#!/usr/bin/env python
# -*- encoding: utf-8 -*-
'''
@Contact :   liuyuqi.gov@msn.cn
@Time    :   2020/09/07 16:38:41
@License :   Copyright © 2017-2020 liuyuqi. All Rights Reserved.
@Desc    :   驾考报名爬虫
'''

import os
import sys
import re
import time
import logging
from selenium import webdriver
import pandas as pd


class Enum(tuple):
    __getattr__ = tuple.index


BrowserType = Enum(['FIREFOX', 'CHROME', 'IE', 'SAFARI', 'PHANTOMJS'])


class CrawlCar():
    def __init__(self, site, save_folder="data", browser=BrowserType.FIREFOX, driver=None):
        self.__site = site
        self.__save_folder = save_folder
        self.__chapter_list = []

        if not os.path.exists(self.__save_folder):
            os.mkdir(self.__save_folder)

        if BrowserType.FIREFOX == browser:
            self.__browser = webdriver.Firefox()
        elif BrowserType.CHROME == browser:
            option = webdriver.ChromeOptions()
            option.add_argument("lang=zh_CN.UTF-8")
            option.add_argument(
                "User-Agent=Mozilla/5.0 (Linux; U; Android 8.1.0; zh-cn; BLA-AL00 Build/HUAWEIBLA-AL00) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 MQQBrowser/8.9 Mobile Safari/537.36")
            # option.add_argument("--headless")

            # 禁止加载图片
            prefs = {
                'profile.default_content_setting_values.images': 2
            }
            option.add_experimental_option('prefs', prefs)
            self.__browser = webdriver.Chrome(
                executable_path=driver, options=option)
            # window.navigater.webdriver 取消webdriver标志
            self.__browser.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
                "source": """
                    Object.defineProperty(navigator, 'webdriver', {
                    get: () => undefined
                    })
                """})
        elif BrowserType.IE == browser:
            self.__browser = webdriver.Ie(driver)
        elif BrowserType.SAFARI == browser:
            self.__browser = webdriver.Safari(driver)
        elif BrowserType.PHANTOMJS == browser:
            self.__browser = webdriver.PhantomJS(driver)
        else:
            raise TypeError('UNKNOWN BROWSER TYPE: %s' % browser)
        logging.basicConfig(
            format='[%(asctime)s] %(levelname)s::%(module)s::%(funcName)s() %(message)s', level=logging.INFO)

    def __del__(self):
        self.__browser.quit()

    def getLink(self):
        self.__browser.implicitly_wait(10)
        self.__browser.get(self.__site)  # 加载页面
        link_path = self.__save_folder + "/link.csv"
        if not os.path.exists(link_path):
            for i in range(5):
                monthData = self.__browser.find_elements_by_css_selector(
                    "#querylist li a")
                # # 获取本页所有月份
                for i in monthData:
                    print(i.text, i.get_attribute("href"))
                    link.append([i.text, i.get_attribute("href")])
                # 获取下一步按钮，点击
                self.__browser.find_element_by_xpath(
                    '//*[@id="pppagination"]/ul/li[2]/a').click()
                # cookie = getCookie()
                # print(cookie)
            link = pd.DataFrame(link)
            link.to_csv(link_path, header=False)
        else:
            link = pd.read_csv(link_path, names=["month", "link"])
        return link

    def downlaod(self, url, save_path):
        pass

    def getCookie(self):
        cookie = self.__browser.get_cookies()
        cookie_dict = []
        for c in cookie:
            ck = "{0}={1};".format(c['name'], c['value'])
            cookie_dict.append(ck)
        return cookie_dict

    def crawl(self):
        link_path = self.__save_folder + "/link.csv"
        link = pd.read_csv(link_path, names=["month", "link"])
        for i in range(len(link)):
            link1 = link.loc[i]["link"]    # 链接
            month1 = link.loc[i]["month"]  # 月份
            if not os.path.exists(self.__save_folder + "/report" + month1 + ".csv"):
                self.__browser.implicitly_wait(10)
                self.__browser.get(link1)
                # # 找出多少条，多少页
                try:
                    text = self.__browser.find_element_by_xpath(
                        '//*[@id="pagination"]/span').text  # 有异常
                    # 共2391条记录 1/120页
                    pagesize = re.split(
                        "[/页]", re.search("/.*页  ", text).group())[1]
                    reportData = pd.DataFrame(
                        columns=["date", "place", "course1", "course2", "course3", "course4"])
                    for i in range(int(pagesize)):
                        # 找出本页table
                        trlist = self.__browser.find_elements_by_tag_name("tr")
                        for row in trlist:
                            tdlist = row.find_elements_by_tag_name("td")
                            tmp = []
                            for col in tdlist:
                                tmp.append(col.text)
                            reportData = reportData.append(
                                pd.Series(tmp, index=reportData.columns), ignore_index=True)  # 增加一行

                        # 点击下一步 ，这里有一个问题，第一页 span/a[2] 第二页之后就是 span/a[3]
                        if i > 0:
                            self.__browser.find_element_by_xpath(
                                '//*[@id="pagination"]/span/a[3]').click()
                        else:
                            self.__browser.find_element_by_xpath(
                                '//*[@id="pagination"]/span/a[2]').click()
                except Exception as e:
                    print(e)
                reportData.to_csv(self.__save_folder +
                                  "/report" + month1 + ".csv", header=False)

    def merge(self):
        '''
        合并多个csv文件
        '''
        df = pd.DataFrame()
        for parent, dirnames, filenames in os.walk(self.__save_folder):
            for filename in filenames:
                if filename.startswith("report"):
                    df1 = pd.read_csv(os.path.join(parent, filename))
                    df = pd.concat([df, df1])
        df = df.drop(df[df["日期"] == "日期"].index).reset_index()
        df.to_csv(self.__save_folder + "res.csv", header=False)

    def start(self):
        self.crawl()