"""
Unit Tests für question_augmenter.py (Phase 1)

Run with: PYTHONPATH=./backend pytest tests/backend/test_phase1_question_augmenter.py -v
"""
import pytest
from workflow_models import QuestionAugmentation
from question_augmenter import (
    augment_prompt_with_questions,
    merge_question_augmentations,
    format_question_list,
    parse_question_augmentations_from_jsonb
)


def test_format_question_list():
    """Test: Formatierung der Fragenliste"""
    questions = [
        QuestionAugmentation(
            id="q1",
            type="relevanz",
            question="Ist relevant?",
            answer_spectrum=["ja", "nein", "unklar"]
        ),
        QuestionAugmentation(
            id="q2",
            type="prioritaet",
            question="Wie hoch?",
            answer_spectrum=["hoch", "mittel", "niedrig", "unklar"]
        )
    ]

    result = format_question_list(questions)

    assert "Relevanz" in result
    assert "[ja/nein/unklar]" in result
    assert "Prioritaet" in result  # Lowercase wird capitalized
    assert "[hoch/mittel/niedrig/unklar]" in result


def test_augment_prompt_with_questions():
    """Test: Prompt-Erweiterung mit Fragenergänzungen"""
    base_prompt = "Analysiere die Körperdaten."
    questions = [
        QuestionAugmentation(
            id="q1",
            type="relevanz",
            question="Ist relevant?",
            answer_spectrum=["ja", "nein", "unklar"]
        )
    ]

    augmented = augment_prompt_with_questions(base_prompt, questions)

    assert "Analysiere die Körperdaten." in augmented
    assert "## Analyse" in augmented
    assert "## Entscheidungsfragen" in augmented
    assert "Relevanz" in augmented
    assert "[ja/nein/unklar]" in augmented


def test_merge_question_augmentations_node_priority():
    """Test: Knotengebundene Fragen haben Vorrang (Hybridmodell)"""
    node_questions = [
        QuestionAugmentation(id="q1", type="relevanz", question="Q1", answer_spectrum=["ja", "nein"])
    ]
    prompt_questions = [
        QuestionAugmentation(id="q2", type="prioritaet", question="Q2", answer_spectrum=["hoch", "niedrig"])
    ]

    result = merge_question_augmentations(node_questions, prompt_questions)

    # Knotengebundene haben Vorrang
    assert len(result) == 1
    assert result[0].type == "relevanz"


def test_merge_question_augmentations_prompt_fallback():
    """Test: Prompt-Defaults werden verwendet wenn Knoten leer"""
    node_questions = None
    prompt_questions = [
        QuestionAugmentation(id="q2", type="prioritaet", question="Q2", answer_spectrum=["hoch", "niedrig"])
    ]

    result = merge_question_augmentations(node_questions, prompt_questions)

    # Prompt-Defaults werden verwendet
    assert len(result) == 1
    assert result[0].type == "prioritaet"


def test_merge_question_augmentations_empty():
    """Test: Leere Liste wenn weder Knoten noch Prompt Fragen haben"""
    result = merge_question_augmentations(None, None)
    assert result == []


def test_parse_question_augmentations_from_jsonb():
    """Test: Parsing aus JSONB-Format"""
    jsonb_data = [
        {
            "id": "q1",
            "type": "relevanz",
            "question": "Ist relevant?",
            "answer_spectrum": ["ja", "nein", "unklar"]
        },
        {
            "id": "q2",
            "type": "prioritaet",
            "question": "Wie hoch?",
            "answer_spectrum": ["hoch", "mittel", "niedrig"]
        }
    ]

    result = parse_question_augmentations_from_jsonb(jsonb_data)

    assert len(result) == 2
    assert result[0].type == "relevanz"
    assert result[1].type == "prioritaet"


def test_parse_question_augmentations_empty_jsonb():
    """Test: Leere Liste bei None JSONB"""
    result = parse_question_augmentations_from_jsonb(None)
    assert result == []


def test_parse_question_augmentations_invalid_jsonb():
    """Test: ValueError bei ungültigem JSONB"""
    with pytest.raises(ValueError, match="muss ein Array sein"):
        parse_question_augmentations_from_jsonb({"invalid": "format"})


if __name__ == "__main__":
    pytest.main([__file__, "-v"])