import requests


def bvid2cid(bvid):
    url = f"https://api.bilibili.com/x/player/pagelist?bvid={bvid}"
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36 Edg/127.0.0.0',

    }
    try:
        response = requests.get(url, headers=headers)
        response.raise_for_status()  # 检查请求是否成功
        data = response.json()
        if 'data' in data and len(data['data']) > 0:
            cid = data['data'][0]['cid']
            return cid
        else:
            raise ValueError("Data not found in response")
    except requests.RequestException as e:
        print(f"Request error for bvid {bvid}: {e}")
    except ValueError as e:
        print(f"Value error for bvid {bvid}: {e}")
    return None


def main():
    with open('bvid.txt', 'r') as file:
        bvids = file.read().splitlines()

    with open('cid.txt', 'w') as file:
        for bvid in bvids:
            cid = bvid2cid(bvid)
            if cid:
                file.write(f' {cid}\n')
            else:
                file.write(f'{bvid}: Error fetching cid\n')


if __name__ == '__main__':
    main()