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//
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#include <memory>

#include "base/logging.h"
#include "base/run_level.h"
#include "base/system_util.h"
#include "base/win_util.h"
#include "client/client_interface.h"
#include "renderer/renderer_client.h"
#include "win32/base/imm_util.h"

namespace mozc {
namespace win32 {
namespace {

using std::unique_ptr;

const int kErrorLevelSuccess = 0;
const int kErrorLevelGeneralError = 1;

}  // namespace

int RunPrelaunchProcesses(int argc, char *argv[]) {
  if (RunLevel::IsProcessInJob()) {
    return kErrorLevelGeneralError;
  }

  bool is_service_process = false;
  if (!WinUtil::IsServiceProcess(&is_service_process)) {
    // Returns DENY conservatively.
    return kErrorLevelGeneralError;
  }
  if (is_service_process) {
    return kErrorLevelGeneralError;
  }

  if (!SystemUtil::IsWindows8OrLater() && !ImeUtil::IsDefault()) {
    // If Mozc is not default on Windows 7 or former, do nothing.
    return kErrorLevelSuccess;
  }

  {
    unique_ptr<client::ClientInterface> converter_client(
        client::ClientFactory::NewClient());
    converter_client->set_suppress_error_dialog(true);
    converter_client->EnsureConnection();
  }

  {
    unique_ptr<renderer::RendererClient> renderer_client(
        new mozc::renderer::RendererClient);
    renderer_client->set_suppress_error_dialog(true);
    renderer_client->Activate();
  }

  return kErrorLevelSuccess;
}

}  // namespace win32
}  // namespace mozc
