import os
import sys
import time
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

class TestResultsHandler(FileSystemEventHandler):
    def __init__(self, callback):
        super().__init__()
        self.callback = callback

    def on_created(self, event):
        if event.is_directory:
            print(f"[watcher] Detected new test result directory: {event.src_path}")
            self.callback(event.src_path)


def start_watching_results_dir(results_dir, callback):
    event_handler = TestResultsHandler(callback)
    observer = Observer()
    observer.schedule(event_handler, results_dir, recursive=False)
    observer.start()
    print(f"[watcher] Started watching for new test results in: {results_dir}")
    try:
        while True:
            time.sleep(1)
    except KeyboardInterrupt:
        observer.stop()
    observer.join()