"""Tests for the service layer (cache-aware fetching)."""

from unittest.mock import patch

import pytest

from finn_eiendom.models import EiendomUnit, FinnAd
from finn_eiendom.service import get_or_fetch_ad, get_or_fetch_eiendom_unit


@pytest.mark.asyncio
async def test_get_or_fetch_ad_uses_cache():
    """Test that get_or_fetch_ad returns cached ad without fetching."""
    mock_ad = FinnAd(finnkode="123", url="http://example.com")

    with (
        patch("finn_eiendom.service.init_db"),
        patch("finn_eiendom.service.get_finn_ad", return_value=mock_ad) as mock_get,
        patch("finn_eiendom.service.fetch_ad_details") as mock_fetch,
    ):
        result = await get_or_fetch_ad("123")

        assert result.finnkode == "123"
        mock_get.assert_called_once()
        mock_fetch.assert_not_called()


@pytest.mark.asyncio
async def test_get_or_fetch_ad_fetches_when_cache_miss():
    """Test that get_or_fetch_ad fetches when cache is empty."""
    mock_ad = FinnAd(finnkode="123", url="http://example.com")

    with (
        patch("finn_eiendom.service.init_db"),
        patch("finn_eiendom.service.get_finn_ad", return_value=None),
        patch("finn_eiendom.service.fetch_ad_details", return_value=mock_ad) as mock_fetch,
        patch("finn_eiendom.service.save_finn_ad") as mock_save,
    ):
        result = await get_or_fetch_ad("123")

        assert result.finnkode == "123"
        mock_fetch.assert_called_once_with("123")
        mock_save.assert_called_once()


@pytest.mark.asyncio
async def test_get_or_fetch_ad_force_refresh():
    """Test that force_refresh=True bypasses cache."""
    mock_ad = FinnAd(finnkode="123", url="http://example.com")

    with (
        patch("finn_eiendom.service.init_db"),
        patch("finn_eiendom.service.get_finn_ad", return_value=mock_ad) as mock_get,
        patch("finn_eiendom.service.fetch_ad_details", return_value=mock_ad) as mock_fetch,
        patch("finn_eiendom.service.save_finn_ad") as mock_save,
    ):
        result = await get_or_fetch_ad("123", force_refresh=True)

        assert result.finnkode == "123"
        mock_get.assert_not_called()
        mock_fetch.assert_called_once_with("123")
        mock_save.assert_called_once()


@pytest.mark.asyncio
async def test_get_or_fetch_eiendom_unit_uses_cache():
    """Test that get_or_fetch_eiendom_unit returns cached unit without fetching."""
    mock_unit = EiendomUnit(unit_code="test-code")

    with (
        patch("finn_eiendom.service.init_db"),
        patch("finn_eiendom.service.get_cached_eiendom_unit", return_value=mock_unit) as mock_get,
        patch("finn_eiendom.service.get_unit") as mock_fetch,
    ):
        result = await get_or_fetch_eiendom_unit("test-code")

        assert result.unit_code == "test-code"
        mock_get.assert_called_once()
        mock_fetch.assert_not_called()


@pytest.mark.asyncio
async def test_get_or_fetch_eiendom_unit_fetches_when_cache_miss():
    """Test that get_or_fetch_eiendom_unit fetches when cache is empty."""
    mock_unit = EiendomUnit(unit_code="test-code")

    with (
        patch("finn_eiendom.service.init_db"),
        patch("finn_eiendom.service.get_cached_eiendom_unit", return_value=None),
        patch("finn_eiendom.service.get_unit", return_value=mock_unit) as mock_fetch,
        patch("finn_eiendom.service.save_eiendom_unit") as mock_save,
    ):
        result = await get_or_fetch_eiendom_unit("test-code")

        assert result.unit_code == "test-code"
        mock_fetch.assert_called_once_with("test-code")
        mock_save.assert_called_once()