import contextlib
import json
import os
import socket
import pytest
import tempfile


@pytest.fixture(scope='session')
def configuration_data():
    with contextlib.closing(
            socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
        s.bind(('', 0))
        s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        yield {
            "GENERAL": {
                "public_hostname": "https://gap.geant.org"
            },
            "RESOURCE_MANAGER_API_PREFIX": "http://localhost:44444",
            "IPAM": {
                "INFOBLOX": {
                    "scheme": "https",
                    "wapi_version": "v2.12",
                    "host": "10.0.0.1",
                    "username": "robot-user",
                    "password": "robot-user-password"
                },
                "LO": {
                    "V4": {
                        "containers": [],
                        "networks": ["10.255.255.0/26"],
                        "mask": 32
                    },
                    "V6": {
                        "containers": [],
                        "networks": ["dead:beef::/80"],
                        "mask": 128
                    },
                    "domain_name": ".lo"
                },
                "TRUNK": {
                    "V4": {
                        "containers": ["10.255.255.0/24", "10.255.254.0/24"],
                        "networks": [],
                        "mask": 31
                    },
                    "V6": {
                        "containers": ["dead:beef::/64", "dead:beee::/64"],
                        "networks": [],
                        "mask": 126
                    },
                    "domain_name": ".trunk"
                },
                "GEANT_IP": {
                    "V4": {
                        "containers": ["10.255.255.0/24", "10.255.254.0/24"],
                        "networks": [],
                        "mask": 31
                    },
                    "V6": {
                        "containers": ["dead:beef::/64", "dead:beee::/64"],
                        "networks": [],
                        "mask": 126
                    },
                    "domain_name": ".geantip"
                }
            },
            "PROVISIONING_PROXY": {
                "scheme": "https",
                "api_base": "localhost:44444",
                "auth": "Bearer <token>",
                "api_version": 1123
            }
        }


@pytest.fixture(scope='session')
def data_config_filename(configuration_data):
    file_name = os.path.join(
        tempfile.gettempdir(), os.urandom(24).hex())
    open(file_name, 'x').close()
    with open(file_name, 'wb') as f:
        f.write(json.dumps(configuration_data).encode('utf-8'))
        f.flush()

        os.environ['OSS_PARAMS_FILENAME'] = f.name

        yield f.name