app.py

import os
import threading
import subprocess
import gradio as gr
from llama_index.llms.ollama import Ollama
from llama_index.core.llms import ChatMessage

# Fonction pour démarrer le serveur Ollama
def start_ollama():
    os.environ['OLLAMA_HOST'] = '127.0.0.1:11434'
    os.environ['OLLAMA_ORIGINS'] = '*'
    subprocess.run(["ollama", "serve"])

# Démarrer le serveur Ollama dans un thread séparé
ollama_thread = threading.Thread(target=start_ollama)
ollama_thread.start()

# Initialiser le modèle Ollama
llm = Ollama(model="llama3", request_timeout=120.0)

def get_completion(prompt):
    response = llm.complete(prompt)
    return response

def chat_with_llm(messages):
    chat_messages = [ChatMessage(role=msg["role"], content=msg["content"]) for msg in messages]
    response = llm.chat(chat_messages)
    return response

def generate_response(prompt):
    return get_completion(prompt)

def generate_chat_response(history):
    messages = [{"role": "system", "content": "You are a pirate with a colorful personality"}]
    for item in history:
        messages.append({"role": "user", "content": item[0]})
        if item[1]:
            messages.append({"role": "assistant", "content": item[1]})
    response = chat_with_llm(messages)
    return response["content"]

single_input = gr.Textbox(lines=2, placeholder="Enter your prompt here...")
single_output = gr.Textbox()
single_interface = gr.Interface(fn=generate_response, inputs=single_input, outputs=single_output, title="LLM Single Completion")

chat_input = gr.Chatbot()
chat_output = gr.Textbox()
chat_interface = gr.Interface(fn=generate_chat_response, inputs=chat_input, outputs=chat_output, title="LLM Chat")

app = gr.TabbedInterface([single_interface, chat_interface], ["Single Completion", "Chat"])

if __name__ == "__main__":
    app.launch(server_name="0.0.0.0", server_port=7860)