#!/usr/bin/env python3
"""Local static server with Cache-Control: no-store (port 7860)."""

from http.server import SimpleHTTPRequestHandler, ThreadingHTTPServer

PORT = 7860


class NoCacheHandler(SimpleHTTPRequestHandler):
    def end_headers(self) -> None:
        self.send_header("Cache-Control", "no-store, no-cache, must-revalidate, max-age=0")
        self.send_header("Pragma", "no-cache")
        self.send_header("Expires", "0")
        super().end_headers()


if __name__ == "__main__":
    httpd = ThreadingHTTPServer(("127.0.0.1", PORT), NoCacheHandler)
    print(f"Serving on http://127.0.0.1:{PORT}  (no-cache)")
    try:
        httpd.serve_forever()
    except KeyboardInterrupt:
        print()
        httpd.server_close()