"""日志配置"""

import logging
from logging.handlers import RotatingFileHandler


def setup_logging(config) -> logging.Logger:
    """配置日志系统，返回 logger 实例。"""
    logger = logging.getLogger("wechat_clicker")
    logger.setLevel(getattr(logging, config.log_level, logging.INFO))

    # 避免重复添加 handler
    if logger.handlers:
        return logger

    formatter = logging.Formatter(
        "%(asctime)s [%(levelname)s] %(name)s: %(message)s",
        datefmt="%Y-%m-%d %H:%M:%S",
    )

    # 文件 handler（自动轮转）
    file_handler = RotatingFileHandler(
        config.log_file,
        maxBytes=config.log_max_bytes,
        backupCount=config.log_backup_count,
        encoding="utf-8",
    )
    file_handler.setFormatter(formatter)
    logger.addHandler(file_handler)

    # 控制台 handler
    if config.log_console:
        console_handler = logging.StreamHandler()
        console_handler.setFormatter(logging.Formatter(
            "%(asctime)s [%(levelname)s] %(message)s",
            datefmt="%H:%M:%S",
        ))
        logger.addHandler(console_handler)

    return logger