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73641c0 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | from fastapi import APIRouter, HTTPException, Request, Response
from typing import Optional, Dict, Any, List
from uuid import uuid4
import logging
from api.models.pydantic_models import Session
from api.utils.user import get_or_create_user_id
from api.utils.session import user_sessions, initialize_session
router = APIRouter()
logger = logging.getLogger(__name__)
@router.post("/sessions", response_model=Session)
async def create_session(
request: Request,
response: Response,
user_id: Optional[str] = None,
collection_name: Optional[str] = None
):
"""
Create a new chat session
Args:
request: FastAPI request object
response: FastAPI response object
user_id: User ID (optional)
collection_name: Vector store collection name (optional)
Returns:
Session: The created session
"""
# Get or create user ID if not provided
if not user_id:
user_id = get_or_create_user_id(request, response)
# Generate a new session ID
session_id = str(uuid4())
# Initialize the session
try:
initialize_session(session_id, user_id, collection_name)
return Session(
id=session_id,
user_id=user_id,
collection_name=collection_name or "default"
)
except Exception as e:
logger.error(f"Error creating session: {str(e)}")
raise HTTPException(status_code=500, detail=f"Error creating session: {str(e)}")
@router.get("/sessions", response_model=List[Session])
async def get_sessions(
request: Request,
response: Response,
user_id: Optional[str] = None
):
"""
Get all sessions for a user
Args:
request: FastAPI request object
response: FastAPI response object
user_id: User ID (optional)
Returns:
List[Session]: List of sessions
"""
# Get or create user ID if not provided
if not user_id:
user_id = get_or_create_user_id(request, response)
# Filter sessions by user ID
user_session_list = []
for session_id, session_data in user_sessions.items():
if session_data.get("user_id") == user_id:
user_session_list.append(Session(
id=session_id,
user_id=user_id,
collection_name=session_data.get("collection_name", "default")
))
return user_session_list
@router.delete("/sessions/{session_id}")
async def delete_session(
session_id: str,
request: Request,
response: Response,
user_id: Optional[str] = None
):
"""
Delete a session
Args:
session_id: Session ID
request: FastAPI request object
response: FastAPI response object
user_id: User ID (optional)
Returns:
Dictionary with status and message
"""
# Get or create user ID if not provided
if not user_id:
user_id = get_or_create_user_id(request, response)
# Validate session exists
if session_id not in user_sessions:
raise HTTPException(status_code=404, detail=f"Session {session_id} not found")
# Validate user owns the session
if user_sessions[session_id].get("user_id") != user_id:
raise HTTPException(status_code=403, detail="You do not have permission to delete this session")
# Delete the session
try:
del user_sessions[session_id]
return {
"status": "success",
"message": f"Session {session_id} deleted successfully"
}
except Exception as e:
logger.error(f"Error deleting session: {str(e)}")
raise HTTPException(status_code=500, detail=f"Error deleting session: {str(e)}") |