gui.py•2.89 kB
"""Simple Tkinter GUI to launch the Race MCP server."""
from __future__ import annotations
import os
import subprocess
import sys
import threading
import tkinter as tk
from tkinter.scrolledtext import ScrolledText
class MCPServerGUI:
"""Basic GUI for starting and stopping the Race MCP server."""
def __init__(self, root: tk.Tk) -> None:
self.root = root
root.title("Race MCP Server")
self.start_button = tk.Button(
root, text="Start MCP Server", command=self.start_server
)
self.start_button.pack(pady=5)
self.stop_button = tk.Button(
root, text="Stop MCP Server", command=self.stop_server, state=tk.DISABLED
)
self.stop_button.pack(pady=5)
self.log_output = ScrolledText(root, state="disabled", height=20, width=80)
self.log_output.pack(padx=5, pady=5)
self.process: subprocess.Popen[str] | None = None
self.reader_thread: threading.Thread | None = None
self.root.protocol("WM_DELETE_WINDOW", self.on_close)
def start_server(self) -> None:
"""Launch the MCP server in a subprocess."""
if self.process is not None:
return
cmd = [sys.executable, "-m", "race_mcp_server.main"]
env = os.environ.copy()
self.process = subprocess.Popen(
cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True, env=env
)
self.start_button.config(state=tk.DISABLED)
self.stop_button.config(state=tk.NORMAL)
self.reader_thread = threading.Thread(target=self._read_output, daemon=True)
self.reader_thread.start()
def _read_output(self) -> None:
"""Read server output and display it in the log window."""
assert self.process is not None and self.process.stdout is not None
for line in self.process.stdout:
self.log_output.configure(state="normal")
self.log_output.insert(tk.END, line)
self.log_output.configure(state="disabled")
self.log_output.yview(tk.END)
def stop_server(self) -> None:
"""Terminate the MCP server process."""
if self.process is None:
return
self.process.terminate()
try:
self.process.wait(timeout=5)
except subprocess.TimeoutExpired:
self.process.kill()
self.process.wait()
finally:
self.process = None
self.start_button.config(state=tk.NORMAL)
self.stop_button.config(state=tk.DISABLED)
def on_close(self) -> None:
"""Handle window close by stopping the server and closing GUI."""
self.stop_server()
self.root.destroy()
def main() -> None:
"""Run the GUI application."""
root = tk.Tk()
MCPServerGUI(root)
root.mainloop()
if __name__ == "__main__":
main()