lure / packages / core / src / watcher.ts

import chokidar from "chokidar";
import type { FSWatcher } from "chokidar";
import * as nodePath from "node:path";
import type { LureCache } from "./loader.js";

export function watchLures(luresDir: string, cache: LureCache): FSWatcher {
  const pattern = nodePath.join(nodePath.resolve(luresDir), "**", "*.lure").replace(/\\/g, "/");

  const watcher = chokidar.watch(pattern, { ignoreInitial: true });

  watcher
    .on("add", (filePath: string) => {
      void (async () => {
        try {
          await cache.set(filePath);
        } catch (error) {
          console.error(`Failed to load new lure ${filePath}:`, error);
        }
      })();
    })
    .on("change", (filePath: string) => {
      void (async () => {
        try {
          await cache.set(filePath);
        } catch (error) {
          console.error(`Failed to reload lure ${filePath}:`, error);
        }
      })();
    })
    .on("unlink", (filePath: string) => {
      cache.delete(filePath);
    });

  return watcher;
}