"""Teste US-002 (PRD 5.6): request_id per cerere + header X-Request-ID."""

from __future__ import annotations

import os
import tempfile

import pytest
from fastapi.testclient import TestClient


@pytest.fixture()
def client(monkeypatch):
    tmp = tempfile.mkdtemp()
    monkeypatch.setenv("AUTOPASS_DB_PATH", os.path.join(tmp, "rid.db"))
    monkeypatch.setenv("AUTOPASS_LOG_DIR", os.path.join(tmp, "logs"))
    from app.config import get_settings
    get_settings.cache_clear()
    from app.main import app
    with TestClient(app) as c:
        yield c
    get_settings.cache_clear()


def test_raspuns_are_header_x_request_id(client):
    r = client.get("/healthz")
    assert r.status_code == 200
    assert r.headers.get("X-Request-ID"), "lipseste header X-Request-ID"


def test_request_id_distinct_pe_cereri(client):
    a = client.get("/healthz").headers.get("X-Request-ID")
    b = client.get("/healthz").headers.get("X-Request-ID")
    assert a and b and a != b


def test_request_id_pastrat_daca_clientul_trimite(client):
    r = client.get("/healthz", headers={"X-Request-ID": "corelare-abc"})
    assert r.headers.get("X-Request-ID") == "corelare-abc"


def test_request_id_propagat_in_log(client):
    """request_id e disponibil in log_event pe durata cererii (contextvar)."""
    from app import observ

    r = client.get("/healthz", headers={"X-Request-ID": "rid-xyz"})
    assert r.headers["X-Request-ID"] == "rid-xyz"
    # In afara cererii, contextvar revine la None (reset in middleware)
    assert observ.request_id_var.get() is None