# $Id: $

# quixatom - Quixote PTL for Atom feed generation

from quixote import get_response, redirect
from quixote.directory import Directory

class FeedSource(object):
    def get_entries(self):
        return

    def get_updated(self):
        return

class Entry(object):
    pass

class FeedXml(Directory):
    _q_exports = ['']

    xmlns = 'http://www.w3.org/2005/Atom'

    def __init__(self, title, link, author_name, feed_id, feed_source):
        self.title = title
        self.link = link
        self.author_name = author_name
        self.feed_id = feed_id
        self.feed_source = feed_source

    def _q_index(self):
        get_response().set_header('Content-Type', 'text/xml')
        return self.feed_xml()

    def feed_xml [html] (self):
        '<?xml version="1.0"?>'
        '<feed xmlns="%s">' % self.xmlns
        '<title>%s</title>' % self.title
        '<link href="%s"/>' % self.link
        '<updated>%s</updated>' % self.feed_source.get_updated()
        '<author><name>%s</name></author>' % self.author_name
        '<id>%s</id>' % self.feed_id

        for entry in self.feed_source.get_entries():
           '<entry>'
           '<title>%s</title>' % entry.title
           '<link href="%s"/>' % entry.link
           '<id>%s</id>' % entry.id
           '<updated>%s</updated>' % entry.updated
           '<summary>%s</summary>' % entry.summary
           '</entry>'
        '</feed>'

class SampleFeedSource(FeedSource):

    def get_entries(self):
        for d in [{'title': 'The title',
                   'link': 'http://link.tld',
                   'id': 'urn:link.tld',
                   'updated': '2003-12-13T18:30:02Z',
                   'summary': 'Summary for this entry'}]:
            e = Entry()
            for k,v in d.items():
                setattr(e, k, v)
            yield e

    def get_last_updated(self):
        return '2003-12-13T18:30:02Z'

def sample_feed():
    return FeedXml('Sample quixatom Feed', 'http://www.cafepy.com/quixote_extras',
                      'Shalabh Chaturvedi', 'urn:cafepy.com:quixatom', SampleFeedSource())