import { isWebServer } from './constants'
import type { One } from './vite/types'

// works client or server
export const getDefaultRenderMode = () => {
  const CLIENT_RENDER_MODE = process.env.ONE_DEFAULT_RENDER_MODE as
    | One.RouteRenderMode
    | undefined
  const serverConfig = globalThis['__vxrnPluginConfig__'] as One.PluginOptions | undefined

  if (!CLIENT_RENDER_MODE && isWebServer && !serverConfig) {
    if (process.env.IS_VXRN_CLI) {
      throw new Error(
        `Internal one error: should call setServerConfig before createManifest`
      )
    }
  }

  return CLIENT_RENDER_MODE ?? serverConfig?.web?.defaultRenderMode ?? 'ssg'
}