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

from selenium import webdriver
import time
import random
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.action_chains import ActionChains

username = "" 
password = "" 
driver = webdriver.Chrome()
baseUrl = 'https://www.v2ex.com' 
loginUrl = '/signin' 
daliyUrl = '/mission/daily'   

driver.get(baseUrl)
print 'Enter ' + driver.title

time.sleep(random.randint(4,9))
driver.get(baseUrl + loginUrl)

print 'Enter ' + driver.title

tr_elems = driver.find_element_by_id('Main').find_element_by_tag_name('form').find_elements_by_tag_name('tr')

for index, tr_elem in enumerate(tr_elems):
    if index == 0:
        td_elems = tr_elem.find_elements_by_tag_name('td')
        td_name = td_elems[0]
        td_input = td_elems[1].find_element_by_tag_name('input')
        ActionChains(driver).move_to_element(td_input).perform()

        print td_name.text
        td_input.send_keys(username)
    if index == 1:
        td_elems = tr_elem.find_elements_by_tag_name('td')
        td_name = td_elems[0]
        td_input = td_elems[1].find_element_by_tag_name('input')
        ActionChains(driver).move_to_element(td_input).perform()

        print td_name.text
        td_input.send_keys(password)
    if index == 2:
        td_elems = tr_elem.find_elements_by_tag_name('td')
        td_input = td_elems[1].find_elements_by_tag_name('input')[1]
        ActionChains(driver).move_to_element(td_input).perform()

        td_input.click()

# 登录成功就切到新页面 
try:
    mainPage = WebDriverWait(driver, 20).until(
        EC.presence_of_element_located((By.ID, "Rightbar"))
    )
except:
    print "login error" else:
    print 'login ok. Enter ' + driver.title

try:
    dailyButton = WebDriverWait(driver, 1).until(
        EC.presence_of_element_located((By.XPATH, "//a[contains(text(),'领取今日的登录奖励')]"))
    )
except:
    print "no daily corn" else:
    dailyButton = driver.find_element_by_xpath("//a[contains(text(),'领取今日的登录奖励')]")
    ActionChains(driver).move_to_element(dailyButton).click(dailyButton).perform()

time.sleep(random.randint(4,9))
print 'Enter ' + driver.title

try:
    dailyButton = WebDriverWait(driver, 20).until(
        EC.presence_of_element_located((By.XPATH, "//input[contains(@value,'领取')]"))
    )
except:
    print "no daily corn"   
else:
    print "get daily corn"
  	dailyButton = driver.find_element_by_xpath("//input[contains(@value,'领取')]")
    ActionChains(driver).move_to_element(dailyButton).click(dailyButton).perform()