from src.seo.autofill import ALLOWED_TAGS, DEFAULT_TAG, _coerce, _system_prompt

BASE = {
    "meta_title": "t",
    "meta_description": "d",
    "custom_excerpt": "e",
    "image_query": "q",
    "image_context": "c",
}


def test_coerce_es_drops_invented_tags():
    obj = dict(BASE, tags=["uap", "humanoides", "Desclasificados", "investigacion-2"])
    out = _coerce(obj, "es")
    assert out["tags"] == ["uap", "desclasificados"]


def test_coerce_es_falls_back_to_default():
    obj = dict(BASE, tags=["pentagono", "encuentros-cercanos"])
    out = _coerce(obj, "es")
    assert out["tags"] == [DEFAULT_TAG["es"]]


def test_coerce_en_still_constrained():
    obj = dict(BASE, tags=["uap", "investigacion"])
    out = _coerce(obj, "en")
    assert out["tags"] == ["uap"]


def test_system_prompt_lists_allowed_tags_per_lang():
    es = _system_prompt("es")
    en = _system_prompt("en")
    for tag in ALLOWED_TAGS["es"]:
        assert tag in es
    # La regla anti-legacy 'never use "investigacion"' es solo para EN: en ES
    # "investigacion" es el tag canónico del allow-list.
    assert 'never use "investigacion"' in en
    assert 'never use "investigacion"' not in es
    assert "ONLY from this exact list" in es


# ─── topic collision ─────────────────────────────────────────────────────────

from src.seo.autofill import collision_notice, _slugify_title

CORPUS = [
    {"id": "1", "status": "published", "slug": "kecksburg-1965-acorn-ufo-missing-nasa-files",
     "title": 'Kecksburg 1965: The Acorn-Shaped Object, the Missing NASA Files, and "Pennsylvania\'s Roswell"'},
    {"id": "2", "status": "scheduled", "slug": "uss-russell-2019-pyramid-uap-channel-islands",
     "title": "USS Russell 2019: The Pyramid UAP Video and the Channel Islands Drone Swarm"},
]


def test_collision_fires_on_same_case_and_year():
    note = collision_notice("Kecksburg 1965: New Acorn Evidence", CORPUS)
    assert note is not None
    assert "kecksburg" in note.lower()
    assert "1965" in note


def test_collision_none_on_distinct_case():
    assert collision_notice("Tehran 1976: The Jet-Disabling Encounter", CORPUS) is None


def test_collision_none_on_empty_corpus():
    assert collision_notice("Kecksburg 1965: Anything", []) is None


def test_collision_note_is_markdown_safe():
    corpus = [{"id": "9", "status": "published", "slug": "weird-1990-case",
               "title": "Weird *1990* [Case] with_underscores and `ticks`"}]
    note = collision_notice("Weird 1990: Case Revisited", corpus)
    assert note is not None
    # las entidades Markdown de títulos ajenos se sanean (solo quedan las nuestras)
    bullets = [line for line in note.split("\n") if line.startswith("• ")]
    assert bullets
    for line in bullets:
        for ch in "*_`[]":
            assert ch not in line


def test_slugify_title():
    assert _slugify_title("USS Russell 2019: The Pyramid UAP!") == "uss-russell-2019-the-pyramid-uap"