import pytest

from backend.app.celery_app import celery
from backend.app.models import TagKind
from backend.app.services.tag_service import TagService

pytestmark = pytest.mark.integration


@pytest.fixture(autouse=True)
def eager():
    celery.conf.task_always_eager = True
    yield
    celery.conf.task_always_eager = False


@pytest.mark.asyncio
async def test_get_and_patch_settings(client):
    resp = await client.get("/api/ml/settings")
    assert resp.status_code == 200
    body = await resp.get_json()
    # Default lowered 0.95 → 0.50 on 2026-06-01 (alembic 0029) — 0.95
    # hid most general suggestions in the view modal.
    assert body["suggestion_threshold_general"] == pytest.approx(0.50)
    # Retired threshold columns must not appear in the payload.
    assert "suggestion_threshold_artist" not in body
    assert "suggestion_threshold_copyright" not in body

    resp = await client.patch(
        "/api/ml/settings", json={"suggestion_threshold_general": 0.90}
    )
    assert resp.status_code == 200
    assert (await resp.get_json())["suggestion_threshold_general"] == pytest.approx(0.90)


@pytest.mark.asyncio
async def test_backfill_and_recompute_trigger(client):
    r1 = await client.post("/api/ml/backfill")
    assert r1.status_code == 202
    r2 = await client.post("/api/ml/recompute-centroids")
    assert r2.status_code == 202


@pytest.mark.asyncio
async def test_rename_tag(client, db):
    tag = await TagService(db).find_or_create("oldname", TagKind.character)
    await db.commit()
    resp = await client.patch(f"/api/tags/{tag.id}", json={"name": "New Name"})
    assert resp.status_code == 200
    assert (await resp.get_json())["name"] == "New Name"


@pytest.mark.asyncio
async def test_rename_collision_409(client, db):
    svc = TagService(db)
    await svc.find_or_create("Taken", TagKind.character)
    other = await svc.find_or_create("Mover", TagKind.character)
    await db.commit()
    resp = await client.patch(f"/api/tags/{other.id}", json={"name": "Taken"})
    assert resp.status_code == 409