.sh -- This function performs theme-specific

# rendition.

#

# 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_doThemeActions {

    local -a DIRS

    local DIR=''

    local COUNT=0

    local NEXT_DIR=''

    # Define patterns to know what organization to create inside

    # artistic motifs. Use the design model specified by

    # FLAG_THEME_MODEL as reference.  When rendering, this condition

    # let the artistic motif to be produced using the same

    # organization of its design model. The intersting thing of this

    # configuration is that you can have more than one design models

    # and each one can has its own unique organization.

    local PATTERN=$(cli_getFilesList \

        $(cli_getRepoTLDir)/Identity/Models/Themes/${FLAG_THEME_MODEL}/ \

        --type="d" | egrep -v '\.svn' | sed -r '/^[[:space:]]*$/d' | sed -r \

        "s!^.*/${FLAG_THEME_MODEL}/!!" | tr "\n" '|' \

        | sed -e 's!^|!!' -e 's!|$!!')

    # Define list of renderable directory structures inside the

    # artistic motif. As reference, to build this list, use the theme

    # design model directory structure. Later, reverse the list and

    # filter it using the action value as reference to control what

    # renderable directory structure to produce.

    local RENDERABLE_DIRS=$(\

        cli_getFilesList $(cli_getRepoTLDir)/Identity/Images/Themes \

        --pattern=".+/($PATTERN)$" --type="d" | sort -r \

        | grep "$ACTIONVAL")

    # Rebuild the list of renderable directory structures using an

    # array variable. This let us to predict what directory is one

    # step forward or backward from the current directory structure.

    for DIR in $RENDERABLE_DIRS;do

        DIRS[((++${#DIRS[*]}))]=${DIR}

    done

    # Redefine counter using the greater value to perform an inverted

    # interpretation of the values and so, to process them using the

    # same order.

    if [[ ${#DIRS[*]} -gt 0 ]];then

        COUNT=${#DIRS[*]}

    fi

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

        # Decrement counter to match the correct count value.

        COUNT=$(($COUNT - 1))

        # Redefine action value to refer theme specific renderable

        # directory.

        ACTIONVAL=${DIRS[$COUNT]}

        # Define what is the next directory in the list, so we could

        # verify whether to render or not the current theme specific

        # renderable directory.

        if [[ $COUNT -gt 0 ]];then

            NEXT_DIR=$(dirname ${DIRS[(($COUNT - 1))]})

        else

            NEXT_DIR=''

        fi

        # Verify whether to render or not the current theme renderable

        # directory. This verificatin is required in order to avoid

        # unncessary rendition loops. For example, don't render

        # `path/to/dir/A' when `path/to/dir/A/B' does exist, that

        # configuration would produce `/path/to/dir/A/B twice.

        if [[ $ACTIONVAL =~ '[[:digit:]]$' ]] \

            || [[ $ACTIONVAL == $NEXT_DIR ]];then

            continue

        fi

        # Execute direct rendition on theme specific renderable

        # directory as specified by action value.

        render_doBaseActions

    done

}