import requests
import gzip
import os

# 定义文件下载链接和对应的保存路径
files = {
    #'goodreads_reviews_children.json.gz': 'https://datarepo.eng.ucsd.edu/mcauley_group/gdrive/goodreads/byGenre/goodreads_reviews_children.json.gz',
     'goodreads_books_history_biography.json.gz': 'https://datarepo.eng.ucsd.edu/mcauley_group/gdrive/goodreads/byGenre/goodreads_books_history_biography.json.gz',
     'goodreads_books_comics_graphic.json.gz': 'https://datarepo.eng.ucsd.edu/mcauley_group/gdrive/goodreads/byGenre/goodreads_books_comics_graphic.json.gz',
     'goodreads_books_mystery_thriller_crime.json.gz': 'https://datarepo.eng.ucsd.edu/mcauley_group/gdrive/goodreads/byGenre/goodreads_books_mystery_thriller_crime.json.gz'
}

download_folder_name = ["../../goodreads_history/raw", "../../goodreads_comics/raw", "../../goodreads_crime/raw"]

def download_and_extract(filename, url, folder):

    if not os.path.exists(folder):
        os.makedirs(folder)
    
    response = requests.get(url)
    gz_path = os.path.join(folder, filename)
    
    with open(gz_path, 'wb') as f:
        f.write(response.content)
    
    json_path = gz_path.replace('.gz', '')
    with gzip.open(gz_path, 'rb') as f_in:
        with open(json_path, 'wb') as f_out:
            f_out.write(f_in.read())
    
    print(f"{filename} 下载并解压到 {folder} 完成")

for folder, url in zip(download_folder_name,files.values()):
    folder_name =  folder
    download_and_extract(os.path.basename(url), url, folder_name)