from datetime import datetime
import os
import random
import re
import sys
import requests
import json
sys.path.append(os.getcwd())



class urlManage():

    # 随机生成id
    @classmethod
    def random_id(cls):
        now = datetime.now()
        rand_num = random.randint(10000, 99999)
        oss_id = "{}{}".format(now.strftime("%Y%m%d%H%M%S"), rand_num)
        return oss_id

    @classmethod
    def get_content_id(cls, link, channel):
        headers = {
            "User-Agent": "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1"
        }
        share_url = link
        resp = requests.get(share_url, headers=headers, timeout=10, verify=False)
        url = resp.url
        if url:
            if channel == "douyin" or channel == "xigua":
                pattern = r'/(\d+)/\?'
            elif channel == "kuaishou":
                pattern = r'/photo/(\w+)\?'
            else:
                return None
            match = re.search(pattern, url)
            if match:
                return match.group(1)
            else:
                return None
        else:
            return None

    @classmethod
    def extract_link(cls, data_link):
        try:
            json_data = json.loads(data_link)
            content = json_data.get('content', '')
        except json.decoder.JSONDecodeError:
            content = data_link

        # 使用正则表达式提取链接
        link = re.search(r'https?://\S+', content)
        if link:
            return link.group()
        else:
            return None

    @classmethod
    def url_manage(cls, data_link, channel):
        link = cls.extract_link(data_link)
        if link:
            content_id = cls.get_content_id(link, channel)
            if content_id:
                return content_id
            else:
                return None
        else:
            return None