from poetic.textfree import FULL_BLEED_PAINTING_RULE, TEXT_FREE_RULE, ensure_text_free


def test_appends_canonical_no_text_rule_when_brief_omits_it():
    out = ensure_text_free("A misty river at dawn.")
    assert out.startswith("A misty river at dawn.")
    assert TEXT_FREE_RULE in out


def test_appends_full_bleed_rule_when_brief_omits_it():
    out = ensure_text_free("A lotus pond in a classical Chinese painting style.")
    assert FULL_BLEED_PAINTING_RULE in out
    assert "full-bleed 3:4 portrait painting" in out
    assert "no black bands" in out
    assert "no split panels" in out


def test_does_not_duplicate_text_free_rule():
    out = ensure_text_free(f"A quiet lake. {TEXT_FREE_RULE}")
    assert out.count(TEXT_FREE_RULE) == 1


def test_does_not_duplicate_full_bleed_rule():
    out = ensure_text_free(f"A quiet lake. {FULL_BLEED_PAINTING_RULE}")
    assert out.count(FULL_BLEED_PAINTING_RULE) == 1


def test_keeps_original_brief_intact():
    assert "Bamboo in snow" in ensure_text_free("Bamboo in snow")


def test_exports_exact_safety_rule_strings():
    assert TEXT_FREE_RULE == (
        "a painting only — no text, no Chinese characters, no calligraphy, no seals, no watermark"
    )
    assert FULL_BLEED_PAINTING_RULE == (
        "full-bleed 3:4 portrait painting -- fill the entire canvas edge to edge; no borders,"
        " no frame, no mat, no margins, no black bands, no poster layout, no split panels, no embedded text"
    )