app.py

import io
import os
import tempfile
from functions import *
from langchain_community.document_loaders import PDFMinerLoader
import pandas as pd
from fastapi import FastAPI, File, UploadFile
from pydantic import BaseModel
from fastapi.middleware.cors import CORSMiddleware
from langchain_community.document_loaders import WebBaseLoader
from src.api.speech_api import speech_translator_router
from functions import client as supabase
from urllib.parse import urlparse

app = FastAPI(title="ConversAI", root_path="/api/v1")

app.add_middleware(
 CORSMiddleware,
 allow_origins=["*"],
 allow_credentials=True,
 allow_methods=["*"],
 allow_headers=["*"],
)

app.include_router(speech_translator_router, prefix="/speech")


@app.post("/signup")
async def sign_up(email, username, password):
 res, _ = supabase.auth.sign_up(
 {"email": email, "password": password, "role": "user"}
 )
 user_id = res[1].id
 r_ = createUser(user_id=user_id, username=username)

 response = {
 "status": "success",
 "code": 200,
 "message": "Please check you email address for email verification",
 }

 return response


@app.post("/session-check")
async def check_session():
 res = supabase.auth.get_session()

 return res


@app.post("/login")
async def sign_in(email, password):
 try:
 res = supabase.auth.sign_in_with_password(
 {"email": email, "password": password}
 )
 user_id = res.user.id
 access_token = res.session.access_token
 refresh_token = res.session.refresh_token

 store_session_check = supabase.table("Stores").select("*").filter("StoreID", "eq", user_id).execute()
 store_id = None

 if store_session_check and store_session_check.data:
 store_id = store_session_check.data[0].get("StoreID")

 if not store_id:
 response = (
 supabase.table("Stores").insert(
 {
 "AccessToken": access_token,
 "StoreID": user_id,
 "RefreshToken": refresh_token,
 }
 ).execute()
 )

 message = {
 "message": "Success",
 "code": status.HTTP_200_OK,
 "user_id": user_id,
 "access_token": access_token,
 "refresh_token": refresh_token
 }
 return message

 elif store_id == user_id:
 raise HTTPException(
 status_code=status.HTTP_400_BAD_REQUEST,
 detail="You are already signed in. Please sign out first to sign in again."
 )

 else:
 raise HTTPException(
 status_code=status.HTTP_400_BAD_REQUEST,
 detail="Failed to sign in. Please check your credentials."
 )

 except HTTPException as http_exc:
 raise http_exc

 except Exception as e:
 raise HTTPException(
 status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
 detail=f"An unexpected error occurred during sign-in: {str(e)}"
 )


@app.post("/set-session-data")
async def set_session_data(access_token, refresh_token):
 res = supabase.auth.set_session(access_token, refresh_token)

 return res


@app.post("/logout")
async def sign_out(user_id):
 try:
 supabase.table("Stores").delete().eq(
 "StoreID", user_id
 ).execute()
 res = supabase.auth.sign_out()
 response = {"message": "success"}

 return response
 except Exception as e:
 raise HTTPException(status_code=400, detail=str(e))


@app.post("/oauth")
async def oauth(provider):
 res = supabase.auth.sign_in_with_oauth(provider)

 return res


@app.post("/newChatbot")
async def newChatbot(chatbotName: str, username: str):
 currentBotCount = len(listTables(username=username)["output"])
 limit = client.table("ConversAI_UserConfig").select("chatbotLimit").eq("user_id", username).execute().data[0][
 "chatbotLimit"]
 if currentBotCount >= int(limit):
 return {
 "output": "CHATBOT LIMIT EXCEEDED"
 }
 client.table("ConversAI_ChatbotInfo").insert({"user_id": username, "chatbotname": chatbotName}).execute()
 chatbotName = f"convai${username}${chatbotName}"
 return createTable(tablename=chatbotName)


@app.post("/addPDF")
async def addPDFData(vectorstore: str, pdf: UploadFile = File(...)):
 source = pdf.filename
 pdf = await pdf.read()
 with tempfile.NamedTemporaryFile(delete=False, suffix='.pdf') as temp_file:
 temp_file.write(pdf)
 temp_file_path = temp_file.name
 loader = PDFMinerLoader(file_path = temp_file_path, concatenate_pages = True)
 text = loader.load()[0].page_content
 os.remove(temp_file_path)
 username, chatbotname = vectorstore.split("$")[1], vectorstore.split("$")[2]
 df = pd.DataFrame(client.table("ConversAI_ChatbotInfo").select("*").execute().data)
 currentCount = df[(df["user_id"] == username) & (df["chatbotname"] == chatbotname)]["charactercount"].iloc[0]
 limit = client.table("ConversAI_UserConfig").select("tokenLimit").eq("user_id", username).execute().data[0][
 "tokenLimit"]
 newCount = currentCount + len(text)
 if newCount < int(limit):
 client.table("ConversAI_ChatbotInfo").update({"charactercount": str(newCount)}).eq("user_id", username).eq(
 "chatbotname", chatbotname).execute()
 return addDocuments(text=text, source=source, vectorstore=vectorstore)
 else:
 return {
 "output": "DOCUMENT EXCEEDING LIMITS, PLEASE TRY WITH A SMALLER DOCUMENT."
 }


@app.post("/scanAndReturnText")
async def returnText(pdf: UploadFile = File(...)):
 pdf = await pdf.read()
 text = getTextFromImagePDF(pdfBytes=pdf)
 return text


@app.post("/addText")
async def addText(vectorstore: str, text: str):
 username, chatbotname = vectorstore.split("$")[1], vectorstore.split("$")[2]
 df = pd.DataFrame(client.table("ConversAI_ChatbotInfo").select("*").execute().data)
 currentCount = df[(df["user_id"] == username) & (df["chatbotname"] == chatbotname)]["charactercount"].iloc[0]
 newCount = currentCount + len(text)
 limit = client.table("ConversAI_UserConfig").select("tokenLimit").eq("user_id", username).execute().data[0][
 "tokenLimit"]
 if newCount < int(limit):
 client.table("ConversAI_ChatbotInfo").update({"charactercount": str(newCount)}).eq("user_id", username).eq(
 "chatbotname", chatbotname).execute()
 return addDocuments(text=text, source="text", vectorstore=vectorstore)
 else:
 return {
 "output": "WEBSITE EXCEEDING LIMITS, PLEASE TRY WITH A SMALLER DOCUMENT."
 }


class AddQAPair(BaseModel):
 vectorstore: str
 question: str
 answer: str


@app.post("/addQAPair")
async def addText(addQaPair: AddQAPair):
 username, chatbotname = addQaPair.vectorstore.split("$")[1], addQaPair.vectorstore.split("$")[2]
 df = pd.DataFrame(client.table("ConversAI_ChatbotInfo").select("*").execute().data)
 currentCount = df[(df["user_id"] == username) & (df["chatbotname"] == chatbotname)]["charactercount"].iloc[0]
 qa = f"QUESTION: {addQaPair.question}\tANSWER: {addQaPair.answer}"
 newCount = currentCount + len(qa)
 limit = client.table("ConversAI_UserConfig").select("tokenLimit").eq("user_id", username).execute().data[0][
 "tokenLimit"]
 if newCount < int(limit):
 client.table("ConversAI_ChatbotInfo").update({"charactercount": str(newCount)}).eq("user_id", username).eq(
 "chatbotname", chatbotname).execute()
 return addDocuments(text=qa, source="Q&A Pairs", vectorstore=addQaPair.vectorstore)
 else:
 return {
 "output": "WEBSITE EXCEEDING LIMITS, PLEASE TRY WITH A SMALLER DOCUMENT."
 }


@app.post("/addWebsite")
async def addWebsite(vectorstore: str, websiteUrls: list[str]):
 loader = UnstructuredURLLoader(urls=websiteUrls)
 docs = loader.load()
 text = "\n\n".join(
 [f"{docs[doc].page_content}" for doc in range(len(docs))]
 )
 username, chatbotname = vectorstore.split("$")[1], vectorstore.split("$")[2]
 df = pd.DataFrame(client.table("ConversAI_ChatbotInfo").select("*").execute().data)
 currentCount = df[(df["user_id"] == username) & (df["chatbotname"] == chatbotname)]["charactercount"].iloc[0]
 newCount = currentCount + len(text)
 limit = client.table("ConversAI_UserConfig").select("tokenLimit").eq("user_id", username).execute().data[0][
 "tokenLimit"]
 if newCount < int(limit):
 client.table("ConversAI_ChatbotInfo").update({"charactercount": str(newCount)}).eq("user_id", username).eq(
 "chatbotname", chatbotname).execute()
 return addDocuments(text=text, source=urlparse(websiteUrls[0]).netloc, vectorstore=vectorstore)
 else:
 return {
 "output": "WEBSITE EXCEEDING LIMITS, PLEASE TRY WITH A SMALLER DOCUMENT."
 }


@app.post("/answerQuery")
async def answerQuestion(query: str, vectorstore: str, llmModel: str = "llama3-70b-8192"):
 return answerQuery(query=query, vectorstore=vectorstore, llmModel=llmModel)


@app.post("/deleteChatbot")
async def delete(chatbotName: str):
 username, chatbotName = chatbotName.split("$")[1], chatbotName.split("$")[2]
 client.table('ConversAI_ChatbotInfo').delete().eq('user_id', username).eq('chatbotname', chatbotName).execute()
 return deleteTable(tableName=chatbotName)


@app.post("/listChatbots")
async def delete(username: str):
 return listTables(username=username)


@app.post("/getLinks")
async def crawlUrl(baseUrl: str):
 return {
 "urls": getLinks(url=baseUrl, timeout=30)
 }


@app.post("/getCurrentCount")
async def getCount(vectorstore: str):
 username, chatbotName = vectorstore.split("$")[1], vectorstore.split("$")[2]
 df = pd.DataFrame(client.table("ConversAI_ChatbotInfo").select("*").execute().data)
 return {
 "currentCount": df[(df['user_id'] == username) & (df['chatbotname'] == chatbotName)]['charactercount'].iloc[0]
 }


@app.post("/getYoutubeTranscript")
async def getYTTranscript(urls: str):
 return {
 "transcript": getTranscript(urls=urls)
 }


@app.post("/analyzeData")
async def analyzeAndAnswer(query: str, file: UploadFile = File(...)):
 extension = file.filename.split(".")[-1]
 try:
 if extension in ["xls", "xlsx", "xlsm", "xlsb"]:
 df = pd.read_excel(io.BytesIO(await file.read()))
 response = analyzeData(query=query, dataframe=df)
 elif extension == "csv":
 df = pd.read_csv(io.BytesIO(await file.read()))
 response = analyzeData(query=query, dataframe=df)
 else:
 response = "INVALID FILE TYPE"
 return {
 "output": response
 }
 except:
 return {
 "output": "UNABLE TO ANSWER QUERY"
 }