from http.server import HTTPServer, BaseHTTPRequestHandler
import threading

class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.send_header('Content-type', 'text/plain')
        self.end_headers()
        self.wfile.write(b'Hello, World!')

class HTTPService:
    def __init__(self, host='localhost', port=8000):
        self.host = host
        self.port = port
        self.server = None
        self.thread = None

    def start(self):
        self.server = HTTPServer((self.host, self.port), SimpleHTTPRequestHandler)
        self.thread = threading.Thread(target=self.server.serve_forever)
        self.thread.start()
        print(f"HTTP service started on http://{self.host}:{self.port}")

    def stop(self):
        if self.server:
            self.server.shutdown()
            self.server.server_close()
            self.thread.join()
            print("HTTP service stopped")

http_service = HTTPService()

def initialize():
    http_service.start()

def shutdown():
    http_service.stop()