import json

import pytest
from CommonServerPython import *  # noqa: F401
from freezegun import freeze_time
from NetQuestOMX import (
    DATE_FORMAT_FOR_TOKEN,
    TOKEN_TTL_S,
    Client,
    StatType,
    address_list_create_command,
    address_list_delete_command,
    address_list_optimize_command,
    address_list_rename_command,
    address_list_upload_command,
    demisto,
    fetch_events,
    get_events,
)
from pytest_mock import MockerFixture

BASE_URL = "https://www.example.com/api/"


def util_load_json(path):
    with open(path, encoding="utf-8") as f:
        return json.loads(f.read())


# ----------------------------------------- COMMAND FUNCTIONS TESTS ---------------------------
@pytest.fixture
def net_quest_omx_client(requests_mock):
    credentials = {"identifier": "UserName", "password": "Password"}

    requests_mock.post(f"{BASE_URL}SessionService/Sessions", status_code=200, headers={"X-Auth-Token": "TEST"})

    return Client(base_url="https://www.example.com", credentials=credentials, verify=True, proxy=False)


@freeze_time("2020-06-03T02:00:00Z")
def test_new_token_login_client(requests_mock):
    """
    Given:
        - NetQuestOMX client object
    When:
        - getting the integration context
    Then:
        - Ensure the expiration time of the new token is calculated as expected in the integration context
    """
    credentials = {"identifier": "UserName", "password": "Password"}

    requests_mock.post(f"{BASE_URL}SessionService/Sessions", status_code=200, headers={"X-Auth-Token": "TEST"})

    Client(base_url="https://www.example.com", credentials=credentials, verify=True, proxy=False)
    integration_context = get_integration_context()

    assert integration_context["expiration_time"] == (datetime.utcnow() + timedelta(seconds=TOKEN_TTL_S)).strftime(
        DATE_FORMAT_FOR_TOKEN
    )


@freeze_time("2020-06-03T02:00:00Z")
def test_old_token_login_client(mocker: MockerFixture):
    """
    Given:
        - Mocked integration context which contains a valid token (not expired)
    When:
        - Building a client
    Then:
        - Ensure that no new token is generated (since the existing token is not expired)
    """
    credentials = {"identifier": "UserName", "password": "Password"}
    context = {
        "Token": "TEST",
        "expiration_time": (datetime.utcnow() + timedelta(seconds=TOKEN_TTL_S)).strftime(DATE_FORMAT_FOR_TOKEN),
    }

    mocker.patch.object(demisto, "getIntegrationContext", return_value=context)
    mocker.patch.object(demisto, "setIntegrationContext")
    mock_refresh_access_token = mocker.patch.object(Client, "_refresh_access_token")

    Client(base_url="https://www.example.com", credentials=credentials, verify=True, proxy=False)

    mock_refresh_access_token.assert_not_called()  # ensuring _refresh_access_token was not called


def test_fetch_events(requests_mock, net_quest_omx_client):
    """
    Given:
        - The all 4 statistic_types_to_fetch
    When:
        - Executing fetch_events function
    Then:
        - Ensure number of events as number of statistic_types_to_fetch (event for each type)
        - Ensure all events contain the 'STAT_TYPE' field
    """

    slot_number, port_number = "1", "1"

    requests_mock.get(
        f"{BASE_URL}Systems/Slot/{slot_number}/Ipfix/Status/Metering", json=util_load_json("test_data/MeteringStas.json")
    )

    requests_mock.get(
        f"{BASE_URL}Systems/Slot/{slot_number}/Ipfix/Status/Export", json=util_load_json("test_data/ExportStats.json")
    )

    requests_mock.get(
        f"{BASE_URL}Systems/Slot/{slot_number}/Ipfix/Status/ExportHwm", json=util_load_json("test_data/ExportPeakFPS.json")
    )

    requests_mock.get(
        f"{BASE_URL}Systems/Slot/{slot_number}/Port/{port_number}/EthernetInterfaces/Status/EthRxTx",
        json=util_load_json("test_data/OptimizationStats.json"),
    )

    statistic_types_to_fetch = ["Metering Stats", "Export Stats", "Export Peaks FPS", "Optimization Stats"]

    events = fetch_events(
        client=net_quest_omx_client,
        slot_number=slot_number,
        port_number=port_number,
        statistic_types_to_fetch=statistic_types_to_fetch,
    )

    assert len(events) == len(statistic_types_to_fetch)

    for event in events:
        assert event["STAT_TYPE"] in [statistic_type.replace(" ", "") for statistic_type in statistic_types_to_fetch]


def test_get_events(requests_mock, net_quest_omx_client):
    """
    Given:
        - 2 statistic_types_to_fetch
    When:
        - Executing get_events function
    Then:
        - Ensure number of events as number of statistic_types_to_fetch (event for each type)
    """

    params = {"slot": "1", "port": "1"}
    args = {"statistic_types_to_fetch": "Metering Stats,Export Stats"}

    requests_mock.get(
        f'{BASE_URL}Systems/Slot/{params["slot"]}/Ipfix/Status/Metering', json=util_load_json("test_data/MeteringStas.json")
    )

    requests_mock.get(
        f'{BASE_URL}Systems/Slot/{params["slot"]}/Ipfix/Status/Export', json=util_load_json("test_data/ExportStats.json")
    )

    events = get_events(net_quest_omx_client, params, args)

    assert len(events) == 2


def test_get_events_invalid_input(net_quest_omx_client):
    """
    Given:
        - invalid inputs -  statistic_types_to_fetch
    When:
        - Executing get_events function
    Then:
        - Ensure an exception is thrown
    """

    params = {"slot": "1", "port": "1"}
    args = {"statistic_types_to_fetch": "Metering ,Export"}
    with pytest.raises(DemistoException) as de:
        get_events(net_quest_omx_client, params, args)
    assert f"{argToList(args['statistic_types_to_fetch'])} is not a valid type" in de.value.message
    assert f"Valid types are {list(StatType._value2member_map_.keys())}" in de.value.message


def test_address_list_upload_command(mocker, requests_mock, net_quest_omx_client):
    """
    Given:
        - An entry_id (for a file to upload)
        - A mocked client
    When:
        - Executing netquest-address-list-upload command
    Then:
        - Ensure command is not failed and the readable_output as expected
    """
    mocker.patch.object(demisto, "getFilePath", return_value={"path": "test_data/test_file.txt", "name": "test_file"})
    requests_post = requests_mock.post(f"{BASE_URL}v1/UpdateService/ImportList/Config", json={})
    result = address_list_upload_command(client=net_quest_omx_client, args={"entry_id": "AAAAAAaaaa"})
    assert result.readable_output == "Address list was successfully uploaded"
    assert requests_post.called


def test_address_list_optimize_command(requests_mock, net_quest_omx_client):
    """
    Given:
        - A mocked client
    When:
        - Executing netquest-address-list-optimize command
    Then:
        - Ensure command is not failed and the outputs_prefix as expected
    """
    requests_mock.get(f"{BASE_URL}Systems/Filters/Address/Status/Optimization", json={})
    result = address_list_optimize_command(client=net_quest_omx_client)
    assert result.outputs_prefix == "NetQuest.AddressList"


def test_address_list_create_command(requests_mock, net_quest_omx_client):
    """
    Given:
        - A mocked client
        - A name and a value for the new list
    When:
        - Executing netquest-address-list-create command
    Then:
        - Ensure command is not failed and the readable_output as expected
    """
    name, value = "TEST", "0.0.0.0/24"
    requests_mock.post(f"{BASE_URL}Systems/Filters/ListImport/Config/Install", json={})
    result = address_list_create_command(client=net_quest_omx_client, args={"name": name, "value": value})
    assert result.readable_output == f"Successfully created a new instance of {name}"


def test_address_list_rename_command(requests_mock, net_quest_omx_client):
    """
    Given:
        - A mocked client
        - The name of the list to rename
        - A new name and a new value for the list
    When:
        - Executing netquest-address-list-rename command
    Then:
        - Ensure command is not failed and the readable_output as expected
    """
    new_name, new_value, existing_name = "NEW_TEST", "0.0.0.0/24", "TEST"
    requests_mock.put(f"{BASE_URL}Systems/Filters/ListImport/ListName/{existing_name}/Config/Install", json={})
    result = address_list_rename_command(
        client=net_quest_omx_client, args={"new_name": new_name, "new_value": new_value, "existing_name": existing_name}
    )
    assert result.readable_output == f"Successfully renamed {existing_name} to {new_name}"


def test_address_list_delete_command(requests_mock, net_quest_omx_client):
    """
    Given:
        - A mocked client
        - The name of the list to rename
        - A new name for the list
    When:
        - Executing netquest-address-list-rename command
    Then:
        - Ensure command is not failed and the readable_output as expected
    """
    name = "TEST"
    requests_mock.delete(f"{BASE_URL}Systems/Filters/Address/ListName/{name}/Config/List", json={})
    result = address_list_delete_command(client=net_quest_omx_client, args={"name": name})
    assert result.readable_output == f"Successfully deleted {name} list"