#!/bin/bash

#

# cli_checkFiles.sh -- This function standardizes file verifications

# inside centos-art.sh script.  If file verification fails in anyway,

# centos-art.sh script complains about it and ends up script

# execution.

#

# Usage:

#

# cli_checkFiles FILE [TYPE]

#

# Copyright (C) 2009, 2010 Alain Reguera Delgado

# 

# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307

# USA.

# 

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function cli_checkFiles {

    # Get absolute path to file/directory.

    local FILE="$1"

    # Get verification type.

    local TYPE="$2"

    # Initialize message output.

    local MESSAGE=''

    # Check number of paramaters passed to cli_checkFiles function. At

    # least one argument should be passed.

    if [[ $# -lt 1 ]];then

        cli_printMessage "cli_checkFiles: `gettext "You need to provide one argument at least."`" 'AsErrorLine'

        cli_printMessage "$(caller)" "AsToKnowMoreLine"

    fi

    # Check value passed as file to cli_checkFiles function. The file

    # value cannot be empty.

    if [[ $FILE == '' ]];then

        cli_printMessage "cli_checkFiles: `gettext "The first argument cannot be empty."`" 'AsErrorLine'

        cli_printMessage "$(caller)" "AsToKnowMoreLine"

    fi

    # Perform file verification using FILE and TYPE variables.

    case $TYPE in

        d | directory )

            # File exists and is a directory

            if [[ ! -d $FILE ]];then

                cli_printMessage "`eval_gettext "The directory \\\"\\\$FILE\\\" doesn't exist."`"

                cli_printMessage "`gettext "Do you want to create it now?"`" 'AsYesOrNoRequestLine'

                mkdir -p $FILE

            fi

            ;;

        f | regular-file )

            # File exists and is a regular file.

            if [[ ! -f $FILE ]];then

                MESSAGE="`eval_gettext "The file \\\"\\\$FILE\\\" is not a regular file."`"

            fi

            ;;

        h | symbolic-link )

            # File exists and is a symbolic link.

            if [[ ! -h $FILE ]];then

                MESSAGE="`eval_gettext "The file \\\"\\\$FILE\\\" is not a symbolic link."`"

            fi

            ;;

        x | execution )

            # To exist, file should be executable.

            if [[ ! -x $FILE ]];then

                MESSAGE="`eval_gettext "The file \\\"\\\$FILE\\\" is not executable."`"

            fi

            ;;

        fh )

            # To exist, file should be a regular file or a symbolic link.

            if [[ ! -f $FILE ]];then

                if [[ ! -h $FILE ]];then

                    MESSAGE="`eval_gettext "The path \\\"\\\$FILE\\\" doesn't exist."`"

                fi

            fi

            ;;

        fd )

            # To exist, file should be a regular file or a directory.

            if [[ ! -f $FILE ]];then

                if [[ ! -d $FILE ]];then

                    MESSAGE="`eval_gettext "The path \\\"\\\$FILE\\\" doesn't exist."`"

                fi

            fi

            ;;

        * )

            # File exists.

            if [[ ! -a $FILE ]];then

                MESSAGE="`eval_gettext "The path \\\"\\\$FILE\\\" doesn't exist."`"

            fi

    esac

    # If file verification fails in anyway, output message information

    # and end up script execution. Otherwise, continue with script

    # normal flow.

    if [[ "$MESSAGE" != '' ]];then

        cli_printMessage "$MESSAGE" "AsErrorLine"

        cli_printMessage "$(caller)" "AsToKnowMoreLine"

    fi

}