import { Logger } from '@nestjs/common';
import { rethrowIfRateLimited } from '../hiboutik/hiboutik.client';

/**
 * Runs `action` on each item, one at a time: a failing item is logged and skipped, the others are still processed.
 * A Hiboutik rate limit error stops the loop (rethrown): the next items would fail the same way.
 * @param items
 * @param action
 * @param logger
 * @param describe label of an item in the error log, e.g. "Hiboutik brand 12".
 * @returns the number of failed items.
 */
export async function forEachSafely<T>(
  items: T[],
  action: (item: T) => Promise<unknown>,
  logger: Logger,
  describe: (item: T) => string,
): Promise<number> {
  let nbFailed = 0;
  for (const item of items) {
    try {
      await action(item);
    } catch (error) {
      rethrowIfRateLimited(error);
      nbFailed++;
      logger.error(`Failed to sync ${describe(item)}`, (error as Error)?.stack);
    }
  }
  return nbFailed;
}