import requests
import re
import pygame
import time

header = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) '
            'Chrome/74.0.3729.157 ''Safari/537.36 '}


class Bili(object):
  def __init__(self, url):
    self.url = url
    self.max_page = 0
    self.the_time = list()
    self.sum_time = 0
    self.b_url = 'https://www.bilibili.com/video/av' + re.search(r'av(\d+)', url).group(1) + '?p='

  @staticmethod
  def get_html(acp_url):
    try:
      r = requests.get(acp_url, headers=header)
      r.raise_for_status()
      r.encoding = r.apparent_encoding
      return r.text
    except Exception as result:
      print("get_html:", result)
      return ""

  def parse_max_page(self):
    self.max_page = int(re.findall(r'videos":(.+?),', self.get_html(self.url))[0])

  def parse_time(self, se_url):
    text = self.get_html(se_url)
    single_time = re.findall(r'"timelength":(\d+),', text)[0][:-3]
    return single_time

  def get_time(self):
    for i in range(self.max_page + 1):
      s_url = self.b_url + str(i)
      ret = self.parse_time(s_url)
      self.the_time.append(ret)
      print("第%d頁 time=%s" % (i, ret))
    for each in self.the_time:
      self.sum_time += int(each)
    print("sum_time:%.3s h" % str(self.sum_time / 60))
 
  def main(self):
    self.parse_max_page()
    self.get_time()


if __name__ == '__main__':
  i_url = input("請輸入鏈接地址[要以+結(jié)尾]：")
  Bili(i_url).main()