# backend/view_logs.py
import os

# 获取当前文件所在目录
basedir = os.path.abspath(os.path.dirname(__file__))
log_file = os.path.join(basedir, '..', 'logs', 'app.log')

def view_logs(lines=20):
    """查看最新的日志条目"""
    try:
        with open(log_file, 'r', encoding='utf-8') as f:
            all_lines = f.readlines()
            # 获取最后几行
            latest_lines = all_lines[-lines:] if len(all_lines) > lines else all_lines
            print(f"最新 {len(latest_lines)} 条日志:")
            for line in latest_lines:
                print(line.strip())
    except FileNotFoundError:
        print("日志文件不存在，请先运行应用程序")
    except Exception as e:
        print(f"读取日志文件时出错: {e}")

if __name__ == '__main__':
    view_logs()