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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
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# 
# http://www.apache.org/licenses/LICENSE-2.0
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import concurrent.futures
import pytest

from six.moves import queue

from gremlin_python.driver.client import Client
from gremlin_python.driver.connection import Connection
from gremlin_python.driver import serializer
from gremlin_python.driver.driver_remote_connection import (
    DriverRemoteConnection)
from gremlin_python.driver.protocol import GremlinServerWSProtocol
from gremlin_python.driver.serializer import (
    GraphSONMessageSerializer, GraphSONSerializersV2d0,
    GraphSONSerializersV3d0)
from gremlin_python.driver.tornado.transport import TornadoTransport


@pytest.fixture
def connection(request):
    protocol = GremlinServerWSProtocol(
        GraphSONMessageSerializer(),
        username='stephen', password='password')
    executor = concurrent.futures.ThreadPoolExecutor(5)
    pool = queue.Queue()
    try:
        conn = Connection('ws://localhost:45941/gremlin', 'gmodern', protocol,
                          lambda: TornadoTransport(), executor, pool)
    except OSError:
        executor.shutdown()
        pytest.skip('Gremlin Server is not running')
    else:
        def fin():
            executor.shutdown()
            conn.close()
        request.addfinalizer(fin)
        return conn


@pytest.fixture
def client(request):
    try:
        client = Client('ws://localhost:45940/gremlin', 'gmodern')
    except OSError:
        pytest.skip('Gremlin Server is not running')
    else:
        def fin():
            client.close()
        request.addfinalizer(fin)
        return client


@pytest.fixture
def secure_client(request):
    try:
        client = Client('ws://localhost:45941/gremlin', 'gmodern', username='stephen', password='password')
    except OSError:
        pytest.skip('Gremlin Server is not running')
    else:
        def fin():
            client.close()
        request.addfinalizer(fin)
        return client


@pytest.fixture(params=['v2', 'v3'])
def remote_connection(request):
    try:
        if request.param == 'v2':
            remote_conn = DriverRemoteConnection('ws://localhost:45940/gremlin', 'gmodern',
                                                 message_serializer=serializer.GraphSONSerializersV2d0())
        else:
            remote_conn = DriverRemoteConnection('ws://localhost:45940/gremlin', 'gmodern')
    except OSError:
        pytest.skip('Gremlin Server is not running')
    else:
        def fin():
            remote_conn.close()
        request.addfinalizer(fin)
        return remote_conn


@pytest.fixture
def remote_connection_v2(request):
    try:
        remote_conn = DriverRemoteConnection('ws://localhost:45940/gremlin', 'g', message_serializer=serializer.GraphSONSerializersV2d0())
    except OSError:
        pytest.skip('Gremlin Server is not running')
    else:
        def fin():
            remote_conn.close()
        request.addfinalizer(fin)
        return remote_conn


@pytest.fixture
def graphson_serializer_v2(request):
    return GraphSONSerializersV2d0()


@pytest.fixture
def graphson_serializer_v3(request):
    return GraphSONSerializersV3d0()