# Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)
#
# Licensed 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 os, pytest, time
from common.Constants import ServiceNameEnum
from common.Settings import (
    ENVVAR_SUFIX_SERVICE_HOST, ENVVAR_SUFIX_SERVICE_PORT_HTTP, get_env_var_name, get_service_port_http)
from compute.service.rest_server.RestServer import RestServer
from compute.service.rest_server.nbi_plugins.ietf_l2vpn import register_ietf_l2vpn
from compute.tests.MockService_Dependencies import MockService_Dependencies
from tests.tools.mock_osm.MockOSM import MockOSM
from .Constants import WIM_MAPPING, WIM_USERNAME, WIM_PASSWORD

LOCAL_HOST = '127.0.0.1'
MOCKSERVICE_PORT = 10000
COMPUTE_SERVICE_PORT = MOCKSERVICE_PORT + get_service_port_http(ServiceNameEnum.COMPUTE)    # avoid privileged ports
os.environ[get_env_var_name(ServiceNameEnum.COMPUTE, ENVVAR_SUFIX_SERVICE_HOST     )] = str(LOCAL_HOST)
os.environ[get_env_var_name(ServiceNameEnum.COMPUTE, ENVVAR_SUFIX_SERVICE_PORT_HTTP)] = str(COMPUTE_SERVICE_PORT)

@pytest.fixture(scope='session')
def mock_service():
    _service = MockService_Dependencies(MOCKSERVICE_PORT)
    _service.configure_env_vars()
    _service.start()
    yield _service
    _service.stop()

@pytest.fixture(scope='session')
def compute_service_rest(mock_service):  # pylint: disable=redefined-outer-name
    _rest_server = RestServer()
    register_ietf_l2vpn(_rest_server)
    _rest_server.start()
    time.sleep(1) # bring time for the server to start
    yield _rest_server
    _rest_server.shutdown()
    _rest_server.join()

@pytest.fixture(scope='session')
def osm_wim(compute_service_rest): # pylint: disable=redefined-outer-name
    wim_url = 'http://{:s}:{:d}'.format(LOCAL_HOST, COMPUTE_SERVICE_PORT)
    return MockOSM(wim_url, WIM_MAPPING, WIM_USERNAME, WIM_PASSWORD)
