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from fastapi import Response, Request
from fastapi import Depends, FastAPI, HTTPException, status
from datetime import datetime, timedelta
from typing import List, Union, Optional
from fastapi import APIRouter
from pydantic import BaseModel
import logging
from apps.webui.models.memories import Memories, MemoryModel
from utils.utils import get_verified_user
from constants import ERROR_MESSAGES
from config import SRC_LOG_LEVELS, CHROMA_CLIENT
log = logging.getLogger(__name__)
log.setLevel(SRC_LOG_LEVELS["MODELS"])
router = APIRouter()
@router.get("/ef")
async def get_embeddings(request: Request):
return {"result": request.app.state.EMBEDDING_FUNCTION("hello world")}
############################
# GetMemories
############################
@router.get("/", response_model=List[MemoryModel])
async def get_memories(user=Depends(get_verified_user)):
return Memories.get_memories_by_user_id(user.id)
############################
# AddMemory
############################
class AddMemoryForm(BaseModel):
content: str
@router.post("/add", response_model=Optional[MemoryModel])
async def add_memory(
request: Request, form_data: AddMemoryForm, user=Depends(get_verified_user)
):
memory = Memories.insert_new_memory(user.id, form_data.content)
memory_embedding = request.app.state.EMBEDDING_FUNCTION(memory.content)
collection = CHROMA_CLIENT.get_or_create_collection(name=f"user-memory-{user.id}")
collection.upsert(
documents=[memory.content],
ids=[memory.id],
embeddings=[memory_embedding],
metadatas=[{"created_at": memory.created_at}],
)
return memory
############################
# QueryMemory
############################
class QueryMemoryForm(BaseModel):
content: str
@router.post("/query")
async def query_memory(
request: Request, form_data: QueryMemoryForm, user=Depends(get_verified_user)
):
query_embedding = request.app.state.EMBEDDING_FUNCTION(form_data.content)
collection = CHROMA_CLIENT.get_or_create_collection(name=f"user-memory-{user.id}")
results = collection.query(
query_embeddings=[query_embedding],
n_results=1, # how many results to return
)
return results
############################
# ResetMemoryFromVectorDB
############################
@router.get("/reset", response_model=bool)
async def reset_memory_from_vector_db(
request: Request, user=Depends(get_verified_user)
):
CHROMA_CLIENT.delete_collection(f"user-memory-{user.id}")
collection = CHROMA_CLIENT.get_or_create_collection(name=f"user-memory-{user.id}")
memories = Memories.get_memories_by_user_id(user.id)
for memory in memories:
memory_embedding = request.app.state.EMBEDDING_FUNCTION(memory.content)
collection.upsert(
documents=[memory.content],
ids=[memory.id],
embeddings=[memory_embedding],
)
return True
############################
# DeleteMemoriesByUserId
############################
@router.delete("/user", response_model=bool)
async def delete_memory_by_user_id(user=Depends(get_verified_user)):
result = Memories.delete_memories_by_user_id(user.id)
if result:
try:
CHROMA_CLIENT.delete_collection(f"user-memory-{user.id}")
except Exception as e:
log.error(e)
return True
return False
############################
# DeleteMemoryById
############################
@router.delete("/{memory_id}", response_model=bool)
async def delete_memory_by_id(memory_id: str, user=Depends(get_verified_user)):
result = Memories.delete_memory_by_id_and_user_id(memory_id, user.id)
if result:
collection = CHROMA_CLIENT.get_or_create_collection(
name=f"user-memory-{user.id}"
)
collection.delete(ids=[memory_id])
return True
return False
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