import pytest

from GoogleApigeeEventCollector import (
    Client,
    fetch_events,
    get_events_command,
)


def mock_client(mocker):
    client = Client(
        base_url="https://test.com", verify=False, proxy=False, org_name="org", username="user", password="password", zone="zone"
    )
    mocker.patch.object(Client, "get_access_token", return_value={"access_token": "access_token"})
    mocker.patch.object(
        Client,
        "_http_request",
        return_value={"access_token": "access_token", "expires_in": 3600, "refresh_token": "refresh_token"},
    )
    return client


def test_get_events_command(requests_mock, mocker):
    """
    Tests google-apigee-get-events command function.
    Checks the output of the command function with the expected output.
    """
    client = mock_client(mocker)
    mock_response = {
        "auditRecord": [generate_mocked_event(13), generate_mocked_event(15)],
        "total_count": 2,
    }
    args = {
        "from_date": 3,
        "limit": 2,
    }
    requests_mock.get(f"https://test.com/v1/audits/organizations/{client.org_name}", json=mock_response)
    events, _ = get_events_command(client, args)

    assert len(events) == mock_response.get("total_count")
    assert events == mock_response.get("auditRecord")


def generate_mocked_event(event_time: int):
    return {"operation": "OPER", "requestUri": "some/uri", "responseCode": "200", "timeStamp": event_time, "user": "user"}


@pytest.mark.parametrize(
    "scenario, last_fetch, limit, events_amount, events_per_time, new_events_amount, last_event_time, events_size",
    [
        (
            "get all events between the timespan",  # scenario
            1,  # last_fetch
            7,  # limit
            0,  # events_amount
            [9, 9, 8, 7, 6, 5, 2],  # events_per_time,
            2,  # new_events_amount
            9,  # last_event_time
            7,  # events_size
        ),
        (
            "get all events between the timespan and limit > fetched_events",  # scenario
            1,  # last_fetch
            10,  # limit
            0,  # events_amount
            [9, 9, 8, 7, 6, 5, 2],  # events_per_time,
            0,  # new_events_amount
            9,  # last_event_time
            7,  # events_size
        ),
        (
            "testing starting from a timestamp where we already have existing events in the last fetch",  # scenario
            2,  # last_fetch
            3,  # limit
            3,  # events_amount
            [55, 8, 7, 2, 2, 2],  # events_per_time
            1,  # new_events_amount
            55,  # last_event_time
            3,  # events_size
        ),
        (
            "all events were already fetched",  # scenario
            9,  # last_fetch
            3,  # limit
            3,  # events_amount
            [9, 9, 9],  # events_per_time
            0,  # new_events_amount
            0,  # last_event_time
            0,  # events_size
        ),
        (
            "fetch more than limit",  # scenario
            1,  # last_fetch
            3,  # limit
            0,  # events_amount
            [9, 8, 7, 6, 5, 2],  # events_per_time
            1,  # new_events_amount
            6,  # last_event_time
            3,  # events_size
        ),
        (
            "fetch multiple events at the same time",  # scenario
            1,  # last_fetch
            5,  # limit
            0,  # events_amount
            [8, 8, 8, 8, 5, 2],  # events_per_time
            3,  # new_events_amount
            8,  # last_event_time
            5,  # events_size
        ),
        (
            "there is no logs",  # scenario
            1,  # last_fetch
            5,  # limit
            0,  # events_amount
            [],  # events_per_time
            0,  # new_events_amount
            0,  # last_event_time
            0,  # events_size
        ),
    ],
)
def test_fetch_events(
    mocker, scenario, last_fetch, limit, events_amount, events_per_time, new_events_amount, last_event_time, events_size
):
    """
    Tests fetch-events command function.
    Checks the output of the command function with the expected output.
    """

    def mock_get_logs(from_date, to_time):
        events = [generate_mocked_event(event_time) for event_time in events_per_time]
        return {
            "auditRecord": events,
            "total_count": len(events),
        }

    mocked_client = mocker.Mock()
    mocked_client.get_logs.side_effect = mock_get_logs
    mocked_client.max_fetch = limit

    last_run = {"last_fetch_events_amount": events_amount, "last_fetch_timestamp": last_fetch}
    next_run, events = fetch_events(client=mocked_client, last_run=last_run, limit=limit)

    assert len(events) == events_size
    assert (
        next_run.get("last_fetch_events_amount") == new_events_amount
    ), f"{scenario} - set last run does not match expected value"
    if events:
        assert events[0].get("timeStamp") == last_event_time
        assert events[-1].get("timeStamp") >= last_fetch


def test_test_module(requests_mock, mocker):
    """
    Tests test-module command function.
    Checks the output of the command function with the expected output.
    """
    from GoogleApigeeEventCollector import test_module

    client = mock_client(mocker)
    requests_mock.get(f"https://test.com/v1/audits/organizations/{client.org_name}", json={})
    res = test_module(client)

    assert res == "ok"


@pytest.mark.parametrize(
    "scenario, token_initiate_time, token_expiration_seconds, current_time, result",
    [
        (
            "valid token",  # scenario
            120,  # token_initiate_time
            400,  # token_expiration_seconds
            140,  # current_time
            True,  # result
        ),
        (
            "invalid token",  # scenario
            120,  # token_initiate_time
            100,  # token_expiration_seconds
            300,  # current_time
            False,  # result
        ),
    ],
)
def test_is_token_valid(mocker, scenario, token_initiate_time, token_expiration_seconds, current_time, result):
    is_token_valid = Client.is_token_valid(token_initiate_time, token_expiration_seconds, current_time)
    assert is_token_valid == result, f"{scenario} - does not match expected value"


def test_get_token_with_username(mocker):
    """
    Given:
        - A mock client configured with username and password credentials.
    When:
        - Calling `get_token_request` to retrieve an access token.
    Then:
        - Ensure the HTTP request is made with the correct method, URL, headers, and body.
        - Verify the returned access_token, expires_in, and refresh_token values.
    """
    client = mock_client(mocker)
    spy_http = mocker.spy(Client, "_http_request")
    access_token, expires_in, refresh_token = client.get_token_request()
    assert access_token == "access_token"
    assert expires_in == 3600
    assert refresh_token == "refresh_token"
    args = spy_http.call_args
    assert args[0] == ("POST",)
    assert args[1] == {
        "full_url": "https://zone.login.apigee.com/oauth/token",
        "url_suffix": "/oauth/token",
        "data": {"grant_type": "password", "username": "user", "password": "password"},
        "headers": {
            "Content-Type": "application/x-www-form-urlencoded;charset=utf-8",
            "Accept": "application/json;charset=utf-8",
            "Authorization": "Basic ZWRnZWNsaTplZGdlY2xpc2VjcmV0",
        },
    }


def test_get_token_with_valid_refresh_token(mocker):
    """
    Given:
        - A mock client configured to use a refresh token.
    When:
        - Calling `get_token_request` with a valid refresh token.
    Then:
        - Ensure the HTTP request is sent as a POST to the correct URL.
        - Confirm the payload includes the proper grant type and refresh token.
        - Verify the expected access_token, expires_in, and refresh_token are returned.
    """
    client = mock_client(mocker)
    spy_http = mocker.spy(Client, "_http_request")
    access_token, expires_in, refresh_token = client.get_token_request(refresh_token="refresh_token")
    assert access_token == "access_token"
    assert expires_in == 3600
    assert refresh_token == "refresh_token"

    args = spy_http.call_args
    assert args[0] == ("POST",)
    assert args[1] == {
        "full_url": "https://zone.login.apigee.com/oauth/token",
        "url_suffix": "/oauth/token",
        "data": {"grant_type": "refresh_token", "refresh_token": "refresh_token"},
        "headers": {
            "Content-Type": "application/x-www-form-urlencoded;charset=utf-8",
            "Accept": "application/json;charset=utf-8",
            "Authorization": "Basic ZWRnZWNsaTplZGdlY2xpc2VjcmV0",
        },
    }


def test_get_token_with_invalid_refresh_token(mocker):
    """
    Given:
        - A mock client configured to use a refresh token.
    When:
        - Calling `get_token_request` with an invalid refresh token that triggers an exception.
    Then:
        - The client should retry the request using the password grant type.
        - Ensure the first HTTP request uses the refresh token grant type with the correct payload.
        - Ensure the second HTTP request uses the password grant type with the correct credentials.
        - Verify that the final response includes the expected access_token, expires_in, and refresh_token.
    """
    client = mock_client(mocker)
    http_mock = mocker.patch.object(
        Client,
        "_http_request",
        side_effect=[
            Exception("Invalid refresh token"),
            {"access_token": "access_token", "expires_in": 3600, "refresh_token": "refresh_token"},
        ],
    )
    access_token, expires_in, refresh_token = client.get_token_request(refresh_token="refresh_token")

    assert http_mock.call_count == 2
    first_call = http_mock.call_args_list[0]
    second_call = http_mock.call_args_list[1]

    # Inspecting the first call
    assert first_call[0] == ("POST",)
    assert first_call[1]["data"]["grant_type"] == "refresh_token"
    assert first_call[1]["data"]["refresh_token"] == "refresh_token"

    # Inspecting the second call
    assert second_call[0] == ("POST",)
    assert second_call[1]["data"]["grant_type"] == "password"
    assert second_call[1]["data"]["username"] == "user"
    assert second_call[1]["data"]["password"] == "password"

    assert access_token == "access_token"
    assert expires_in == 3600
    assert refresh_token == "refresh_token"