from django.conf import settings
from django.core.exceptions import ImproperlyConfigured
from django.core.mail.backends.base import BaseEmailBackend


class DjrillBackend(BaseEmailBackend):
    """
    Mandrill API Email Backend
    """

    def __init__(self, fail_silently=False, **kwargs):
        """
        Set the API key, API url and set the action url.
        """
        super(DjrillBackend, self).__init__(**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.py file.")
        if not self.api_url:
            raise ImproperlyConfigured("You have not added the Mandrill api "
                "url to your settings.py")

        self.api_action = self.api_url + "/messages/send.json"

    def open(self):
        """
        Ping the Mandrill API to make sure they are up
        and that we have a valid API key and sender.
        """
        pass

    def send_messages(self, email_messages):
        pass