from time import sleep
import os

from loguru import logger

from src.utils.base.base import BaseDirectoryMonitor


class DirectoryMonitor(BaseDirectoryMonitor):

    def _init_state(self):
        files = os.listdir(self._directory_path)
        self._files = files

        self.update_timer.timeout.connect(self._monitor)
        logger.info("Monitor initiated!")

    def _monitor(self):
        files = os.listdir(self._directory_path)
        new_files = sorted(list(map(lambda x: os.path.join(self._directory_path, x),
                                    filter(lambda x: x not in self._files, files))))
        if new_files:
            logger.info(f"New files detected: {new_files}")
            self._mediator.notify(self, new_files)
            self._files = files
        if not files:
            self._files = []