import json
import re
from urllib.parse import quote

from calibre import browser
from calibre.web.feeds.news import BasicNewsRecipe, classes
from html5_parser import parse


class ft(BasicNewsRecipe):
    title = 'Financial Times'
    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.'
    oldest_article = 1.15
    max_articles_per_feed = 50
    no_stylesheets = True
    remove_javascript = True
    remove_empty_feeds = True
    ignore_duplicate_articles = {'url'}
    resolve_internal_links = True
    remove_attributes = ['style', 'width', 'height']
    masthead_url = 'https://im.ft-static.com/m/img/masthead_main.jpg'
    simultaneous_downloads = 1

    extra_css = '''
        .article-info__time-byline {font-size:small; font-weight:bold; }
        .o-topper__visual, #fig, .main-image, .n-content-image { text-align:center; font-size:small; }
        blockquote, i { color:#5c5c5c; }
        .o-topper__standfirst { font-style:italic; color:#202020; }
        .o-topper__topic { font-size:small; color:#5c5c5c; }
    '''

    keep_only_tags = [
        classes(
            'body_json o-topper__topic o-topper__headline o-topper__standfirst o-topper__visual article-info__time-byline main-image'
        ),
        dict(name='article', attrs={'id':'article-body'})
    ]

    remove_tags = [
        dict(name=['source', 'svg', 'button', 'aside']),
        dict(name='aside', attrs={'class':'n-content-recommended--single-story'}),
        dict(attrs={'data-layout-name':'card'}),
        classes('in-article-advert flourish-disclaimer')
    ]

    def get_cover_url(self):
        soup = self.index_to_soup('https://www.frontpages.com/financial-times/')
        return 'https://www.frontpages.com' + soup.find('img', attrs={'id':'giornale-img'})['src']

    # needs_subscription = 'optional'
    #
    # def get_browser(self, *args, **kw):
    #     br = super().get_browser(*args, **kw)
    #     if self.username and self.password:
    #         # ft.com uses a CAPTCHA on its login page so this sadly doesnt work
    #         br.open('https://accounts.ft.com/login?location=https%3A%2F%2Fwww.ft.com')
    #         br.select_form(id='email-form')
    #         br['email'] = self.username
    #         br.submit()
    #         br.select_form(id='login-form')
    #         br['password'] = self.password
    #         br.submit()
    #     return br

    def get_browser(self, *args, **kwargs):
        return self

    def clone_browser(self, *args, **kwargs):
        return self.get_browser()

    def open_novisit(self, *args, **kwargs):
        br = browser(user_agent='Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)')
        br.addheaders += [
            ('Referer', 'https://www.google.com/'),
            ('X-Forwarded-For', '66.249.66.1')
        ]
        return br.open_novisit(*args, **kwargs)

    open = open_novisit

    feeds = [
        ('FirstFT', 'https://www.ft.com/firstft?format=rss'),
        ('Opinion', 'https://www.ft.com/opinion?format=rss'),
        ('World', 'https://www.ft.com/world?format=rss'),
        ('US', 'https://www.ft.com/us?format=rss'),
        ('Companies', 'https://www.ft.com/companies?format=rss'),
        ('Tech', 'https://www.ft.com/technology?format=rss'),
        ('Markets', 'https://www.ft.com/markets?format=rss'),
        ('Climate', 'https://www.ft.com/climate-capital?format=rss'),
        ('Life & Arts', 'https://www.ft.com/life-arts?format=rss'),
        ('How to spend it', 'https://www.ft.com/htsi?format=rss'),
        ('Others', 'https://www.ft.com/rss/home/uk')
    ]

    def preprocess_raw_html(self, raw, *a):
        # with open('/t/raw.html', 'w') as f:
        #     f.write(raw)
        root = parse(raw)
        if root.xpath('//article[@id="article-body"]'):
            self.log('**has article content')
            return raw
        self.log('**no article content')
        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 = ''

        def resize_img(img):
            a = 'https://www.ft.com/__origami/service/image/v2/images/raw/'
            b = quote(img, safe='')
            c = '?dpr=2&fit=scale-down&quality=medium&source=next&width=400'
            # use width = 200, 300, 400,.. 700...
            return a + b + c

        if data.get('image'):
            image_url = data['image']['url']
            if body.__contains__(image_url) is False:
                title_image_url = resize_img(image_url)
                image = '<p><img src="{}">'.format(title_image_url)
        # embedded image links

        def insert_image(m):
            url = m.group()[1:-1]
            if url.__contains__('studio') is False:
                url = resize_img(url)
            return '<span><img src="{}"></span></p><p>'.format(url)

        body = re.sub(r'\[https://\S+?\]', insert_image, body)
        if data.get('description'):
            desc = '<h2>' + data['description'] + '</h2>'
        html = '<html><body><div class="body_json"><h1>' + title + '</h1>' + desc + '<h3>' + author + '</h3>' + image + '<p>' + body
        return html

    def preprocess_html(self, soup):
        for table in soup.findAll('table'):
            if len(table.find('tbody').findAll('tr')) > 20:
                table.find('tbody').decompose()
                table.string = '** a table that was supposed to be here has been removed.'
        for con in soup.findAll(attrs={'class':'n-content-layout__slot'}):
            if con.find('figure'):
                con['id'] = 'fig'
        return soup