import pytest

from okx_codex_trader.strategy import validate_signal


@pytest.mark.parametrize(
    ("field_name", "field_value"),
    [
        ("confidence", True),
        ("leverage", True),
        ("entry_price", True),
        ("take_profit_price", False),
        ("stop_loss_price", True),
    ],
)
def test_validate_signal_rejects_boolean_numeric_fields(field_name, field_value):
    signal = {
        "action": "long",
        "confidence": 0.9,
        "leverage": 2,
        "entry_price": None,
        "take_profit_price": None,
        "stop_loss_price": None,
        "reason": "x",
    }
    signal[field_name] = field_value

    with pytest.raises(ValueError):
        validate_signal(signal)


def test_validate_signal_rejects_leverage_out_of_range():
    with pytest.raises(ValueError):
        validate_signal(
            {
                "action": "long",
                "confidence": 0.9,
                "leverage": 4,
                "entry_price": None,
                "take_profit_price": None,
                "stop_loss_price": None,
                "reason": "x",
            }
        )


def test_validate_signal_rejects_unknown_action():
    with pytest.raises(ValueError):
        validate_signal(
            {
                "action": "hold",
                "confidence": 0.9,
                "leverage": 2,
                "entry_price": None,
                "take_profit_price": None,
                "stop_loss_price": None,
                "reason": "x",
            }
        )


def test_validate_signal_rejects_confidence_out_of_range():
    with pytest.raises(ValueError):
        validate_signal(
            {
                "action": "long",
                "confidence": 1.2,
                "leverage": 2,
                "entry_price": None,
                "take_profit_price": None,
                "stop_loss_price": None,
                "reason": "x",
            }
        )


def test_validate_signal_requires_full_shape():
    with pytest.raises(ValueError):
        validate_signal({"action": "long", "confidence": 0.9, "leverage": 2})


def test_validate_signal_returns_trade_signal():
    signal = validate_signal(
        {
            "action": "short",
            "confidence": 0.75,
            "leverage": 3,
            "entry_price": 101.5,
            "take_profit_price": 98,
            "stop_loss_price": None,
            "reason": "trend",
        }
    )

    assert signal.action == "short"
    assert signal.confidence == 0.75
    assert signal.leverage == 3
    assert signal.entry_price == 101.5
    assert signal.take_profit_price == 98.0
    assert signal.stop_loss_price is None
    assert signal.reason == "trend"