import type { Config } from '../config/index.js';
import type { ConfigPersistence } from '../config/index.js';
import type { Logger } from '../utils/logger.js';
import type { SubredditPollingControl } from './monitor.js';

/** Persists a terminal Reddit listing failure so every account stops polling it. */
export function createConfigBackedSubredditPollingControl(
  config: Config,
  configStore: ConfigPersistence,
  logger: Logger,
): SubredditPollingControl {
  return {
    disableUnavailableSubreddit(subreddit: string): void {
      const entry = config.reddit.subreddits.find((candidate) => candidate.name.toLowerCase() === subreddit.toLowerCase());
      if (!entry || entry.enabled === false) return;

      entry.enabled = false;
      configStore.save(config);
      logger.warn(`Persisted disabled status for unavailable subreddit r/${entry.name}`);
    },
    isSubredditEnabled(subreddit: string): boolean {
      return config.reddit.subreddits.find((entry) => entry.name.toLowerCase() === subreddit.toLowerCase())?.enabled !== false;
    },
  };
}