#!/bin/bash

#

# help.sh -- This function standardizes the way documentation is

# produced and maintain inside the working copy of CentOS Artwork

# Repository.

#

# 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 help {

    local ACTIONNAM=''

    local ACTIONVAL=''

    local -a ACTIONVALS

    # Initialize the search option. The search option (`--search')

    # specifies the pattern used inside info files when an index

    # search is perform.

    FLAG_SEARCH=""

    # Initialize the backend option. The backend option (`--backend')

    # specifies the backend used to manipulate the repository

    # documentation manual.

    FLAG_BACKEND="docbook"

    # Interpret option arguments passed through the command-line.

    ${FUNCNAM}_getOptions

    # Define manuals base directory. This is the place where

    # documentation manuals base directory structures are stored and

    # organized in.

    MANUAL_BASEDIR="$(cli_getRepoTLDir)/Manuals/$(cli_getRepoName ${FLAG_BACKEND} -d)"

    # Define file name (without extension) for documentation manual.

    MANUAL_NAME=repository

    # Define base name for documentation manual files (without

    # extension). This is the main file name used to build output

    # related files (.info, .pdf, .xml, etc.).

    MANUAL_BASEFILE="${MANUAL_BASEDIR}/${MANUAL_NAME}"

    # Define function configuration directory. The function

    # configuration directory is used to store functionality's related

    # files.

    MANUAL_TEMPLATE=${FUNCDIR}/${FUNCDIRNAM}/Templates

    # Redefine positional parameters using ARGUMENTS. At this point,

    # option arguments have been removed from ARGUMENTS variable and

    # only non-option arguments remain in it. 

    eval set -- "$ARGUMENTS"

    # Verify and initialize backend functions.  There is no need to

    # load all backend-specific functions when we can use just one

    # backend among many. Keep the cli_getFunctions function calling

    # after all variables and arguments definitions.

    if [[ ${FLAG_BACKEND} =~ '^texinfo$' ]];then

        cli_getFunctions "${FUNCDIR}/${FUNCDIRNAM}" 'texinfo'

    elif [[ ${FLAG_BACKEND} =~ '^docbook$' ]];then

        cli_getFunctions "${FUNCDIR}/${FUNCDIRNAM}" 'docbook'

    else

        cli_printMessage "`gettext "The backend provided is not supported."`" --as-error-line

    fi

    # Store remaining arguments into an array. This way it is possible

    # to find out which is the last argument in the list.  When

    # copying files inside the repository, the last argument in the

    # list is considered the target location and all other arguments

    # are considered the source locations. Similary, when renaming

    # files, only two arguments can be passed.

    for ACTIONVAL in "$@";do

        # Sanitate action value.

        cli_checkRepoDirSource

        # Assign sanitated action vlue.

        ACTIONVALS[((++${#ACTIONVALS[*]}))]=$ACTIONVAL

    done

    # Execute backend functionalities. Notice that there are

    # functionalities that need more than one action value in order to

    # be executed (eg.  copying, and renaming) and functionalities

    # that need just one action value to be executed (e.g.,

    # documentation reading and edition). This way, the execution of

    # backend functionalities is splitted here.

    if [[ $ACTIONNAM =~ "${FLAG_BACKEND}_(copy|rename|delete)Entry" ]];then

        # Execute backend action names that may need to use more than

        # one action value.

        ${ACTIONNAM}

    else

        # Execute backend action names that use one action value, only.

        for ACTIONVAL in ${ACTIONVALS[@]};do

            ${FLAG_BACKEND}

        done

    fi

    # Perform language-specific actions when the current language is

    # other but English language.

    if [[ ! $(cli_getCurrentLocale) =~ '^en' ]];then

        # Update translatable strings in related portable objects.

        eval ${CLI_BASEDIR}/${CLI_PROGRAM}.sh locale --update ${MANUAL_BASEFILE}.xhtml --dont-commit-changes

        # Update translatable strings in related portable objects.

        eval ${CLI_BASEDIR}/${CLI_PROGRAM}.sh locale --edit ${MANUAL_BASEFILE}.xhtml

        # Print separator.

        cli_printMessage '-' --as-separator-line

        # Print action message.

        cli_printMessage "${MANUAL_BASEFILE}.xhtml/$(cli_getCurrentLocale)" '--as-updating-line'

        # Render translated versions of the XHTML output files,

        # supressing the rendition output.

        eval ${CLI_BASEDIR}/${CLI_PROGRAM}.sh render ${MANUAL_BASEFILE}.xhtml --dont-commit-changes --quiet

    fi

}