import logging
import datetime
from pathlib import Path


class Logger:
    @staticmethod
    def set_logger() -> logging.Logger:
        """
        Configure and return a logger with a file handler that writes to logs/<current date-time>.txt

        Returns:
            logging.Logger: Configured logger instance
        """
        # Create logger
        logger = logging.getLogger("Alfred")
        logger.setLevel(logging.INFO)

        # Create formatter
        formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')

        # Create logs directory if it doesn't exist
        logs_dir = Path('logs')
        logs_dir.mkdir(exist_ok=True)

        # Generate log filename with current date-time
        current_time = datetime.datetime.now().strftime("%Y-%m-%d_%H-%M-%S")
        log_filename = f"{current_time}.txt"
        log_filepath = logs_dir / log_filename

        # Create file handler with UTF-8 encoding to handle all Unicode characters
        file_handler = logging.FileHandler(log_filepath, encoding='utf-8')
        file_handler.setLevel(logging.INFO)
        file_handler.setFormatter(formatter)

        # Add handler to logger
        logger.addHandler(file_handler)

        logger.info(f"Logging started at {current_time}")
        return logger