"""查看最新 ETL 日志的最后 50 行"""
import os
from pathlib import Path
from dotenv import load_dotenv

load_dotenv(Path(__file__).resolve().parents[2] / ".env")
log_root = Path(os.environ["LOG_ROOT"])

logs = sorted(log_root.glob("*.log"), key=lambda p: p.stat().st_mtime, reverse=True)
if not logs:
    print("无日志文件")
else:
    latest = logs[0]
    print(f"最新日志: {latest.name} ({latest.stat().st_size} bytes)")
    print(f"修改时间: {latest.stat().st_mtime}")
    lines = latest.read_text(encoding="utf-8", errors="replace").splitlines()
    print(f"总行数: {len(lines)}")
    print(f"\n--- 最后 60 行 ---")
    for line in lines[-60:]:
        print(line)