<?php
/**
 * $Id$
 *
 * KnowledgeTree Community Edition
 * Document Management Made Simple
 * Copyright (C) 2008, 2009 KnowledgeTree Inc.
 * 
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 3 as published by the
 * Free Software Foundation.
 * 
 * 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, see <http://www.gnu.org/licenses/>.
 * 
 * You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco, 
 * California 94120-7775, or email info@knowledgetree.com.
 * 
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU General Public License version 3.
 * 
 * In accordance with Section 7(b) of the GNU General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * KnowledgeTree" logo and retain the original copyright notice. If the display of the 
 * logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
 * must display the words "Powered by KnowledgeTree" and retain the original 
 * copyright notice.
 * Contributor( s): ______________________________________
 *
 */

require_once('../config/dmsDefaults.php');
require_once(KT_LIB_DIR . '/config/config.inc.php');
require_once(KT_LIB_DIR . '/browse/browseutil.inc.php');

$oConfig =& KTConfig::getSingleton();
$fsPath = $oConfig->get('urls/documentRoot');

$aIgnore = array(
    '.', '..',
    'CVS',
    '.empty',
    '.htaccess',
    '.cvsignore',
);

$aFoldersToRemove = array();
$aFilesToRemove = array();
$aRepoDocumentProblems = array();
$aRepoFolderProblems = array();
$aRepoVersionProblems = array();

function checkFileVersion($path, $version) {
    $fod = KTBrowseUtil::folderOrDocument($path);
    if ($fod === false) {
        // No document by that name, so no point checking version
        // information.
        return;
    }
    return true;
}

function checkFile($path, $first = true) {
    $pattern = "/^(.*)-((?:\d+)\.(?:\d+))$/";
    if (preg_match($pattern, $path, $matches)) {
        if (checkFileVersion($matches[1], $matches[2])) {
            // If it's a version, then don't check for full path
            // below...
            return;
        }
    }
    $fod = KTBrowseUtil::folderOrDocument($path);
    if ($fod === false) {
        $GLOBALS['aFilesToRemove'][] = $path;
        return;
    }
}

function checkDirectory($path) {
    global $fsPath, $aIgnore;
    $fullpath = sprintf('%s/%s', $fsPath, $path);

    if (!is_dir($fullpath)) {
        print "Not a directory: $fullpath\n";
    }

    if ($path === '/Deleted') {
        // Deleted files handled separately.
        return;
    }

    if (!empty($path)) {
        $fod = KTBrowseUtil::folderOrDocument($path);
        if ($fod === false) {
            $GLOBALS['aFoldersToRemove'][] = $path;
            return;
        }
    }
    
    $dh = @opendir($fullpath);
    if ($dh === false) {
        print "Could not open directory: $fullpath\n";
    }
    while (($filename = readdir($dh)) !== false) {
        if (in_array($filename, $aIgnore)) { continue; }
        $subrelpath = sprintf('%s/%s', $path, $filename);
        $subfullpath = sprintf('%s/%s', $fsPath, $subrelpath);
        if (is_dir($subfullpath)) {
            checkDirectory($subrelpath);
        }
        if (is_file($subfullpath)) {
            checkFile($subrelpath);
        }
    }
}

function checkRepoFolder($oFolder) {
    global $fsPath, $aRepoFolderProblems;
    $sFolderPath = sprintf('%s/%s', $oFolder->getFullPath(), $oFolder->getName());
    $sFullPath = sprintf('%s/%s', $fsPath, $sFolderPath);
    if (!is_dir($sFullPath)) {
        $aRepoFolderProblems[] = $sFolderPath;
    }
}

function checkRepoDocument($oDocument) {
    global $fsPath, $aRepoDocumentProblems;
    $sDocumentPath = $oDocument->getStoragePath();
    $sFullPath = sprintf('%s/%s', $fsPath, $sDocumentPath);
    if (!is_file($sFullPath)) {
        $aRepoDocumentProblems[] = $sDocumentPath;
    }
    checkRepoVersions($oDocument);
}

function checkRepoVersions($oDocument) {
    global $fsPath, $aRepoVersionProblems;
    $table = 'document_transactions';
    $aVersions = DBUtil::getResultArrayKey(array("SELECT DISTINCT version FROM $table WHERE document_id = ?", array($oDocument->getID())), 'version');
    foreach($aVersions as $sVersion) {
        if ($sVersion == $oDocument->getVersion()) {
            continue;
        }
        $sDocumentPath = $oDocument->getStoragePath();
        $sFullPath = sprintf('%s/%s-%s', $fsPath, $sDocumentPath, $sVersion);
        if (!is_file($sFullPath)) {
            $aRepoVersionProblems[] = array($sDocumentPath, $sVersion);
            continue;
        }
    }
}

checkDirectory('');

print "\n";
print "Would remove these folders (and all their contents):\n";
foreach ($aFoldersToRemove as $path) {
    print "\t$path\n";
}
print "\n";
print "Would remove these files:\n";
foreach ($aFilesToRemove as $path) {
    print "\t$path\n";
}
print "\n";

$aFolders =& Folder::getList();
foreach ($aFolders as $oFolder) {
    checkRepoFolder($oFolder);
}

print "These folders are not on the filesystem:\n";
foreach ($aRepoFolderProblems as $path) {
    print "\t$path\n";
}

$aDocuments =& Document::getList(array('status_id = ?', array(LIVE)));
foreach ($aDocuments as $oDocument) {
    checkRepoDocument($oDocument);
}
print "\n";

print "These documents are not on the filesystem:\n";
foreach ($aRepoDocumentProblems as $path) {
    print "\t$path\n";
}
print "\n";

print "These documents have versions not on the filesystem:\n";
foreach ($aRepoVersionProblems as $path) {
    list($path, $version) = $path;
    print "\t$path - version $version\n";
}
print "\n";