// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "quiche/quic/masque/masque_dispatcher.h"

#include "quiche/quic/masque/masque_server_session.h"

namespace quic {

MasqueDispatcher::MasqueDispatcher(
    MasqueMode masque_mode, const QuicConfig* config,
    const QuicCryptoServerConfig* crypto_config,
    QuicVersionManager* version_manager, QuicEventLoop* event_loop,
    std::unique_ptr<QuicConnectionHelperInterface> helper,
    std::unique_ptr<QuicCryptoServerStreamBase::Helper> session_helper,
    std::unique_ptr<QuicAlarmFactory> alarm_factory,
    MasqueServerBackend* masque_server_backend,
    uint8_t expected_server_connection_id_length,
    ConnectionIdGeneratorInterface& generator)
    : QuicSimpleDispatcher(config, crypto_config, version_manager,
                           std::move(helper), std::move(session_helper),
                           std::move(alarm_factory), masque_server_backend,
                           expected_server_connection_id_length, generator),
      masque_mode_(masque_mode),
      event_loop_(event_loop),
      masque_server_backend_(masque_server_backend) {}

std::unique_ptr<QuicSession> MasqueDispatcher::CreateQuicSession(
    QuicConnectionId connection_id, const QuicSocketAddress& self_address,
    const QuicSocketAddress& peer_address, absl::string_view /*alpn*/,
    const ParsedQuicVersion& version,
    const ParsedClientHello& /*parsed_chlo*/) {
  // The MasqueServerSession takes ownership of |connection| below.
  QuicConnection* connection =
      new QuicConnection(connection_id, self_address, peer_address, helper(),
                         alarm_factory(), writer(),
                         /*owns_writer=*/false, Perspective::IS_SERVER,
                         ParsedQuicVersionVector{version});

  auto session = std::make_unique<MasqueServerSession>(
      masque_mode_, config(), GetSupportedVersions(), connection, this,
      event_loop_, session_helper(), crypto_config(), compressed_certs_cache(),
      masque_server_backend_);
  session->Initialize();
  return session;
}

}  // namespace quic