<?php
//    MyDMS. Document Management System
//    Copyright (C) 2002-2005  Markus Westphal
//    Copyright (C) 2006-2008 Malcolm Cowe
//    Copyright (C) 2010 Matteo Lucarelli
//
//    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.

include("../inc/inc.Settings.php");
include("../inc/inc.ClassAccess.php");
include("../inc/inc.ClassDMS.php");
include("../inc/inc.ClassEmail.php");
include("../inc/inc.DBAccess.php");
include("../inc/inc.DBInit.php");
include("../inc/inc.FileUtils.php");
include("../inc/inc.Utils.php");
include("../inc/inc.Language.php");
include("../inc/inc.ClassUI.php");
include("../inc/inc.Authentication.php");

if (!isset($_POST["documentid"]) || !is_numeric($_POST["documentid"]) || intval($_POST["documentid"])<1) {
	UI::exitError(getMLText("document_title", array("documentname" => getMLText("invalid_doc_id"))),getMLText("invalid_doc_id"));
}
$documentid = $_POST["documentid"];
$document = $dms->getDocument($documentid);

if (!is_object($document)) {
	UI::exitError(getMLText("document_title", array("documentname" => getMLText("invalid_doc_id"))),getMLText("invalid_doc_id"));
}

if ($document->getAccessMode($user) < M_READ) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("access_denied"));
}

if (!isset($_POST["version"]) || !is_numeric($_POST["version"]) || intval($_POST["version"])<1) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("invalid_version"));
}

$version = $_POST["version"];
$content = $document->getContentByVersion($version);

if (!is_object($content)) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("invalid_version"));
}

// operation is admitted only for last deocument version
$latestContent = $document->getLatestContent();
if ($latestContent->getVersion()!=$version) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("invalid_version"));
}
// verify if document has expired
if ($document->hasExpired()){
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("access_denied"));
}

if (!isset($_POST["reviewStatus"]) || !is_numeric($_POST["reviewStatus"]) ||
		(intval($_POST["reviewStatus"])!=1 && intval($_POST["reviewStatus"])!=-1)) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("invalid_review_status"));
}

// retrieve the review status for the current user.
$reviewStatus = $user->getReviewStatus($documentid, $version);
if (count($reviewStatus["indstatus"]) == 0 && count($reviewStatus["grpstatus"]) == 0) {
	UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("access_denied"));
}

if ($_POST["reviewType"] == "ind") {

	$indReviewer = true;
	if (count($reviewStatus["indstatus"])==0) {
		UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("access_denied"));
	}
	if ($reviewStatus["indstatus"][0]["status"]==-2) {
		UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("access_denied"));
	}

	// User is eligible to make this update.

	$comment = sanitizeString($_POST["comment"]);
	$queryStr = "INSERT INTO `tblDocumentReviewLog` (`reviewID`, `status`, `comment`, `date`, `userID`) ".
		"VALUES ('". $reviewStatus["indstatus"][0]["reviewID"] ."', '".
		$_POST["reviewStatus"] ."', '". $comment ."', NOW(), '". $user->getID() ."')";
	$res=$db->getResult($queryStr);
	if (is_bool($res) && !res) {
		UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("review_update_failed"));
	}
	else {
		// Send an email notification to the document updater.
		$subject = $settings->_siteName.": ".$document->getName().", v.".$version." - ".getMLText("review_submit_email");
		$message = getMLText("review_submit_email")."\r\n";
		$message .= 
			getMLText("name").": ".$document->getName()."\r\n".
			getMLText("version").": ".$version."\r\n".
			getMLText("user").": ".$user->getFullName()." <". $user->getEmail() .">\r\n".
			getMLText("status").": ".getReviewStatusText($_POST["reviewStatus"])."\r\n".
			getMLText("comment").": ".$comment."\r\n".
			"URL: http".((isset($_SERVER['HTTPS']) && (strcmp($_SERVER['HTTPS'],'off')!=0)) ? "s" : "")."://".$_SERVER['HTTP_HOST'].$settings->_httpRoot."out/out.ViewDocument.php?documentid=".$documentid."\r\n";

		$subject=mydmsDecodeString($subject);
		$message=mydmsDecodeString($message);
		
		LetoDMS_Email::toIndividual($user, $content->getUser(), $subject, $message);
		
		// Send notification to subscribers.
		$nl=$document->getNotifyList();
		LetoDMS_Email::toList($user, $nl["users"], $subject, $message);
		foreach ($nl["groups"] as $grp) {
			LetoDMS_Email::toGroup($user, $grp, $subject, $message);
		}
	}
}
else if ($_POST["reviewType"] == "grp") {
	$grpReviewer=false;
	foreach ($reviewStatus["grpstatus"] as $gs) {
		if ($_POST["reviewGroup"] == $gs["required"]) {
			if ($gs["status"]==-2) {
				UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("access_denied"));
			}
			$grpStatus=$gs;
			$grpReviewer=true;
			break;
		}
	}
	if (!$grpReviewer) {
		UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("access_denied"));
	}

	// User is eligible to make this update.

	$comment = sanitizeString($_POST["comment"]);
	$queryStr = "INSERT INTO `tblDocumentReviewLog` (`reviewID`, `status`, `comment`, `date`, `userID`) ".
		"VALUES ('". $grpStatus["reviewID"] ."', '".
		$_POST["reviewStatus"] ."', '". $comment ."', NOW(), '". $user->getID() ."')";
	$res=$db->getResult($queryStr);
	if (is_bool($res) && !res) {
		UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("review_update_failed"));
	}
	else {
		// Send an email notification to the document updater.
		$grp = $dms->getGroup($grpStatus["required"]);
		
		$subject = $settings->_siteName.": ".$document->getName().", v.".$version." - ".getMLText("review_submit_email");
		$message = getMLText("review_submit_email")."\r\n";
		$message .= 
			getMLText("name").": ".$document->getName()."\r\n".
			getMLText("user").": ".$user->getFullName()." <". $user->getEmail() .">\r\n".
			getMLText("version").": ".$version."\r\n".
			getMLText("status").": ".getReviewStatusText($_POST["reviewStatus"])."\r\n".
			getMLText("comment").": ".$comment."\r\n".
			"URL: http".((isset($_SERVER['HTTPS']) && (strcmp($_SERVER['HTTPS'],'off')!=0)) ? "s" : "")."://".$_SERVER['HTTP_HOST'].$settings->_httpRoot."out/out.ViewDocument.php?documentid=".$documentid."\r\n";

		$subject=mydmsDecodeString($subject);
		$message=mydmsDecodeString($message);
		
		LetoDMS_Email::toIndividual($user, $content->getUser(), $subject, $message);
		
		// Send notification to subscribers.
		$nl=$document->getNotifyList();
		LetoDMS_Email::toList($user, $nl["users"], $subject, $message);
		foreach ($nl["groups"] as $grp) {
			LetoDMS_Email::toGroup($user, $grp, $subject, $message);
		}
	}
}

//
// Check to see if the overall status for the document version needs to be
// updated.
//

if ($_POST["reviewStatus"]==-1){

	if($content->setStatus(S_REJECTED,$comment,$user)) {
		$nl=$document->getNotifyList();
		// Send notification to subscribers.
		if($notifier) {
			$folder = $document->getFolder();
			$subject = "###SITENAME###: ".$document->_name." - ".getMLText("document_status_changed_email");
			$message = getMLText("document_status_changed_email")."\r\n";
			$message .= 
				getMLText("document").": ".$document->_name."\r\n".
				getMLText("status").": ".getOverallStatusText($status)."\r\n".
				getMLText("folder").": ".$folder->getFolderPathPlain()."\r\n".
				getMLText("comment").": ".$document->getComment()."\r\n".
				"URL: ###URL_PREFIX###out/out.ViewDocument.php?documentid=".$document->getID()."&version=".$content->_version."\r\n";

			$subject=mydmsDecodeString($subject);
			$message=mydmsDecodeString($message);
			
			$notifier->toList($user, $nl["users"], $subject, $message);
			foreach ($nl["groups"] as $grp) {
				$notifier->toGroup($user, $grp, $subject, $message);
			}
		}
		
		// TODO: if user os not owner send notification to owner
	}

}else{

	$docReviewStatus = $content->getReviewStatus(true);
	if (is_bool($docReviewStatus) && !$docReviewStatus) {
		UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("cannot_retrieve_review_snapshot"));
	}
	$reviewCT = 0;
	$reviewTotal = 0;
	foreach ($docReviewStatus as $drstat) {
		if ($drstat["status"] == 1) {
			$reviewCT++;
		}
		if ($drstat["status"] != -2) {
			$reviewTotal++;
		}
	}
	// If all reviews have been received and there are no rejections, retrieve a
	// count of the approvals required for this document.
	if ($reviewCT == $reviewTotal) {
		$docApprovalStatus = $content->getApprovalStatus(true);
		if (is_bool($docApprovalStatus) && !$docApprovalStatus) {
			UI::exitError(getMLText("document_title", array("documentname" => $document->getName())),getMLText("cannot_retrieve_approval_snapshot"));
		}
		$approvalCT = 0;
		$approvalTotal = 0;
		foreach ($docApprovalStatus as $dastat) {
			if ($dastat["status"] == 1) {
				$approvalCT++;
			}
			if ($dastat["status"] != -2) {
				$approvalTotal++;
			}
		}
		// If the approvals received is less than the approvals total, then
		// change status to pending approval.
		if ($approvalCT<$approvalTotal) {
			$newStatus=1;
		}
		else {
			// Otherwise, change the status to released.
			$newStatus=2;
		}
		if ($content->setStatus($newStatus, getMLText("automatic_status_update"), $user)) {
			// Send notification to subscribers.
			$nl=$document->getNotifyList();
			if($notifier) {
				$folder = $document->getFolder();
				$subject = "###SITENAME###: ".$document->_name." - ".getMLText("document_status_changed_email");
				$message = getMLText("document_status_changed_email")."\r\n";
				$message .= 
					getMLText("document").": ".$document->_name."\r\n".
					getMLText("status").": ".getOverallStatusText($status)."\r\n".
					getMLText("folder").": ".$folder->getFolderPathPlain()."\r\n".
					getMLText("comment").": ".$document->getComment()."\r\n".
					"URL: ###URL_PREFIX###out/out.ViewDocument.php?documentid=".$document->getID()."&version=".$content->_version."\r\n";

				$subject=mydmsDecodeString($subject);
				$message=mydmsDecodeString($message);
				
				$notifier->toList($user, $nl["users"], $subject, $message);
				foreach ($nl["groups"] as $grp) {
					$notifier->toGroup($user, $grp, $subject, $message);
				}
			}
			
			// TODO: if user os not owner send notification to owner

			// Notify approvers, if necessary.
			if ($newStatus == S_DRAFT_APP) {
				$requestUser = $document->getOwner();
				
				$subject = $settings->_siteName.": ".$document->getName().", v.".$version." - ".getMLText("approval_request_email");
				$message = getMLText("approval_request_email")."\r\n";
				$message .= 
					getMLText("name").": ".$content->getOriginalFileName()."\r\n".
					getMLText("version").": ".$version."\r\n".
					getMLText("comment").": ".$content->getComment()."\r\n".
					"URL: http".((isset($_SERVER['HTTPS']) && (strcmp($_SERVER['HTTPS'],'off')!=0)) ? "s" : "")."://".$_SERVER['HTTP_HOST'].$settings->_httpRoot."out/out.ViewDocument.php?documentid=".$documentid."&version=".$version."\r\n";

				$subject=mydmsDecodeString($subject);
				$message=mydmsDecodeString($message);
				
				foreach ($docApprovalStatus as $dastat) {
				
					if ($dastat["status"] == 0) {
						if ($dastat["type"] == 0) {

							$approver = $dms->getUser($dastat["required"]);
							LetoDMS_Email::toIndividual($document->getOwner(), $approver, $subject, $message);
						}
						else if ($dastat["type"] == 1) {
						
							$group = $dms->getGroup($dastat["required"]);
							LetoDMS_Email::toGroup($document->getOwner(), $group, $subject, $message);
						}
					}
				}
			}
		}
	}
}

header("Location:../out/out.ViewDocument.php?documentid=".$documentid);

?>