"""Contrat JSON de `POST /v1/train` — voir `schemas.py`/`routes/train.py`."""

import pytest
from fastapi.testclient import TestClient

from intent_service.config import settings
from intent_service.main import app

_HEADERS = {"X-Intent-Service-Secret": settings.intent_service_secret}


@pytest.fixture
def client():
    with TestClient(app) as test_client:
        yield test_client


def test_train_returns_counts(client: TestClient):
    response = client.post(
        "/v1/train",
        headers=_HEADERS,
        json={
            "locale": "fr",
            "entries": [
                {"uid": "melt", "synonyms": ["faire fondre"], "utterances": ["faire fondre le beurre"]},
                {"uid": "boil", "synonyms": ["bouillir"], "utterances": ["faire bouillir l'eau"]},
            ],
        },
    )
    assert response.status_code == 200
    body = response.json()
    assert body == {"locale": "fr", "labelCount": 2, "utteranceCount": 2, "synonymCount": 2}


def test_train_with_unsupported_locale_returns_422(client: TestClient):
    response = client.post(
        "/v1/train",
        headers=_HEADERS,
        json={"locale": "de", "entries": [{"uid": "melt", "synonyms": [], "utterances": []}]},
    )
    assert response.status_code == 422


def test_train_with_empty_entries_returns_zero_counts(client: TestClient):
    response = client.post("/v1/train", headers=_HEADERS, json={"locale": "en", "entries": []})
    assert response.status_code == 200
    assert response.json() == {"locale": "en", "labelCount": 0, "utteranceCount": 0, "synonymCount": 0}