from django import template
from django.conf import settings

register = template.Library()

@register.tag
def jquery(parser, token):
    return JQueryNode()

class JQueryNode(template.Node):
    def render(self, context):
        prefixes = { False: 'http', True: 'https' }
        version = '1.4.3'
        oncdn = getattr(settings, 'CDN_ENABLED', True)
        if oncdn:
            jquery = 'https://ajax.googleapis.com/ajax/libs/jquery/' \
                    '%s/jquery.min.js' % version
        else:
            jquery = '/media/jquery-%s.min.js' % version
        return '<script type="text/javascript" src="%s"></script>' % jquery

@register.tag
def cdnprefix(parser, token):
    return CDNPrefixNode()

class CDNPrefixNode(template.Node):
    def render(self, context):
        oncdn = getattr(settings, 'CDN_ENABLED', True)
        if not oncdn:
            return ''
        secure = 'secure' in context and context['secure']
        # if left undefined, same behavior as if CDN is turned off
        paths = {
                False: getattr(settings, 'CDN_PATH', ''),
                True: getattr(settings, 'CDN_PATH_SECURE', ''),
        }
        return paths[secure]

# vim: set ts=4 sw=4 et: