# -*- coding: utf-8 -*-

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function

import requests, os

headers = { 'User-Agent' : 'Mozilla/5.0' }
cwd = os.getcwd()
result_dir = cwd + '/download/'
list_file = cwd + '/list.txt'
done_file = 'done.txt'
fail_file = 'fail.txt'

def fetchImage(url):
    path_relative = url.replace('http://', '').replace('https://', '')
    try:
        res = requests.get(url, headers = headers)
        image = res.content
        paths = os.path.split(path_relative)[0].split('/')
        path_current = result_dir
        for path in paths:
            path_current += path + '/'
            if not os.path.exists(path_current):
                os.mkdir(path_current)
        with open('{result_dir}{path_relative}'.format(result_dir = result_dir, path_relative = path_relative), 'wb') as f:
            f.write(image)
    except:
        return False
    return True

def getUrl():
    result = ''
    with open(list_file, 'r') as f:
        url_list = f.read().split('\n')
    result = url_list.pop(0)
    with open(list_file, 'w') as f:
        f.write('\n'.join(url_list))
    return result

def saveUrl(file_name, url):
    with open(file_name, 'a') as f:
        f.write(url + '\n')

def download():
    url = getUrl()
    while url != '':
        if fetchImage(url):
            saveUrl(done_file, url)
            print('done ' + url)
        else:
            saveUrl(fail_file, url)
            print('fail ' + url)
        url = getUrl()

download()