class ViteRuby::Manifest

def react_preamble_code
  if dev_server_running?
    <<~REACT_PREAMBLE_CODE
      import RefreshRuntime from '#{ prefix_asset_with_host('@react-refresh') }'
      RefreshRuntime.injectIntoGlobalHook(window)
      window.$RefreshReg$ = () => {}
      window.$RefreshSig$ = () => (type) => type
      window.__vite_plugin_react_preamble_installed__ = true
    REACT_PREAMBLE_CODE
  end
end