from selenium.webdriver.common.action_chains import ActionChains
from selenium.common.exceptions import NoSuchElementException, TimeoutException
from selenium import webdriver
import random
import time


def reply(driver, url):
    while True:
        reply_page_url = get_reply_page_url(driver, url)
        try:
            driver.get(reply_page_url)
        except TimeoutException:
            continue
        else:
            content = get_reply_content(driver)
            try:
                temp_driver = webdriver.Chrome()
                temp_driver.get('http://fanyi.youdao.com/')
                input_content = temp_driver.find_element_by_id('inputOriginal')
                input_content.send_keys(content)
                time.sleep(3)
                content = temp_driver.find_element_by_xpath("//div[@id='transTarget']/p/span").text
                input_delete = temp_driver.find_element_by_id('inputDelete')
                ActionChains(temp_driver).move_to_element(input_delete).click().perform()
                input_content.send_keys(content)
                time.sleep(3)
                content = temp_driver.find_element_by_xpath("//div[@id='transTarget']/p/span").text
                temp_driver.quit()
            except Exception as e:
                print(e)
            if not content == '#':
                if start_reply(driver, content):
                    break
    time.sleep(2)


# 进行回复动作
def start_reply(driver, content):
    try:
        message = driver.find_element_by_id('vmessage')
    except NoSuchElementException:
        return False
    else:
        ActionChains(driver).move_to_element(message).perform()
        time.sleep(6)
        ActionChains(driver).double_click(message).perform()
        time.sleep(3)
        message.send_keys(content)
        print(content)
        time.sleep(1)
        element = driver.find_element_by_id('vreplysubmit')
        ActionChains(driver).move_to_element(element).click().perform()
        return True


# 读取从上往下第二条评论的内容，并返回
def get_reply_content(driver):
    i = 4
    while i >= 0:
        r = random.randint(3, 12)
        r = str(r)
        try:
            element = driver.find_element_by_xpath(
                "//div[@id='postlist']/div[" + r + "]/table/tbody/tr/td[2]/div[2]/div/div/table/tbody/tr/td")
        except NoSuchElementException:
            i = i - 1
        else:
            content = element.text
            if '发表于' not in content and '本贴最后由' not in content:
                return content
            else:
                i = i - 1
    return '#'


# 取得mod发布页面的最后一个页面的url
def get_reply_page_url(driver, url):
    driver.get(url)
    r = random.randint(0, 24)
    r = str(r)
    element = driver.find_element_by_xpath("//form[@id='moderate']/table/tbody[last()-" + r + "]/tr/th/a[3]")
    return element.get_attribute('href')