//
// Copyright (C) 2023 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "cuttlefish/host/commands/run_cvd/launch/snapshot_control_files.h"

#include <sys/socket.h>
#include <unistd.h>

#include "cuttlefish/common/libs/fs/shared_fd.h"
#include "cuttlefish/host/libs/config/cuttlefish_config.h"
#include "cuttlefish/result/result.h"

namespace cuttlefish {

Result<SnapshotControlFiles> SnapshotControlFiles::Create(
    const CuttlefishConfig::InstanceSpecific& instance) {
  auto confui_socket_path =
      instance.PerInstanceInternalUdsPath("confui_sign.sock");
  unlink(confui_socket_path.c_str());
  auto confui_server_fd =
      SharedFD::SocketLocalServer(confui_socket_path, false, SOCK_STREAM, 0600);
  CF_EXPECTF(confui_server_fd->IsOpen(), "Could not open \"{}\": {}",
             confui_socket_path, confui_server_fd->StrError());

  SharedFD snapshot_control_fd;
  SharedFD run_cvd_to_secure_env_fd;
  CF_EXPECT(SharedFD::SocketPair(AF_UNIX, SOCK_STREAM, 0, &snapshot_control_fd,
                                 &run_cvd_to_secure_env_fd));

  return SnapshotControlFiles{
      confui_server_fd,
      snapshot_control_fd,
      run_cvd_to_secure_env_fd,
  };
}

}  // namespace cuttlefish
