import json

def load_history(user):
    try:
        with open(f"{user}.json", "r") as f:
            return json.load(f)
    except:
        return []

def save_history(user, history):
    with open(f"{user}.json", "w") as f:
        json.dump(history, f)
import gradio as gr
from openai import OpenAI
import os


client = OpenAI(api_key=os.getenv("OPENAI_API_KEY"))

USER_SESSIONS = {}

def respond(username, message, history):
    if username not in USER_SESSIONS:
        USER_SESSIONS[username] = []

    history = USER_SESSIONS[username]





    messages = [{"role": "system", "content": "You are a helpful assistant."}]
    for u, b in history:
        messages.append({"role": "user", "content": u})
        messages.append({"role": "assistant", "content": b})
    messages.append({"role": "user", "content": message})

    response = client.chat.completions.create(
        model="gpt-4o-mini",
        messages=messages
    )

    reply = response.choices[0].message.content
    history.append((message, reply))
    USER_SESSIONS[username] = history

    return "", history

with gr.Blocks() as demo:
    gr.Markdown("## 🔐 Login")
    username = gr.Textbox(label="Username")

    chatbot = gr.Chatbot(height=400)
    msg = gr.Textbox(placeholder="Type your message…", show_label=False)

    msg.submit(respond, [username, msg, chatbot], [msg, chatbot])

demo.launch()
from fastapi import FastAPI
from fastapi.responses import FileResponse











from openai import OpenAI
import os

app = FastAPI()
client = OpenAI(api_key=os.getenv("OPENAI_API_KEY"))

@app.get("/")
def root():
    return FileResponse("static/index.html")



@app.post("/chat")
async def chat(data: dict):
    messages = [
        {"role": "system", "content": "You are ChatGPT. Be helpful and concise."}
    ] + data["messages"]

    res = client.chat.completions.create(






        model="gpt-4o-mini",
        messages=messages
    )

    return res.choices[0].message















@app.post("/rename-chat")
def rename_chat(data: dict):
    supabase.table("conversations") \
      .update({"title": data["title"]}) \
      .eq("id", data["id"]) \
      .execute()
    return {"ok": True}

@app.post("/rename-chat")
def rename_chat(data: dict):
    supabase.table("conversations") \
      .update({"title": data["title"]}) \
      .eq("id", data["id"]) \
      .execute()
    return {"ok": True}



@app.post("/rename-chat")
def rename_chat(data: dict):
    supabase.table("conversations") \
        .update({"title": data["title"]}) \
        .eq("id", data["id"]) \
        .execute()
    return {"ok": True}