#!/usr/bin/env  python2
# -*- coding: utf-8 -*-

__license__ = 'GPL v3'
__copyright__ = '2010, matek09, matek09@gmail.com; 2012-2013, admroz, a.rozewicki@gmail.com'

import re
from calibre.web.feeds.news import BasicNewsRecipe
from calibre.ptempfile import PersistentTemporaryFile
from string import capwords
import datetime
from calibre.ebooks.BeautifulSoup import BeautifulSoup


class Newsweek(BasicNewsRecipe):

    # how many issues to go back, 0 means get the most current one
    BACK_ISSUES = 1

    EDITION = '0'
    DATE = None
    YEAR = datetime.datetime.now().year

    title = u'Newsweek Polska'
    __author__ = 'matek09, admroz'
    description = 'Weekly magazine'
    encoding = 'utf-8'
    language = 'pl'
    remove_javascript = True

    temp_files = []
    articles_are_obfuscated = True

    #
    # Parses article contents from one page
    #
    def get_article_divs(self, css, main_section):
        strs = []

        # get all divs with given css class
        article_divs = main_section.findAll('div', attrs={'class': css})
        for article_div in article_divs:

            # remove sections like 'read more...' etc.
            for p in article_div.findAll('p'):

                if p.find('span', attrs={'style': 'color: #800000; font-size: medium;'}):
                    p.extract()
                    continue

                if p.find('span', attrs={'style': 'font-size: medium; color: #800000;'}):
                    p.extract()
                    continue

                if p.find('span', attrs={'style': 'font-size: medium;'}):
                    p.extract()
                    continue

                if p.find('span', attrs={'style': 'color: #800000;'}):
                    p.extract()
                    continue

                obj = p.find('object')
                if obj:
                    obj.extract()
                    continue

                strong = p.find('strong')
                if strong:
                    newest = re.compile(
                        "Tekst pochodzi z najnowszego numeru Tygodnika Newsweek")
                    if newest.search(str(strong)):
                        strong.extract()
                        continue

                itunes = p.find('a')
                if itunes:
                    reurl = re.compile("itunes.apple.com")
                    if reurl.search(str(itunes['href'])):
                        p.extract()
                        continue

                imagedesc = p.find('div', attrs={'class': 'image-desc'})
                if imagedesc:
                    redesc = re.compile("Okładka numeru")
                    if (redesc.search(str(imagedesc))):
                        p.extract()
                        continue

            # get actual contents
            for content in article_div.contents:
                strs.append("".join(str(content)))

        # return contents as a string
        return unicode("".join(strs))

    #
    # Articles can be divided into several pages, this method parses them recursevely
    #
    def get_article_page(self, br, url, page):
        br.open(url)
        source = br.response().read()

        html = ''

        matches = re.search(r'<article>(.*)</article>', source, re.DOTALL)
        if matches is None:
            print "no article tag found, returning..."
            return

        main_section = BeautifulSoup(matches.group(0))

        if page == 0:
            title = main_section.find('h1')
            html = html + unicode(title)

            authors = ''
            authorBox = main_section.find('div', attrs={'class': 'AuthorBox'})
            if authorBox is not None:
                authorH4 = authorBox.find('h4')
                if authorH4 is not None:
                    authors = self.tag_to_string(authorH4)
            html = html + unicode(authors)

            info = main_section.find('p', attrs={'class': 'lead'})
            html = html + unicode(info)

        html = html + self.get_article_divs(
            '3917dc34e07c9c7180df2ea9ef103361845c8af42b71f51b960059226090a1ac articleStart', main_section)
        html = html + self.get_article_divs(
            '3917dc34e07c9c7180df2ea9ef103361845c8af42b71f51b960059226090a1ac', main_section)

        nextPage = main_section.find('a', attrs={'class': 'next'})
        if nextPage:
            html = html + self.get_article_page(br, nextPage['href'], page + 1)

        return html

    #
    # Parses each article
    #
    def get_obfuscated_article(self, url):
        br = self.get_browser()
        html = self.get_article_page(br, url, 0)
        self.temp_files.append(PersistentTemporaryFile('_temparse.html'))
        self.temp_files[-1].write(html)
        self.temp_files[-1].close()
        return self.temp_files[-1].name

    #
    # Goes back given number of issues. It also knows how to go back
    # to the previous year if there are not enough issues in the current one
    #
    def find_last_issue(self, archive_url):
        archive_soup = self.index_to_soup(archive_url, True)

        # workaround because html is so messed up that find() method on soup returns None
        # and therefore we need to extract subhtml that we need
        matches = re.search(
            r'<ul class="rightIssueList">(.*?)</ul>', archive_soup, re.DOTALL)
        if matches is None:
            return

        subSoup = BeautifulSoup(matches.group(0))
        issueLinks = subSoup.findAll('a')

        # check if need to go back to previous year
        if len(issueLinks) > self.BACK_ISSUES:
            link = issueLinks[self.BACK_ISSUES]
            self.EDITION = link['href'].replace(
                'http://www.newsweek.pl/wydania/', '')
            self.index_to_soup(
                'http://www.newsweek.pl/wydania/' + self.EDITION)
        else:
            self.BACK_ISSUES = self.BACK_ISSUES - len(issueLinks)
            self.YEAR = self.YEAR - 1
            self.find_last_issue(archive_url + '/' + str(self.YEAR))

    #
    # Looks for the last issue which we want to download. Then goes on each
    # section and article and stores them (assigning to sections)
    #
    def parse_index(self):
        archive_url = 'http://www.newsweek.pl/wydania/archiwum'
        self.find_last_issue(archive_url)
        soup = self.index_to_soup(
            'http://www.newsweek.pl/wydania/' + self.EDITION)

        matches = re.search(
            r'<div class="Issue-Entry">(.*)ARTICLE_BOTTOM', soup.prettify(), re.DOTALL)
        if matches is None:
            return

        main_section = BeautifulSoup(matches.group(0))

        # date
        matches = re.search(r'(\d{2}-\d{2}-\d{4})',
                            self.tag_to_string(main_section.find('h2')))
        if matches:
            self.DATE = matches.group(0)

        # cover
        img = main_section.find(lambda tag: tag.name == 'img' and tag.has_key(  # noqa
            'alt') and tag.has_key('title'))
        self.cover_url = img['src']
        feeds = []
        articles = {}
        sections = []

        # sections
        for sectionUl in main_section.findAll('ul', attrs={'class': 'whatsin'}):

            # section header
            header = sectionUl.find('li', attrs={'class': 'header'})
            if header is None:
                continue

            section = capwords(self.tag_to_string(header))

            # articles in section
            articleUl = sectionUl.find('ul')
            if articleUl is None:
                continue

            for articleLi in articleUl.findAll('li'):
                # check if article is closed which should be skipped
                closed = articleLi.find('span', attrs={'class': 'closeart'})
                if closed is not None:
                    continue

                article = self.create_article(articleLi)
                if article is None:
                    continue

                if articles.has_key(section):  # noqa
                    articles[section].append(article)
                else:
                    articles[section] = [article]
                    sections.append(section)

        for section in sections:
            #             print("%s -> %d" % (section, len(articles[section])))
            #
            #             for article in articles[section]:
            #                 print(" - %s" % article)

            feeds.append((section, articles[section]))

        return feeds

    #
    # Creates each article metadata (skips locked ones). The content will
    # be extracted later by other method (get_obfuscated_article).
    #
    def create_article(self, articleLi):
        article = {}

        a = articleLi.find('a')
        if a is None:
            return None

        article['title'] = self.tag_to_string(a)
        article['url'] = a['href']
        article['date'] = self.DATE
        article['description'] = ''

        return article
