"""Tests for FastAPI web service endpoints."""

import pytest
from datetime import datetime
from unittest.mock import Mock, patch
from fastapi.testclient import TestClient

from SPARC.api import app
from SPARC.types import CompanyAnalysisResult, BatchAnalysisResult


@pytest.fixture
def client():
    """Create test client."""
    return TestClient(app)


@pytest.fixture
def mock_analyzer(mocker):
    """Mock the global analyzer."""
    mock = Mock()
    mocker.patch("SPARC.api._analyzer", mock)
    return mock


class TestHealthEndpoint:
    """Test health check endpoint."""

    def test_health_returns_ok(self, client):
        """Test health endpoint returns healthy status."""
        response = client.get("/health")
        assert response.status_code == 200
        data = response.json()
        assert data["status"] == "healthy"
        assert data["version"] == "1.0.0"
        assert "timestamp" in data


class TestAnalyzeCompanyEndpoint:
    """Test single company analysis endpoint."""

    def test_analyze_company_success(self, client, mock_analyzer):
        """Test successful company analysis."""
        mock_result = CompanyAnalysisResult(
            company_name="nvidia",
            analysis="Strong AI patent portfolio",
            patent_count=5,
            success=True,
            timestamp=datetime.now(),
        )
        mock_analyzer._analyze_company_safe.return_value = mock_result

        response = client.get("/analyze/nvidia")

        assert response.status_code == 200
        data = response.json()
        assert data["company_name"] == "nvidia"
        assert data["analysis"] == "Strong AI patent portfolio"
        assert data["patent_count"] == 5
        assert data["success"] is True

    def test_analyze_company_failure(self, client, mock_analyzer):
        """Test company analysis with error."""
        mock_result = CompanyAnalysisResult(
            company_name="unknown",
            analysis="",
            patent_count=0,
            success=False,
            error="No patents found",
            timestamp=datetime.now(),
        )
        mock_analyzer._analyze_company_safe.return_value = mock_result

        response = client.get("/analyze/unknown")

        assert response.status_code == 200
        data = response.json()
        assert data["success"] is False
        assert data["error"] == "No patents found"


class TestBatchAnalysisEndpoint:
    """Test batch analysis endpoint."""

    def test_batch_analysis_success(self, client, mock_analyzer):
        """Test successful batch analysis."""
        results = [
            CompanyAnalysisResult(
                company_name="nvidia",
                analysis="Strong portfolio",
                patent_count=5,
                success=True,
                timestamp=datetime.now(),
            ),
            CompanyAnalysisResult(
                company_name="amd",
                analysis="Growing portfolio",
                patent_count=3,
                success=True,
                timestamp=datetime.now(),
            ),
        ]
        mock_batch = BatchAnalysisResult(
            results=results,
            total_companies=2,
            successful=2,
            failed=0,
            timestamp=datetime.now(),
        )
        mock_analyzer.analyze_companies.return_value = mock_batch

        response = client.post(
            "/analyze/batch",
            json={"companies": ["nvidia", "amd"], "max_workers": 2},
        )

        assert response.status_code == 200
        data = response.json()
        assert data["total_companies"] == 2
        assert data["successful"] == 2
        assert data["failed"] == 0
        assert len(data["results"]) == 2

    def test_batch_analysis_validation(self, client):
        """Test batch analysis request validation."""
        # Empty companies list
        response = client.post("/analyze/batch", json={"companies": []})
        assert response.status_code == 422

        # Too many companies
        response = client.post(
            "/analyze/batch",
            json={"companies": [f"company{i}" for i in range(25)]},
        )
        assert response.status_code == 422

        # Invalid max_workers
        response = client.post(
            "/analyze/batch",
            json={"companies": ["nvidia"], "max_workers": 10},
        )
        assert response.status_code == 422


class TestAsyncBatchEndpoint:
    """Test async batch analysis endpoint."""

    def test_async_batch_creates_job(self, client, mock_analyzer):
        """Test async endpoint creates a job."""
        response = client.post(
            "/analyze/batch/async",
            json={"companies": ["nvidia", "amd"]},
        )

        assert response.status_code == 200
        data = response.json()
        assert "job_id" in data
        assert data["status"] == "pending"
        assert data["total_companies"] == 2
        assert data["progress"] == 0


class TestJobEndpoints:
    """Test job management endpoints."""

    def test_get_job_not_found(self, client):
        """Test getting nonexistent job."""
        response = client.get("/jobs/nonexistent")
        assert response.status_code == 404

    def test_list_jobs(self, client, mocker):
        """Test listing jobs."""
        # Clear existing jobs
        mocker.patch.dict("SPARC.api._jobs", {}, clear=True)

        response = client.get("/jobs")
        assert response.status_code == 200
        assert isinstance(response.json(), list)

    def test_list_jobs_with_filter(self, client, mocker):
        """Test listing jobs with status filter."""
        response = client.get("/jobs?status=completed")
        assert response.status_code == 200