# coding=utf-8

import os

import re

from selenium import webdriver

import selenium.webdriver.support.ui as ui

import time

from datetime import datetime

import IniFile

# from threading import Thread

from pyquery import PyQuery as pq

import LogFile

import mongoDB

import urllib

class sogouSpider(object):

    def __init__(self):

        logfile = os.path.join(os.path.dirname(os.getcwd()), time.strftime('%Y-%m-%d') + '.txt')

        self.log = LogFile.LogFile(logfile)

        configfile = os.path.join(os.path.dirname(os.getcwd()), 'setting.conf')

        cf = IniFile.ConfigFile(configfile)

        self.webSearchUrl_list = cf.GetValue("sogou", "webSearchUrl").split(';')

        self.keyword_list = cf.GetValue("section", "information_keywords").split(';')

        self.db = mongoDB.mongoDbBase()

        self.start_urls = []

        for word in self.keyword_list:

            keyword = urllib.quote(word)

            for url in self.webSearchUrl_list:

                self.start_urls.append(url + keyword)

        self.driver = webdriver.PhantomJS()

        self.wait = ui.WebDriverWait(self.driver, 2)

        self.driver.maximize_window()

    def Comapre_to_days(self,leftdate, rightdate):

        '''

        比较连个字符串日期，左边日期大于右边日期多少天

        :param leftdate: 格式：2017-04-15

        :param rightdate: 格式：2017-04-15

        :return: 天数

        '''

        l_time = time.mktime(time.strptime(leftdate, '%Y-%m-%d'))

        r_time = time.mktime(time.strptime(rightdate, '%Y-%m-%d'))

        result = int(l_time - r_time) / 86400

        return result

    def date_isValid(self, strDateText):

        '''

        判断日期时间字符串是否合法：如果给定时间大于当前时间是合法，或者说当前时间给定的范围内

        :param strDateText: 四种格式 '慧聪网 7小时前'; '新浪游戏 29分钟前' ; '中国行业研究网 2017-6-13'

        :return: True:合法；False:不合法

        '''

        currentDate = time.strftime('%Y-%m-%d')

        source = strDateText.split(' ')[0]

        if strDateText.find('分钟前') > 0:

            return True, source, currentDate

        elif strDateText.find('小时前') > 0:

            datePattern = re.compile(r'\d{1,2}')

            ch = int(time.strftime('%H'))  # 当前小时数

            strDate = re.findall(datePattern, strDateText)

            if len(strDate) == 1:

                if int(strDate[0]) <= ch:  # 只有小于当前小时数，才认为是今天

                    return True, source, currentDate

        else:

            datePattern = re.compile(r'\d{4}-\d{1,2}-\d{1,2}')

            strDate = re.findall(datePattern, strDateText)

            if len(strDate) == 1:

                if self.Comapre_to_days(currentDate, strDate[0]) == 0:

                    return True, source, currentDate

        return False, '', ''

    def log_print(self, msg):

        '''

        #         日志函数

        #         :param msg: 日志信息

        #         :return:

        #         '''

        print '%s: %s' % (time.strftime('%Y-%m-%d %H-%M-%S'), msg)

    def scrapy_date(self):

        strsplit = '------------------------------------------------------------------------------------'

        for link in self.start_urls:

            self.driver.get(link)

            selenium_html = self.driver.execute_script("return document.documentElement.outerHTML")

            doc = pq(selenium_html)

            infoList = []

            self.log.WriteLog(strsplit)

            self.log_print(strsplit)

            Elements = doc('div[class="news151102"]')

            for element in Elements.items():

                strdate = element('p[class="news-from"]').text().encode('utf8').strip()

                flag, source, date = self.date_isValid(strdate)

                if flag:

                    title = element('h3[class="vrTitle"]').find('a').text().encode('utf8').strip()

                    for keyword in self.keyword_list:

                        if title.find(keyword) > -1:

                            url = element('h3[class="vrTitle"]').find('a').attr('href')

                            dictM = {'title': title, 'date': date,

                             'url': url, 'keyword': keyword, 'introduction': title, 'source': source}

                            infoList.append(dictM)

                            self.log.WriteLog('title:%s' % title)

                            self.log.WriteLog('url:%s' % url)

                            self.log.WriteLog('source:%s' % source)

                            self.log.WriteLog('kword:%s' % keyword)

                            self.log.WriteLog(strsplit)

                            self.log_print('title:%s' % dictM['title'])

                            self.log_print('url:%s' % dictM['url'])

                            self.log_print('date:%s' % dictM['date'])

                            self.log_print('source:%s' % dictM['source'])

                            self.log_print('kword:%s' % dictM['keyword'])

                            self.log_print(strsplit)

                            break

            if len(infoList)>0:

                self.db.SaveInformations(infoList)

        self.driver.close()

        self.driver.quit()

obj = sogouSpider()

obj.scrapy_date()