"""
import_old_articles.py - For importing articles from the older version of this
website.

"""
import datetime

from django.conf import settings
from django.core.management.base import LabelCommand
from django.utils import simplejson as json
from django.utils.html import linebreaks
import textile

from articles.models import Article


class Command(LabelCommand):
    args = '<filename filename ...>'
    help = 'Imports older articles in JSON format'

    def handle_label(self, filename, **options):
        """
        Process the file of older articles in JSON. Convert to the new model
        scheme.

        """
        with open(filename, 'rb') as f:
            items = json.load(f)

        for item in items:
            if item['model'] == 'band.article':
                self.process_item(item)

    def process_item(self, item):

        fields = item['fields']

        content = fields['text'].strip()
        if fields['markup_enabled']:
            text = textile.textile(content, encoding='utf-8', output='utf-8')
        else:
            text = linebreaks(fields['text'])

        source = linebreaks(fields['source'].strip())

        pdf = fields['pdf'].strip()
        if pdf:
            pdf = u"%s%s" % (settings.MEDIA_URL, pdf.replace('\\', '/'))

        article = Article(
                id=item['pk'],
                title=fields['title'].strip(),
                date=datetime.datetime.strptime(fields['date'], '%Y-%m-%d'),
                text=text,
                source=source,
                url=fields['url'].strip(),
                pdf=pdf)

        article.save()