from datetime import datetime
from zoneinfo import ZoneInfo
from tzlocal import get_localzone


def fix_datetime(naive_time: datetime, target_tz=ZoneInfo("Asia/Shanghai")):
    if not naive_time:
        return None

    local_tz = get_localzone()
    aware_local = naive_time.replace(tzinfo=local_tz)
    return aware_local.astimezone(target_tz).strftime("%Y-%m-%d %H:%M:%S")


def time_diff(time1: datetime, time2: datetime):
    t_diff = time2 - time1
    days = t_diff.days
    hours = t_diff.seconds // 3600
    minutes = (t_diff.seconds % 3600) // 60
    seconds = t_diff.seconds % 60
    return f"{days} d {hours} h {minutes} m {seconds} s"