from app import create_app
from extensions import db
from models import Device

app = create_app()

with app.app_context():
    # 查找状态异常但 offset 被判定为当天的假数据
    fake_devices = Device.query.filter(
        Device.status.in_(['离线', '异常', '已离线', 'offline', '未知']),
        Device.offset == '当天'
    ).all()

    count = 0
    for dev in fake_devices:
        dev.latest_time = None
        dev.offset = '从未同步'
        count += 1

    db.session.commit()
    print(f"✅ 成功清洗了 {count} 台处于离线但伪造了时间的设备！")