"""Offline tests для Yandex session-cookie admin-эндпоинтов (#3192 MVP).

Покрытие 2 эндпоинтов (db мокается, NO live network/DB), зеркалит паттерн
test_domclick_admin_apis.py / test_admin_cian_session_endpoints.py
(dependency_overrides[get_db] + TestClient):
  - POST /api/v1/admin/scrape/yandex/upload-cookies
  - GET  /api/v1/admin/scrape/yandex/session-status

Про app-уровневый 403/401 для не-админа: намеренно НЕ тестируется — как и у
Cian/DomClick-соседей, admin.py не гейтит auth сам (см. модульный docstring
"Auth: Caddy basic_auth гейтит /trade-in/api/v1/admin/* — application layer
открыт"), TestClient здесь Caddy обходит по конструкции. Это не регрессия
именно этого эндпоинта, а свойство всего роутера.
"""

from __future__ import annotations

import os

os.environ.setdefault("DATABASE_URL", "postgresql+psycopg://test:test@localhost:5432/test")

from datetime import UTC, datetime, timedelta
from unittest.mock import MagicMock, patch

import pytest
from fastapi import FastAPI
from fastapi.testclient import TestClient


@pytest.fixture
def client() -> TestClient:
    from app.api.v1 import admin as admin_module
    from app.core.db import get_db

    app = FastAPI()
    app.include_router(admin_module.router, prefix="/api/v1/admin")

    def fake_db():
        yield MagicMock()

    app.dependency_overrides[get_db] = fake_db
    return TestClient(app)


_UPLOAD_URL = "/api/v1/admin/scrape/yandex/upload-cookies"
_STATUS_URL = "/api/v1/admin/scrape/yandex/session-status"

_SESSION_ID_COOKIE = {"name": "Session_id", "value": "abc", "domain": ".yandex.ru", "path": "/"}
_YANDEXUID_COOKIE = {"name": "yandexuid", "value": "def", "domain": ".yandex.ru", "path": "/"}
_YM_COOKIE = {"name": "_ym_uid", "value": "ghi", "domain": ".yandex.ru", "path": "/"}


# ── POST /scrape/yandex/upload-cookies ────────────────────────────────────────


def test_upload_cookies_503_when_no_encryption_key(client: TestClient) -> None:
    with patch("app.api.v1.admin.settings.cookie_encryption_key", ""):
        resp = client.post(
            _UPLOAD_URL,
            json={"account_label": "acc", "cookies": [_SESSION_ID_COOKIE]},
        )
    assert resp.status_code == 503


def test_upload_cookies_400_when_no_session_id_marker(client: TestClient) -> None:
    """Дамп без Session_id — похоже на анонимную сессию, отказ, ничего не сохраняем."""
    with (
        patch("app.api.v1.admin.settings.cookie_encryption_key", "test-key"),
        patch("app.api.v1.admin.yandex_session_svc.save_session") as mock_save,
    ):
        resp = client.post(
            _UPLOAD_URL,
            json={"account_label": "acc", "cookies": [_YANDEXUID_COOKIE, _YM_COOKIE]},
        )
    assert resp.status_code == 400
    assert "Session_id" in resp.json()["detail"]
    mock_save.assert_not_called()


def test_upload_cookies_400_when_account_label_empty(client: TestClient) -> None:
    with patch("app.api.v1.admin.settings.cookie_encryption_key", "test-key"):
        resp = client.post(
            _UPLOAD_URL,
            json={"account_label": "   ", "cookies": [_SESSION_ID_COOKIE]},
        )
    assert resp.status_code == 400
    assert "account_label" in resp.json()["detail"]


def test_upload_cookies_success_filters_analytics_and_saves(client: TestClient) -> None:
    with (
        patch("app.api.v1.admin.settings.cookie_encryption_key", "test-key"),
        patch("app.api.v1.admin.yandex_session_svc.save_session") as mock_save,
    ):
        resp = client.post(
            _UPLOAD_URL,
            json={
                "account_label": "my-account",
                "cookies": [_SESSION_ID_COOKIE, _YANDEXUID_COOKIE, _YM_COOKIE],
            },
        )
    assert resp.status_code == 200
    body = resp.json()
    assert body == {"ok": True, "accountLabel": "my-account", "cookieCount": 2}

    mock_save.assert_called_once()
    _, kwargs = mock_save.call_args
    assert kwargs["account_label"] == "my-account"
    saved_names = {c["name"] for c in kwargs["cookies"]}
    assert saved_names == {"Session_id", "yandexuid"}  # _ym_uid отфильтрован


# ── GET /scrape/yandex/session-status ─────────────────────────────────────────


def test_session_status_no_key_returns_no_session(client: TestClient) -> None:
    with patch("app.api.v1.admin.settings.cookie_encryption_key", ""):
        resp = client.get(_STATUS_URL)
    assert resp.status_code == 200
    assert resp.json() == {"hasSession": False, "expiresAt": None, "expiresSoon": False}


def test_session_status_no_session_in_db(client: TestClient) -> None:
    with (
        patch("app.api.v1.admin.settings.cookie_encryption_key", "test-key"),
        patch("app.api.v1.admin.yandex_session_svc.load_session", return_value=None),
        patch("app.api.v1.admin.yandex_session_svc.session_expires_at", return_value=None),
    ):
        resp = client.get(_STATUS_URL)
    assert resp.status_code == 200
    assert resp.json() == {"hasSession": False, "expiresAt": None, "expiresSoon": False}


def test_session_status_valid_session_far_from_expiry(client: TestClient) -> None:
    far_future = datetime.now(UTC) + timedelta(days=20)
    with (
        patch("app.api.v1.admin.settings.cookie_encryption_key", "test-key"),
        patch(
            "app.api.v1.admin.yandex_session_svc.load_session",
            return_value=[_SESSION_ID_COOKIE],
        ),
        patch(
            "app.api.v1.admin.yandex_session_svc.session_expires_at",
            return_value=far_future,
        ),
    ):
        resp = client.get(_STATUS_URL)
    assert resp.status_code == 200
    body = resp.json()
    assert body["hasSession"] is True
    assert body["expiresSoon"] is False


def test_session_status_expiring_soon(client: TestClient) -> None:
    soon = datetime.now(UTC) + timedelta(days=2)
    with (
        patch("app.api.v1.admin.settings.cookie_encryption_key", "test-key"),
        patch(
            "app.api.v1.admin.yandex_session_svc.load_session",
            return_value=[_SESSION_ID_COOKIE],
        ),
        patch("app.api.v1.admin.yandex_session_svc.session_expires_at", return_value=soon),
    ):
        resp = client.get(_STATUS_URL)
    assert resp.status_code == 200
    body = resp.json()
    assert body["hasSession"] is True
    assert body["expiresSoon"] is True