130 lines
4.1 KiB
Python
130 lines
4.1 KiB
Python
"""
|
||
回忆录状态服务：get_or_create_state、update_slot、mark_stage_complete 等。
|
||
供 memoir service、conversation ws 使用；Celery 任务内使用同步版本（见 tasks/memoir_tasks）。
|
||
"""
|
||
|
||
import uuid
|
||
from typing import Dict, List
|
||
|
||
from sqlalchemy import select
|
||
from sqlalchemy.ext.asyncio import AsyncSession
|
||
|
||
from app.agents.state_schema import MemoirStateSchema, SlotData, default_state
|
||
from app.features.memoir.models import MemoirState as MemoirStateModel
|
||
|
||
|
||
def _coerce_state(model: MemoirStateModel) -> MemoirStateSchema:
|
||
return MemoirStateSchema.model_validate(
|
||
{
|
||
"stage_order": model.stage_order or default_state().stage_order,
|
||
"current_stage": model.current_stage,
|
||
"covered_stages": model.covered_stages or [],
|
||
"slots": model.slots
|
||
if isinstance(model.slots, dict)
|
||
else default_state().slots,
|
||
}
|
||
)
|
||
|
||
|
||
async def get_or_create_state(user_id: str, db: AsyncSession) -> MemoirStateSchema:
|
||
stmt = select(MemoirStateModel).where(MemoirStateModel.user_id == user_id)
|
||
result = await db.execute(stmt)
|
||
state = result.scalar_one_or_none()
|
||
if state:
|
||
return _coerce_state(state)
|
||
|
||
default = default_state()
|
||
state = MemoirStateModel(
|
||
id=str(uuid.uuid4()),
|
||
user_id=user_id,
|
||
stage_order=default.stage_order,
|
||
current_stage=default.current_stage,
|
||
covered_stages=default.covered_stages,
|
||
slots={
|
||
k: {sk: sv.model_dump() for sk, sv in v.items()}
|
||
for k, v in default.slots.items()
|
||
},
|
||
)
|
||
db.add(state)
|
||
await db.commit()
|
||
await db.refresh(state)
|
||
return _coerce_state(state)
|
||
|
||
|
||
async def update_slot(
|
||
user_id: str,
|
||
stage: str,
|
||
slot_name: str,
|
||
snippet: str,
|
||
segment_ids: List[str],
|
||
db: AsyncSession,
|
||
) -> MemoirStateSchema:
|
||
stmt = select(MemoirStateModel).where(MemoirStateModel.user_id == user_id)
|
||
result = await db.execute(stmt)
|
||
state = result.scalar_one_or_none()
|
||
if not state:
|
||
await get_or_create_state(user_id, db)
|
||
result = await db.execute(stmt)
|
||
state = result.scalar_one()
|
||
|
||
slots: Dict[str, Dict] = state.slots or {}
|
||
stage_slots = slots.get(stage, {})
|
||
existing = stage_slots.get(slot_name, {})
|
||
|
||
merged_segment_ids = list({*(existing.get("segment_ids") or []), *segment_ids})
|
||
stage_slots[slot_name] = SlotData(
|
||
snippet=snippet, segment_ids=merged_segment_ids
|
||
).model_dump()
|
||
slots[stage] = stage_slots
|
||
state.slots = slots
|
||
state.current_stage = state.current_stage or stage
|
||
await db.commit()
|
||
await db.refresh(state)
|
||
return _coerce_state(state)
|
||
|
||
|
||
async def mark_stage_complete(
|
||
user_id: str, stage: str, db: AsyncSession
|
||
) -> MemoirStateSchema:
|
||
stmt = select(MemoirStateModel).where(MemoirStateModel.user_id == user_id)
|
||
result = await db.execute(stmt)
|
||
state = result.scalar_one_or_none()
|
||
if not state:
|
||
return await get_or_create_state(user_id, db)
|
||
|
||
covered = state.covered_stages or []
|
||
if stage not in covered:
|
||
covered.append(stage)
|
||
state.covered_stages = covered
|
||
|
||
stage_order = state.stage_order or default_state().stage_order
|
||
if state.current_stage == stage:
|
||
try:
|
||
idx = stage_order.index(stage)
|
||
state.current_stage = stage_order[min(idx + 1, len(stage_order) - 1)]
|
||
except ValueError:
|
||
state.current_stage = default_state().current_stage
|
||
await db.commit()
|
||
await db.refresh(state)
|
||
return _coerce_state(state)
|
||
|
||
|
||
async def get_empty_slots(user_id: str, db: AsyncSession) -> List[str]:
|
||
state = await get_or_create_state(user_id, db)
|
||
return state.empty_slots_for_current_stage()
|
||
|
||
|
||
async def switch_stage(
|
||
user_id: str, new_stage: str, db: AsyncSession
|
||
) -> MemoirStateSchema:
|
||
stmt = select(MemoirStateModel).where(MemoirStateModel.user_id == user_id)
|
||
result = await db.execute(stmt)
|
||
state = result.scalar_one_or_none()
|
||
if not state:
|
||
return await get_or_create_state(user_id, db)
|
||
|
||
state.current_stage = new_stage
|
||
await db.commit()
|
||
await db.refresh(state)
|
||
return _coerce_state(state)
|