public static function process_email_form()
{
$post = array_map('stripslashes_deep', $_POST);
$step = absint($post['step']);
$id = isset($post['id']) ? $post['id'] : '';
$data = array();
$new = empty($id) || isset($_POST['new']) && $_POST['new'] == 1 ? '&new=1' : '';
if ($step == 1) {
$data['name'] = $post['name'];
$data['email_type'] = $post['email_type'];
} elseif ($step == 2) {
$data['always_send'] = isset($post['always_send']) ? $post['always_send'] : 0;
$data['meta'] = $post['meta'];
$data['subject'] = $post['email_subject'];
$data['interval_num'] = $post['interval'];
$data['interval_duration'] = $post['interval_duration'];
$data['interval_type'] = isset($post['interval_type']) ? $post['interval_type'] : '';
$data['send_date'] = $post['send_date'];
$data['send_date_hour'] = $post['send_date_hour'];
$data['send_date_minute'] = $post['send_date_minute'];
$data['tracking_on'] = isset($post['tracking_on']) ? $post['tracking_on'] : 0;
$data['tracking_code'] = $post['tracking'];
$data['product_id'] = isset($post['product_id']) ? $post['product_id'] : 0;
$data['category_id'] = isset($post['category_id']) ? $post['category_id'] : 0;
} elseif ($step == 3) {
$data['message'] = $post['email_message'];
$data['meta'] = $post['meta'];
}
$data = apply_filters('fue_pre_save_data', $data, $post);
$id = FUE::save_email($data, $id);
$step++;
$total_steps = apply_filters('fue_form_total_steps', 3);
if ($step > $total_steps) {
// process is complete
$save_type = empty($new) ? 'updated' : 'created';
wp_redirect('admin.php?page=followup-emails&' . $save_type . '=1');
} else {
// load next step
$params = array('step' => $step, 'id' => $id);
wp_redirect('admin.php?page=followup-emails-form&step=' . $step . '&id=' . $id . $new);
}
exit;
}