@notes-sync/service/src/watcher.ts

Background service for AI-powered note synchronization

import chokidar from 'chokidar';
import { Logger } from './logger';

export class FileWatcher {
  private watcher?: chokidar.FSWatcher;

  start(notesDir: string, glob: string, ignore: string[], onSync: () => void) {
    Logger.log(`Starting file watcher for: ${notesDir}`);

    this.watcher = chokidar.watch(glob, {
      cwd: notesDir,
      ignored: ignore,
      ignoreInitial: true,
      persistent: true,
      awaitWriteFinish: { stabilityThreshold: 300, pollInterval: 50 },
    });

    this.watcher
      .on('add', path => {
        Logger.log(`File added: ${path}`);
        onSync();
      })
      .on('change', path => {
        Logger.log(`File changed: ${path}`);
        onSync();
      })
      .on('unlink', path => {
        Logger.log(`File removed: ${path}`);
        onSync();
      })
      .on('error', err => {
        Logger.error('File watcher error:', err);
      });
  }

  stop() {
    if (this.watcher) {
      this.watcher.close();
      Logger.log('File watcher stopped');
    }
  }
}