#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#

import sys, glob, time
sys.path.insert(0, './gen-py.twisted')
sys.path.insert(0, glob.glob('../../lib/py/build/lib.*')[0])

from ThriftTest import ThriftTest
from ThriftTest.ttypes import *
from thrift.transport import TTwisted
from thrift.protocol import TBinaryProtocol

from twisted.trial import unittest
from twisted.internet import defer, reactor
from twisted.internet.protocol import ClientCreator

from zope.interface import implements

import random

class TestHandler:
    implements(ThriftTest.Iface)

    def __init__(self):
        self.onewaysQueue = defer.DeferredQueue()

    def testVoid(self):
        pass
 
    def testString(self, s):
        return s
 
    def testByte(self, b):
        return b
 
    def testI16(self, i16):
        return i16
 
    def testI32(self, i32):
        return i32
 
    def testI64(self, i64):
        return i64
 
    def testDouble(self, dub):
        return dub
 
    def testStruct(self, thing):
        return thing
 
    def testException(self, s):
        if s == 'Xception':
            x = Xception()
            x.errorCode = 1001
            x.message = s
            raise x
        elif s == "throw_undeclared":
            raise ValueError("foo")
 
    def testOneway(self, seconds):
        def fireOneway(t):
            self.onewaysQueue.put((t, time.time(), seconds))
        reactor.callLater(seconds, fireOneway, time.time())
        return d
 
    def testNest(self, thing):
        return thing
 
    def testMap(self, thing):
        return thing
 
    def testSet(self, thing):
        return thing
 
    def testList(self, thing):
        return thing
 
    def testEnum(self, thing):
        return thing
 
    def testTypedef(self, thing):
        return thing

class ThriftTestCase(unittest.TestCase):

    @defer.inlineCallbacks
    def setUp(self):
        self.handler = TestHandler()
        self.processor = ThriftTest.Processor(self.handler)
        self.pfactory = TBinaryProtocol.TBinaryProtocolFactory()

        self.server = reactor.listenTCP(0,
            TTwisted.ThriftServerFactory(self.processor,
            self.pfactory), interface="127.0.0.1")

        self.portNo = self.server.getHost().port

        self.txclient = yield ClientCreator(reactor,
            TTwisted.ThriftClientProtocol,
            ThriftTest.Client,
            self.pfactory).connectTCP("127.0.0.1", self.portNo)
        self.client = self.txclient.client

    @defer.inlineCallbacks
    def tearDown(self):
        yield self.server.stopListening()
        self.txclient.transport.loseConnection()

    @defer.inlineCallbacks
    def testVoid(self):
        self.assertEquals((yield self.client.testVoid()), None)

    @defer.inlineCallbacks
    def testString(self):
        self.assertEquals((yield self.client.testString('Python')), 'Python')
 
    @defer.inlineCallbacks
    def testByte(self):
        self.assertEquals((yield self.client.testByte(63)), 63)

    @defer.inlineCallbacks
    def testI32(self):
        self.assertEquals((yield self.client.testI32(-1)), -1)
        self.assertEquals((yield self.client.testI32(0)), 0)

    @defer.inlineCallbacks
    def testI64(self):
        self.assertEquals((yield self.client.testI64(-34359738368)), -34359738368)

    @defer.inlineCallbacks
    def testDouble(self):
        self.assertEquals((yield self.client.testDouble(-5.235098235)), -5.235098235)

    @defer.inlineCallbacks 
    def testStruct(self):
        x = Xtruct()
        x.string_thing = "Zero"
        x.byte_thing = 1
        x.i32_thing = -3
        x.i64_thing = -5
        y = yield self.client.testStruct(x)
 
        self.assertEquals(y.string_thing, "Zero")
        self.assertEquals(y.byte_thing, 1)
        self.assertEquals(y.i32_thing, -3)
        self.assertEquals(y.i64_thing, -5)
 
    @defer.inlineCallbacks
    def testException(self):
        yield self.client.testException('Safe')
        try:
            yield self.client.testException('Xception')
            self.fail("should have gotten exception")
        except Xception, x:
            self.assertEquals(x.errorCode, 1001)
            self.assertEquals(x.message, 'Xception')

        try:
            yield self.client.testException("throw_undeclared")
            self.fail("should have thrown exception")
        except Exception: # type is undefined
            pass
 
    @defer.inlineCallbacks
    def testOneway(self):
        yield self.client.testOneway(2)
        start, end, seconds = yield self.handler.onewaysQueue.get()
        self.assertAlmostEquals(seconds, (end - start), places=2)