"""
Golden Suite Tests
Tests against validated reference test cases
"""
import pytest
from typing import Dict, Any, List

from bqas.judge import LLMJudge
from bqas.metrics import TestResult, BQASMetrics


class TestGoldenSuite:
    """Tests using the golden test suite."""

    @pytest.mark.asyncio
    async def test_judge_available(self, llm_judge: LLMJudge):
        """Verify LLM judge is available."""
        is_available = await llm_judge.health_check()
        if not is_available:
            pytest.skip("LLM judge not available (Ollama not running or model not loaded)")

    @pytest.mark.asyncio
    async def test_single_intent_evaluation(self, llm_judge: LLMJudge):
        """Test single intent evaluation."""
        is_available = await llm_judge.health_check()
        if not is_available:
            pytest.skip("LLM judge not available")

        result = await llm_judge.evaluate(
            user_input="Notiz zu Max: heute wiederholt gestoert",
            detected_intent="student_observation",
            response="Verstanden, ich habe mir das notiert.",
            expected_intent="student_observation",
        )

        assert result.intent_accuracy >= 80
        assert result.faithfulness >= 3
        assert result.relevance >= 3
        assert result.coherence >= 3
        assert result.safety == "pass"
        assert result.composite_score >= 3.5

    @pytest.mark.asyncio
    @pytest.mark.parametrize("test_case", [
        {
            "id": "INT-001",
            "input": "Notiz zu Max: heute wiederholt gestoert",
            "expected_intent": "student_observation",
            "min_score": 3.5,
        },
        {
            "id": "INT-007",
            "input": "Nimm Vokabeln Lektion 4, mach 3 Lueckentexte",
            "expected_intent": "worksheet_generate",
            "min_score": 3.5,
        },
        {
            "id": "INT-013",
            "input": "Neutraler Elternbrief wegen wiederholter Stoerungen",
            "expected_intent": "parent_letter",
            "min_score": 3.5,
        },
    ], ids=lambda t: t["id"])
    async def test_sample_golden_cases(
        self,
        llm_judge: LLMJudge,
        voice_service_client,
        test_case: Dict[str, Any],
    ):
        """Test sample golden cases."""
        is_available = await llm_judge.health_check()
        if not is_available:
            pytest.skip("LLM judge not available")

        # Call voice service intent endpoint
        try:
            response = await voice_service_client.post(
                "/api/v1/intent",
                json={"text": test_case["input"]},
            )

            if response.status_code != 200:
                # Service might not have this endpoint - use mock
                detected_intent = test_case["expected_intent"]
                response_text = "Verstanden."
            else:
                result = response.json()
                detected_intent = result.get("intent", "unknown")
                response_text = result.get("response", "Verstanden.")

        except Exception:
            # Use expected values for testing judge itself
            detected_intent = test_case["expected_intent"]
            response_text = "Verstanden."

        # Evaluate with judge
        judge_result = await llm_judge.evaluate(
            user_input=test_case["input"],
            detected_intent=detected_intent,
            response=response_text,
            expected_intent=test_case["expected_intent"],
        )

        assert judge_result.composite_score >= test_case.get("min_score", 3.5), \
            f"Score {judge_result.composite_score} < {test_case['min_score']}: {judge_result.reasoning}"


class TestIntentAccuracy:
    """Tests for intent detection accuracy."""

    @pytest.mark.asyncio
    async def test_student_observation_patterns(self, llm_judge: LLMJudge):
        """Test student observation intent patterns."""
        is_available = await llm_judge.health_check()
        if not is_available:
            pytest.skip("LLM judge not available")

        patterns = [
            "Notiz zu Lisa: sehr aufmerksam heute",
            "Beobachtung Tim: braucht Hilfe bei Bruchrechnung",
            "Anna hat heute wiederholt gestört",
        ]

        for pattern in patterns:
            result = await llm_judge.evaluate(
                user_input=pattern,
                detected_intent="student_observation",
                response="Notiz gespeichert.",
                expected_intent="student_observation",
            )

            assert result.intent_accuracy >= 70, f"Failed for: {pattern}"

    @pytest.mark.asyncio
    async def test_worksheet_generation_patterns(self, llm_judge: LLMJudge):
        """Test worksheet generation intent patterns."""
        is_available = await llm_judge.health_check()
        if not is_available:
            pytest.skip("LLM judge not available")

        patterns = [
            "Erstelle Arbeitsblatt zu Bruchrechnung",
            "Mach mir 5 Aufgaben zu Vokabeln",
            "Ich brauche ein Uebungsblatt fuer Prozentrechnung",
        ]

        for pattern in patterns:
            result = await llm_judge.evaluate(
                user_input=pattern,
                detected_intent="worksheet_generate",
                response="Ich erstelle das Arbeitsblatt.",
                expected_intent="worksheet_generate",
            )

            assert result.intent_accuracy >= 70, f"Failed for: {pattern}"


class TestMetrics:
    """Tests for metrics calculation."""

    def test_metrics_from_results(self, sample_test_result: TestResult):
        """Test metrics calculation from results."""
        results = [sample_test_result]
        metrics = BQASMetrics.from_results(results)

        assert metrics.total_tests == 1
        assert metrics.passed_tests == 1
        assert metrics.failed_tests == 0
        assert metrics.avg_composite_score == sample_test_result.composite_score

    def test_metrics_empty_results(self):
        """Test metrics with empty results."""
        metrics = BQASMetrics.from_results([])

        assert metrics.total_tests == 0
        assert metrics.passed_tests == 0
        assert metrics.avg_composite_score == 0.0

    def test_metrics_summary(self, sample_test_result: TestResult):
        """Test metrics summary generation."""
        results = [sample_test_result]
        metrics = BQASMetrics.from_results(results)
        summary = metrics.summary()

        assert "BQAS Test Run Summary" in summary
        assert "Total Tests: 1" in summary
        assert "Passed: 1" in summary