import pytest
from fastapi.testclient import TestClient

from web.app import create_app


@pytest.fixture()
def client():
    app = create_app()
    with TestClient(app) as c:
        yield c


def test_healthz(client):
    assert client.get("/healthz").json()["status"] == "ok"


def test_index_page(client):
    res = client.get("/")
    assert res.status_code == 200
    assert "Anonimizzatore" in res.text


def test_detect_and_render_flow(client):
    text = "Il RUP RSSMRA85T10A562S, PEC ufficio@pec.comune.it, CIG 7654321000."
    res = client.post("/api/detect", json={"text": text, "min_confidence": 0.7})
    assert res.status_code == 200
    data = res.json()
    assert data["detections"] >= 2
    doc_id = data["doc_id"]
    types = {s["entity_type"] for s in data["render"]["json_export"]["by_severity"]["critica"]}
    assert "CODICE_FISCALE" in types or "CIG" in types

    # re-render con modalita' diversa, senza ri-rilevamento
    r2 = client.post("/api/render", json={
        "doc_id": doc_id, "mode": "full_mask",
        "enabled_severities": ["critica", "alta", "media", "bassa"],
    })
    assert r2.status_code == 200
    assert "RSSMRA85T10A562S" not in r2.json()["anonymized_text"]


def test_detection_methods_endpoint(client):
    data = client.get("/api/detection/methods").json()
    keys = {m["key"] for m in data["methods"]}
    # Niente più hybrid: l'utente compone la pipeline per layer (checkbox).
    assert {"rules", "ner", "ner_comuni", "llm", "embedding"} <= keys
    assert "hybrid" not in keys
    assert data["default"] == "rules"
    rules = next(m for m in data["methods"] if m["key"] == "rules")
    assert rules["requires_ml"] is False
    assert rules["technique"] == "deterministic"


def test_detect_with_explicit_method(client):
    """La metodologia 'rules' (deterministica) rileva i codici a formato fisso."""
    text = "CIG 7654321000 e CF RSSMRA85T10A562S nel documento."
    res = client.post(
        "/api/detect", json={"text": text, "min_confidence": 0.7, "method": "rules"}
    )
    assert res.status_code == 200
    assert res.json()["detections"] >= 1


def test_detect_method_changes_doc_id(client):
    """Metodologie diverse producono documenti (e cache) distinti."""
    text = "Email test@example.com nel bando."
    a = client.post("/api/detect", json={"text": text, "method": "rules"}).json()
    b = client.post("/api/detect", json={"text": text, "method": "ner_comuni"}).json()
    assert a["doc_id"] != b["doc_id"]


def test_detect_empty_text(client):
    assert client.post("/api/detect", json={"text": "   "}).status_code == 400


def test_render_unknown_doc(client):
    res = client.post("/api/render", json={"doc_id": "nope", "mode": "placeholder"})
    assert res.status_code == 404


def test_cache_returns_same_doc_id(client):
    text = "Email test@example.com ripetuta."
    a = client.post("/api/detect", json={"text": text}).json()
    b = client.post("/api/detect", json={"text": text}).json()
    assert a["doc_id"] == b["doc_id"]


def test_manual_range_masks_text(client):
    text = "Segreto da nascondere completamente."
    doc_id = client.post("/api/detect", json={"text": text}).json()["doc_id"]
    res = client.post("/api/render", json={
        "doc_id": doc_id, "mode": "full_mask", "manual_ranges": [[0, 7]],
    })
    assert "Segreto" not in res.json()["anonymized_text"]