"""
Tests de validation - Fiche #1 : Aliases de compatibilité ScreenState

Auteur: Dom, Alice Kiro - 15 décembre 2024
"""

import pytest
from datetime import datetime
from core.models.screen_state import ScreenState, RawLevel, PerceptionLevel, ContextLevel, WindowContext, EmbeddingRef


def test_screen_state_aliases():
    """Test que les aliases de compatibilité ScreenState fonctionnent"""
    # Créer un ScreenState de test complet
    screen_state = create_test_screen_state()
    
    # Test alias state_id
    assert screen_state.state_id == "test_state_123"
    assert screen_state.state_id == screen_state.screen_state_id
    
    # Test alias raw_level
    assert screen_state.raw_level is screen_state.raw
    
    # Test alias perception_level  
    assert screen_state.perception_level is screen_state.perception
    
    # Test alias screenshot_path
    assert screen_state.screenshot_path == "/test/screenshot.png"
    assert screen_state.screenshot_path == screen_state.raw.screenshot_path


def test_backward_compatibility_with_existing_modules():
    """Test que les modules existants peuvent utiliser les aliases"""
    screen_state = create_test_screen_state()
    
    # Simuler l'utilisation dans node_matcher.py
    result = simulate_node_matcher_usage(screen_state)
    assert result["state_id"] == "test_state_123"
    assert result["screenshot_path"] == "/test/screenshot.png"
    
    # Simuler l'utilisation dans error_handler.py  
    result = simulate_error_handler_usage(screen_state)
    assert result["confidence"] == 0.85
    assert result["detected_text"] == ["Test Button"]


def test_json_serialization_compatibility():
    """Test que la sérialisation JSON fonctionne avec les nouveaux noms"""
    screen_state = create_test_screen_state()
    
    # Sérialiser en JSON
    json_data = screen_state.to_json()
    
    # Vérifier que les nouveaux noms de champs sont utilisés
    assert "screen_state_id" in json_data
    assert "raw" in json_data
    assert "perception" in json_data
    
    # Vérifier que les anciens noms ne sont PAS dans le JSON
    assert "state_id" not in json_data
    assert "raw_level" not in json_data
    assert "perception_level" not in json_data
    
    # Désérialiser et vérifier que les aliases fonctionnent
    restored_state = ScreenState.from_json(json_data)
    assert restored_state.state_id == "test_state_123"
    assert restored_state.raw_level is restored_state.raw
    assert restored_state.perception_level is restored_state.perception


def test_aliases_are_read_only():
    """Test que les aliases sont en lecture seule (pas d'assignation)"""
    screen_state = create_test_screen_state()
    
    # Tenter d'assigner devrait lever une AttributeError
    with pytest.raises(AttributeError):
        screen_state.state_id = "new_id"
    
    with pytest.raises(AttributeError):
        screen_state.raw_level = None
    
    with pytest.raises(AttributeError):
        screen_state.perception_level = None


def create_test_screen_state():
    """Créer un ScreenState de test complet"""
    # Créer les composants
    embedding_ref = EmbeddingRef(
        provider="test_provider",
        vector_id="test_vector",
        dimensions=512
    )
    
    raw_level = RawLevel(
        screenshot_path="/test/screenshot.png",
        capture_method="mss",
        file_size_bytes=1024
    )
    
    perception_level = PerceptionLevel(
        embedding=embedding_ref,
        detected_text=["Test Button"],
        text_detection_method="qwen_vl",
        confidence_avg=0.85
    )
    
    context_level = ContextLevel(
        current_workflow_candidate="test_workflow",
        workflow_step=1,
        user_id="test_user",
        tags=["test"],
        business_variables={"var1": "value1"}
    )
    
    window_context = WindowContext(
        app_name="TestApp",
        window_title="Test Window",
        screen_resolution=[1920, 1080],
        workspace="main"
    )
    
    return ScreenState(
        screen_state_id="test_state_123",
        timestamp=datetime.now(),
        session_id="test_session_456",
        window=window_context,
        raw=raw_level,
        perception=perception_level,
        context=context_level,
        metadata={"test_key": "test_value"},
        ui_elements=[]
    )


def simulate_node_matcher_usage(state):
    """Simuler l'utilisation dans node_matcher.py"""
    # Simule du code legacy qui utilise les anciens noms de champs
    return {
        "state_id": state.state_id,  # Ancien nom
        "screenshot_path": state.screenshot_path,  # Alias pratique
    }


def simulate_error_handler_usage(state):
    """Simuler l'utilisation dans error_handler.py"""
    # Simule l'utilisation dans error_handler
    return {
        "confidence": state.perception_level.confidence_avg,  # Ancien nom
        "detected_text": state.perception_level.detected_text,
    }


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