from __future__ import annotations

from collections.abc import Sequence


class InvalidNumbersError(TypeError):
    """Raised when the input is not a valid sequence of integers."""


def sum_of_squares_of_even_numbers(numbers: Sequence[int]) -> int:
    """Return the sum of squared even integers in a sequence.

    Args:
        numbers: A sequence of integers.

    Returns:
        The sum of ``value * value`` for each even integer in ``numbers``.

    Raises:
        InvalidNumbersError: If ``numbers`` is not a sequence of integers.
    """
    if numbers is None:
        raise InvalidNumbersError("numbers cannot be None")

    if isinstance(numbers, (str, bytes, bytearray)):
        raise InvalidNumbersError(
            "numbers must be a sequence of integers, not a string-like object"
        )

    if not isinstance(numbers, Sequence):
        raise InvalidNumbersError(
            f"numbers must be a sequence of integers, got {type(numbers).__name__}"
        )

    total = 0
    for index, value in enumerate(numbers):
        if isinstance(value, bool) or not isinstance(value, int):
            raise InvalidNumbersError(
                f"numbers[{index}] must be an int, got {type(value).__name__}: {value!r}"
            )

        if value % 2 == 0:
            total += value * value

    return total


# Tests

import pytest


def test_sum_of_squares_of_even_numbers_happy_path():
    assert sum_of_squares_of_even_numbers([1, 2, 3, 4, 6]) == 56


def test_sum_of_squares_of_even_numbers_empty_sequence():
    assert sum_of_squares_of_even_numbers([]) == 0


def test_sum_of_squares_of_even_numbers_rejects_none():
    with pytest.raises(InvalidNumbersError, match="cannot be None"):
        sum_of_squares_of_even_numbers(None)  # type: ignore[arg-type]


def test_sum_of_squares_of_even_numbers_rejects_string_like_input():
    with pytest.raises(InvalidNumbersError, match="string-like object"):
        sum_of_squares_of_even_numbers("2468")  # type: ignore[arg-type]


def test_sum_of_squares_of_even_numbers_rejects_invalid_element():
    with pytest.raises(InvalidNumbersError, match=r"numbers\[2\] must be an int"):
        sum_of_squares_of_even_numbers([2, 4, 3.5])  # type: ignore[list-item]