from pathlib import Path

import pytest

pytest.importorskip("fastapi")

from fastapi.testclient import TestClient

import services.vector_search_service.main as vector_mod
from services.vector_search_service.main import app


def test_upsert_query_delete_snapshot(tmp_path: Path) -> None:
    vector_mod.INDEX_PATH = tmp_path / "index.json"
    client = TestClient(app)
    emb = [0.1] * 512

    r1 = client.post('/upsert', json={'identity_id': 'u1', 'embedding': emb})
    assert r1.status_code == 200

    r2 = client.post('/query', json={'embedding': emb, 'top_k': 1})
    assert r2.status_code == 200
    payload = r2.json()
    assert payload['matches'][0]['identity_id'] == 'u1'

    r3 = client.post('/snapshot')
    assert r3.status_code == 200
    assert vector_mod.INDEX_PATH.exists()

    r4 = client.post('/delete', json={'identity_id': 'u1'})
    assert r4.status_code == 200
    assert r4.json()['removed'] is True