<?php
// Change these to make tests run successfully
$server   = '{127.0.0.1/norsh}';
$default_mailbox = $server . "INBOX";
$domain = "something.com";
$admin_user = "webmaster"; // a user with admin access
$username = "$admin_user@$domain";
$password = 'p4ssw0rd';
$users = array("webmaster", "info", "admin", "foo"); // tests require 4 valid userids
$mailbox_prefix = "phpttest"; // name used for test mailbox

// record test start time (used by displayOverviewFields())
$start_time = time();

// list of fields to expect
$mandatory_overview_fields = array(
                    'size',
                    'uid',
                    'msgno',
                    'recent',
                    'flagged',
                    'answered',
                    'deleted',
                    'seen',
                    'draft',
                    'udate',
                   );

/**
 * Display all fields in an element from an imap_fetch_overview() response
 *
 * Special handling for 'udate', which will vary run-to-run; assumes an IMAP
 * server with its clock synced to the current system, which is consistent with
 * setup instructions in ext/imap/tests/README.md
 *
 * @param array resp element from the return value of imap_fetch_overview()
 */
function displayOverviewFields($resp, $fields=null) {
  global $mandatory_overview_fields;
  global $start_time;

  foreach ($fields ? $fields : $mandatory_overview_fields as $mf)
  {
    $z = $resp->$mf;
    if ($mf == 'udate') {
      if (($z >= $start_time) && ($z <= time())) {
        echo "$mf is OK\n";
      } else {
        echo "$mf is BAD ($z)\n";
      }
    } else {
      echo "$mf is $z\n";
    }
  }
}


/**
 * Create a test mailbox and populate with msgs
 *
 * @param string mailbox_suffix Suffix used to uniquely identify mailboxes
 * @param int message_count number of test msgs to be written to new mailbox
 *
 * @return IMAP stream to new mailbox on success; FALSE on failure
 */
function setup_test_mailbox($mailbox_suffix, $message_count, &$new_mailbox = null, $msg_type = "simple"){
	global $server, $default_mailbox, $username, $password;

	// open a stream to default mailbox
	$imap_stream = imap_open($default_mailbox, $username, $password);

	if ($imap_stream === false) {
		echo "Cannot connect to IMAP server $server: " . imap_last_error() . "\n";
		return false;
	}

	echo "Create a temporary mailbox and add " . $message_count .  " msgs\n";
	$new_mailbox = create_mailbox($imap_stream, $mailbox_suffix, $message_count, $msg_type);
	if ($new_mailbox === false) {
	   echo "Cant create a temporary mailbox: " . imap_last_error(). "\n";
	   return false;
	}

	echo ".. mailbox '$new_mailbox' created\n";

	// reopen stream to new mailbox
	if (imap_reopen($imap_stream, $new_mailbox) === false) {
		echo "cant re-open '$new_mailbox' mailbox: " . imap_last_error() . "\n";
		return false;
	}

	return $imap_stream;
}

/**
 * Create mailbox and fill with generic emails
 *
 * @param resource $imap_stream
 * @param string $mailbox
 */
function create_mailbox($imap_stream, $mailbox_suffix, $message_count, $msg_type= "simple"){
	global $default_mailbox, $mailbox_prefix;
	$mailbox = $default_mailbox . "." . $mailbox_prefix . $mailbox_suffix;

	$mailboxes = imap_getmailboxes($imap_stream, $mailbox, '*');

	// check mailbox does not already exist
	if ($mailboxes) {
		foreach($mailboxes as $value) {
			if ($value->name == $mailbox) {
				exit ("TEST FAILED : Mailbox '$mailbox' already exists\n");
			}
		}
	}

	if (imap_createmailbox($imap_stream, $mailbox) === false) {
		return false;
	}

	// Add number of test msgs requested
	if ($message_count > 0) {
		populate_mailbox($imap_stream, $mailbox, $message_count, $msg_type);
	}

	return $mailbox;
}

/**
 * Populate a mailbox with generic emails
 *
 * @param resource $imap_stream
 * @param string $mailbox
 */
function populate_mailbox($imap_stream, $mailbox, $message_count, $msg_type = "simple"){

	global $users, $domain;

	for($i = 1; $i <= $message_count; $i++) {
		if ($msg_type == "simple") {
			$msg =  "From: foo@anywhere.com\r\n"
				. "To: $users[0]@$domain\r\n"
				. "Subject: test$i\r\n"
				. "\r\n"
				. "$i: this is a test message, please ignore\r\n";
		} else {
			$envelope["from"]= "foo@anywhere.com";
			$envelope["to"]  = "$users[0]@$domain";
			$envelope["subject"] = "Test msg $i";

			$part1["type"] = TYPEMULTIPART;
			$part1["subtype"] = "mixed";

			$part2["type"] = TYPETEXT;
			$part2["subtype"] = "plain";
			$part2["description"] = "imap_mail_compose() function";
			$part2["contents.data"] = "message 1:xxxxxxxxxxxxxxxxxxxxxxxxxx";

			$part3["type"] = TYPETEXT;
			$part3["subtype"] = "plain";
			$part3["description"] = "Example";
			$part3["contents.data"] = "message 2:yyyyyyyyyyyyyyyyyyyyyyyyyy";

			$part4["type"] = TYPETEXT;
			$part4["subtype"] = "plain";
			$part4["description"] = "Return Values";
			$part4["contents.data"] = "message 3:zzzzzzzzzzzzzzzzzzzzzzzzzz";

			$body[1] = $part1;
			$body[2] = $part2;
			$body[3] = $part3;
			$body[4] = $part4;

			$msg = imap_mail_compose($envelope, $body);
		}

		imap_append($imap_stream, $mailbox, $msg);
	}
}

/**
 * Get the mailbox name from a mailbox description, i.e strip off server details.
 *
 * @param string mailbox complete mailbox name
 * @return mailbox name
 */
function get_mailbox_name($mailbox){

	if (preg_match('/\{.*?\}(.*)/', $mailbox, $match) != 1) {
		echo "Unrecpognized mailbox name\n";
		return false;
	}

	return $match[1];
}

?>
