from app.services.handoff_evaluator import ALL_MAIL_LABEL, ALL_TYPES_ID, evaluate_handoff


def test_handoff_requires_all_selected_filters():
    email = {
        "subject": "Payment approval required",
        "snippet": "Please approve this invoice payment today.",
        "body_text": "We need your approval for payment of $4,500.",
    }
    result = evaluate_handoff(
        email=email,
        labels=["Important", "Finance"],
        email_types=["transactional"],
        instructions="Forward when approval is required.",
    )
    assert result["would_handoff"] is True
    assert result["label_matched"] is True
    assert result["type_matched"] is True


def test_handoff_does_not_match_unrelated_instruction():
    email = {
        "subject": "Team lunch",
        "snippet": "Where should we eat tomorrow?",
        "body_text": "Let me know your preference.",
    }
    result = evaluate_handoff(
        email=email,
        labels=[],
        email_types=[],
        instructions="Forward when a refund requires approval.",
    )
    assert result["would_handoff"] is False


def test_handoff_all_mail_matches_generic_inbound():
    email = {
        "subject": "test handoff",
        "snippet": "did you receive this?",
        "body_text": "did you receive this?",
    }
    result = evaluate_handoff(
        email=email,
        labels=[ALL_MAIL_LABEL],
        email_types=[ALL_TYPES_ID],
        instructions="",
    )
    assert result["would_handoff"] is True
    assert result["label_matched"] is True
    assert result["type_matched"] is True


def test_handoff_selected_categories_do_not_match_generic_email():
    email = {
        "subject": "hi",
        "snippet": "check the inbox please",
        "body_text": "check the inbox please",
    }
    result = evaluate_handoff(
        email=email,
        labels=["Important", "Finance", "Clients"],
        email_types=["transactional"],
        instructions="",
    )
    assert result["would_handoff"] is False