import pytest
from CommonServerPython import *
from GetIndicatorsByQuery import get_parsed_populated_fields, main

ioc1 = {
    "id": 1,
    "value": "abc@demisto.com",
    "indicator_type": "Email",
    "score": 2,
    "CustomFields": {"testField": "testValue", "test2Fields": "testValue2"},
}

ioc2 = {
    "id": 2,
    "value": "abc2@demisto.com",
    "indicator_type": "Email",
    "score": 2,
    "CustomFields": {"testField": "testValue", "test2Fields": "testValue2"},
}


def search_indicators_side_effect(**kwargs):
    def parse_ioc(ioc: dict[str, Any]) -> dict:
        if not (fields_to_populate := argToList(kwargs.get("populateFields"))):
            return ioc
        custom_fields = {k: v for k, v in ioc["CustomFields"].items() if k in fields_to_populate}
        ioc = {k: v for k, v in ioc.items() if k in fields_to_populate}
        return ioc | {"CustomFields": custom_fields}

    return {"iocs": [parse_ioc(ioc1.copy()), parse_ioc(ioc2.copy())], "total": 2}


def get_args():
    args = {}
    args["limit"] = 500
    args["offset"] = 0
    return args


def get_args_with_hashing():
    args = {}
    args["limit"] = 500
    args["offset"] = 0
    args["fieldsToHash"] = "test2*"
    return args


def get_args_with_populate():
    args = {}
    args["limit"] = 500
    args["offset"] = 0
    args["populateFields"] = "testField,indicator_type"
    return args


def get_args_with_unpopulate():
    args = {}
    args["limit"] = 500
    args["offset"] = 0
    args["dontPopulateFields"] = "testField,indicator_type"
    return args


def test_main(mocker):
    mocker.patch.object(demisto, "args", side_effect=get_args)
    mocker.patch.object(demisto, "searchIndicators", side_effect=search_indicators_side_effect)

    entry = main()
    indicators = entry["Contents"]
    assert len(indicators) == 2
    assert indicators[0]["indicator_type"] == "Email"
    assert indicators[0]["test2Fields"] == "testValue2"


def test_main_with_hashing(mocker):
    mocker.patch.object(demisto, "args", side_effect=get_args_with_hashing)
    mocker.patch.object(demisto, "searchIndicators", side_effect=search_indicators_side_effect)

    entry = main()
    indicators = entry["Contents"]
    assert len(indicators) == 2
    assert indicators[0]["indicator_type"] == "Email"
    assert indicators[0]["test2Fields"] == "19a5feec8b080d4865be5c7f69c320db"


def test_main_populate(mocker):
    """
    Given:
    - Command arguments: populateFields="testField,indicator_type", dontPopulateFields is not provided
    When:
    - Running GetIndicatorsByQuery
    Then:
    - Ensure the expected fields are returned
    - Ensure `populateFields` kwarg was passed to `searchIndicators` call
    """
    mocker.patch.object(demisto, "args", side_effect=get_args_with_populate)
    search_indicators = mocker.patch.object(demisto, "searchIndicators", side_effect=search_indicators_side_effect)

    entry = main()
    indicators = entry["Contents"]
    assert len(indicators) == 2
    assert set(indicators[0].keys()) == {"indicator_type", "testField"}
    assert "populateFields" in search_indicators.call_args.kwargs


def test_main_unpopulate(mocker):
    """
    Given:
    - Command arguments: dontPopulateFields="testField,indicator_type", populateFields is not provided
    When:
    - Running GetIndicatorsByQuery
    Then:
    - Ensure the expected fields are not returned
    - Ensure `populateFields` kwarg wasn't passed to `searchIndicators` call
    """
    mocker.patch.object(demisto, "args", side_effect=get_args_with_unpopulate)
    search_indicators = mocker.patch.object(demisto, "searchIndicators", side_effect=search_indicators_side_effect)
    entry = main()
    indicators = entry["Contents"]
    assert len(indicators) == 2
    assert "testField" not in indicators[0]
    assert "indicator_type" not in indicators[0]
    assert "populateFields" not in search_indicators.call_args.kwargs


@pytest.mark.parametrize(
    "fields_to_parse, expected_result",
    [
        pytest.param("ALL", None, id="Overriding non possible empty parameter."),
        pytest.param([], frozenset(), id="Case impossible due to yml default values"),
        pytest.param(["field1", "field2", "field3"], frozenset(["field1", "field2", "field3"]), id="Normal fields populating"),
        pytest.param(
            ["field1", "field1", "field2"], frozenset(["field1", "field2"]), id="Normal fields populating with duplicates"
        ),
        pytest.param(
            ["field1", "RelatedIncCount"],
            frozenset(["field1", "RelatedIncCount", "investigationsCount"]),
            id="populating `RelatedIncCount` field",
        ),
        pytest.param(
            ["field1", "investigationsCount"],
            frozenset(["field1", "investigationsCount"]),
            id="populating `investigationsCount` field",
        ),
        pytest.param(["ALL", "field1", "field2"], None, id="Using both `ALL` and other fields."),
    ],
)
def test_get_parsed_populated_fields(fields_to_parse, expected_result):
    """
    Given: A list of fields to parse for an indicator
    When: The function is called with these fields
    Then: returns a frozenset containing the parsed fields (according to API need), or None if all fields are requested.
    """

    result = get_parsed_populated_fields(fields_to_parse)
    assert result == expected_result