import template
import plugin
import string
import os

class NewsPlugin:
    def __init__(self):
        newspath = os.path.join(template.path, 'news')
        newsfiles = [ os.path.join(newspath, entry) for entry in sorted(os.listdir(newspath)) \
                        if not entry.startswith('.') ]

        self._news = []
        for newsfile in reversed(newsfiles):
            self._news.append(open(newsfile, 'r').read())

    def process_content(self, page_content):
        return_value = {}
        for filename, content in page_content.iteritems():
            template = string.Template(content)
            return_value[filename] = template.safe_substitute(
                    news = ''.join(self._news),
                    latest_news = ''.join(self._news[:2]),
            )
        return return_value

plugin.plugin_manager.register(NewsPlugin())