from openrgb_hue.color import Color, hsv_lerp, rgb_lerp, rgb_to_hsv


def test_color_clamps_out_of_range():
    assert Color(300, -10, 128) == Color(255, 0, 128)


def test_color_hex_roundtrip():
    c = Color(18, 52, 86)
    assert c.to_hex() == "123456"
    assert Color.from_hex("#123456") == c


def test_rgb_lerp_endpoints_and_midpoint():
    a, b = Color(0, 0, 0), Color(100, 200, 50)
    assert rgb_lerp(a, b, 0.0) == a
    assert rgb_lerp(a, b, 1.0) == b
    mid = rgb_lerp(a, b, 0.5)
    assert mid == Color(50, 100, 25)


def test_hsv_lerp_endpoints():
    a, b = Color(255, 0, 0), Color(0, 0, 255)
    assert hsv_lerp(a, b, 0.0) == a
    assert hsv_lerp(a, b, 1.0) == b


def test_hsv_lerp_takes_shortest_hue_path():
    # Hue 350deg -> 10deg should pass through 0deg/360deg, not through 180deg.
    a = Color.from_hex("#ff0022")  # hue ~350deg
    b = Color.from_hex("#ff2200")  # hue ~10deg
    mid = hsv_lerp(a, b, 0.5)
    mid_h, _, _ = rgb_to_hsv(mid)
    # Near 0/360deg, not anywhere near 180deg.
    assert mid_h < 0.05 or mid_h > 0.95


def test_scale_brightness():
    c = Color(200, 100, 50)
    assert c.scale_brightness(0.5) == Color(100, 50, 25)
    assert c.scale_brightness(0.0) == Color(0, 0, 0)


def test_to_openrgb_conversion():
    c = Color(1, 2, 3)
    rgb = c.to_openrgb()
    assert (rgb.red, rgb.green, rgb.blue) == (1, 2, 3)