/**
 * Hnalde on_project_object_copied event
 *
 * @param ProjectObject $original
 * @param ProjectObject $copy
 * @param Project $destination
 * @param mixed $cascade
 * @return null
 */
function resources_handle_on_project_object_copied(&$original, &$copy, &$destination, $cascade)
{
    if ($original->can_have_subscribers) {
        $subscribers = $original->getSubscribers();
        if (is_foreachable($subscribers)) {
            foreach ($subscribers as $subscriber) {
                if ($subscriber->isProjectMember($destination)) {
                    Subscriptions::subscribe($subscriber, $copy);
                }
                // if
            }
            // foreach
        }
        // if
    }
    // if
    if ($original->can_have_assignees) {
        Assignments::cloneAssignments($original, $copy);
    }
    // if
    if ($original->can_have_attachments) {
        Attachments::cloneAttachments($original, $copy);
    }
    // if
    // Copy child objects
    if ($cascade === true || is_foreachable($cascade)) {
        if ($cascade === true) {
            $rows = db_execute_all('SELECT * FROM ' . TABLE_PREFIX . 'project_objects WHERE parent_id = ?', $original->getId());
        } else {
            $rows = db_execute_all('SELECT * FROM ' . TABLE_PREFIX . 'project_objects WHERE parent_id = ? AND type IN (?)', $original->getId(), $cascade);
        }
        // if
        if (is_foreachable($rows)) {
            // We'll remember original and copy tasks ID-s here so we can move
            // assignments later on, when we have both instances
            $tasks = array();
            foreach ($rows as $row) {
                $subobject_original_id = $row['id'];
                $subobject_original_type = strtolower($row['type']);
                unset($row['id']);
                $row['project_id'] = $destination->getId();
                $row['parent_id'] = $copy->getId();
                $row['milestone_id'] = 0;
                // Copy file
                if ($subobject_original_type == 'attachment') {
                    $path = UPLOAD_PATH . '/' . $row['varchar_field_1'];
                    if (is_file($path)) {
                        $destination_file = get_available_uploads_filename();
                        if (copy($path, $destination_file)) {
                            $row['varchar_field_1'] = basename($destination_file);
                        }
                        // if
                    }
                    // if
                }
                // if
                // Escape values
                foreach ($row as $k => $v) {
                    $row[$k] = db_escape($v);
                }
                // foreach
                db_execute('INSERT INTO ' . TABLE_PREFIX . 'project_objects (' . implode(', ', array_keys($row)) . ') VALUES (' . implode(', ', $row) . ')');
                if ($subobject_original_type == 'task') {
                    $tasks[$subobject_original_id] = db_last_insert_id();
                }
                // if
            }
            // foraech
            if (instance_of($copy, 'Discussion')) {
                $last_comment = $copy->getLastComment();
                $last_comment_datetime = instance_of($last_comment, 'Comment') ? $last_comment->getCreatedOn() : null;
                $copy->setLastCommentOn($last_comment_datetime);
                $copy->save();
            }
            // if
            // Lets move task assinments if we have any tasks
            if (is_foreachable($tasks)) {
                foreach ($tasks as $task_original_id => $task_copy_id) {
                    $task_original = Tasks::findById($task_original_id);
                    $task_copy = Tasks::findById($task_copy_id);
                    if (instance_of($task_original, 'Task') && instance_of($task_copy, 'Task')) {
                        Assignments::cloneAssignments($task_original, $task_copy);
                        Subscriptions::cloneSubscriptions($task_original, $task_copy);
                    }
                    // if
                }
                // foreach
            }
            // if
        }
        // if
    }
    // if
}