from functools import partial

from ..error import NoRoute, NoTyp, ValidateException, NoProvider

from ..config import Option, Config

class Provider(Config):

    def __init__(self, name, typs={}):

        Config.__init__(self, name)

        self.typs=typs

        self.testmode = False

        self.options = {

                "typ":Option(vProvider, long="One available provider typ.", must=True, default=name)

                }

        self.order = ["typ"]

    def send(self, typ, route, recipient, message):

        pass

    def getSendFunc(self, typ, route):

        try:

            if route not in self.typs[typ]:

                raise NoRoute(route)

        except KeyError:

            raise NoTyp(route)

        return partial(self.send, typ, route)

def getProvider(name, typ, config):

    try:

        p = providers[typ](name)

        p.load(config)

        return p

    except KeyError:

        raise NoProvider(typ)

def vProvider(typ, field):

    if typ not in providers.keys():

        raise ValidateException()

    return typ

providers={}