import json
import re
from datetime import date
from calibre.web.feeds.news import BasicNewsRecipe, classes


class ft(BasicNewsRecipe):
    title = 'Financial Times - Print Edition'
    language = 'en'
    __author__ = "Kovid Goyal"
    description = 'The Financial Times is one of the world’s leading news organisations, recognised internationally for its authority, integrity and accuracy.'
    no_stylesheets = True
    remove_javascript = True
    remove_empty_feeds = True
    ignore_duplicate_articles = {'url'}
    remove_attributes = ['style', 'width', 'height']
    masthead_url = 'https://im.ft-static.com/m/img/masthead_main.jpg'

    def get_cover_url(self):
        soup = self.index_to_soup(
            'https://www.todayspapers.co.uk/the-financial-times-front-page-today/'
        )
        tag = soup.find('div', attrs={'class': 'elementor-image'})
        if tag:
            self.cover_url = tag.find('img')['src']
        return getattr(self, 'cover_url', self.cover_url)

    def parse_index(self):
        soup = self.index_to_soup('https://www.ft.com/todaysnewspaper/uk')
        # International edition: https://www.ft.com/todaysnewspaper/international
        ans = self.ft_parse_index(soup)
        if not ans:
            is_sunday = date.today().weekday() == 6
            if is_sunday:
                raise ValueError(
                    'The Financial Times Newspaper is not published on Sundays.'
                )
            else:
                raise ValueError(
                    'The Financial Times Newspaper is not published today.'
                )
        return ans

    def ft_parse_index(self, soup):
        feeds = []
        for section in soup.findAll(**classes('o-teaser-collection')):
            h2 = section.find('h2')
            secname = self.tag_to_string(h2)
            self.log(secname)
            articles = []
            for a in section.findAll(
                'a', href=True, **classes('js-teaser-heading-link')
            ):
                url = a['href']
                url = 'https://www.ft.com' + url
                title = self.tag_to_string(a)
                desc = ''
                desc_parent = a.findParent('div')
                div = desc_parent.find_previous_sibling(
                    'div', **classes('o-teaser__meta')
                )
                if div is not None:
                    desc = div.find('a', **classes('o-teaser__tag'))
                    desc = self.tag_to_string(desc)
                    prefix = div.find('span', **classes('o-teaser__tag-prefix'))
                    if prefix is not None:
                        prefix = self.tag_to_string(prefix)
                        desc = prefix + ' ' + desc
                    articles.append({
                        'title': title,
                        'url': url,
                        'description': desc
                    })
                    self.log('\t\t', desc)
                    self.log('\t\tFound article:', title)
                    self.log('\t\t\t', url)
            if articles:
                feeds.append((secname, articles))
        return feeds

    def preprocess_raw_html(self, raw, *a):
        # with open('/t/raw.html', 'w') as f:
        #     f.write(raw)
        m = re.search(
            r'type="application/ld\+json">[^<]+?"@type":"NewsArticle"', raw
        )
        raw = raw[m.start():]
        raw = raw.split('>', 1)[1]
        # with open('/t/raw.json', 'w') as f:
        #     f.write(raw)
        data = json.JSONDecoder().raw_decode(raw)[0]
        title = data['headline']
        body = data['articleBody']
        body = body.replace('\n\n', '<p>')

        author = ''
        if 'author' in data:
            try:
                author = data['author']['name']
            except TypeError:
                author = ' and '.join(x['name'] for x in data['author'])

        image = desc = title_image_url = ''
        if data.get('image'):
            title_image_url = data['image']['url']
            image = '<p><img src="{}">'.format(title_image_url)

        # embedded image links
        def insert_image(m):
            url = m.group()[1:-1]
            if url == title_image_url:
                return ''
            return '<p><img src="{}">'.format(url)

        body = re.sub(r'\[https://\S+?\]', insert_image, body)

        if data.get('description'):
            desc = '<h2>' + data['description'] + '</h2>'
        html = '<html><body><h1>' + title + '</h1>' + desc + '<h3>' + author + '</h3>' + image + '<p>' + body
        return html
