<?php
    require_once 'servers/known-servers.php';
    require_once 'utils/room-icons.php';

    /**
     * Fetch the icon of the given Community server and return its relative path.
     * @param \CommunityServer $server
     * @param string $size Image dimensions.
     * @return string Relative path or null if icon is absent.
     */
    function server_icon(\CommunityServer $server, string $size): ?string {
        global $SERVER_ICON_MAPPING;
        $hostname = $server->get_hostname();
        if (!isset($SERVER_ICON_MAPPING[$hostname])) {
            return "";
        }
        $room_token = $SERVER_ICON_MAPPING[$hostname];
        $room = $server->get_room_by_token($room_token);
        if (!$room) {
            log_warning("Room $room_token on $hostname does not exist, cannot be used as icon.");
            return "";
        }
        return room_icon($room, $size);
    }
?>