<?php

/**
 +-----------------------------------------------------------------------+
 | This file is part of the Roundcube Webmail client                     |
 |                                                                       |
 | Copyright (C) The Roundcube Dev Team                                  |
 |                                                                       |
 | Licensed under the GNU General Public License version 3 or            |
 | any later version with exceptions for skins & plugins.                |
 | See the README file for a full license statement.                     |
 |                                                                       |
 | PURPOSE:                                                              |
 |   Compose a recipient list with all selected contacts                 |
 +-----------------------------------------------------------------------+
 | Author: Thomas Bruederli <roundcube@gmail.com>                        |
 +-----------------------------------------------------------------------+
*/

$cids    = rcmail_get_cids();
$mailto  = array();
$sources = array();

foreach ($cids as $source => $cid) {
    $CONTACTS = $RCMAIL->get_address_book($source);

    if ($CONTACTS->ready) {
        $CONTACTS->set_page(1);
        $CONTACTS->set_pagesize(count($cid) + 2); // +2 to skip counting query
        $sources[] = $CONTACTS->search($CONTACTS->primary_key, $cid, 0, true, true, 'email');
    }
}

if (!empty($_REQUEST['_gid']) && isset($_REQUEST['_source'])) {
    $source   = rcube_utils::get_input_value('_source', rcube_utils::INPUT_GP);
    $group_id = rcube_utils::get_input_value('_gid', rcube_utils::INPUT_GP);

    $CONTACTS   = $RCMAIL->get_address_book($source);
    $group_data = $CONTACTS->get_group($group_id);

    // group has an email address assigned: use that
    if ($group_data['email']) {
        $mailto[] = format_email_recipient($group_data['email'][0], $group_data['name']);
    }
    else if ($CONTACTS->ready) {
        $maxnum = (int) $RCMAIL->config->get('max_group_members');

        $CONTACTS->set_group($group_id);
        $CONTACTS->set_page(1);
        $CONTACTS->set_pagesize($maxnum ?: 999);
        $sources[] = $CONTACTS->list_records();
    }
}

foreach ($sources as $source) {
    while (is_object($source) && ($rec = $source->iterate())) {
        $emails = $CONTACTS->get_col_values('email', $rec, true);

        if (!empty($emails)) {
            $mailto[] = format_email_recipient($emails[0], $rec['name']);
        }
    }
}

if (!empty($mailto)) {
    $mailto_str = join(', ', $mailto);
    $mailto_id  = substr(md5($mailto_str), 0, 16);
    $_SESSION['mailto'][$mailto_id] = urlencode($mailto_str);
    $OUTPUT->command('open_compose_step', array('_mailto' => $mailto_id));
}
else {
    $OUTPUT->show_message('nocontactsfound', 'warning');
}

// send response
$OUTPUT->send();