"""Integration tests for generation API endpoints.

Tests key generation endpoints with mocked services.
"""

from datetime import datetime
from unittest.mock import AsyncMock, patch
from uuid import uuid4

import pytest
from fastapi.testclient import TestClient

from notebooklm_agent.api.main import app
from notebooklm_agent.api.models.responses import Artifact, GenerationResponse


@pytest.mark.unit
class TestGenerateAudioEndpoint:
    """Test suite for POST /generate/audio endpoint."""

    def test_generate_audio_returns_202(self):
        """Should return 202 Accepted for audio generation."""
        # Arrange
        client = TestClient(app)
        notebook_id = str(uuid4())
        artifact_id = str(uuid4())

        with patch("notebooklm_agent.api.routes.generation.ArtifactService") as mock_service_class:
            mock_service = AsyncMock()
            mock_response = GenerationResponse(
                artifact_id=artifact_id,
                status="processing",
                message="Audio generation started",
                estimated_time_seconds=600,
            )
            mock_service.generate_audio.return_value = mock_response
            mock_service_class.return_value = mock_service

            # Act
            response = client.post(
                f"/api/v1/notebooks/{notebook_id}/generate/audio",
                json={
                    "instructions": "Make it engaging",
                    "format": "deep-dive",
                    "length": "long",
                    "language": "en",
                },
            )

            # Assert
            assert response.status_code == 202
            data = response.json()
            assert data["success"] is True
            assert data["data"]["status"] == "processing"
            assert data["data"]["estimated_time_seconds"] == 600

    def test_generate_audio_invalid_notebook_returns_400(self):
        """Should return 400 for invalid notebook ID."""
        # Arrange
        client = TestClient(app)

        # Act
        response = client.post(
            "/api/v1/notebooks/invalid-id/generate/audio",
            json={"format": "deep-dive"},
        )

        # Assert
        assert response.status_code in [400, 422]


@pytest.mark.unit
class TestGenerateQuizEndpoint:
    """Test suite for POST /generate/quiz endpoint."""

    def test_generate_quiz_returns_202(self):
        """Should return 202 Accepted for quiz generation."""
        # Arrange
        client = TestClient(app)
        notebook_id = str(uuid4())
        artifact_id = str(uuid4())

        with patch("notebooklm_agent.api.routes.generation.ArtifactService") as mock_service_class:
            mock_service = AsyncMock()
            mock_response = GenerationResponse(
                artifact_id=artifact_id,
                status="processing",
                message="Quiz generation started",
                estimated_time_seconds=600,
            )
            mock_service.generate_quiz.return_value = mock_response
            mock_service_class.return_value = mock_service

            # Act
            response = client.post(
                f"/api/v1/notebooks/{notebook_id}/generate/quiz",
                json={"difficulty": "medium", "quantity": "standard"},
            )

            # Assert
            assert response.status_code == 202
            data = response.json()
            assert data["success"] is True


@pytest.mark.unit
class TestGenerateMindMapEndpoint:
    """Test suite for POST /generate/mind-map endpoint."""

    def test_generate_mind_map_returns_202(self):
        """Should return 202 Accepted for mind map generation."""
        # Arrange
        client = TestClient(app)
        notebook_id = str(uuid4())
        artifact_id = str(uuid4())

        with patch("notebooklm_agent.api.routes.generation.ArtifactService") as mock_service_class:
            mock_service = AsyncMock()
            mock_response = GenerationResponse(
                artifact_id=artifact_id,
                status="completed",
                message="Mind map generated",
                estimated_time_seconds=10,
            )
            mock_service.generate_mind_map.return_value = mock_response
            mock_service_class.return_value = mock_service

            # Act
            response = client.post(f"/api/v1/notebooks/{notebook_id}/generate/mind-map")

            # Assert
            assert response.status_code == 202
            data = response.json()
            assert data["data"]["status"] == "completed"


@pytest.mark.unit
class TestListArtifactsEndpoint:
    """Test suite for GET /artifacts endpoint."""

    def test_list_artifacts_returns_200(self):
        """Should return 200 with list of artifacts."""
        # Arrange
        client = TestClient(app)
        notebook_id = str(uuid4())

        with patch("notebooklm_agent.api.routes.generation.ArtifactService") as mock_service_class:
            mock_service = AsyncMock()
            mock_artifact = Artifact(
                id=uuid4(),
                notebook_id=notebook_id,
                type="audio",
                title="Podcast",
                status="completed",
                created_at=datetime.utcnow(),
                completed_at=datetime.utcnow(),
                download_url="https://example.com/download",
            )
            mock_service.list_artifacts.return_value = [mock_artifact]
            mock_service_class.return_value = mock_service

            # Act
            response = client.get(f"/api/v1/notebooks/{notebook_id}/artifacts")

            # Assert
            assert response.status_code == 200
            data = response.json()
            assert data["success"] is True
            assert len(data["data"]["items"]) == 1
            assert data["data"]["items"][0]["type"] == "audio"

    def test_list_artifacts_empty_returns_empty_list(self):
        """Should return empty list if no artifacts."""
        # Arrange
        client = TestClient(app)
        notebook_id = str(uuid4())

        with patch("notebooklm_agent.api.routes.generation.ArtifactService") as mock_service_class:
            mock_service = AsyncMock()
            mock_service.list_artifacts.return_value = []
            mock_service_class.return_value = mock_service

            # Act
            response = client.get(f"/api/v1/notebooks/{notebook_id}/artifacts")

            # Assert
            assert response.status_code == 200
            data = response.json()
            assert data["success"] is True
            assert data["data"]["items"] == []


@pytest.mark.unit
class TestGetArtifactStatusEndpoint:
    """Test suite for GET /artifacts/{id}/status endpoint."""

    def test_get_artifact_status_returns_200(self):
        """Should return 200 with artifact status."""
        # Arrange
        client = TestClient(app)
        notebook_id = str(uuid4())
        artifact_id = str(uuid4())

        with patch("notebooklm_agent.api.routes.generation.ArtifactService") as mock_service_class:
            mock_service = AsyncMock()
            mock_artifact = Artifact(
                id=artifact_id,
                notebook_id=notebook_id,
                type="video",
                title="Video",
                status="processing",
                created_at=datetime.utcnow(),
                completed_at=None,
                download_url=None,
            )
            mock_service.get_status.return_value = mock_artifact
            mock_service_class.return_value = mock_service

            # Act
            response = client.get(f"/api/v1/notebooks/{notebook_id}/artifacts/{artifact_id}/status")

            # Assert
            assert response.status_code == 200
            data = response.json()
            assert data["success"] is True
            assert data["data"]["status"] == "processing"

    def test_get_artifact_status_not_found_returns_404(self):
        """Should return 404 when artifact not found."""
        # Arrange
        client = TestClient(app)
        notebook_id = str(uuid4())
        artifact_id = str(uuid4())

        with patch("notebooklm_agent.api.routes.generation.ArtifactService") as mock_service_class:
            mock_service = AsyncMock()
            from notebooklm_agent.core.exceptions import NotFoundError

            mock_service.get_status.side_effect = NotFoundError("Artifact", artifact_id)
            mock_service_class.return_value = mock_service

            # Act
            response = client.get(f"/api/v1/notebooks/{notebook_id}/artifacts/{artifact_id}/status")

            # Assert
            assert response.status_code == 404