"""Unit tests for AI analyzer"""
import pytest
from unittest.mock import Mock, patch, MagicMock
from app.services.ai_analyzer import AIAnalyzer, ClaudeAnalyzer
from app.models.feedback import AnalysisResult


@pytest.mark.unit
def test_ai_analyzer_interface():
    """T065: Unit test for AIAnalyzer interface

    Verify that AIAnalyzer is an abstract base class
    that cannot be instantiated directly
    """
    with pytest.raises(TypeError):
        # Should not be able to instantiate abstract base class
        AIAnalyzer()


@pytest.mark.unit
def test_claude_analyzer_categorization(app):
    """T066: Unit test for ClaudeAnalyzer categorization

    Verify that ClaudeAnalyzer correctly extracts category from AI response
    """
    with app.app_context():
        # Mock the Anthropic client to avoid initialization issues
        with patch('app.services.ai_analyzer.anthropic.Anthropic'):
            analyzer = ClaudeAnalyzer(api_key='test-key')

            # Mock AI response with category
            mock_response = Mock()
            mock_response.content = [Mock(text="""
# Feedback Analysis

**Category**: bug

**Original Language**: en

**Summary**: User reports login issue

**Translation**: (same as original)
""")]

            with patch.object(analyzer, '_call_claude_api', return_value=mock_response):
                result = analyzer.analyze_feedback(
                    feedback_text="Login button doesn't work",
                    target_language='en',
                    product_id='test-product'
                )

                assert result.category == 'bug'


@pytest.mark.unit
def test_claude_analyzer_translation(app):
    """T067: Unit test for ClaudeAnalyzer translation

    Verify that ClaudeAnalyzer correctly translates feedback
    """
    with app.app_context():
        # Mock the Anthropic client to avoid initialization issues
        with patch('app.services.ai_analyzer.anthropic.Anthropic'):
            analyzer = ClaudeAnalyzer(api_key='test-key')

            # Mock AI response with translation
            mock_response = Mock()
            mock_response.content = [Mock(text="""
# Feedback Analysis

**Category**: feature_request

**Original Language**: de

**Summary**: User wants dark mode

**Translation**: I would like to have a dark mode for the application
""")]

            with patch.object(analyzer, '_call_claude_api', return_value=mock_response):
                result = analyzer.analyze_feedback(
                    feedback_text="Ich hätte gerne einen Dark Mode für die Anwendung",
                    target_language='en',
                    product_id='test-product'
                )

                assert result.translation == 'I would like to have a dark mode for the application'
                assert result.original_language == 'de'


@pytest.mark.unit
def test_claude_analyzer_summary_generation(app):
    """T068: Unit test for ClaudeAnalyzer summary generation

    Verify that ClaudeAnalyzer generates concise summaries
    """
    with app.app_context():
        # Mock the Anthropic client to avoid initialization issues
        with patch('app.services.ai_analyzer.anthropic.Anthropic'):
            analyzer = ClaudeAnalyzer(api_key='test-key')

            # Mock AI response with summary
            mock_response = Mock()
            mock_response.content = [Mock(text="""
# Feedback Analysis

**Category**: complaint

**Original Language**: en

**Summary**: User experienced slow page load times during peak hours

**Translation**: (same as original)
""")]

            with patch.object(analyzer, '_call_claude_api', return_value=mock_response):
                long_feedback = """
                I've been using your service for three months now, and I have to say
                I'm quite disappointed with the performance during peak hours. Yesterday
                evening around 8 PM, I tried to load the dashboard multiple times and
                each time it took over 30 seconds. This is unacceptable for a paid service.
                """

                result = analyzer.analyze_feedback(
                    feedback_text=long_feedback,
                    target_language='en',
                    product_id='test-product'
                )

                assert result.summary == 'User experienced slow page load times during peak hours'
                assert len(result.summary) < len(long_feedback)


@pytest.mark.unit
def test_analysis_error_handling(app):
    """T069: Unit test for analysis error handling

    Verify that ClaudeAnalyzer handles API errors gracefully
    """
    with app.app_context():
        # Mock the Anthropic client to avoid initialization issues
        with patch('app.services.ai_analyzer.anthropic.Anthropic'):
            analyzer = ClaudeAnalyzer(api_key='test-key')

            # Test API timeout
            with patch.object(analyzer, '_call_claude_api', side_effect=TimeoutError("API timeout")):
                with pytest.raises(Exception) as exc_info:
                    analyzer.analyze_feedback(
                        feedback_text="Test feedback",
                        target_language='en',
                        product_id='test-product'
                    )
                assert "timeout" in str(exc_info.value).lower() or "API" in str(exc_info.value)

            # Test API error
            with patch.object(analyzer, '_call_claude_api', side_effect=Exception("API Error")):
                with pytest.raises(Exception):
                    analyzer.analyze_feedback(
                        feedback_text="Test feedback",
                        target_language='en',
                        product_id='test-product'
                    )