Files
xiaobaifupan/next/backend/features/mentor/routes.py
T

105 lines
3.2 KiB
Python

from __future__ import annotations
import json
from collections.abc import Iterator
from typing import Annotated
from fastapi import APIRouter, Query, Request
from fastapi.responses import StreamingResponse
from backend.data.gateway import MarketDataUnavailable
from backend.features.accounts.auth import (
AuthenticatedPrincipal,
SmartAccessPrincipal,
SmartWritePrincipal,
)
from backend.features.mentor.schemas import (
CountResponse,
MentorChatInput,
MentorPreferencesInput,
)
from backend.features.mentor.service import MentorError
from backend.http.errors import AppError
from backend.llm.gateway import LLMGatewayError
router = APIRouter(prefix="/mentors", tags=["mentors"])
@router.get("/setup", response_model=dict)
def setup(
request: Request,
principal: AuthenticatedPrincipal,
trade_date: Annotated[str, Query(alias="date", min_length=10, max_length=10)],
) -> dict:
return _call(request, "setup", principal, trade_date)
@router.put("/preferences", response_model=dict)
def save_preferences(
payload: MentorPreferencesInput,
request: Request,
principal: SmartWritePrincipal,
) -> dict:
return _call(request, "save_preferences", principal, payload.order, payload.pinned)
@router.get("/messages", response_model=list[dict])
def messages(
request: Request,
principal: SmartAccessPrincipal,
mentor_id: Annotated[str, Query(min_length=1, max_length=100)],
trade_date: Annotated[str, Query(alias="date", min_length=10, max_length=10)],
) -> list[dict]:
return _call(request, "messages", principal, mentor_id, trade_date)
@router.delete("/messages", response_model=CountResponse)
def clear_messages(
request: Request,
principal: SmartWritePrincipal,
mentor_id: Annotated[str, Query(min_length=1, max_length=100)],
trade_date: Annotated[str, Query(alias="date", min_length=10, max_length=10)],
) -> CountResponse:
deleted = _call(request, "clear", principal, mentor_id, trade_date)
return CountResponse(deleted=deleted)
@router.post("/chat")
def chat(
payload: MentorChatInput,
request: Request,
principal: SmartWritePrincipal,
) -> StreamingResponse:
prepared = _call(
request,
"prepare_chat",
principal,
payload.mentor_id,
payload.trade_date,
payload.question,
)
def body() -> Iterator[bytes]:
for event in request.app.state.container.mentor.stream_chat(prepared):
yield (json.dumps(event, ensure_ascii=False, separators=(",", ":")) + "\n").encode(
"utf-8"
)
return StreamingResponse(
body(),
media_type="application/x-ndjson",
headers={"Cache-Control": "no-cache, no-transform", "X-Accel-Buffering": "no"},
)
def _call(request: Request, method: str, *args):
try:
return getattr(request.app.state.container.mentor, method)(*args)
except MentorError as exc:
raise AppError("mentor_unavailable", str(exc), 409) from exc
except MarketDataUnavailable as exc:
raise AppError("market_data_unavailable", str(exc), 503) from exc
except LLMGatewayError as exc:
status = 403 if exc.code in {"membership_required", "quota_exhausted"} else 503
raise AppError(exc.code, str(exc), status) from exc