import logging

logger = logging.getLogger(__name__)

class FileMonitor:
    def __init__(self, directory, callback):
        self.directory = directory
        self.callback = callback

    def start_monitoring(self):
        import time
        import os

        already_seen = set(os.listdir(self.directory))
        while True:
            time.sleep(1)  # Check every second
            current_files = set(os.listdir(self.directory))
            new_files = current_files - already_seen

            for new_file in new_files:
                logger.info(f"monitor: new file found: {new_file}")
                self.callback(os.path.join(self.directory, new_file))
                
            already_seen = current_files