import logging
import os
from core.config import settings

def setup_logger():
    log_dir = settings.logging.directory
    log_level = settings.logging.level
    os.makedirs(log_dir, exist_ok=True)
    # 创建并配置全局 logger
    logger_name = 'app'
    _logger = logging.getLogger('app')
    if len(_logger.handlers) == 0:
        handler = logging.FileHandler(os.path.join(log_dir, f"{logger_name}.log"), encoding='utf-8')
        formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
        handler.setFormatter(formatter)
        _logger.addHandler(handler)
        if settings.get("logging.console", False):
            console_handler = logging.StreamHandler()
            console_handler.setFormatter(formatter)
            _logger.addHandler(console_handler)
        _logger.setLevel(getattr(logging, log_level.upper(), logging.DEBUG))

    # 关闭日志传播，防止重复处理
    _logger.propagate = False
    return _logger

# 程序启动时调用一次 logger 配置
logger = setup_logger()