import re

from calibre.web.feeds.news import BasicNewsRecipe


class GithubBlog(BasicNewsRecipe):
    title = u'Github Blog'
    language = 'en'
    description = 'Updates, ideas, and inspiration from GitHub to help developers build and design software.'
    cover_url = 'https://github.githubassets.com/assets/GitHub-Mark-ea2971cee799.png'
    masthead_url = 'https://github.githubassets.com/assets/GitHub-Logo-ee398b662d42.png'

    oldest_article = 14

    keep_only_tags = [
        dict(name='div', attrs={'class': 'col-12 offset-lg-1 col-lg-10 col-xl-7 mt-5 mt-lg-10 mb-6 mb-lg-8'}),
        dict(name='section', attrs={'class': lambda x: x and 'post__content' in x.split(' ')})
    ]

    remove_tags = [
        dict(name='div', attrs={'class': lambda x: x and 'post-tags' in x.split(' ')}),
        dict(name='ul', attrs={'class': lambda x: x and 'post-hero__categories' in x.split(' ')})
    ]

    preprocess_regexps = [
        # Styles the article description
        (re.compile(r'(<p class="[^"]*f4-mktg[^>]*>)([^<]*)(</p>)'),
         lambda m: '<h3>%s</h3>' % (m.group(2)))
    ]

    use_embedded_content = False
    no_stylesheets = True

    feeds = [
        (u'Engineering', u'https://github.blog/category/engineering/feed/'),
        (u'Product', u'https://github.blog/category/product/feed/'),
        (u'Security', u'https://github.blog/category/security/feed/'),
        (u'Open Source', u'https://github.blog/category/open-source/feed/'),
        (u'Enterprise', u'https://github.blog/category/enterprise/feed/'),
        (u'Community', u'https://github.blog/category/community/feed/'),
        (u'Education', u'https://github.blog/category/education/feed/'),
        (u'Company', u'https://github.blog/category/company/feed/'),
        (u'Policy', u'https://github.blog/category/policy/feed/')
    ]