import type { AccountBinding, MarketplaceLibrarySnapshot } from './account-plugin-cache';
import { MarketplaceClientError, type MarketplaceClient } from './marketplace-client';
import type { PluginPackageStore } from './package-store';
import { isMakeLoreVersionCompatible } from './release-descriptor';

export const DEFAULT_CHILD_REPLIES_PLUGIN_ID = 'makelore.child-friendly-replies';

/** Defaults use the normal signed Artifact flow and the account's removal receipt. */
export async function installDefaultChildReplies(options: {
  marketplace: MarketplaceClient;
  packageStore: PluginPackageStore;
  clientVersion: string;
  binding: AccountBinding | null;
  library: MarketplaceLibrarySnapshot;
  onInstalled(): Promise<void>;
}): Promise<MarketplaceLibrarySnapshot> {
  let library = options.library;
  const binding = options.binding;
  if (!binding || library.stale) return library;
  const assertAccount = () => {
    const current = options.marketplace.getCurrentAccountBinding();
    if (current?.accountKey !== binding.accountKey || current?.epoch !== binding.epoch) {
      throw new MarketplaceClientError('marketplace_account_changed', 409, 'Marketplace account changed');
    }
  };
  const pluginId = DEFAULT_CHILD_REPLIES_PLUGIN_ID;
  const entry = library.items.find((item) => item.pluginId === pluginId);
  if (entry?.removedAt || entry?.runtimeStatus === 'suspended' || entry?.catalogStatus === 'retired') return library;
  try {
    assertAccount();
    if (entry && await options.packageStore.getInstalled(pluginId)) return library;
    const detail = await options.marketplace.readDetail(pluginId);
    assertAccount();
    const release = detail.stableRelease;
    if (detail.stale || detail.runtimeStatus !== 'enabled' || detail.acquisition !== 'free'
      || release?.deliveryKind !== 'artifact' || !release.signingKeyId || !release.descriptorSignature
      || !isMakeLoreVersionCompatible(options.clientVersion, release.minMakeloreVersion, release.maxMakeloreVersion)) return library;
    if (!entry) {
      library = await options.marketplace.acquire(pluginId);
      assertAccount();
    }
    await options.packageStore.resolveAndInstall({
      pluginId, makeloreVersion: options.clientVersion, channel: 'stable',
    });
    assertAccount();
    await options.onInstalled();
  } catch (error) {
    assertAccount();
    if (error instanceof MarketplaceClientError && error.code === 'marketplace_account_changed') throw error;
    // An unavailable default must not hide the rest of the Library. A later
    // session/list refresh retries; no local success or removal receipt is invented.
  }
  return library;
}