from buddy_fusion.fallback import edit_boxes_fallback

BASE = [{"x": 0, "y": 0, "z": 0, "w": 4, "h": 4, "d": 4, "color": "#4caf50"}]


def test_recolor_changes_dominant_colour():
    out = edit_boxes_fallback(BASE, "make it purple")
    assert any(b["color"] == "#a855f7" for b in out)
    assert all(b["color"] != "#4caf50" for b in out)  # body got recolored


def test_add_horn_appends_boxes():
    out = edit_boxes_fallback(BASE, "add two horns")
    assert len(out) > len(BASE)


def test_add_wings_appends_boxes():
    out = edit_boxes_fallback(BASE, "give it wings")
    assert len(out) > len(BASE)


def test_unknown_instruction_returns_unchanged_content():
    out = edit_boxes_fallback(BASE, "zxqw nonsense")
    assert out == BASE


def test_does_not_mutate_input():
    snapshot = [dict(b) for b in BASE]
    edit_boxes_fallback(BASE, "make it purple")
    assert BASE == snapshot


def test_empty_input_returns_empty():
    assert edit_boxes_fallback([], "add a horn") == []


def test_fake_runtime_edit_creature():
    from buddy_fusion.runtime import FakeBuddyRuntime
    rt = FakeBuddyRuntime()
    genome = {"name": "X", "archetype": "chick", "parts": []}
    g, boxes, tweaks, status = rt.edit_creature(genome, BASE, "add two horns")
    assert len(boxes) > len(BASE)
    assert status.used_fallback
    assert g["name"] == "X"
    assert len(tweaks) == 4 and all(isinstance(t, str) and t for t in tweaks)