import math
import time
from datetime import datetime


# 轉換時間格式到字串(天)
def human_date(date=None):
    if date:
        assert isinstance(date, datetime)
    else:
        date = datetime.now()
    return date.strftime("%Y-%m-%d")


# 轉換時間格式到字串
def human_datetime(date=None):
    if date:
        assert isinstance(date, datetime)
    else:
        date = datetime.now()
    return date.strftime("%Y-%m-%d %H:%M:%S")


def human_time(date=None):
    if date:
        assert isinstance(date, datetime)
    else:
        date = datetime.now()
    return date.strftime("%H:%M:%S")


# 解析時間類型的資料
def parse_time(value):
    if isinstance(value, datetime):
        return value
    if isinstance(value, str):
        if len(value) == 10:
            return datetime.strptime(value, "%Y-%m-%d")
        elif len(value) == 19:
            return datetime.strptime(value, "%Y-%m-%d %H:%M:%S")
    raise TypeError("Expect a datetime.datetime value")


# 傳兩個時間得到一個時間差
def human_seconds_time(seconds):
    text = ""
    if seconds >= 3600:
        text += "%d小時" % (seconds / 3600)
        seconds = seconds % 3600
    if seconds >= 60:
        text += "%d分" % (seconds / 60)
        seconds = seconds % 60
    if seconds > 0:
        if text or isinstance(seconds, int):
            text += "%.d秒" % seconds
        else:
            text += "%.1f秒" % seconds
    return text


def seconds_for_human(seconds):

    second = 1
    minute = second * 60
    hour = minute * 60
    day = hour * 24
    lst = []

    if seconds >= day:
        days, seconds = divmod(seconds, day)
        lst.append(str(days) + "d")

    if seconds >= hour:
        hours, seconds = divmod(seconds, hour)
        lst.append(str(hours) + "h")

    if seconds >= minute:
        minutes, seconds = divmod(seconds, minute)
        lst.append(str(minutes) + "m")

    if seconds > 0:
        lst.append(str(seconds) + "s")

    return " ".join(lst)


def time_for_human(time_val):
    second = 1
    minute = second * 60
    hour = minute * 60
    day = hour * 24
    days_8 = day * 8

    if isinstance(time_val, datetime):
        time_val = time_val.timestamp()

    if isinstance(time_val, str):
        time_val = time.mktime(time.strptime(time_val, "%Y-%m-%d %H:%M:%S"))

    now = time.time()
    duration = now - time_val

    if duration < minute:
        return "剛剛"
    elif duration < hour:
        return str(math.floor(duration / minute)) + "分鐘前"
    elif duration < day:
        return str(math.floor(duration / hour)) + "小時前"
    elif duration < days_8:
        return str(math.floor(duration / day)) + "天前"
    else:
        return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time_val))


if __name__ == "__main__":
    print(human_datetime())
    print(human_date())
    print(human_time())
    print(human_seconds_time(10))
    print(seconds_for_human(86400 + 3600))
    print(parse_time("2022-10-17 13:33:11"))
    print(time_for_human(1665381270))
    print(time_for_human(time.time() - 100))
    print(time_for_human("2022-10-17 13:33:11"))