import pytest

from tft.constants.loader import load_constants, validate


@pytest.fixture
def c():
    return load_constants(17)


def test_loads_and_validates(c):
    assert c["set"] == 17


def test_shop_odds_shape(c):
    assert len(c["shop"]["odds"]) == c["xp"]["max_level"]
    for row in c["shop"]["odds"]:
        assert sum(row) == 100


def test_xp_reaches_max_level(c):
    assert len(c["xp"]["to_next"]) == c["xp"]["max_level"] - 1
    assert all(x > 0 for x in c["xp"]["to_next"])


def test_interest_and_streaks(c):
    g = c["gold"]
    assert g["interest_cap"] >= 1
    streaks = g["streak_gold"]
    assert streaks == sorted(streaks)
    assert all(gold > 0 for _, gold in streaks)


def test_missing_set_raises():
    with pytest.raises(FileNotFoundError):
        load_constants(99)


def test_validation_catches_bad_odds(c):
    c["shop"]["odds"][0] = [99, 0, 0, 0, 0]
    with pytest.raises(ValueError, match="sum to 99"):
        validate(c)