from twisted.internet import reactor
from twisted.internet.defer import inlineCallbacks

import io

from iro.model import offer
from iro.config import config
from iro.offer import Offer, providers as OfferProviders, Provider
from iro.model.schema import User, Offer as DBOffer, Userright
from iro.controller.pool  import dbPool
from iro.error import NoProvider
from .dbtestcase import DBTestCase

class TestOffers(DBTestCase):
    '''test config class'''
    def setUp(self):
        DBTestCase.setUp(self)
        dbPool.start(reactor)

    def tearDown(self):
        dbPool.pool.stop()
        offer.offers.clear()
        try:
            del(OfferProviders["test"])
        except KeyError:
            pass
        offer.providers.clear()
        DBTestCase.tearDown(self)

    def testReloadList(self):
        '''test if loadOffers will be fired by reloading Config'''
        self.assertTrue(offer.loadOffers in config.reloadList)

    @inlineCallbacks
    def testExtendProviderUnknown(self):
        '''test the extendProvider Function (route unknown)'''
        with self.session() as session:
            u = User(name='test',apikey='abcdef123456789')
            session.add(u)

        offer.offers={"blub":None}
        ret = yield offer.extendProvider(u, "sms", ["blub"])
        self.assertEqual(ret, [])

    @inlineCallbacks
    def testExtendProviderKnown(self):
        '''test the extendProvider Function (route known)'''
        with self.session() as session:
            u = User(name='test',apikey='abcdef123456789')
            session.add(u)
            o=DBOffer(name="blub", provider="bla", route="basic", typ="sms")
            u.rights.append(Userright(o)) 

        offer.offers={"blub":None}
        ret = yield offer.extendProvider(u, "sms", ["blub"])
        self.assertEqual(ret, ["blub"])

        ret = yield offer.extendProvider(u, "sms", ["blub", "blub"])
        self.assertEqual(ret, ["blub"])

    @inlineCallbacks
    def testExtendProviderProvider(self):
        '''test the extendProvider Function (provider known)'''
        with self.session() as session:
            u = User(name='test',apikey='abcdef123456789')
            session.add(u)
            o=DBOffer(name="oh", provider="bla", route="a", typ="sms")
            u.rights.append(Userright(o)) 
        
        offer.providers={"bla":Provider("bla", [], ["a","b","c"])}

        for l in [['bla'],['oh'],['oh','bla'],['bla','oh']]:
            ret = yield offer.extendProvider(u, "sms", l)
            self.assertEqual(ret, ["oh"])

    @inlineCallbacks
    def testExtendProviderDouble(self):
        '''test the extendProvider Function (provider and name doubles)'''
        with self.session() as session:
            u = User(name='test',apikey='abcdef123456789')
            session.add(u)
            o=DBOffer(name="oh", provider="bla", route="a", typ="sms")
            u.rights.append(Userright(o)) 
            o=DBOffer(name="a", provider="bla", route="b", typ="sms")
            u.rights.append(Userright(o)) 
        
        offer.providers={"bla":Provider("bla", [], ["a","b","c"])}

        ret = yield offer.extendProvider(u, "sms",  ["bla"])
        self.assertEqual(ret, ["oh","a"])
    
        ret = yield offer.extendProvider(u, "sms",  ["a","bla"])
        self.assertEqual(ret, ["a","oh"])

        ret = yield offer.extendProvider(u, "sms",  ["bla", "a"])
        self.assertEqual(ret, ["oh","a"])

    @inlineCallbacks
    def testLoadOffers(self):
        
        class TestProvider(Provider):
            def __init__(self,name,config):
                Provider.__init__(self,name,config,["a",])
        
        with self.session() as session:
            session.add(DBOffer(name="oh", provider="p", route="a", typ="sms"))

        sample_config = """[p]
typ = test
"""
        config.readfp(io.BytesIO(sample_config))
        OfferProviders["test"]=TestProvider
        yield offer.loadOffers()        
        self.assertEqual(offer.offers.keys(),["oh"])
        self.assertEqual(offer.providers.keys(),["p"])
        self.assertEqual(offer.providers["p"].name,"p")
        self.assertEqual(offer.providers["p"].typ,"test")
        self.assertEqual(offer.offers["oh"],Offer(provider=offer.providers["p"], name="oh", route="a", typ="sms"))

    def testLoadOffersUnknown(self):
        with self.session() as session:
            session.add(DBOffer(name="oh", provider="p", route="a", typ="sms"))

        sample_config = """[p]
typ = unknown
"""
        config.readfp(io.BytesIO(sample_config))
        d = offer.loadOffers()        
        self.assertFailure(d, NoProvider)