from datetime import datetime


def ts_cover_str(ts=0, _format='%Y-%m-%d %H:%M:%S') -> str:
    return datetime.fromtimestamp(ts / 1000).strftime(_format)


def str_cover_date(s: str, _format='%Y-%m-%d %H:%M:%S') -> datetime:
    return datetime.strptime(s, _format)


def timestamp_convert(ts: int) -> str:
    return seconds_convert(ts // 1000)


def seconds_convert(seconds: int) -> str:
    hours = seconds // 3600
    minutes = (seconds % 3600) // 60
    seconds = seconds % 60

    s = ""
    if hours > 0:
        s = f"{s} {hours}小时"
    if minutes > 0:
        s = f"{s} {minutes}分"
    if seconds > 0:
        s = f"{s} {seconds}秒"
    return s


def date_convert_dt_hh(date_str: str, _format='%Y-%m-%d %H:%M:%S') -> str:
    date_obj = datetime.strptime(date_str, _format)
    return date_obj.strftime('%Y%m%d%H')