a3f61fcc0f
- DB: segments 用户输入文本（Alembic 0002） - Chat: 阶段检测/阶段提示/回复限制，编排与访谈/画像 prompts 调整 - Memoir: 忠实度检查 agent，叙事与分类等链路更新 - Core: agent 日志、Alembic 启动、LangChain/日志/配置等 - Story: time_hints；Memory 检索与相关测试 - Expo: 助手头像、会话页与消息拆分、实时会话与文案/i18n - Docs/scripts/tests: 迁移脚本、LLM JSON/记忆检索文档、新增单测
130 lines
4.1 KiB
Python
130 lines
4.1 KiB
Python
"""
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回忆录状态服务：get_or_create_state、update_slot、mark_stage_complete 等。
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供 memoir service、conversation ws 使用；Celery 任务内使用同步版本（见 tasks/memoir_tasks）。
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"""
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import uuid
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from typing import Dict, List
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.agents.state_schema import MemoirStateSchema, SlotData, default_state
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from app.features.memoir.models import MemoirState as MemoirStateModel
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def _coerce_state(model: MemoirStateModel) -> MemoirStateSchema:
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return MemoirStateSchema.model_validate(
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{
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"stage_order": model.stage_order or default_state().stage_order,
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"current_stage": model.current_stage,
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"covered_stages": model.covered_stages or [],
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"slots": model.slots
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if isinstance(model.slots, dict)
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else default_state().slots,
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}
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)
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async def get_or_create_state(user_id: str, db: AsyncSession) -> MemoirStateSchema:
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stmt = select(MemoirStateModel).where(MemoirStateModel.user_id == user_id)
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result = await db.execute(stmt)
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state = result.scalar_one_or_none()
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if state:
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return _coerce_state(state)
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default = default_state()
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state = MemoirStateModel(
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id=str(uuid.uuid4()),
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user_id=user_id,
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stage_order=default.stage_order,
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current_stage=default.current_stage,
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covered_stages=default.covered_stages,
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slots={
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k: {sk: sv.model_dump() for sk, sv in v.items()}
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for k, v in default.slots.items()
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},
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)
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db.add(state)
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await db.commit()
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await db.refresh(state)
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return _coerce_state(state)
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async def update_slot(
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user_id: str,
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stage: str,
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slot_name: str,
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snippet: str,
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segment_ids: List[str],
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db: AsyncSession,
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) -> MemoirStateSchema:
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stmt = select(MemoirStateModel).where(MemoirStateModel.user_id == user_id)
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result = await db.execute(stmt)
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state = result.scalar_one_or_none()
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if not state:
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await get_or_create_state(user_id, db)
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result = await db.execute(stmt)
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state = result.scalar_one()
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slots: Dict[str, Dict] = state.slots or {}
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stage_slots = slots.get(stage, {})
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existing = stage_slots.get(slot_name, {})
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merged_segment_ids = list({*(existing.get("segment_ids") or []), *segment_ids})
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stage_slots[slot_name] = SlotData(
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snippet=snippet, segment_ids=merged_segment_ids
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).model_dump()
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slots[stage] = stage_slots
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state.slots = slots
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state.current_stage = stage
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await db.commit()
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await db.refresh(state)
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return _coerce_state(state)
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async def mark_stage_complete(
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user_id: str, stage: str, db: AsyncSession
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) -> MemoirStateSchema:
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stmt = select(MemoirStateModel).where(MemoirStateModel.user_id == user_id)
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result = await db.execute(stmt)
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state = result.scalar_one_or_none()
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if not state:
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return await get_or_create_state(user_id, db)
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covered = state.covered_stages or []
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if stage not in covered:
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covered.append(stage)
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state.covered_stages = covered
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stage_order = state.stage_order or default_state().stage_order
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if state.current_stage == stage:
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try:
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idx = stage_order.index(stage)
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state.current_stage = stage_order[min(idx + 1, len(stage_order) - 1)]
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except ValueError:
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state.current_stage = default_state().current_stage
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await db.commit()
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await db.refresh(state)
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return _coerce_state(state)
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async def get_empty_slots(user_id: str, db: AsyncSession) -> List[str]:
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state = await get_or_create_state(user_id, db)
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return state.empty_slots_for_current_stage()
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async def switch_stage(
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user_id: str, new_stage: str, db: AsyncSession
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) -> MemoirStateSchema:
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stmt = select(MemoirStateModel).where(MemoirStateModel.user_id == user_id)
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result = await db.execute(stmt)
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state = result.scalar_one_or_none()
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if not state:
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return await get_or_create_state(user_id, db)
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state.current_stage = new_stage
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await db.commit()
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await db.refresh(state)
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return _coerce_state(state)
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