#!/usr/bin/env python3
#-*- coding:utf-8 -*-

import http.cookiejar
import urllib.request
import urllib.parse
import config
from bs4 import BeautifulSoup

cookiejar = http.cookiejar.CookieJar()

opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cookiejar))
urllib.request.install_opener(opener)

data = urllib.parse.urlencode({'username': config.username, 'password': config.password})
data = data.encode('utf-8')

request = urllib.request.Request(config.moodleurl + 'login/index.php')

# Login
f = urllib.request.urlopen(request, data)

# Scrapen starten
f = urllib.request.urlopen(config.moodleurl + 'user/index.php?perpage=999999&mode=1&id=' + str(config.courseid))
soup = BeautifulSoup(f.read())

# iterieren und speichern
users = dict()
for cell in soup.find_all('td', class_='content'):
    thisuser = cell.find_all('div', class_='username')
    if thisuser:
        thisuser = thisuser[0]
        if thisuser:
            thisuser = thisuser.string

    thismail = cell.find_all('a')
    if thismail:
        thismail = thismail[0]
        if thismail:
            thismail = thismail.string
    
    users[thisuser] = thismail

f = open('data/users.txt', mode='w', encoding='utf-8')
f.write(str(users))
f.close()