from twisted.trial import unittest
from twisted.python.failure import Failure
from cStringIO import StringIO

from allmydata import upload
from allmydata.uri import unpack_uri

from test_encode import FakePeer

class FakeClient:
    def __init__(self, mode="good"):
        self.mode = mode
    def get_permuted_peers(self, verifierid):
        return [ ("%20d"%fakeid, "%20d"%fakeid, FakePeer(self.mode),) for fakeid in range(50) ]

class GoodServer(unittest.TestCase):
    def setUp(self):
        self.node = FakeClient(mode="good")
        self.u = upload.Uploader()
        self.u.running = True
        self.u.parent = self.node

    def _check(self, uri):
        self.failUnless(isinstance(uri, str))
        self.failUnless(uri.startswith("URI:"))
        codec_name, codec_params, tail_codec_params, verifierid, roothash, needed_shares, total_shares, size, segment_size = unpack_uri(uri)
        self.failUnless(isinstance(verifierid, str))
        self.failUnlessEqual(len(verifierid), 20)
        self.failUnless(isinstance(codec_params, str))

    def testData(self):
        data = "This is some data to upload"
        d = self.u.upload_data(data)
        d.addCallback(self._check)
        return d

    def testFileHandle(self):
        data = "This is some data to upload"
        d = self.u.upload_filehandle(StringIO(data))
        d.addCallback(self._check)
        return d

    def testFilename(self):
        fn = "Uploader-testFilename.data"
        f = open(fn, "w")
        data = "This is some data to upload"
        f.write(data)
        f.close()
        d = self.u.upload_filename(fn)
        d.addCallback(self._check)
        return d

class FullServer(unittest.TestCase):
    def setUp(self):
        self.node = FakeClient(mode="full")
        self.u = upload.Uploader()
        self.u.running = True
        self.u.parent = self.node

    def _should_fail(self, f):
        self.failUnless(isinstance(f, Failure) and f.check(upload.NotEnoughPeersError))

    def testData(self):
        data = "This is some data to upload"
        d = self.u.upload_data(data)
        d.addBoth(self._should_fail)
        return d