from buddy_fusion.edit_parser import parse_edit, match_part


def test_generic_noun_picks_generic_part():
    assert match_part("give it wings") == "wings"
    assert match_part("add a tail") == "tail"
    assert match_part("add horns") == "horns"


def test_specific_phrase_beats_generic():
    assert match_part("add bat wings") == "wing_bat"
    assert match_part("a bushy fox tail") == "tail_fox"
    assert match_part("put a wizard hat on it") == "wizard_hat"


def test_no_match_returns_none():
    assert match_part("asdfghjkl zzz") is None
    assert parse_edit("asdfghjkl zzz") is None


def test_count_from_number_word_and_digit():
    assert parse_edit("add five arms").count == 5
    assert parse_edit("give it 3 horns").count == 3
    assert parse_edit("add a tail").count == 1  # article is not a multi-count


def test_scale_from_size_adjective():
    assert parse_edit("add big wings").scale == 1.5
    assert parse_edit("a huge tail").scale == 2.0
    assert parse_edit("tiny ears").scale == 0.5
    assert parse_edit("add wings").scale == 1.0


def test_anchor_override():
    assert parse_edit("add a house behind it").anchor == "rear"
    assert parse_edit("put a hat on top").anchor == "top"
    assert parse_edit("wings under it").anchor == "bottom"


def test_anchor_word_does_not_fire_inside_part_name():
    # "backpack" contains "back" but must not be parsed as a rear anchor cue
    spec = parse_edit("add a backpack")
    assert spec.part == "backpack"


def test_rotation_keyword():
    assert parse_edit("add horns upside down").rotation == ("x", 2)
    assert parse_edit("a tail sideways").rotation == ("z", 1)
    assert parse_edit("add wings").rotation is None


def test_color_override():
    assert parse_edit("add red horns").color == "#ef4444"
    assert parse_edit("add horns").color is None


def test_combined_instruction():
    spec = parse_edit("add five big bat wings behind it")
    assert spec.part == "wing_bat"
    assert spec.count == 5
    assert spec.scale == 1.5
    assert spec.anchor == "rear"