import requests
import datetime
import model

# file_size if byte


def download_file(servers, chunk_size=64 * 1024, file_size=1 * 1024 * 1024):
    for server in servers:
        url = server["url"]
        server_name = server["name"]
        chunk_read = 0
        s_time = datetime.datetime.now()
        e_time = None
        with requests.get(url, stream=True) as r:
            for chunk in r.iter_content(chunk_size):
                if chunk_read >= file_size:
                    e_time = datetime.datetime.now()
                    break
                if chunk:
                    chunk_read += len(chunk)
        duration = (e_time - s_time).total_seconds()
        speed = chunk_read / duration / 1024 / 1024 * 8  # mega bit
        model.add_record(server_name, speed)
        # print(now_timestamp{} MB download".format(chunk_read / 1024 / 1024))
        # print("{} seconds".format(duration / 1))
        # return speed