import { SunsamaClient } from "sunsama-api/client";
import { SunsamaAuthError } from "sunsama-api/errors";
const RETRY_DELAYS = [1_000, 5_000, 15_000]; // ms
/**
* Calls sunsamaClient.login() with exponential backoff on 429 rate limit errors.
* Makes up to 4 attempts total (initial + 3 retries) with delays of 5s, 15s, 45s.
* Non-429 errors are rethrown immediately without retrying.
*/
export async function loginWithRetry(
client: SunsamaClient,
email: string,
password: string,
): Promise<void> {
for (let attempt = 0; attempt <= RETRY_DELAYS.length; attempt++) {
try {
await client.login(email, password);
return;
} catch (err) {
const isRateLimit =
err instanceof SunsamaAuthError && err.message.includes("429");
if (!isRateLimit || attempt === RETRY_DELAYS.length) {
throw err;
}
const delay = RETRY_DELAYS[attempt]!;
console.error(
`[Auth] Rate limited (429). Retrying in ${delay / 1000}s (attempt ${attempt + 1}/${RETRY_DELAYS.length})`,
);
await new Promise<void>((resolve) => setTimeout(resolve, delay));
}
}
}
