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

from spiders.base import BaseSpider
from grab.spider import  Task
from grab import Grab
import logging
import random
import re
import json
from database import Candidate


class Parser(BaseSpider):

    initial_urls = ['https://recruiter.totaljobs.com/login']

    def task_initial(self, grab, task):
        grab.setup(debug_post=True)
        grab.setup(log_dir='log')
        fields = grab.doc.form_fields()


        url = 'https://recruiter.totaljobs.com/login'
        data = {'__EVENTTARGET': '',
                '__EVENTARGUMENT': '',
                '__VIEWSTATE': fields['__VIEWSTATE'],
                'pagebody_0$left_0$txtUsername': self.settings.login,
                'pagebody_0$left_0$txtPassword': self.settings.password,
                'pagebody_0$left_0$btnSubmit': '',
                'elqFormName':	'RecruiterLoginAndRegister',
                'elqSiteID': fields['elqSiteID'],
                'elqDefaultTargetURL': '',
                'elqPost': '',
                'elqCustomerGUID': '',
                'elqCookieWrite': '0',
                'pagebody_0$right_0$chkThirdPartyMarketing': 'on'
        }
        grab.setup(post=data, url=url)
        yield Task('check', grab=grab)


    def task_check(self, grab, task):
        if not grab.doc.text_search(u'FormsLogout.aspx'):
            logging.error('Can not log in!')
        url = 'https://recruiter.totaljobs.com/Recruitment/CandidateSearch/CandidateSearch.aspx'
        grab.setup(url=url)
        yield Task('advanced_search', grab=grab)


    def task_advanced_search(self, grab, task):
        settings = self.settings

        grab.doc.set_input('ctl00$cphCentralPanel$ucSearchPart$ddlUpdated', str(settings.time_limit))

        grab.doc.submit(make_request=False)

        
        yield Task('candidates', grab=grab)


    def task_candidates(self, grab, task):
        xpath = '//div[@class="row card-row"]'
        for s in grab.doc.select(xpath):
            name_xpath = './/a[@class="candidate-lnk"]'
            email_xpath = './/a[contains(@class,"email-candidate")]'
            name = s.select(name_xpath).text()
            email = s.select(email_xpath).text()
            if name.startswith('Candidate'):
                logging.debug('Noname candidate: %s' % name)
                continue
            if Candidate.select().where(Candidate.name == name).exists():
                logging.debug('Candidate: %s already exists' % name)
            else:
                self.num += 1
                c = Candidate(name=name, email=email)
                c.save()
                limit = self.settings.limit
                if limit and self.num > limit:
                    self.stop()
                    logging.debug('Limit %s has been reached. Script is stopping' % limit)

        next_page = grab.doc.select('//li[@class="paging-forward"]')
        if next_page:
            link = next_page.select('./a/@href').text()
            next_page_num = re.search('(\d+)\'\)$', link)
            #fields = grab.doc.form_fields()
            data = {
                    '__EVENTTARGET': 'ctl00$cphCentralPanel$ucSearchResults$pgrPager',
                    '__EVENTARGUMENT': str(next_page_num.group(1)),
                    'ctl00$cphCentralPanel$NewOrExistingSavedSearch':
                        'rdoNewSavedSearch'
                    }
            removed_fields = ('ctl00$cphCentralPanel$ucSearchResults$ucRefineSearch$ddlIndustries',
            'ctl00$cphCentralPanel$ucSearchResults$ucRefineSearch$ddlMaxValue',
            'ctl00$cphCentralPanel$ucSearchResults$ucRefineSearch$ddlMinValue',
            'ctl00$cphCentralPanel$ucSearchResults$ucRefineSearch$ddlResidence',
            'ctl00$cphCentralPanel$ddlExistingSearches',
            'ctl00$cphCentralPanel$ucSearchResults$ucRefineSearch$ddlLanguages',
            'ctl00$cphCentralPanel$btnSave')

            
            grab.doc.submit(make_request=False, extra_post=data)
            new_post = []
            for tuple in grab.config['post']:
                if not tuple[0] in removed_fields:
                    new_post.append(tuple)
            grab.config['post'] = new_post

            yield Task('candidates', grab=grab)