/**
 * 仅测 IMAP 连通：登录 + SEARCH UNSEEN，不落库�?
 * pnpm imap:smoke
 */
import { getEnv, resetEnvCache } from "../src/lib/env";
import {
  createImapClient,
  hasImapCredentials,
} from "../src/services/imap/client";

async function main() {
  resetEnvCache();
  const env = getEnv();
  if (!hasImapCredentials()) {
    console.error("缺少 IMAP_USER / IMAP_PASS");
    process.exit(1);
  }

  const client = createImapClient();
  if (!client) {
    console.error("createImapClient returned null");
    process.exit(1);
  }

  console.log(`connecting ${env.IMAP_HOST}:${env.IMAP_PORT} as ${env.IMAP_USER}`);
  try {
    await client.connect();
    const unseen = await client.fetchUnseen();
    console.log(
      JSON.stringify(
        {
          ok: true,
          unseen: unseen.length,
          samples: unseen.slice(0, 5).map((m) => ({
            uid: m.uid,
            subject: m.envelope?.subject,
            from: m.envelope?.from?.[0]?.address,
            messageId: m.envelope?.messageId,
          })),
        },
        null,
        2,
      ),
    );
  } catch (err) {
    console.error("IMAP smoke failed:", err);
    process.exit(2);
  } finally {
    await client.disconnect().catch(() => undefined);
  }
}

main();