<?php

include_once($UTIL_DIR . "/error.php");
include_once($UTIL_DIR . "/log.php");

function send($email, $subject, $message)
{
	global $subject_prefix;
	global $sender;
	global $replyto;
	global $footer;

	$message .= $footer;
	//	$message .= "";
	$headers = "From: " . $sender . "\r\n";
	$headers .= "Reply-To: " . $replyto . "\r\n";
	$headers .= "Content-Type: text/plain; charset=iso-8859-1\r\n";
	$headers .= "X-Mailer: PHP/" . phpversion();
	$subject = "[".$subject_prefix."] " . utf8_decode($subject);
		
	$ret = mail($email, $subject, utf8_decode($message), $headers);
	if(!$ret) echo error("The mail to " . $email . "could not be sent.");
}

function notify($module = "", $event = "")
{
	global $users;
	global $current_user;
	global $NOTIFY_RESEND;
	$users_changed = false;

	foreach($users->users as $user) {
		if($user->uid == 0) continue; // Don't notify the admin
		if($user->enabled == false) continue; // Do not mail disabled accounts.

		if($module == "calendar" || // Always mail calendar updates.
		   $user->username == "rasmus" || // Always send mails to Rasmus.
			 (
				$module == "forum" && 
				$user != $current_user && // Don't notify current user.
				$user->notified < (time() - $NOTIFY_RESEND) // Don't notify if already notified.
				)
			 ) {
			send($user->email, $module . " changed",
					 "There has been a change in the " . $module . " module by " .
					 $current_user->name . ":\n" . $event);

			_log($user->username, "notified (" . $module . ")");
	
			if($module != "calendar") {
				$user->notified = time();
				$users_changed = true;
			}
		}
	}
	if($users_changed == true) $users->write();
}
?>