# Copyright 2012 GRNET S.A. All rights reserved.
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from logging import getLogger

from django.http import Http404, HttpResponse

from synnefo.vmapi import backend, get_key
from synnefo.vmapi import settings

log = getLogger('synnefo.vmapi')


def server_params(request, uuid):
    if not uuid:
        raise Http404

    cache_key = get_key(uuid)
    params = backend.get(cache_key)
    if not params:
        log.error('Request vmapi params key not found: %s', cache_key)
        raise Http404

    if settings.RESET_PARAMS:
        backend.set(cache_key, None)

    return HttpResponse(params, content_type="application/json")