"""Tests for TheTVDB client."""

from unittest.mock import Mock, patch

import pytest

from tvh2jellyfin.tvdb import EpisodeInfo, TVDBClient, TVDBConfig


class TestEpisodeInfo:
    """Tests for EpisodeInfo dataclass."""

    def test_formatted_episode_single_digit(self):
        """Test SxxExx formatting with single digit numbers."""
        info = EpisodeInfo(
            series_id=123,
            series_name="Test Show",
            season=1,
            episode=5,
            episode_name="Pilot",
            air_date="2024-01-15",
        )
        assert info.formatted_episode == "S01E05"

    def test_formatted_episode_double_digit(self):
        """Test SxxExx formatting with double digit numbers."""
        info = EpisodeInfo(
            series_id=123,
            series_name="Test Show",
            season=12,
            episode=25,
            episode_name="Episode",
            air_date="2024-01-15",
        )
        assert info.formatted_episode == "S12E25"

    def test_formatted_episode_large_numbers(self):
        """Test formatting with season/episode > 99."""
        info = EpisodeInfo(
            series_id=123,
            series_name="Long Running Show",
            season=67,
            episode=125,
            episode_name="Episode",
            air_date="2024-01-15",
        )
        assert info.formatted_episode == "S67E125"


class TestTVDBClient:
    """Tests for TVDB API client."""

    @pytest.fixture
    def config(self):
        return TVDBConfig(
            api_key="test_key",
            pin="",
            cache_ttl=3600,
            show_mapping_file=None,
            enabled=True,
        )

    @pytest.fixture
    def client(self, config):
        with patch.object(TVDBClient, "_authenticate"):
            return TVDBClient(config)

    def test_cache_valid(self, client):
        """Test cache validity check."""
        import time

        # Recent timestamp should be valid
        assert client._is_cache_valid(time.time() - 100)

        # Old timestamp should be invalid
        assert not client._is_cache_valid(time.time() - 7200)

    @patch("requests.Session.post")
    def test_authenticate(self, mock_post, config):
        """Test authentication flow."""
        mock_post.return_value.json.return_value = {"data": {"token": "test_token"}}
        mock_post.return_value.raise_for_status = Mock()

        client = TVDBClient(config)
        client._authenticate()

        assert client._token == "test_token"
        mock_post.assert_called_once()

    @patch("requests.Session.get")
    @patch("requests.Session.post")
    def test_search_series_success(self, mock_post, mock_get, config):
        """Test successful series search."""
        mock_post.return_value.json.return_value = {"data": {"token": "test_token"}}
        mock_post.return_value.raise_for_status = Mock()

        mock_get.return_value.json.return_value = {
            "data": [{"tvdb_id": 456, "name": "The Test Show"}]
        }
        mock_get.return_value.raise_for_status = Mock()

        client = TVDBClient(config)
        result = client.search_series("Test Show")

        assert result is not None
        assert result[0] == 456
        assert result[1] == "The Test Show"

    @patch("requests.Session.get")
    @patch("requests.Session.post")
    def test_search_series_not_found(self, mock_post, mock_get, config):
        """Test series search with no results."""
        mock_post.return_value.json.return_value = {"data": {"token": "test_token"}}
        mock_post.return_value.raise_for_status = Mock()

        mock_get.return_value.json.return_value = {"data": []}
        mock_get.return_value.raise_for_status = Mock()

        client = TVDBClient(config)
        result = client.search_series("Nonexistent Show")

        assert result is None

    @patch("tvh2jellyfin.tvdb.requests.Session")
    def test_lookup_episode_success(self, mock_session_class, config):
        """Test successful episode lookup."""
        from datetime import datetime

        mock_session = Mock()
        mock_session_class.return_value = mock_session

        # Use a timestamp and derive the expected air date from it
        timestamp = 1767744000
        expected_air_date = datetime.fromtimestamp(timestamp).strftime("%Y-%m-%d")

        # Mock authentication
        mock_session.post.return_value.json.return_value = {"data": {"token": "test_token"}}
        mock_session.post.return_value.raise_for_status = Mock()

        # Mock search and episode responses
        mock_session.get.return_value.raise_for_status = Mock()
        mock_session.get.return_value.json.side_effect = [
            {"data": [{"tvdb_id": 456, "name": "Coronation Street"}]},
            {
                "data": {
                    "name": "Coronation Street",
                    "episodes": [
                        {
                            "seasonNumber": 67,
                            "number": 4,
                            "name": "Episode 4",
                            "aired": expected_air_date,
                        }
                    ],
                },
                "links": {},
            },
        ]

        client = TVDBClient(config)
        result = client.lookup_episode("Coronation Street", timestamp)

        assert result is not None
        assert result.season == 67
        assert result.episode == 4
        assert result.formatted_episode == "S67E04"

    def test_show_mapping_file(self, tmp_path, config):
        """Test show name mapping from file."""
        mapping_file = tmp_path / "mapping.json"
        mapping_file.write_text('{"Doctor Who": "Doctor Who (2005)"}')

        config.show_mapping_file = str(mapping_file)

        with patch.object(TVDBClient, "_authenticate"):
            client = TVDBClient(config)

        assert client._show_mapping.get("Doctor Who") == "Doctor Who (2005)"

    def test_caching_prevents_duplicate_calls(self, client):
        """Test that cache prevents duplicate API calls."""
        import time

        # Manually populate cache
        client._series_cache["test show"] = (123, "Test Show", time.time())

        # Search should use cache, not make API call
        result = client.search_series("test show")

        assert result == (123, "Test Show")