from functools import partial
from twisted.web.xmlrpc import Proxy
import xmlrpclib
from decimal import Decimal

from .provider import providers, Provider
from ..config import Option
from ..validate import vFloat
from ..model.status import Status
from ..error import NoTyp
from .. import __version__


class Sipgate(Provider):
    """
        s. auch http.tuxad.com/sipgate.html
        und http://lists.sipgate.net/pipermail/sipgate-developers/2007-September/000016.html

        http://www.sipgate.de/beta/public/static/downloads/basic/api/sipgate_api_documentation.pdf

        See :doc:`provider` for a tutorial, how to create a new provider backend. This turorial implements this provider.
    """

    url="https://%s:%s@samurai.sipgate.net/RPC2"
    """XML-RPC url for sipgate"""

    def __init__(self,name):
        options =[("username", Option(lambda x,y: x,long="Loginname for sipgate", must=True)),
                  ("password", Option(lambda x,y: x,long="Password for sipgate", must=True)),
                  ("price_sms", Option(vFloat, long="price for one sms", default="0.079")),
                  ("price_fax", Option(vFloat, long="price for one fax", default="0.03")),
                  ]
        Provider.__init__(self, name, {"sms" : [None], "fax":[None]}, options)

    def proxy(self):
        """returns a XML-RPC proxy object to sipgate API."""
        return Proxy(self.url%(self.username, self.password))

    def load(self,cfg):
        """Loads configuration into object.

        :param dict cfg: The Configuration dict. Normally you use ``configParser.items("section")``.
        """

        Provider.load(self,cfg)
        #return self.clientIdentify()

    def clientIdentify(self):
        """identificaton of client to sipgate server."""
        args_identify = {
                "ClientName"    : "Iro",
                "ClientVersion" : __version__,
                "ClientVendor"  : "netzguerilla.net"
                }

        return self.proxy().callRemote("samurai.ClientIdentify", args_identify)

    def sms(self, recipient, sms):
        """send one SMS to recimpient.

        :param `iro.telnumber.Telnumber` recipient: mobilenumber of recipient
        :param `iro.model.message.SMS` sms: the sms to send
        :return: a deferrer
        """
        args={
                "TOS" : "text",
                "Content" : sms.getContent(),
                "RemoteUri" : "sip:%s%s@sipgate.net"%(recipient.land, recipient.number),
                }
        return self.proxy().callRemote("samurai.SessionInitiate",args)

    def fax(self, recipient, fax):
        """send one fax to recimpient.

        :param `iro.telnumber.Telnumber` recipient: faxnumber of recipient
        :param `iro.model.message.Fax` fax: the fax to send
        :return: a deferrer.
        """

        args={
            "TOS" : "fax",
            "Content" : xmlrpclib.Binary(fax.getAttachment(0)),
            "RemoteUri" : "sip:%s%s@sipgate.net"%(recipient.land, recipient.number),
            }
        return self.proxy().callRemote("samurai.SessionInitiate",args)

    def _status(self,value,typ):
        """returns a :class:`~iro.model.status.Status` object.
        :raises: :exc:`iro.error.NoTyp`
        """
        if typ not  in self.typs.keys():
            raise NoTyp(typ)
        return Status(self, None, Decimal(getattr(self,"price_"+typ)), 1, value["SessionID"])

    def send(self, typ, recipient, msg):
        """send msg to recipient.

        :param string typ: Typ of message.
        :param `iro.telnumber.Telnumber` recipient: telnumber of recipient
        :param msg: the msg to send
        :type msg: :class:`iro.model.message.Fax` or :class:`iro.model.message.SMS`
        :return: a deferrer, that returns a :class:`~iro.model.status.Status` object
        :raises: :exc:`iro.error.NoTyp`
        """
        if typ not  in self.typs.keys():
            raise NoTyp(typ)
        d = getattr(self,typ)(recipient, msg)
        d.addCallback(self._status, typ)
        return d

    def getSendFunc(self, typ, route):
        """returns :meth:`send` method with bound typ, if typ and route is valid."""

        Provider.getSendFunc(self, typ, route)
        return partial(self.send, typ)

providers["sipgate"] = Sipgate