#!/usr/bin/env python
# vim:fileencoding=utf-8
from __future__ import absolute_import, division, print_function, unicode_literals

__license__ = 'GPL v3'
__copyright__ = '2015, Kovid Goyal <kovid at kovidgoyal.net>'

from collections import defaultdict

from calibre.web.feeds.news import BasicNewsRecipe


def classes(classes):
    q = frozenset(classes.split(' '))
    return dict(attrs={
        'class': lambda x: x and frozenset(x.split()).intersection(q)})


class ForeignPolicy(BasicNewsRecipe):
    title = u'Foreign Policy'
    language = 'en'
    __author__ = 'Kovid Goyal'
    description = 'International News'
    no_stylesheets = True
    remove_javascript = True
    remove_empty_feeds = True
    resolve_internal_links = True
    encoding = 'utf-8'
    remove_attributes = ['style', 'height', 'width']

    extra_css = '''
        img {display:block; margin:0 auto;}
        .department-meta { font-size:small; color:#404040; }
        .dek-heading, .author-bio, .date-time { font-size:small; color:#202020; }
        .figure-image, .caption, .wp-caption { font-size:small; text-align:center; }
    '''

    keep_only_tags = [
        dict(name='article', attrs={'class':'article'})
    ]
    remove_tags = [
        dict(name=['meta', 'link', 'svg', 'button', 'iframe', 'aside']),
        classes(
            'share-links content-ungated related-articles fp-lightbox--overlay more-text myfp-article '
            'editors-note-in-post--v2 author-photo related-articles-carousel sidebar-box_right '
        ),
    ]
    remove_tags_after = [classes('post-content-main')]

    recipe_specific_options = {
        'issue': {
            'short': 'Enter the Issue ID you want to download ',
            'long': 'For example, 411131563'
        }
    }

    def parse_index(self):
        issue_url = 'https://foreignpolicy.com/the-magazine'
        d = self.recipe_specific_options.get('issue')
        if d and isinstance(d, str):
            issue_url = issue_url + '/?issue_id=' + d

        soup = self.index_to_soup(issue_url)
        img = soup.find('img', attrs={'src': lambda x: x and '-cover' in x})
        if img:
            self.cover_url = img['src'].split('?')[0] + '?w=800?quality=90'
        current_section = None
        feeds_dict = defaultdict(list)
        soup = soup.find('main')
        for x in soup.findAll(name=('h2', 'h3')):
            if x.name == 'h2':
                current_section = self.tag_to_string(x)
                self.log(current_section)
                if current_section.lower() == 'recent issues':
                    break
            else:
                title = self.tag_to_string(x)
                a = x.parent
                url = a['href']
                desc = ''
                meta = a.findNext(attrs={'class':'meta-data -excerpt'})
                if meta:
                    desc += self.tag_to_string(meta)
                dek = a.findNext(attrs={'class':'dek-heading -excerpt'})
                if dek:
                    desc += ' | ' + self.tag_to_string(dek)
                self.log('\t', title, url, '\n\t', desc)
                feeds_dict[current_section].append({"title": title, "url": url, "description": desc})
        return [(section, articles) for section, articles in feeds_dict.items()]

    def preprocess_html(self, soup):
        for img in soup.findAll('img', attrs={'src':True}):
            img['src'] = img['src'].split('?')[0] + '?w=600?quality=90'
        return soup