__license__ = 'GPL v3'
__copyright__ = '2012 Levien van Zon <levien@zonnetjes.net>'

'''
Fetch Edge.org conversations
'''
from calibre.web.feeds.news import BasicNewsRecipe


class EdgeConversationRSS(BasicNewsRecipe):
    title = u'Edge.org Conversations'
    __author__ = 'levien'
    language = 'en'
    description = '''Edge.org offers "open-minded, free ranging, intellectually
    playful ... an unadorned pleasure in curiosity, a collective expression of
    wonder at the living and inanimate world ... an ongoing and thrilling
    colloquium.'''
    oldest_article = 60
    max_articles_per_feed = 100
    no_stylesheets = True

    keep_only_tags = [
        dict(name='div', attrs={'class': 'HomeLeftPannel IMGCTRL'})]
    remove_tags = [
        dict(name='div', attrs={'class': 'Logo'})
    ]

    feeds = [(u'Edge RSS', u'http://edge.org/feeds/')]

    def print_version(self, url):
        return url.replace('conversation/', 'conversation.php?cid=')

    def parse_feeds(self):

        # Call parent's method.
        feeds = BasicNewsRecipe.parse_feeds(self)

        # Loop through all feeds.
        for feed in feeds:

            # Loop through all articles in feed.
            for article in feed.articles[:]:

                # Remove anything that is not a conversation, and remove PDF
                # files as well...

                if not ('CONVERSATION' in article.title):
                    feed.articles.remove(article)
                elif 'pdf' in article.url:
                    feed.articles.remove(article)

        return feeds