import subprocess
import logging

from bs4 import BeautifulSoup

logger = logging.getLogger(__name__)


def render_snapshot(url):
  logger.info('Snapshotting url: %s' % url)

  out_html = subprocess.check_output(['phantomjs', '--ignore-ssl-errors=yes',
                                      '--disk-cache=yes',
                                      'util/phantomjs-runner.js', url])

  if not out_html or out_html.strip() == 'Not Found':
    return None

  # Remove script tags
  logger.info('Removing script tags: %s' % url)

  soup = BeautifulSoup(out_html.decode('utf8'))
  to_extract = soup.findAll('script')
  for item in to_extract:
    item.extract()

  logger.info('Snapshotted url: %s' % url)

  return str(soup)