""" ChatOrchestrator：AI 回复用户模块的编排层 负责路由（Profile vs Interview）、调用 Specialist Agent；持久化由 feature 层 ConversationHistoryStore 完成。 """ import time from datetime import datetime from typing import TYPE_CHECKING, List, Optional from sqlalchemy.ext.asyncio import AsyncSession from app.agents.chat.agent_turn import AgentChatTurn from app.agents.chat.helpers import get_history_with_window from app.agents.chat.interview_agent import InterviewAgent from app.agents.chat.interview_state_hints import ( build_runtime_interview_state, extract_scene_cues, ) from app.agents.chat.profile_agent import ProfileAgent from app.agents.chat.stage_detection import ( detect_primary_life_stage, life_stage_display_name, ) from app.agents.state_schema import MemoirStateSchema from app.core.agent_logging import agent_summary_enabled, log_agent_detail from app.core.config import settings from app.core.dependencies import get_llm_provider from app.core.logging import get_logger from app.features.conversation.input_normalize import normalize_chat_input_for_agent from app.features.memoir.state_service import ( get_or_create_state, save_interview_state_meta, switch_stage, ) def _llm_for_chat_input_normalize(): try: p = get_llm_provider() return getattr(p, "langchain_llm", None) except Exception: return None if TYPE_CHECKING: from app.features.user.models import User logger = get_logger(__name__) _UNAUTH_TURN = AgentChatTurn( messages=["暂时没法继续对话，请先登录后再试。"], skip_tts=True ) async def _fetch_interview_memory_evidence( db: AsyncSession, user_id: str, user_message: str, ) -> tuple[str, dict | None]: """按本轮用户话检索记忆：格式化短文本 + 可入库 trace（稳定 id）。""" from app.core.dependencies import get_embedding_provider from app.features.memory.evidence_format import format_evidence_chunks_for_prompt from app.features.memory.retrieval_trace import ( chat_memory_retrieval_trace_from_bundle, ) from app.features.memory.service import MemoryService if not settings.chat_memory_retrieval_enabled: logger.debug( "event=chat_memory_retrieval_skip reason=disabled user_id={}", user_id ) return "", None msg = (user_message or "").strip() if not msg: logger.debug( "event=chat_memory_retrieval_skip reason=empty user_id={}", user_id ) return "", None try: emb = get_embedding_provider() ms = MemoryService(db, embedding_provider=emb) top_k = settings.chat_memory_top_k bundle = await ms.retrieve(user_id, msg, top_k=top_k) bd = bundle.model_dump() trace = chat_memory_retrieval_trace_from_bundle( bd, top_k=top_k, query_len=len(msg) ) text = format_evidence_chunks_for_prompt(bd) t = (text or "").strip() if not t: logger.debug( "event=memory_evidence_for_prompt user_id={} formatted_chars=0", user_id, ) return "", trace max_c = settings.chat_memory_evidence_max_chars if len(t) > max_c: t = t[: max_c - 3] + "..." logger.info( "event=memory_evidence_for_prompt user_id={} formatted_chars={}", user_id, len(t), ) return t, trace except Exception as e: try: await db.rollback() except Exception as rollback_error: logger.warning("访谈记忆检索失败后回滚也失败: {}", rollback_error) logger.warning("访谈记忆检索失败: {}", e) return "", None class ChatOrchestrator: """ 聊天编排器：根据用户资料完成度路由到 ProfileAgent 或 InterviewAgent。 不直接写入 Redis/DB；由 WS pipeline / ConversationHistoryStore 落库并同步缓存。 """ def __init__(self): self.profile_agent = ProfileAgent() self.interview_agent = InterviewAgent() async def process_user_message( self, conversation_id: str, user_message: str, user: Optional["User"], conversation, # 用于更新 conversation_stage is_from_voice: bool, voice_session_id: Optional[str], db: AsyncSession, apply_extracted_profile_fn, get_missing_profile_fields_fn, get_filled_profile_fields_fn, user_message_timestamp: Optional[datetime] = None, audio_duration_seconds: Optional[int] = None, ) -> AgentChatTurn: """ 处理用户消息，返回 AI 回复（分段 + 是否跳过 TTS）。 根据 missing_fields 路由到 ProfileAgent 或 InterviewAgent。 """ t0 = time.perf_counter() # --- 资料收集模式 --- if user: missing = get_missing_profile_fields_fn(user) if missing: hw_profile = await get_history_with_window( conversation_id, max_pairs=settings.chat_history_max_pairs, max_chars=settings.chat_history_max_chars, ) profile_turn_total = hw_profile.turn_total if profile_turn_total >= settings.chat_profile_max_turns: logger.info( "event=chat_profile_cap_skip conversation_id={} " "turn_total={} cap={} missing_fields={}", conversation_id, profile_turn_total, settings.chat_profile_max_turns, missing, ) else: try: log_agent_detail( logger, "ChatOrchestrator route=profile conversation_id={} " "missing_fields={} user_msg_len={} profile_turn_total={}", conversation_id, missing, len(user_message or ""), profile_turn_total, ) # Profile 阶段每轮都抽取：短确认语也可能带可推断资料，跳过抽取会导致槽位长期不更新 extracted = ( await self.profile_agent.extract_profile_from_message( user_message, missing, conversation_id=conversation_id ) ) logger.info( "event=chat_profile_extract conversation_id={} " "extracted_keys={} missing_before={}", conversation_id, list(extracted.keys()) if extracted else [], missing, ) if extracted: await apply_extracted_profile_fn(user, extracted, db) remaining = get_missing_profile_fields_fn(user) filled = get_filled_profile_fields_fn(user) interview_stage_hint = "" if not remaining: st = await get_or_create_state(user.id, db) interview_stage_hint = life_stage_display_name( st.current_stage ) responses = await self.profile_agent.generate_profile_followup( conversation_id=conversation_id, user_message=user_message, missing_fields=remaining, filled_fields=filled, nickname=user.nickname or "", interview_stage_hint=interview_stage_hint, ) if agent_summary_enabled(): logger.info( "ChatOrchestrator.process_user_message route=profile " "duration_ms={:.2f} conversation_id={} response_segments={}", (time.perf_counter() - t0) * 1000, conversation_id, len(responses), ) return AgentChatTurn( messages=responses, skip_tts=False, memory_retrieval_trace=None, ) except Exception as e: logger.exception("资料收集处理失败: {}", e) return AgentChatTurn( messages=["不好意思刚才没接住，你再说一遍好吗？"], skip_tts=False, memory_retrieval_trace=None, ) # --- 正式访谈模式 --- user_id = user.id if user else None if not user_id: if agent_summary_enabled(): logger.info( "ChatOrchestrator.process_user_message route=unauth " "duration_ms={:.2f} conversation_id={}", (time.perf_counter() - t0) * 1000, conversation_id, ) return _UNAUTH_TURN log_agent_detail( logger, "ChatOrchestrator route=interview conversation_id={} user_msg_len={}", conversation_id, len(user_message or ""), ) llm_n = None if settings.chat_input_normalize_enabled and ( (settings.chat_input_normalize_mode or "").strip().lower() == "llm" ): llm_n = _llm_for_chat_input_normalize() normalized_user_message = normalize_chat_input_for_agent( user_message or "", llm=llm_n, is_from_voice=is_from_voice, ) state = await get_or_create_state(user_id, db) stage_before = state.current_stage detected = await detect_primary_life_stage( normalized_user_message, state.current_stage, self.interview_agent.llm, ) stage_switched_this_turn = detected != stage_before if stage_switched_this_turn: state = await switch_stage(user_id, detected, db) if conversation and conversation.conversation_stage != state.current_stage: conversation.conversation_stage = state.current_stage await db.commit() from app.agents.chat.background_voice import infer_background_voice from app.agents.chat.prompts_profile import format_user_profile_context user_profile_context = "" background_voice = "default" occupation = "" if user: user_profile_context = format_user_profile_context( birth_year=user.birth_year, birth_place=user.birth_place, grew_up_place=user.grew_up_place, occupation=user.occupation, ) background_voice = infer_background_voice(user.occupation) occupation = user.occupation or "" memory_evidence_text, mem_trace = await _fetch_interview_memory_evidence( db, user_id, normalized_user_message ) scene_cues = extract_scene_cues(normalized_user_message) if scene_cues: cue_block = "\n".join(f"- {c}" for c in scene_cues) scene_hint = f"\n\n[场景氛围提示——可借用这些感官细节自然接话，不要原样抄]\n{cue_block}" memory_evidence_text = (memory_evidence_text or "") + scene_hint profile_birth_year = user.birth_year if user else None profile_era_place = "" if user: profile_era_place = (user.birth_place or user.grew_up_place or "").strip() prompt_state = build_runtime_interview_state( state, user_message=normalized_user_message, active_stage=detected or state.current_stage, birth_year=profile_birth_year, birth_place=(user.birth_place or "").strip() if user else "", grew_up_place=(user.grew_up_place or "").strip() if user else "", occupation=occupation, ) turn = await self.interview_agent.generate_response_with_state( conversation_id=conversation_id, user_message=user_message, memoir_state=prompt_state, user_profile_context=user_profile_context, detected_user_stage=detected, memory_evidence_text=memory_evidence_text, background_voice=background_voice, normalized_user_message=normalized_user_message, occupation=occupation, profile_birth_year=profile_birth_year, profile_era_place=profile_era_place, stage_switched_this_turn=stage_switched_this_turn, ) recent_questions = prompt_state.recent_questions if turn.interview_state_meta and isinstance(turn.interview_state_meta, dict): raw_recent = turn.interview_state_meta.get("recent_questions") if isinstance(raw_recent, list): recent_questions = [ str(x).strip() for x in raw_recent if str(x).strip() ] await save_interview_state_meta( user_id, known_facts=prompt_state.known_facts, persona_threads=prompt_state.persona_threads, recent_questions=recent_questions, db=db, ) if agent_summary_enabled(): logger.info( "ChatOrchestrator.process_user_message route=interview " "duration_ms={:.2f} conversation_id={} stage={} response_segments={} skip_tts={}", (time.perf_counter() - t0) * 1000, conversation_id, state.current_stage, len(turn.messages), turn.skip_tts, ) if mem_trace is not None: return AgentChatTurn( messages=turn.messages, skip_tts=turn.skip_tts, memory_retrieval_trace=mem_trace, interview_state_meta=turn.interview_state_meta, ) return turn async def extract_profile_from_message( self, user_message: str, missing_fields: List[str], conversation_id: Optional[str] = None, ): """委托 ProfileAgent 提取资料""" return await self.profile_agent.extract_profile_from_message( user_message, missing_fields, conversation_id=conversation_id ) async def generate_profile_followup( self, conversation_id: str, user_message: str, missing_fields: List[str], filled_fields: dict, nickname: str = "", is_from_voice: bool = False, voice_session_id: str | None = None, user_message_timestamp: datetime | None = None, audio_duration_seconds: int | None = None, ) -> List[str]: """委托 ProfileAgent 生成资料追问（持久化由调用方负责）。""" return await self.profile_agent.generate_profile_followup( conversation_id=conversation_id, user_message=user_message, missing_fields=missing_fields, filled_fields=filled_fields, nickname=nickname, ) async def generate_profile_greeting( self, conversation_id: str, missing_fields: List[str], nickname: str = "", ) -> List[str]: """委托 ProfileAgent 生成资料收集开场白（持久化由调用方负责）。""" return await self.profile_agent.generate_profile_greeting( conversation_id=conversation_id, missing_fields=missing_fields, nickname=nickname, ) async def generate_response_with_state( self, conversation_id: str, user_message: str, memoir_state: MemoirStateSchema, user_profile_context: str = "", is_from_voice: bool = False, voice_session_id: str | None = None, user_message_timestamp: datetime | None = None, audio_duration_seconds: int | None = None, detected_user_stage: str | None = None, memory_evidence_text: str = "", background_voice: str = "default", normalized_user_message: str | None = None, occupation: str = "", profile_birth_year: int | None = None, profile_era_place: str = "", stage_switched_this_turn: bool = False, ) -> AgentChatTurn: """委托 InterviewAgent 生成访谈回复（持久化由调用方负责）。""" return await self.interview_agent.generate_response_with_state( conversation_id=conversation_id, user_message=user_message, memoir_state=memoir_state, user_profile_context=user_profile_context, detected_user_stage=detected_user_stage, memory_evidence_text=memory_evidence_text, background_voice=background_voice, normalized_user_message=normalized_user_message, occupation=occupation, profile_birth_year=profile_birth_year, profile_era_place=profile_era_place, stage_switched_this_turn=stage_switched_this_turn, ) def detect_user_stage(self, user_message: str) -> str: """委托 InterviewAgent 检测用户阶段""" return self.interview_agent._detect_user_stage(user_message) async def generate_opening_message( self, conversation_id: str, memoir_state: MemoirStateSchema, user_profile_context: str = "", background_voice: str = "default", occupation: str = "", profile_birth_year: Optional[int] = None, profile_era_place: str = "", ) -> List[str]: """ 委托 InterviewAgent 生成访谈开场白（持久化由调用方 ConversationHistoryStore 负责）。 """ return await self.interview_agent.generate_opening_message( conversation_id=conversation_id, memoir_state=memoir_state, user_profile_context=user_profile_context, background_voice=background_voice, occupation=occupation, profile_birth_year=profile_birth_year, profile_era_place=profile_era_place, )