/** Publication payload facts shared by static manifests and packed tarballs. */

/**
 * Whether a package manifest exports generated Host-for-Client metadata.
 * @param manifest - parsed package manifest to inspect.
 * @returns whether the canonical `./remote` export pair is present.
 */
export function hasTypertRemoteNavigation(manifest: unknown): boolean {
  if (manifest === null || typeof manifest !== 'object' || Array.isArray(manifest)) return false
  const exportsField = (manifest as Record<string, unknown>).exports
  if (exportsField === null || typeof exportsField !== 'object' || Array.isArray(exportsField)) return false
  const remote = (exportsField as Record<string, unknown>)['./remote']
  if (remote === null || typeof remote !== 'object' || Array.isArray(remote)) return false
  const entry = remote as Record<string, unknown>
  return entry.types === './lib/typert.remote-client.d.ts'
    && entry.default === './lib/typert.remote-client.js'
}