LightRAG/lightrag/api/routers/history_routes.py

75 lines
2.4 KiB
Python

from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session
from typing import List, Optional
from uuid import UUID
import sys
import os
# Ensure service module is in path (similar to query_routes.py)
project_root = os.path.abspath(os.path.join(os.path.dirname(__file__), "../../../"))
service_dir = os.path.join(project_root, "service")
if service_dir not in sys.path:
sys.path.append(service_dir)
try:
from app.core.database import get_db
from app.services.history_manager import HistoryManager
from app.models.schemas import SessionResponse, SessionCreate, ChatMessageResponse
from app.models.models import User
except ImportError:
# Fallback if service not found (shouldn't happen if setup is correct)
get_db = None
HistoryManager = None
SessionResponse = None
SessionCreate = None
ChatMessageResponse = None
User = None
router = APIRouter()
def check_dependencies():
if not HistoryManager:
raise HTTPException(status_code=503, detail="History service not available")
@router.get("/sessions", response_model=List[SessionResponse], tags=["History"])
def list_sessions(
skip: int = 0,
limit: int = 20,
db: Session = Depends(get_db)
):
check_dependencies()
manager = HistoryManager(db)
# For now, get default user or create one
user = db.query(User).filter(User.username == "default_user").first()
if not user:
user = User(username="default_user", email="default@example.com")
db.add(user)
db.commit()
db.refresh(user)
sessions = manager.list_sessions(user_id=user.id, skip=skip, limit=limit)
return sessions
@router.post("/sessions", response_model=SessionResponse, tags=["History"])
def create_session(
session_in: SessionCreate,
db: Session = Depends(get_db)
):
check_dependencies()
manager = HistoryManager(db)
user = db.query(User).filter(User.username == "default_user").first()
if not user:
user = User(username="default_user", email="default@example.com")
db.add(user)
db.commit()
return manager.create_session(user_id=user.id, title=session_in.title)
@router.get("/sessions/{session_id}/history", response_model=List[ChatMessageResponse], tags=["History"])
def get_session_history(
session_id: str,
db: Session = Depends(get_db)
):
check_dependencies()
manager = HistoryManager(db)
return manager.get_session_history(session_id)