from app.config.config_loader import get_signal_weights
from app.core.factor_scoring import FactorScorer


def test_factor_scorer_eliminates_zero_weight_factor():
    scorer = FactorScorer(weights={"vp_fly_1h_current": 0})

    delta = scorer.delta("vp_fly_1h_current", 8, evidence="unit")

    assert delta == 0
    assert scorer.summary()["items"][0]["source"] == "review_weight"


def test_factor_scorer_promotes_reviewed_factor():
    scorer = FactorScorer(weights={"vp_fly_1h_current": 7.5})

    delta = scorer.delta("vp_fly_1h_current", 5, evidence="unit")

    assert delta == 7.5
    assert scorer.summary()["items"][0]["multiplier"] == 1.5


def test_signal_weight_alias_keeps_legacy_chinese_keys_available(monkeypatch):
    monkeypatch.setattr("app.config.config_loader.load_rules", lambda: {"signal_weights": {"量价齐飞": 5}})
    monkeypatch.setattr("app.db.altcoin_db.get_signal_weights", lambda: {})

    weights = get_signal_weights()

    assert weights["vp_fly_1h_current"] == 5
    assert weights["量价齐飞"] == 5