"""意图门控：只回答"是不是明确的问答"，其余都交给 screen agent，由它决定执行、追问还是说明做不了"""

from app.schemas.decision import ChoiceResult, Route


def resolve_intent(decision: ChoiceResult, *, qa_min_probability: float) -> Route:
    """按选中项自身的概率门控，confidence 只表示分布集中度，不作为判据"""
    # 缺少该选项的概率时退回 confidence，避免因协议缺字段而误判
    probability = decision.probabilities.get(decision.choice, decision.confidence)
    if decision.choice == "qa" and probability >= qa_min_probability:
        return "qa"
    return "screen"