app.py

from shiny import App, ui, render, reactive
import subprocess

app_ui = ui.page_sidebar(
    ui.sidebar(
        ui.input_action_button("install_ollama", "Install Ollama"),
        ui.input_action_button("run_ollama", "Run GPT-OSS:20B"),
    ),
    ui.panel_main(
        ui.input_text_area("user_message", "Type your message here...", height="100px"),
        ui.input_action_button("send", "Send"),
        ui.output_text_verbatim("chat_history"),
    )
)

def server(input, output, session):
    chat_history = reactive.Value("")

    @output
    @render.text
    def chat_history():
        return chat_history()

    @reactive.Effect
    @reactive.event(input.install_ollama)
    def install_ollama():
        try:
            subprocess.run(["curl", "-fsSL", "https://ollama.com/install.sh", "|", "sh"], check=True, shell=True)
            chat_history.set(chat_history() + "\nOllama installed successfully.")
        except subprocess.CalledProcessError as e:
            chat_history.set(chat_history() + f"\nError installing Ollama: {e}")

    @reactive.Effect
    @reactive.event(input.run_ollama)
    def run_ollama_model():
        try:
            subprocess.Popen(["ollama", "run", "gpt-oss:20b"])
            chat_history.set(chat_history() + "\nRunning GPT-OSS:20B model.")
        except Exception as e:
            chat_history.set(chat_history() + f"\nError running model: {e}")

    @reactive.Effect
    @reactive.event(input.send)
    def send_message():
        user_message = input.user_message()
        if user_message:
            chat_history.set(chat_history() + f"\nYou: {user_message}")
            # Here you would typically send the message to the chat server and get a response
            # For now, we'll just echo the message
            chat_history.set(chat_history() + f"\nBot: {user_message}")

app = App(app_ui, server)