import os

import jsonschema
from lxml import etree
import pytest

from inventory_provider import juniper

import inventory_provider

TEST_DATA_DIRNAME = os.path.realpath(os.path.join(
    inventory_provider.__path__[0],
    "..",
    "test",
    "data"))


class MockedJunosRpc(object):

    def __init__(self, hostname):
        filename = os.path.join(TEST_DATA_DIRNAME, "%s-netconf.xml" % hostname)
        self.config = etree.parse(filename)

    def get_config(self):
        return self.config


class MockedJunosDevice(object):

    def __init__(self, **kwargs):
        self.rpc = MockedJunosRpc(kwargs['host'])

    def open(self):
        pass


@pytest.fixture
def netconf_doc(mocker, router, data_config):
    mocker.patch(
        'inventory_provider.juniper.Device',
        MockedJunosDevice)
    return juniper.load_config(router, data_config['ssh'])


def test_interface_list(netconf_doc):

    schema = {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "type": "array",
        "items": {
            "type": "object",
            "properties": {
                "name": {"type": "string"},
                "description": {"type": "string"},
                "ipv4": {
                    "type": "array",
                    "items": {"type": "string"}
                },
                "ipv6": {
                    "type": "array",
                    "items": {"type": "string"}
                }
            },
            "required": ["name", "description", "ipv4", "ipv6"],
            "additionalProperties": False
        }
    }

    interfaces = list(juniper.list_interfaces(netconf_doc))
    jsonschema.validate(interfaces, schema)
    assert interfaces  # at least shouldn't be empty


def test_bgp_list(netconf_doc):

    schema = {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "type": "array",
        "items": {
            "type": "object",
            "properties": {
                "name": {"type": "string"},
                "description": {"type": "string"},
                "as": {
                    "type": "object",
                    "properties": {
                        "local": {"type": "integer"},
                        "peer": {"type": "integer"},
                    },
                    "required": ["local", "peer"],
                    "additionalProperties": False
                }
            },
            "required": ["name", "description", "as"],
            "additionalProperties": False
        }
    }

    routes = list(juniper.list_bgp_routes(netconf_doc))
    jsonschema.validate(routes, schema)


def test_snmp_community_string(mocked_netifaces, netconf_doc):
    assert juniper.snmp_community_string(netconf_doc) == '0pBiFbD'


def test_interface_addresses_list(netconf_doc):
    schema = {
        "$schema": "http://json-schema.org/draft-07/schema#",

        "definitions": {
            "v4a": {
                "type": "string",
                "pattern": r'^(\d+\.){3}\d+$'
            },
            "v6a": {
                "type": "string",
                "pattern": r'^([a-f\d]{4}:){7}[a-f\d]{4}$'
            },
            "v4i": {
                "type": "string",
                "pattern": r'^(\d+\.){3}\d+/\d+$'
            },
            "v6i": {
                "type": "string",
                "pattern": r'^[a-f\d:]+/\d+$'
            }
        },

        "type": "array",
        "items": {
            "type": "object",
            "properties": {
                "name": {
                    "oneOf": [
                        {"$ref": "#/definitions/v4a"},
                        {"$ref": "#/definitions/v6a"}
                    ]
                },
                "interface address": {
                    "oneOf": [
                        {"$ref": "#/definitions/v4i"},
                        {"$ref": "#/definitions/v6i"}
                    ]
                },
                "interface name": {"type": "string"},
            },
            "required": ["name", "interface address", "interface name"],
            "additionalProperties": False
        }
    }

    addresses = list(juniper.interface_addresses(netconf_doc))
    jsonschema.validate(addresses, schema)