<?php

declare(strict_types=1);

namespace LayLink\Transport;

use LayLink\Protocol\Frame;
use Workerman\Connection\UdpConnection;

final class KcpFrameServerConnection implements FrameServerConnection
{
    private bool $closed = false;

    public function __construct(
        private readonly int $id,
        private UdpConnection $connection,
        private readonly KcpReliableSession|NativeKcpSession $session,
        private readonly int $maxSendBuffer,
    ) {
    }

    public function id(): int
    {
        return $this->id;
    }

    public function send(Frame $frame): bool|null
    {
        if ($this->closed) {
            return false;
        }

        return $this->session->sendFrame($frame, $this->maxSendBuffer);
    }

    public function close(): void
    {
        if ($this->closed) {
            return;
        }

        $this->closed = true;
        $this->session->close();
    }

    public function pauseRecv(): void
    {
        $this->session->pause();
    }

    public function resumeRecv(): void
    {
        $this->session->resume();
    }

    public function getSendBufferQueueSize(): int
    {
        return $this->session->getSendBufferQueueSize();
    }

    public function getRemoteIp(): string
    {
        return $this->connection->getRemoteIp();
    }

    public function updateConnection(UdpConnection $connection): void
    {
        $this->connection = $connection;
    }

    public function isClosed(): bool
    {
        return $this->closed || $this->session->isClosed();
    }
}