from django.conf import settings
from django.core.exceptions import ImproperlyConfigured
from django.http import HttpResponse, HttpResponseForbidden
from django.utils import simplejson as json
from django.views.generic import TemplateView, View

try:
    import requests
except ImportError:
    raise ImportError("Install the damn requirements!")


class DjrillApiMixin(object):
    """
    Simple Mixin to grab the api info from the settings file.
    """
    def __init__(self, *args, **kwargs):
        self.api_key = getattr(settings, "MANDRILL_API_KEY", None)
        self.api_url = getattr(settings, "MANDRILL_API_URL", None)

        if not self.api_key:
            raise ImproperlyConfigured("You have not set your mandrill api key "
                "in the settings file.")
        if not self.api_url:
            raise ImproperlyConfigured("You have not added the Mandrill api "
                "url to your settings.py")


class DjrillApiJsonObjectsMixin(object):
    """
    Mixin to grab json objects from the api.
    """
    api_uri = None

    def get_json_objects(self):
        payload = json.dumps({"key": self.api_key})
        req = requests.post("%s/%s" % (self.api_url, self.api_uri),
            data=payload)
        if req.status_code == 200:
            return req.content
        raise Exception("OH GOD, NO!")


class DjrillIndexView(DjrillApiMixin, TemplateView):
    template_name = "djrill/status.html"

    def get(self, request):

        payload = json.dumps({"key": self.api_key})
        req = requests.post("%s/users/info.json" % self.api_url, data=payload)

        return self.render_to_response({"status": json.loads(req.content)})


class DjrillSendersListView(DjrillApiMixin, DjrillApiJsonObjectsMixin,
    TemplateView):

    api_uri = "users/senders.json"
    template_name = "djrill/senders_list.html"

    def get(self, request):
        objects = self.get_json_objects()
        return self.render_to_response({"objects": json.loads(objects)})


class DjrillSenderView(DjrillApiMixin, View):
    api_action = None

    def post(self, request):
        email = request.POST.get("email", None)

        if email:
            payload = {
                "key": self.api_key,
                "email": email
            }
            req = requests.post("%s/%s" % (self.api_url, self.api_action),
                data=json.dumps(payload))

            if req.status_code == 200:
                return HttpResponse("success")

        return HttpResponseForbidden()


class DjrillDisableSenderView(DjrillSenderView):
    api_action = "users/disable-sender.json"


class DjrillVerifySenderView(DjrillSenderView):
    api_action = "users/verify-sender.json"