\n";
foreach($users->users as $user) {
if($user->enabled && $user->uid != 0) {
$str .= "\n";
}
}
$str .= "";
return $str;
}
class Task {
public $id;
public $title;
public $deadline;
public $description;
public $lastreminder;
public $reassignable;
public $userid;
public $completed;
public function write($fp)
{
fwrite($fp, " id) . "\"\n");
fwrite($fp, " title=\"" .xmlenc($this->title) . "\"\n");
fwrite($fp, " deadline=\"" . xmlenc($this->deadline) . "\"\n");
fwrite($fp, " userid=\"" . xmlenc($this->userid) . "\"\n");
if($this->reassignable) fwrite($fp, " reassignable=\"true\"\n");
else fwrite($fp, " reassignable=\"false\"\n");
if($this->completed) fwrite($fp, " completed=\"true\"\n");
else fwrite($fp, " completed=\"false\"\n");
fwrite($fp, " lastreminder=\"" . xmlenc($this->lastreminder) . "\">\n");
fwrite($fp, " ".xmlenc($this->description)."\n");
if($this->refs) $this->refs->write($fp, " ");
fwrite($fp, " \n");
}
public function show()
{
global $users, $current_user;
$str .= "
\n";
$str .= " \n";
$str .= "
\n";
return $str;
}
public function mailTextSubject()
{
return $this->title . " - deadline: ".date("j/n-Y", $this->deadline);
}
public function mailTextBody()
{
return $this->title . "\n\n" . $this->description . "\n\nDeadline: ".date("j/n-Y", $this->deadline);
}
public function Task($id, $title, $deadline, $description, $lastreminder,
$reassignable, $userid, $completed)
{
$this->id = $id;
$this->title = $title;
$this->deadline = $deadline;
$this->description = $description;
$this->lastreminder = $lastreminder;
$this->reassignable = $reassignable;
$this->userid = $userid;
$this->completed = $completed;
}
}
class Tasks {
private $file;
public $tasks = array();
public function show()
{
$str = "\n";
foreach($this->tasks as $task) {
if($task->completed == false) {
$str .= $task->show();
}
}
$str .= "
\n";
$str .= "
\n";
$str .= "\n";
foreach($this->tasks as $task) {
if($task->completed == true) {
$str .= $task->show();
}
}
$str .= "
\n";
return $str;
}
public function add($task) {
$this->tasks[$task->id] = $task;
}
public function getNextID()
{
$id = 0;
foreach($this->tasks as $task) {
if($task->id > $id) $id = $task->id;
}
return $id + 1;
}
public function write()
{
$fp = fopen($this->file, "w");
fwrite($fp, "\n");
fwrite($fp, "\n");
foreach($this->tasks as $task) {
$task->write($fp);
}
fwrite($fp, "\n");
fclose($fp);
}
private function read()
{
$dom = new DomDocument;
$dom->preserveWhiteSpace = FALSE;
$dom->load($this->file);
$params = $dom->getElementsByTagName('task');
foreach($params as $param) {
$description = "";
$dess = $param->getElementsByTagName('description');
foreach($dess as $des) {
$description = $des->textContent;
}
$task = new Task($param->getAttribute('id'),
$param->getAttribute('title'),
$param->getAttribute('deadline'),
$description,
$param->getAttribute('lastreminder'),
$param->getAttribute('reassignable') == "true",
$param->getAttribute('userid'),
$param->getAttribute('completed') == "true");
$this->add($task);
}
}
public function Tasks($file)
{
$this->file = $file;
if(file_exists($file)) $this->read();
}
}
function tasks_init()
{
global $DATA_DIR;
return new Tasks($DATA_DIR . "/tasks.xml");
}
function sendMail($id, $new, $reassigned)
{
global $tasks, $users;
$task = $tasks->tasks[$id];
$task->lastreminder = time();
$tasks->write();
$user = $users->getUser($task->userid);
$prefix = "Task Reminder - ";
if($new) $prefix = "New Task - ";
if($reassigned) $prefix = "Reassigned Task - ";
$email = $user->email;
$subject = $prefix . $task->mailTextSubject();
$body = $task->mailTextBody();
send($email, $subject, $body);
}
$tasks = tasks_init();
if($action == "tick") {
$now = time();
$h = (60 * 60);
$d = ($h * 24);
$mininterval = $d - $h * 4;
$maxinterval = $d * 7 - $h * 4;
$overdueinterval = $h * 7;
foreach($tasks->tasks as $task) {
if($task->completed) continue; // no need for reminding
if(($now > $task->deadline) && (($now - $task->lastreminder) > $overdueinterval)) {
// Deadline is overdue, and it has been more than $overdueinterval since last reminder.
sendMail($task->id, false, false);
} elseif((($task->deadline - $now) > $maxinterval) && (($now - $task->lastreminder) > $maxinterval)) {
// Deadline is a long way off, but it has been $maxinterval since last reminder.
sendMail($task->id, false, false);
} elseif((($task->deadline - $now) > $mininterval) && (($now - $task->lastreminder) > $mininterval)) {
// Deadline is near, and it has been $mininterval since last reminder.
sendMail($task->id, false, false);
}
}
}
if($action == "update") {
$reassigned = false;
$id = $GLOBALS['id'];
$task = $tasks->tasks[$id];
if(isset($GLOBALS['completed'])) $task->completed = $GLOBALS['completed'] == "on";
if(isset($GLOBALS['userid'])) {
$reassigned = $task->userid != $GLOBALS['userid'];
$task->userid = $GLOBALS['userid'];
}
$tasks->write();
if($reassigned) sendMail($id, false, true);
}
if($action == "add") {
$deadline = strtotime($GLOBALS['deadline_year']."-".
$GLOBALS['deadline_month']."-".
$GLOBALS['deadline_day']);
$task = new Task($tasks->getNextID(),
stripslashes($GLOBALS['title']),
$deadline,
stripslashes($GLOBALS['description']),
0,
$GLOBALS['reassignable'] == "on",
$GLOBALS['userid'],
false);
$tasks->add($task);
$tasks->write();
sendMail($task->id, true, false);
}
?>
show();
?>