#!/bin/bash

#

# render_doBaseActions.sh -- This function performs base-rendition

# action for all 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 render_doBaseActions {

    local -a FILES

    local FILE=''

    local OUTPUT=''

    local TEMPLATE=''

    local TEMPLATES=''

    local PARENTDIR=''

    local TRANSLATION=''

    local EXTERNALFILE=''

    local EXTERNALFILES=''

    local THIS_FILE_DIR=''

    local NEXT_FILE_DIR=''

    local RENDER_EXTENSION=''

    local EXPORTID=''

    local COUNT=0

    # Verify default directory where design models are stored in.

    cli_checkFiles -e "${TCAR_WORKDIR}/Identity/Models/Themes/${FLAG_THEME_MODEL}"

    # Redefine parent directory for current workplace.

    PARENTDIR=$(basename "${ACTIONVAL}")

    # Loop through list of supported file extensions. 

    for RENDER_EXTENSION in ${RENDER_EXTENSIONS};do

        # Redefine rendition format name based on supported file

        # extension.

        if [[ $RENDER_EXTENSION =~ '^(svgz|svg)$' ]];then

            RENDER_FORMAT='svg'

        elif [[ $RENDER_EXTENSION =~ '^(docbook)$' ]];then

            RENDER_FORMAT='docbook'

        elif [[ $RENDER_EXTENSION =~ '^(conf)$' ]];then

            RENDER_FORMAT='conf'

        else

           cli_printMessage "`eval_gettext "The \\\"\\\$RENDER_EXTENSION\\\" file extension is not supported yet."`" --as-error-line 

        fi

        # Redefine specific function export id. 

        EXPORTID="${CLI_FUNCDIRNAM}/$(cli_getRepoName ${RENDER_FORMAT} -d)/$(cli_getRepoName ${RENDER_FORMAT} -f)"

        # Define base location of template files using paths passed to

        # centos-art.sh script as argument to.

        render_getDirTemplate

        # Define the list of files to process. Use an array variable

        # to store the list of files to process. This make possible to

        # realize verifications like: is the current base directory

        # equal to the next one in the list of files to process?

        # Questions like this let us to know when centos-art.sh is

        # leaving a directory structure and entering another. This

        # information is required in order for centos-art.sh to know

        # when to apply last-rendition actions.

        #

        # Another issue is that some directories might be named as if

        # they were files (e.g., using a render able extension like

        # .docbook).  In these situations we need to avoid such

        # directories from being interpreted as a render able file.

        # For this, pass the `--type="f"' option when building the

        # list of files to process in order to retrieve regular files

        # only.

        #

        # Another issue to consider here is that, in some cases, both

        # templates and outputs might be in the same location. In

        # these cases localized content are stored in the same

        # location where template files are retrieved from and we need

        # to avoid using localized content from being interpreted as

        # design models. In that sake, build the list of files to

        # process using the files directly stored in the directory

        # passed as argument to centos-art.sh command-line. Don't go

        # recursively here.

        #

        # Another issue to consider here, is the way of restricting

        # the list of files to process. We cannot expand the pattern

        # specified by FLAG_FILTER with a `.*' here (e.g.,

        # "${FLAG_FILTER}.*\.${RENDER_EXTENSION}") because that would

        # suppress any possibility from the user to specify just one

        # file name in locations where more than one file with the

        # same name as prefix exists (e.g., `repository.docbook',

        # `repository-preamble.docbook' and

        # `repository-parts.docbook').  Instead, pass filtering

        # control to the user whom can use regular expression markup

        # in the `--filter' option to decide whether to match

        # `repository.docbook' only (e.g., through

        # `--filter="repository"') or `repository-preamble.docbook'

        # and `repository-parts.docbook' but not `repository.docbook'

        # (e.g., through `--filter="repository-.*"').

        if [[ ${RENDER_FORMAT} =~ "^docbook$" ]];then

            # When the render format is docbook, don't build a list of

            # files to process. Instead, build the absolute path of

            # the main file used to render docbook from models to

            # final output manuals. This file must be stored directly

            # inside the main manual's directory and named as it but

            # with all letters in lowercase.

            for FILE in $(cli_getFilesList ${TEMPLATE} \

                --maxdepth="1" --mindepth="1" \

                --pattern="^.*$(cli_getRepoName ${TEMPLATE} -f)\.${RENDER_EXTENSION}$" \

                --type="f");do

                FILES[((++${#FILES[*]}))]=$FILE

            done

        else

            # For all other cases, build a list of files to process

            # using the path value pass as argument.

            for FILE in $(cli_getFilesList ${TEMPLATE} \

                --pattern="^/.*${FLAG_FILTER}\.${RENDER_EXTENSION}$" \

                --type="f");do

                FILES[((++${#FILES[*]}))]=$FILE

            done

        fi

        # Verify list of files to process. Assuming no file was found,

        # evaluate the next supported file extension.

        if [[ ${#FILES[*]} -eq 0 ]];then

            continue

        fi

        # Initialize format-specific functionalities.

        cli_exportFunctions "${EXPORTID}"

        # Start processing the base rendition list of FILES. Fun part

        # approaching :-).

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

            # Define base file.

            FILE=${FILES[$COUNT]}

            # Define the base directory path for the current file being

            # process.

            THIS_FILE_DIR=$(dirname ${FILES[$COUNT]})

            # Define the base directory path for the next file that will

            # be process.

            if [[ $(($COUNT + 1)) -lt ${#FILES[*]} ]];then

                NEXT_FILE_DIR=$(dirname ${FILES[$(($COUNT + 1))]})

            else

                NEXT_FILE_DIR=''

            fi

            # Print separator line.

            cli_printMessage '-' --as-separator-line

            # Verify design models file existence. We cannot continue

            # with out it.

            cli_checkFiles ${FILE} -f

            # Print action message.

            cli_printMessage "${FILE}" --as-template-line

            # Define final location of output directory.

            render_getDirOutput

            # Define final location of translation file.

            TRANSLATION=$(dirname ${FILE} \

               | sed -r 's!(Documentation|Identity)!Locales/\1!')/${CLI_LANG_LC}/messages.po

            # Define final location of template file.

            TEMPLATE=${FILE}

            # Get relative path to file. The path string (stored in

            # FILE) has two parts: 1. the variable path and 2. the

            # common path.  The variable path is before the common

            # point in the path string. The common path is after the

            # common point in the path string. The common point is the

            # name of the parent directory (stored in PARENTDIR).

            #

            # Identity/Models/Themes/.../Firstboot/3/splash-small.svg

            # -------------------------^| the     |^------------^

            # variable path             | common  |    common path

            # -------------------------v| point   |    v------------v

            # Identity/Images/Themes/.../Firstboot/Img/3/splash-small.png

            #

            # What we do here is remove the variable path, the common

            # point, and the file extension parts in the string

            # holding the path retrieved from design models directory

            # structure.  Then we use the common path as relative path

            # to store the final image file.

            #

            # The file extension is removed from the common path

            # because it is set when we create the final image file.

            # This configuration let us use different extensions for

            # the same file name.

            #

            # When we render using base-rendition action, the

            # structure of files under the output directory will be

            # the same used after the common point in the related

            # design model directory structure.

            FILE=$(echo ${FILE} \

                | sed -r "s!.*${PARENTDIR}/!!" \

                | sed -r "s/\.${RENDER_EXTENSION}$//")

            # Define absolute path to final file (without extension).

            FILE=${OUTPUT}/$(basename "${FILE}")

            # Define instance name from design model.

            INSTANCE=$(cli_getTemporalFile ${TEMPLATE})

            # Perform format base-rendition.

            ${RENDER_FORMAT}

            # Remove template instance. 

            if [[ -f $INSTANCE ]];then

                rm $INSTANCE

            fi

            # Increment file counter.

            COUNT=$(($COUNT + 1))

        done

        # Reset counter to prevent accumulation of values.

        COUNT=0

        # Unset format-specific functionalities.

        cli_unsetFunctions "${EXPORTID}"

        # Unset files list to prevent accumulation of values.

        unset FILES

    done

}