"""意图识别节点：Jev 判断这次请求是不是明确的问答"""

from app.clients.decision import get_decision_engine
from app.processor.base import BaseNode
from app.processor.intent_policy import resolve_intent
from app.processor.state import QueryState
from app.processor.summary import request_summary
from app.prompt.intent import build_intent_question
from app.schemas.decision import DecisionRequest


class IntentNode(BaseNode):
    name = "intent_node"

    async def process(self, state: QueryState) -> QueryState:
        updated_state: QueryState = state.copy()
        context = state["input_context"]
        request = DecisionRequest(
            # Jev 只接收 JSON，会话历史作为 history 字段和本次请求放在一起
            state={"history": context.history, **request_summary(context)},
            decisions={"intent": build_intent_question()},
        )
        response = await get_decision_engine().run(request)
        # 完整保留原始决策，便于在追踪中查看各选项的概率
        updated_state["intent_decision"] = response
        updated_state["intent"] = resolve_intent(
            response.results["intent"],
            qa_min_probability=self.config.intent_qa_min_probability,
        )
        return updated_state