import time
from twisted.trial import unittest
from twisted.internet import defer
from twisted.python import log

from foolscap.eventual import flushEventualQueue
from twisted.application import service
from allmydata.node import Node, formatTimeTahoeStyle
from allmydata.util import testutil

class LoggingMultiService(service.MultiService):
    def log(self, msg):
        pass

class TestNode(Node):
    CERTFILE='DEFAULT_CERTFILE_BLANK'
    PORTNUMFILE='DEFAULT_PORTNUMFILE_BLANK'

class TestCase(unittest.TestCase, testutil.SignalMixin):
    def setUp(self):
        self.parent = LoggingMultiService()
        self.parent.startService()
    def tearDown(self):
        log.msg("%s.tearDown" % self.__class__.__name__)
        d = defer.succeed(None)
        d.addCallback(lambda res: self.parent.stopService())
        d.addCallback(flushEventualQueue)
        return d

    def test_advertised_ip_addresses(self):
        open('advertised_ip_addresses','w').write('1.2.3.4:5')

        n = TestNode()
        n.setServiceParent(self.parent)
        d = n.when_tub_ready()

        def _check_addresses(ignored_result):
            self.failUnless("1.2.3.4:5" in n.tub.registerReference(n), n.tub.registerReference(n))

        d.addCallback(_check_addresses)
        return d

    def test_log(self):
        n = TestNode()
        n.log("this is a message")
        n.log("with %d %s %s", args=(2, "interpolated", "parameters"))

    def test_timestamp(self):
        # this modified logger doesn't seem to get used during the tests,
        # probably because we don't modify the LogObserver that trial
        # installs (only the one that twistd installs). So manually exercise
        # it a little bit.
        t = formatTimeTahoeStyle("ignored", time.time())
        self.failUnless("Z" in t)
        t2 = formatTimeTahoeStyle("ignored", int(time.time()))
        self.failUnless("Z" in t2)