from pathlib import Path

from aoc_2024.day3 import part1


def test_detect_mul_is_successful():
    res = part1.detect_mul("mul(1,5)")[0]
    assert res[0] == "1"
    assert res[1] == "5"


def test_detect_mul_with_3_digits_is_successful():
    assert part1.detect_mul("mul(123,567)")


def test_detect_mul_with_4_digits_fails():
    assert not part1.detect_mul("mul(1234,5678)")


def test_detect_mul_with_space_fails():
    assert not part1.detect_mul("mul(123 ,678)")


def test_detect_mul_without_mul_fails():
    assert not part1.detect_mul("div(1,5)")


def test_detect_multiple_muls_is_successful():
    res = part1.detect_mul(
        "xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))"
    )
    match1 = res[0]
    assert match1[0] == "2"
    assert match1[1] == "4"
    match2 = res[1]
    assert match2[0] == "5"
    assert match2[1] == "5"
    match3 = res[2]
    assert match3[0] == "11"
    assert match3[1] == "8"
    match4 = res[3]
    assert match4[0] == "8"
    assert match4[1] == "5"


def test_compute_multiplication_from_mul():
    assert part1.compute_multiplication("mul(1,5)") == 5


def test_compute_multiplication2_from_mul():
    assert part1.compute_multiplication("mul(8,5)") == 40


def test_compute_multiplication2_from_multiple_muls():
    assert (
        part1.compute_multiplication(
            "xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))"
        )
        == 161
    )


def test_main():
    file = Path(__file__).parent / "test-data-part1"
    assert part1.main(file) == 161